Beispiel #1
0
void c_end_catch(error_context_t *  econ) {
    free_svalue(&catch_value, "F_END_CATCH");
    catch_value = const0;
    /* We come here when no longjmp() was executed */
    pop_control_stack();
    push_number(0);
    pop_context(econ);
}
Beispiel #2
0
/* New version used when not in -o mode. The epilog() in master.c is
 * supposed to return an array of files (castles in 2.4.5) to load. The array
 * returned by apply() will be freed at next call of apply(), which means that
 * the ref count has to be incremented to protect against deallocation.
 *
 * The master object is asked to do the actual loading.
 */
void preload_objects (int eflag)
{
    VOLATILE array_t *prefiles;
    svalue_t *ret;
    VOLATILE int ix;
    error_context_t econ;

    save_context(&econ);
    if (SETJMP(econ.context)) {
        restore_context(&econ);
        pop_context(&econ);
        return;
    }
    push_number(eflag);
    ret = apply_master_ob(APPLY_EPILOG, 1);
    pop_context(&econ);
    if ((ret == 0) || (ret == (svalue_t *)-1) || (ret->type != T_ARRAY))
        return;
    else
        prefiles = ret->u.arr;
    if ((prefiles == 0) || (prefiles->size < 1))
        return;

    debug_message("\nLoading preloaded files ...\n");
    prefiles->ref++;
    ix = 0;
    /* in case of an error, effectively do a 'continue' */
    save_context(&econ);
    if (SETJMP(econ.context)) {
        restore_context(&econ);
        ix++;
    }
    for ( ; ix < prefiles->size; ix++) {
        if (prefiles->item[ix].type != T_STRING)
            continue;

        set_eval(max_cost);

        push_svalue(((array_t *)prefiles)->item + ix);
        (void) apply_master_ob(APPLY_PRELOAD, 1);
    }
    free_array((array_t *)prefiles);
    pop_context(&econ);
}       /* preload_objects() */
Beispiel #3
0
/* Should NOT be called with cs_error held */
KHMEXP void KHMAPI
kherr_pop_context(void)
{
    kherr_context * c;

    EnterCriticalSection(&cs_error);
    c = pop_context();
    if(IS_KHERR_CTX(c)) {
        release_context(c);
    }
    LeaveCriticalSection(&cs_error);
}
Beispiel #4
0
void c_caught_error(error_context_t *  econ) {
    restore_context(econ);
    STACK_INC;
    *sp = catch_value;
    catch_value = const1;

    /* if it's too deep or max eval, we can't let them catch it */
    pop_context(econ);
    if (max_eval_error)
	error("Can't catch eval cost too big error.\n");
    if (too_deep_error)
	error("Can't catch too deep recursion error.\n");
}
Beispiel #5
0
// -----------------------------------------------------------------------------
void                hron__finalize      (hron__parser_state parser_state)
{
    secret__scanner_state * ss  = parser_state;
    if (!ss)
    {
        return;
    }

    ss->parser_state.indention = 0;
    pop_context (ss);

    ss->parser_state.document__end (ss->parser_state.payload);

    free(ss);
}
void
cp_genericize (tree fndecl)
{
  tree t;
  struct pointer_set_t *p_set;

  /* Fix up the types of parms passed by invisible reference.  */
  for (t = DECL_ARGUMENTS (fndecl); t; t = TREE_CHAIN (t))
    if (TREE_ADDRESSABLE (TREE_TYPE (t)))
      {
	/* If a function's arguments are copied to create a thunk,
	   then DECL_BY_REFERENCE will be set -- but the type of the
	   argument will be a pointer type, so we will never get
	   here.  */
	gcc_assert (!DECL_BY_REFERENCE (t));
	gcc_assert (DECL_ARG_TYPE (t) != TREE_TYPE (t));
	TREE_TYPE (t) = DECL_ARG_TYPE (t);
	DECL_BY_REFERENCE (t) = 1;
	TREE_ADDRESSABLE (t) = 0;
	relayout_decl (t);
      }

  /* Do the same for the return value.  */
  if (TREE_ADDRESSABLE (TREE_TYPE (DECL_RESULT (fndecl))))
    {
      t = DECL_RESULT (fndecl);
      TREE_TYPE (t) = build_reference_type (TREE_TYPE (t));
      DECL_BY_REFERENCE (t) = 1;
      TREE_ADDRESSABLE (t) = 0;
      relayout_decl (t);
    }

  /* If we're a clone, the body is already GIMPLE.  */
  if (DECL_CLONED_FUNCTION_P (fndecl))
    return;

  /* We do want to see every occurrence of the parms, so we can't just use
     walk_tree's hash functionality.  */
  p_set = pointer_set_create ();
  walk_tree (&DECL_SAVED_TREE (fndecl), cp_genericize_r, p_set, NULL);
  pointer_set_destroy (p_set);

  /* Do everything else.  */
  push_context ();
  c_genericize (fndecl);
  pop_context ();
}
Beispiel #7
0
enum thing layer_to_board_object_type(struct world *mzx_world)
{
  int dialog_result;
  struct element *elements[3];
  struct dialog di;
  int object_type = 0;
  const char *radio_button_strings[] =
  {
    "Custom Block",
    "Custom Floor",
    "Text"
  };

  // Prevent previous keys from carrying through.
  force_release_all_keys();

  set_context(CTX_BLOCK_TYPE);
  elements[0] = construct_radio_button(6, 4, radio_button_strings,
   3, 12, &object_type);
  elements[1] = construct_button(5, 11, "OK", 0);
  elements[2] = construct_button(15, 11, "Cancel", -1);

  construct_dialog(&di, "Object type", 26, 4, 28, 14,
   elements, 3, 0);

  dialog_result = run_dialog(mzx_world, &di);

  destruct_dialog(&di);
  pop_context();

  // Prevent UI keys from carrying through.
  force_release_all_keys();

  if(dialog_result)
    return NO_ID;

  switch(object_type)
  {
    case 0: return CUSTOM_BLOCK;
    case 1: return CUSTOM_FLOOR;
    case 2: return __TEXT;
  }

  return NO_ID;
}
Beispiel #8
0
svalue_t *
safe_call_function_pointer (funptr_t * funp, int num_arg)
{
    error_context_t econ;
    svalue_t *ret;

    if (!save_context(&econ))
        return 0;
    if (!SETJMP(econ.context)) {
        ret = call_function_pointer(funp, num_arg);
    } else {
        restore_context(&econ);
        /* condition was restored to where it was when we came in */
        pop_n_elems(num_arg);
        ret = 0;
    }
    pop_context(&econ);
    return ret;
}
Beispiel #9
0
void
c_genericize (tree fndecl)
{
  FILE *dump_file;
  int local_dump_flags;
  struct cgraph_node *cgn;

  /* Dump the C-specific tree IR.  */
  dump_file = dump_begin (TDI_original, &local_dump_flags);
  if (dump_file)
    {
      fprintf (dump_file, "\n;; Function %s",
	       lang_hooks.decl_printable_name (fndecl, 2));
      fprintf (dump_file, " (%s)\n",
	       IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl)));
      fprintf (dump_file, ";; enabled by -%s\n", dump_flag_name (TDI_original));
      fprintf (dump_file, "\n");

      if (local_dump_flags & TDF_RAW)
	dump_node (DECL_SAVED_TREE (fndecl),
		   TDF_SLIM | local_dump_flags, dump_file);
      else
	print_c_tree (dump_file, DECL_SAVED_TREE (fndecl));
      fprintf (dump_file, "\n");

      dump_end (TDI_original, dump_file);
    }

  /* Go ahead and gimplify for now.  */
  push_context ();
  gimplify_function_tree (fndecl);
  pop_context ();

  /* Dump the genericized tree IR.  */
  dump_function (TDI_generic, fndecl);

  /* Genericize all nested functions now.  We do things in this order so
     that items like VLA sizes are expanded properly in the context of
     the correct function.  */
  cgn = cgraph_node (fndecl);
  for (cgn = cgn->nested; cgn ; cgn = cgn->next_nested)
    c_genericize (cgn->decl);
}
Beispiel #10
0
/*
 * Despite the name, this routine takes care of several things.
 * It will run once every 15 minutes.
 *
 * . It will attempt to reconnect to the address server if the connection has
 *   been lost.
 * . It will loop through all objects.
 *
 *   . If an object is found in a state of not having done reset, and the
 *     delay to next reset has passed, then reset() will be done.
 *
 *   . If the object has a existed more than the time limit given for swapping,
 *     then 'clean_up' will first be called in the object
 *
 * There are some problems if the object self-destructs in clean_up, so
 * special care has to be taken of how the linked list is used.
 */
static void look_for_objects_to_swap()
{
    static int next_time;
#ifndef NO_IP_DEMON
    extern int no_ip_demon;
    static int next_server_time;
#endif
    object_t *ob;
    VOLATILE object_t *next_ob;
    error_context_t econ;

#ifndef NO_IP_DEMON
    if (current_time >= next_server_time) {
        /* initialize the address server.  if it is already initialized, then
         * this is a nop.  this will cause the driver to reattempt connecting
         * to the address server once every 15 minutes in the event that it
         * has gone down.
         */
        if (!no_ip_demon && next_server_time)
            init_addr_server(ADDR_SERVER_IP, ADDR_SERVER_PORT);
        next_server_time = current_time + 15 * 60;
    }
#endif

    if (current_time < next_time)
        return;     /* Not time to look yet */
    next_time = current_time + 5 * 60; /* Next time is in 5 minutes */

    /*
     * Objects object can be destructed, which means that next object to
     * investigate is saved in next_ob. If very unlucky, that object can be
     * destructed too. In that case, the loop is simply restarted.
     */
    next_ob = obj_list;
    save_context(&econ);
    if (SETJMP(econ.context))
        restore_context(&econ);

    while ((ob = (object_t *)next_ob)) {
        int ready_for_clean_up = 0;

        if (ob->flags & O_DESTRUCTED)
            ob = obj_list;  /* restart */
        next_ob = ob->next_all;

        /*
         * Check reference time before reset() is called.
         */
        if (current_time - ob->time_of_ref > time_to_clean_up)
            ready_for_clean_up = 1;
#if !defined(NO_RESETS) && !defined(LAZY_RESETS)
        /*
         * Should this object have reset(1) called ?
         */
        if ((ob->flags & O_WILL_RESET) && (ob->next_reset < current_time)
                && !(ob->flags & O_RESET_STATE)) {
            debug(d_flag, ("RESET /%s\n", ob->obname));
            set_eval(max_cost);
            reset_object(ob);
            if(ob->flags & O_DESTRUCTED)
                continue;
        }
#endif
        if (time_to_clean_up > 0) {
            /*
             * Has enough time passed, to give the object a chance to
             * self-destruct ? Save the O_RESET_STATE, which will be cleared.
             *
             * Only call clean_up in objects that has defined such a function.
             *
             * Only if the clean_up returns a non-zero value, will it be called
             * again.
             */

            if (ready_for_clean_up && (ob->flags & O_WILL_CLEAN_UP)) {
                int save_reset_state = ob->flags & O_RESET_STATE;
                svalue_t *svp;

                debug(d_flag, ("clean up /%s\n", ob->obname));

                /*
                 * Supply a flag to the object that says if this program is
                 * inherited by other objects. Cloned objects might as well
                 * believe they are not inherited. Swapped objects will not
                 * have a ref count > 1 (and will have an invalid ob->prog
                 * pointer).
                 *
                 * Note that if it is in the apply_low cache, it will also
                 * get a flag of 1, which may cause the mudlib not to clean
                 * up the object.  This isn't bad because:
                 * (1) one expects it is rare for objects that have untouched
                 * long enough to clean_up to still be in the cache, especially
                 * on busy MUDs.
                 * (2) the ones that are are the more heavily used ones, so
                 * keeping them around seems justified.
                 */

                push_number(ob->flags & (O_CLONE) ? 0 : ob->prog->ref);
                set_eval(max_cost);
                svp = apply(APPLY_CLEAN_UP, ob, 1, ORIGIN_DRIVER);
                if (ob->flags & O_DESTRUCTED)
                    continue;
                if (!svp || (svp->type == T_NUMBER && svp->u.number == 0))
                    ob->flags &= ~O_WILL_CLEAN_UP;
                ob->flags |= save_reset_state;
            }
        }
    }
    pop_context(&econ);
}       /* look_for_objects_to_swap() */
Beispiel #11
0
/*
 *	DO statement
 *	Handles DO;, DO CASE, DO WHILE, and iterative DO
 */
void
parse_do(TOKEN *first_token)
{
    TOKEN		token;
    int		token_class;
    int		case_line;
    char		case_statement[MAX_TOKEN_LENGTH];
    char		case_output[MAX_CASE_STATEMENT_SIZE];
    char		var_string[MAX_TOKEN_LENGTH];
    char		*temp_out_string, *temp_out_string1;
    DECL_MEMBER	*var_decl;
    DECL_ID		*var_decl_id;

    /* Create new context */
    new_context(DO, (TOKEN *) NULL);

    out_white_space(first_token);

    /* Determine what kind of DO statement */
    token_class = get_token(&token);

    switch (token_class) {

    case END_OF_LINE :
        /* DO; */
        out_white_space(&token);
        out_char('{');			/* } for dumb vi */
        parse_to_end();
        break;

    case IDENTIFIER :
        /* DO counter = start TO limit BY step */
        out_str("for");
        out_must_white(&token);
        out_char('(');

        /* Put full variable in var_string */
        var_string[0] = '\0';
        temp_out_string = out_string;
        out_string = var_string;
        token_class = parse_variable(&token, &var_decl, &var_decl_id);
        out_string = temp_out_string;

        /* Check for '=' */
        if ((token_class != OPERATOR) ||
                (token.token_type != EQUAL)) {
            parse_error("Missing '='");
            pop_context();
            return;
        }
        /* Send <ident> '=' <expr> */
        out_str(var_string);
        out_token(&token);
        token_class = parse_expression(&token);
        if ((token_class != RESERVED) ||
                (token.token_type != TO)) {
            parse_error("Missing TO");
            pop_context();
            return;
        }

        /* Send <ident> <= <limit> */
        out_str("; ");
        out_str(var_string);
        out_str(" <=");
        token_class = parse_expression(&token);
        out_str("; ");

        /* Parse increment */
        if ((token_class == RESERVED) &&
                (token.token_type == BY)) {

            /* Send <ident> += <step> */
            out_str(var_string);
            out_str(" +=");
            token_class = parse_expression(&token);
        } else {
            /* Send <ident>++ */
            out_str(var_string);
            out_str("++");
        }

        out_str(") {");		/* } for dumb vi */
        out_white_space(&token);

        if (token_class != END_OF_LINE) {
            parse_error("BY or ';' expected");
            pop_context();
            return;
        }

        parse_to_end();
        break;

    case RESERVED :
        switch (token.token_type) {

        case CASE :
            /* DO CASE <expr>; */
            out_str("switch (");
            if (parse_expression(&token) != END_OF_LINE) {
                parse_error("';' expected");
                pop_context();
                return;
            }
            out_white_space(&token);
            out_str(") {");		/* } for dumb vi */

            case_line = 0;
            while (1) {
                /* Place case statement in out_string */
                temp_out_string1 = out_string;
                case_output[0] = '\0';
                out_string = case_output;

                (void) snprintf(case_statement, sizeof(case_statement), "case %d :",
                                case_line++);
                token_class = parse_new_statement();
                if (token_class == END_OF_FILE) {
                    parse_error("Premature end-of-file");
                    exit(1);
                }
                if (token_class == END) {
                    out_string = temp_out_string1;
                    out_str(case_output);
                    break;
                }
                out_string = temp_out_string1;
                out_white_space(first_token);
                out_str(case_statement);
                out_str(case_output);
                out_white_space(first_token);
                out_str("break;\n");
            }
            break;

        case WHILE :
            /* DO WHILE <expr>; */
            out_str("while (");
            if (parse_expression(&token) != END_OF_LINE) {
                parse_error("';' expected");
                pop_context();
                return;
            }
            out_white_space(&token);
            out_str(") {");		/* } for dumb vi */

            parse_to_end();
            break;

        default:
            parse_error("Illegal DO clause");
            pop_context();
            return;
        }
        break;
    }

    /* End of context */
    pop_context();
}
Beispiel #12
0
/*
 *	Parse statement starting with an identifier.
 *	Possibilities include:
 *		Assignment
 *		Procedure statement
 */
void
parse_identifier(TOKEN *first_token)
{
    TOKEN		token, next_token;
    TOKEN		param_token, attrib_token, type_token;
    int		token_class, next_token_class;
    DECL		*decl_list, *extra_decl_list;
    PARAM_LIST	*param_list, *param_ptr;
    DECL_MEMBER	*decl_ptr;
    DECL_ID		*decl_id;
    BOOLEAN		extern_proc, got_type, interrupt_proc;
    char		*tmp_text_ptr;

    /* Check for label or procedure */
    tmp_text_ptr = text_ptr;
    token_class = get_token(&token);

    if (token_class == LABEL) {
        /* Determine if label or procedure definition */
        next_token_class = get_token(&next_token);
        if ((next_token_class == RESERVED) &&
                (next_token.token_type == PROCEDURE)) {
            /*
             *	Procedure - Check for parameter list
             */
            param_list = NULL;
            token_class = get_token(&param_token);
            if (token_class == LEFT_PAREN) {
                /* Yes - get parameter list */
                get_param_list(&param_list);

                /* Get token after parameter list */
                token_class = get_token(&attrib_token);
            } else
                /* No param list - save as attribute */
                token_copy(&param_token, &attrib_token);

            out_white_space(first_token);
            extern_proc = FALSE;
            interrupt_proc = FALSE;

            got_type = (token_class == RESERVED) &&
                       (attrib_token.token_type >= BYTE) &&
                       (attrib_token.token_type <= SELECTOR);
            if (got_type) {
                /*
                 *	Process [ <type> ]
                 */
                token_copy(&attrib_token, &type_token);
                token_class = get_token(&attrib_token);
            }

            while (token_class == RESERVED) {
                if (attrib_token.token_type == INTERRUPT) {
                    /*
                     *	Process [ <interrupt> ]
                     */
                    interrupt_proc = TRUE;
                    token_class = get_token(&attrib_token);
                    if (token_class == NUMERIC)
                        /* Interrupt number */
                        token_class = get_token(&attrib_token);
                } else

                    /*
                     *	Process [ EXTERNAL |  { [ PUBLIC ] [ REENTRANT ] } ]
                     */
                    if (attrib_token.token_type == EXTERNAL) {
                        out_str("extern");
                        out_must_white(&attrib_token);
                        extern_proc = TRUE;

                        token_class = get_token(&attrib_token);
                    } else

                        if ((attrib_token.token_type == PUBLIC) ||
                                (attrib_token.token_type == REENTRANT)) {
                            do {
                                if (attrib_token.token_type == PUBLIC) {
                                    /* Ignore for now */
                                    token_class = get_token(&attrib_token);
                                } else

                                    if (attrib_token.token_type == REENTRANT) {
                                        /* Ignore for now */
                                        token_class = get_token(&attrib_token);
                                    } else
                                        break;
                            } while (token_class == RESERVED);
                        } else
                            break;
            }

            if (token_class != END_OF_LINE) {
                parse_error("';' expected");
                return;
            }

            if (interrupt_proc && !extern_proc)
                parse_warning("INTERRUPT procedure declared");

            /* Create declaration for procedure */
            get_element_ptr(&decl_ptr);
            get_var_ptr(&decl_ptr->name_list);
            /* Type = PROCEDURE */
            get_token_ptr(&decl_ptr->type);
            token_copy(&next_token, decl_ptr->type);
            /* Name = procedure name */
            get_token_ptr(&decl_ptr->name_list->name);
            token_copy(first_token, decl_ptr->name_list->name);
            /* Flag if parameter list */
            if (param_list)
                decl_ptr->initialization = DATA;
            /* Add it to context */
            add_to_context(decl_ptr);

            if (got_type) {
                /* Output procedure type */
                out_token_name(&type_token);
                out_must_white(&type_token);
            }

            /* Output procedure name */
            out_token_name(first_token);

            if (extern_proc) {
                out_str("()");

                if (param_list)
                    /* Parse parameter declarations */
                    parse_param_list(param_list, &decl_list,
                                     &extra_decl_list);

                out_char(';');
                /* Eat closing 'END [<proc name>];' */
                token_class = get_token(&token);
                if ((token_class != RESERVED) ||
                        (token.token_type != END)) {
                    parse_error("END expected");
                    return;
                }

                out_white_space(&token);
                token_class = get_token(&token);
                if (token_class == IDENTIFIER) {
                    token_class = get_token(&token);
                }

                if (token_class != END_OF_LINE) {
                    parse_error("';' expected");
                }

                return;
            } else

                if (param_list) {
                    out_token(&param_token);
                    /* Output parameter list */
                    param_ptr = param_list;
                    while (param_ptr) {
                        out_token(&param_ptr->param);
                        param_ptr = param_ptr->next_param;
                        if (param_ptr)
                            out_char(',');
                    }
                    out_char(')');

                    /* Parse parameter declarations */
                    parse_param_list(param_list, &decl_list,
                                     &extra_decl_list);

                    /* Output declarations */
                    if (decl_list) {
                        out_decl(decl_list);
                        /* Add declarations to context */
                        add_decl_to_context(decl_list);
                    }

                    out_str("\n{");		/* } for dumb vi */

                    if (extra_decl_list) {
                        out_decl(extra_decl_list);
                        /* Add declarations to context */
                        add_decl_to_context(extra_decl_list);
                    }

                    /* Discard declarations */
                    free_decl(decl_list);
                    free_decl(extra_decl_list);
                } else
                    /* No parameter list */
                    out_str("()\n{");	/* } for dumb vi */

            /* Create new context */
            new_context(PROCEDURE, first_token);
            /* Parse statements to END */
            parse_to_end();
            /* Pop procedure context */
            pop_context();
        } else {
            /*
             *	Label - add label name
             */
            out_token(first_token);
            /* Add colon */
            out_token(&token);

            /* Is this a defined label or a module? */
            if (find_symbol(first_token, &decl_ptr, &decl_id)) {
                if (decl_ptr->type->token_class == LABEL) {
                    /* Label - new context */
                    new_context(MODULE, first_token);
                    parse_statement(&next_token);
                    pop_context();
                } else {
                    parse_error("Illegal label name");
                    return;
                }
            } else
                parse_statement(&next_token);
        }
        return;
    }

    /* Assignment statement */
    text_ptr = tmp_text_ptr;
    token_copy(first_token, &token);
    token_class = parse_variable(&token, &decl_ptr, &decl_id);

    /* Check for multiple assignments */
    while (token_class == COMMA) {
        /* Print ' =' instead of ',' */
        out_str(" =");
        out_white_space(&token);
        /* Get identifier part of next assignment variable */
        token_class = get_token(&token);
        if (token_class != IDENTIFIER) {
            parse_error("Illegal assignment");
            return;
        }

        /* Parse remainder of variable (if any) */
        token_class = parse_variable(&token, &decl_ptr, &decl_id);
    }

    if (token_class == OPERATOR) {
        if (token.token_type != EQUAL) {
            parse_error("Illegal use of identifier");
            return;
        }

        out_token(&token);

        /* Check for POINTER assignment */
        if (decl_ptr->type->token_type == POINTER) {
            /* Yes - cast it */
            out_str(" (");
            out_str(TYPE_POINTER);
            out_str(" *) ");
        }

        if (parse_expression(&token) != END_OF_LINE)
            parse_error("';' expected");
        else
            out_token(&token);
        return;
    } else

        if (token_class != LABEL) {
            parse_error("Illegal use of identifier");
            return;
        }

}
Beispiel #13
0
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 *   LEXICAL SCANNER
 */
LOCAL te_dp_event
yylex(void)
{
    lastToken = DP_EV_INVALID;

scanAgain:
    /*
     *  Start the process of locating a token.
     *  We branch here after skipping over a comment
     *  or processing a directive (which may change our context).
     */
    if (IS_WHITESPACE_CHAR(*pCurCtx->pzScan))
        trim_whitespace();

    switch (*pCurCtx->pzScan) {
    case NUL:
        /*
         *  IF we are not inside an include context,
         *  THEN go finish.
         */
        if (pCurCtx->pCtx == NULL)
            goto lex_done;

        pop_context();
        goto scanAgain;

    case '#':
    {
        extern char * processDirective(char*);
        char * pz = processDirective(pCurCtx->pzScan+1);
        /*
         *  Ensure that the compiler doesn't try to save a copy of
         *  "pCurCtx" in a register.  It must be reloaded from memory.
         */
        pCurCtx->pzScan = pz;
        goto scanAgain;
    }

    case '{': SET_LIT_TKN(O_BRACE);   break;
    case '=': SET_LIT_TKN(EQ);        break;
    case '}': SET_LIT_TKN(C_BRACE);   break;
    case '[': SET_LIT_TKN(OPEN_BKT);  break;
    case ']': SET_LIT_TKN(CLOSE_BKT); break;
    case ';': SET_LIT_TKN(SEMI);      break;
    case ',': SET_LIT_TKN(COMMA);     break;

    case '\'':
    case '"':
    {
        char* pz = ao_string_cook(pCurCtx->pzScan, &(pCurCtx->lineNo));
        if (pz == NULL)
            goto NUL_error;

        pz_token = pCurCtx->pzScan;

        lastToken = DP_EV_STRING;
        pCurCtx->pzScan = pz;
        break;
    }

    case '<':
        switch (lex_here_string()) {
        case SUCCESS: break;
        case FAILURE: goto BrokenToken;
        case PROBLEM: return DP_EV_INVALID;
        }
        break;

    case '(':
        loadScheme();
        break;

    case '\\':
        if (strncmp(pCurCtx->pzScan+1, "'(", (size_t)2) == 0) {
            alist_to_autogen_def();
            goto scanAgain;
        }
        lex_escaped_char();
        break;

    case '`':
        switch (lex_backquote()) {
        case FAILURE: goto NUL_error;
        case PROBLEM: goto scanAgain;
        case SUCCESS: break;
        }
        break;

    case '/':
        switch (lex_comment()) {
        case SUCCESS: goto scanAgain;
        default: break;
        }
        /* FALLTHROUGH */ /* to Invalid input char */

    default:
    BrokenToken:
        pCurCtx->pzScan = assembleName(pCurCtx->pzScan, &lastToken);
        break;
    }   /* switch (*pCurCtx->pzScan) */

    return lastToken;

NUL_error:

    AG_ABEND(aprf(zErrMsg, pzProg, "unterminated quote in definition",
                  pCurCtx->pzCtxFname, pCurCtx->lineNo));
    return DP_EV_INVALID;

lex_done:
    /*
     *  First time through, return the DP_EV_END token.
     *  Second time through, we really finish.
     */
    if (pCurCtx->pzScan == zNil) {
        pCurCtx->pCtx = pDoneCtx;
        pDoneCtx      = pCurCtx;

        return DP_EV_INVALID;
    }

    pCurCtx->pzScan = (char*)zNil;
    return DP_EV_END;
}
Beispiel #14
0
void call_heart_beat()
{
    object_t *ob;
    heart_beat_t *curr_hb;
    error_context_t econ;

    current_interactive = 0;

    if ((num_hb_to_do = num_hb_objs)) {
        num_hb_calls++;
        heart_beat_index = 0;
        save_context(&econ);
        while (1) {
            ob = (curr_hb = &heart_beats[heart_beat_index])->ob;
            DEBUG_CHECK(!(ob->flags & O_HEART_BEAT),
                    "Heartbeat not set in object on heartbeat list!");
            /* is it time to do a heart beat ? */
            curr_hb->heart_beat_ticks--;

            if (ob->prog->heart_beat != 0) {
                if (curr_hb->heart_beat_ticks < 1) {
                    object_t *new_command_giver;
                    curr_hb->heart_beat_ticks = curr_hb->time_to_heart_beat;
                    current_heart_beat = ob;
                    new_command_giver = ob;
#ifndef NO_SHADOWS
                    while (new_command_giver->shadowing)
                        new_command_giver = new_command_giver->shadowing;
#endif
#ifndef NO_ADD_ACTION
                    if (!(new_command_giver->flags & O_ENABLE_COMMANDS))
                        new_command_giver = 0;
#endif
#ifdef PACKAGE_MUDLIB_STATS
                    add_heart_beats(&ob->stats, 1);
#endif
                    set_eval(max_cost);

                    if (SETJMP(econ.context)) {
                        restore_context(&econ);
                    } else {
                        save_command_giver(new_command_giver);
                        call_direct(ob, ob->prog->heart_beat - 1,
                                ORIGIN_DRIVER, 0);
                        pop_stack(); /* pop the return value */
                        restore_command_giver();
                    }

                    current_object = 0;
                }
            }
            if (++heart_beat_index == num_hb_to_do)
                break;
        }
        pop_context(&econ);
        if (heart_beat_index < num_hb_to_do)
            perc_hb_probes = 100 * (float) heart_beat_index / num_hb_to_do;
        else
            perc_hb_probes = 100.0;
        heart_beat_index = num_hb_to_do = 0;
    }
    current_prog = 0;
    current_heart_beat = 0;
    look_for_objects_to_swap();
#ifdef PACKAGE_MUDLIB_STATS
    mudlib_stats_decay();
#endif
}       /* call_heart_beat() */
Beispiel #15
0
/* Called from 'big_loop' in parser.c.  Return 1 if we find menu syntax to 
   process, otherwise return 0. */
int
handle_menu (ELEMENT **current_inout, char **line_inout)
{
  ELEMENT *current = *current_inout;
  char *line = *line_inout;
  int retval = 1;

  // 4052
  /* A "*" at the start of a line beginning a menu entry. */
  if (*line == '*'
      && current->type == ET_preformatted
      && (current->parent->type == ET_menu_comment
          || current->parent->type == ET_menu_entry_description)
      && current->contents.number > 0
      && last_contents_child(current)->type == ET_empty_line)
    {
      ELEMENT *star;

      debug ("MENU STAR");
      abort_empty_line (&current, 0);
      line++; /* Past the '*'. */

      star = new_element (ET_menu_star);
      text_append (&star->text, "*");
      add_to_element_contents (current, star);

      /* The ET_menu_star element won't appear in the final tree. */
    }
  // 4067
  /* A space after a "*" at the beginning of a line. */
  else if (strchr (whitespace_chars, *line)
           && current->contents.number > 0
           && last_contents_child(current)->type == ET_menu_star)
    {
      ELEMENT *menu_entry, *leading_text, *entry_name;
      int leading_spaces;

      debug ("MENU ENTRY (certainly)");
      leading_spaces = strspn (line, whitespace_chars);

      destroy_element (pop_element_from_contents (current));

      if (current->type == ET_preformatted
          && current->parent->type == ET_menu_comment)
        {
          ELEMENT *menu = current->parent->parent;

          /* Remove an empty ET_preformatted, and an empty ET_menu_comment. */
          if (current->contents.number == 0)
            {
              pop_element_from_contents (current->parent);
              if (current->parent->contents.number == 0)
                {
                  pop_element_from_contents (menu);
                  destroy_element (current->parent);
                }
              destroy_element (current);
            }

          current = menu;
        }
      else
        {
          /* current should be ET_preformatted,
             1st parent ET_menu_entry_description,
             2nd parent ET_menu_entry,
             3rd parent @menu. */
          current = current->parent->parent->parent;
        }

      if (pop_context () != ct_preformatted)
        abort (); // bug

      menu_entry = new_element (ET_menu_entry);
      leading_text = new_element (ET_menu_entry_leading_text);
      entry_name = new_element (ET_menu_entry_name);
      add_to_element_contents (current, menu_entry);
      add_to_element_args (menu_entry, leading_text);
      add_to_element_args (menu_entry, entry_name);
      current = entry_name;

      text_append (&leading_text->text, "*");
      text_append_n (&leading_text->text, line, leading_spaces);
      line += leading_spaces;
    }
  // 4116
  /* A "*" followed by anything other than a space. */
  else if (current->contents.number > 0
           && last_contents_child(current)->type == ET_menu_star)
    {
      debug ("ABORT MENU STAR");
      destroy_element (pop_element_from_contents (current));
    }
  // 4122
  /* After a separator in a menu. */
  else if (current->args.number > 0
           && last_args_child (current)->type == ET_menu_entry_separator)
    {
      ELEMENT *last_child;
      char *separator;

      last_child = last_args_child (current);
      separator = last_child->text.text;

      /* Separator is "::". */
      if (!strcmp (separator, ":") && *line == ':')
        {
          text_append (&last_child->text, ":");
          line++;
          /* Whitespace following the "::" is subsequently appended to
             the separator element. */
        }
      /* A "." not followed by a space.  Not a separator. */
      else if (!strcmp (separator, ".") && !strchr (whitespace_chars, *line))
        {
          pop_element_from_args (current);
          current = last_args_child (current);
          merge_text (current, last_child->text.text);
          destroy_element (last_child);
        }
      else if (strchr (whitespace_chars_except_newline, *line))
        {
          int n;

          n = strspn (line, whitespace_chars_except_newline);
          text_append_n (&last_child->text, line, n);
          line += n;
        }
      else if (!strncmp (separator, "::", 2))
        {
          ELEMENT *entry_name;

          debug ("MENU NODE no entry %s", separator);
          entry_name = args_child_by_index (current, -2);

          /* Change it from ET_menu_entry_name (i.e. the label). */
          entry_name->type = ET_menu_entry_node;
          current = enter_menu_entry_node (current);
        }
      /* End of the label.  Begin the element for the destination. */
      else if (*separator == ':')
        {
          ELEMENT *entry_node;

          debug ("MENU ENTRY %s", separator);
          entry_node = new_element (ET_menu_entry_node);
          add_to_element_args (current, entry_node);
          current = entry_node;
        }
      else
        {
          debug ("MENU NODE");
          current = enter_menu_entry_node (current);
        }
    }
  else
    retval = 0;

  *current_inout = current;
  *line_inout = line;

  return retval;
}
Beispiel #16
0
int main (int argc, char ** argv)
{
    time_t tm;
    int i, new_mudlib = 0, got_defaults = 0;
    char *p;
    char version_buf[80];
#if 0
    int dtablesize;
#endif
    error_context_t econ;

#ifdef PROTO_TZSET
    void tzset();
#endif

#ifdef INCL_LOCALE_H
    setlocale(LC_ALL, "C");
#endif

#if !defined(__SASC) && (defined(AMITCP) || defined(AS225))
    amiga_sockinit();
    atexit(amiga_sockexit);
#endif
#ifdef WRAPPEDMALLOC
    wrappedmalloc_init();
#endif        /* WRAPPEDMALLOC */
#ifdef DEBUGMALLOC
    MDinit();
#endif

#if (defined(PROFILING) && !defined(PROFILE_ON) && defined(HAS_MONCONTROL))
    moncontrol(0);
#endif
#ifdef USE_TZSET
    tzset();
#endif
    boot_time = get_current_time();

    const0.type = T_NUMBER;
    const0.u.number = 0;
    const1.type = T_NUMBER;
    const1.u.number = 1;

    /* const0u used by undefinedp() */
    const0u.type = T_NUMBER;
    const0u.subtype = T_UNDEFINED;
    const0u.u.number = 0;

    //fake_prog.program_size = 0; //0 anyway

    /*
     * Check that the definition of EXTRACT_UCHAR() is correct.
     */
    p = (char *) &i;
    *p = -10;
    if (EXTRACT_UCHAR(p) != 0x100 - 10) {
        fprintf(stderr, "Bad definition of EXTRACT_UCHAR() in interpret.h.\n");
        exit(-1);
    }

    /*
     * An added test: can we do EXTRACT_UCHAR(x++)?
     * (read_number, etc uses it)
     */
    p = (char *) &i;
    (void) EXTRACT_UCHAR(p++);
    if ((p - (char *) &i) != 1) {
        fprintf(stderr, "EXTRACT_UCHAR() in interpret.h evaluates its argument more than once.\n");
        exit(-1);
    }

    /*
     * Check the living hash table size
     */
    if (CFG_LIVING_HASH_SIZE != 4 && CFG_LIVING_HASH_SIZE != 16 &&
            CFG_LIVING_HASH_SIZE != 64 && CFG_LIVING_HASH_SIZE != 256 &&
            CFG_LIVING_HASH_SIZE != 1024 && CFG_LIVING_HASH_SIZE != 4096) {
        fprintf(stderr, "CFG_LIVING_HASH_SIZE in options.h must be one of 4, 16, 64, 256, 1024, 4096, ...\n");
        exit(-1);
    }

#ifdef RAND
    srand(get_current_time());
#else
#  ifdef DRAND48
    srand48(get_current_time());
#  else
#    ifdef RANDOM
    srandom(get_current_time());
#    else
    fprintf(stderr, "Warning: no random number generator specified!\n");
#    endif
#  endif
#endif
    current_time = get_current_time();
    /*
     * Initialize the microsecond clock.
     */
    init_usec_clock();

    /* read in the configuration file */

    got_defaults = 0;
    for (i = 1; (i < argc) && !got_defaults; i++) {
        if (argv[i][0] != '-') {
            set_defaults(argv[i]);
            got_defaults = 1;
        }
    }
    get_version(version_buf);
    if (!got_defaults) {
        fprintf(stderr, "%s for %s.\n", version_buf, ARCH);
        fprintf(stderr, "You must specify the configuration filename as an argument.\n");
        exit(-1);
    }

    printf("Initializing internal tables....\n");
    init_strings();   /* in stralloc.c */
    init_otable();    /* in otable.c */
    init_identifiers();   /* in lex.c */
    init_locals();              /* in compiler.c */

    /*
     * If our estimate is larger than FD_SETSIZE, then we need more file
     * descriptors than the operating system can handle.  This is a problem
     * that can be resolved by decreasing MAX_USERS, MAX_EFUN_SOCKS, or both.
     *
     * Unfortunately, since neither MAX_USERS or MAX_EFUN_SOCKS exist any more,
     * we have no clue how many we will need.  This code really should be
     * moved to places where ENFILE/EMFILE is returned.
     */
#if 0
    if (dtablesize > FD_SETSIZE) {
        fprintf(stderr, "Warning: File descriptor requirements exceed system capacity!\n");
        fprintf(stderr, "         Configuration exceeds system capacity by %d descriptor(s).\n",
                dtablesize - FD_SETSIZE);
    }
#ifdef HAS_SETDTABLESIZE
    /*
     * If the operating system supports setdtablesize() then we can request
     * the number of file descriptors we really need.  First check to see if
     * wee already have enough.  If so dont bother the OS. If not, attempt to
     * allocate the number we estimated above.  There are system imposed
     * limits on file descriptors, so we may not get as many as we asked for.
     * Check to make sure we get enough.
     */
    if (getdtablesize() < dtablesize)
        if (setdtablesize(dtablesize) < dtablesize) {
            fprintf(stderr, "Warning: Could not allocate enough file descriptors!\n");
            fprintf(stderr, "         setdtablesize() could not allocate %d descriptor(s).\n",
                    getdtablesize() - dtablesize);
        }
    /*
     * Just be polite and tell the administrator how many he has.
     */
    fprintf(stderr, "%d file descriptors were allocated, (%d were requested).\n",
            getdtablesize(), dtablesize);
#endif
#endif
    time_to_clean_up = TIME_TO_CLEAN_UP;
    max_cost = MAX_COST;
    reserved_size = RESERVED_SIZE;
    max_array_size = MAX_ARRAY_SIZE;
    if(max_array_size > 65535){
        fprintf(stderr, "Maximum array size can not exceed 65535");
        max_array_size = 65535;
    }
    max_buffer_size = MAX_BUFFER_SIZE;
    max_string_length = MAX_STRING_LENGTH;
    mud_lib = (char *) MUD_LIB;
    set_inc_list(INCLUDE_DIRS);
    if (reserved_size > 0)
        reserved_area = (char *) DMALLOC(reserved_size, TAG_RESERVED, "main.c: reserved_area");
    for (i = 0; i < sizeof consts / sizeof consts[0]; i++)
        consts[i] = exp(-i / 900.0);
    reset_machine(1);
    /*
     * The flags are parsed twice ! The first time, we only search for the -m
     * flag, which specifies another mudlib, and the D-flags, so that they
     * will be available when compiling master.c.
     */
    for (i = 1; i < argc; i++) {
        if (argv[i][0] != '-')
            continue;
        switch (argv[i][1]) {
            case 'D':
                if (argv[i][2]) {
                    lpc_predef_t *tmp = ALLOCATE(lpc_predef_t, TAG_PREDEFINES,
                            "predef");
                    tmp->flag = argv[i] + 2;
                    tmp->next = lpc_predefs;
                    lpc_predefs = tmp;
                    continue;
                }
                fprintf(stderr, "Illegal flag syntax: %s\n", argv[i]);
                exit(-1);
            case 'N':
                no_ip_demon++;
                continue;
#ifdef HAS_CONSOLE
            case 'C':
                has_console = 1;
                continue;
#endif
#ifdef YYDEBUG
            case 'y':
                yydebug = 1;
                continue;
#endif        /* YYDEBUG */
            case 'm':
                mud_lib = alloc_cstring(argv[i] + 2, "mudlib dir");
                if (chdir(mud_lib) == -1) {
                    fprintf(stderr, "Bad mudlib directory: %s\n", mud_lib);
                    exit(-1);
                }
                new_mudlib = 1;
                break;
        }
    }
    if (!new_mudlib && chdir(mud_lib) == -1) {
        fprintf(stderr, "Bad mudlib directory: %s\n", mud_lib);
        exit(-1);
    }
    time(&tm);
    debug_message("----------------------------------------------------------------------------\n%s (%s) starting up on %s - %s\n\n", MUD_NAME, version_buf, ARCH, ctime(&tm));

    add_predefines();
#ifdef WIN32
    _tzset();
#endif

#ifndef NO_IP_DEMON
    if (!no_ip_demon && ADDR_SERVER_IP)
        init_addr_server(ADDR_SERVER_IP, ADDR_SERVER_PORT);
#endif        /* NO_IP_DEMON */

    set_eval(max_cost);

    save_context(&econ);
    if (SETJMP(econ.context)) {
        debug_message("The simul_efun (%s) and master (%s) objects must be loadable.\n",
                SIMUL_EFUN, MASTER_FILE);
        exit(-1);
    } else {
        init_simul_efun(SIMUL_EFUN);
        init_master();
    }
    pop_context(&econ);

    for (i = 1; i < argc; i++) {
        if (argv[i][0] != '-') {
            continue;
        } else {
            /*
             * Look at flags. -m and -o has already been tested.
             */
            switch (argv[i][1]) {
                case 'D':
                case 'N':
                case 'm':
                case 'y':
                case 'C':
                    continue;
                case 'f':
                    save_context(&econ);
                    if (SETJMP(econ.context)) {
                        debug_message("Error while calling master::flag(\"%s\"), aborting ...\n", argv[i] + 2);
                        exit(-1);
                    }
                    push_constant_string(argv[i] + 2);
                    apply_master_ob(APPLY_FLAG, 1);
                    if (MudOS_is_being_shut_down) {
                        debug_message("Shutdown by master object.\n");
                        exit(0);
                    }
                    pop_context(&econ);
                    continue;
                case 'e':
                    e_flag++;
                    continue;
                case 'p':
                    external_port[0].port = atoi(argv[i] + 2);
                    continue;
                case 'd':
#ifdef DEBUG_MACRO
                    if (argv[i][2])
                        debug_level_set(&argv[i][2]);
                    else
                        debug_level |= DBG_d_flag;
#else
                    debug_message("Driver must be compiled with DEBUG_MACRO on to use -d.\n");
#endif
                    break;
                case 'c':
                    comp_flag++;
                    continue;
                case 't':
                    t_flag++;
                    continue;
                default:
                    debug_message("Unknown flag: %s\n", argv[i]);
                    exit(-1);
            }
        }
    }
    if (MudOS_is_being_shut_down)
        exit(1);
    if (*(DEFAULT_FAIL_MESSAGE)) {
        char buf[8192];

        strcpy(buf, DEFAULT_FAIL_MESSAGE);
        strcat(buf, "\n");
        default_fail_message = make_shared_string(buf);
    } else
        default_fail_message = "What?\n";
#ifdef PACKAGE_MUDLIB_STATS
    restore_stat_files();
#endif
    preload_objects(e_flag);
#ifdef SIGFPE
    signal(SIGFPE, sig_fpe);
#endif
#ifdef TRAP_CRASHES
#ifdef SIGUSR1
    signal(SIGUSR1, sig_usr1);
#endif
#ifdef SIGUSR2
    signal(SIGUSR2, sig_usr2);
#endif
    signal(SIGTERM, sig_term);
    signal(SIGINT, sig_int);
#ifndef DEBUG
#if defined(SIGABRT)
    signal(SIGABRT, sig_abrt);
#endif
#ifdef SIGIOT
    signal(SIGIOT, sig_iot);
#endif
#ifdef SIGHUP
    signal(SIGHUP, sig_hup);
#endif
#ifdef SIGBUS
    signal(SIGBUS, sig_bus);
#endif
    signal(SIGSEGV, sig_segv);
    signal(SIGILL, sig_ill);
#endif        /* DEBUG */
#endif
#ifndef WIN32
#ifdef USE_BSD_SIGNALS
    signal(SIGCHLD, sig_cld);
#else
    signal(SIGCLD, sig_cld);
#endif
#endif

#ifdef HAS_CONSOLE
    if(has_console >= 0)
        signal(SIGTTIN, sig_ttin);
    signal(SIGTTOU, SIG_IGN);
#endif

    backend();
    return 0;
}
Beispiel #17
0
//string pcre_replace_callback(string, string, function)
void f_pcre_replace_callback(void)
{
	int num_arg = st_num_arg, i;
	char *ret;
	pcre_t *run;
	svalue_t *arg;
	array_t *arr, *r;
	function_to_call_t ftc;

	arg = sp - num_arg + 1;

	run = CALLOCATE(1, pcre_t, TAG_TEMPORARY, "f_pcre_replace: run");
	run->ovector = NULL;
	run->ovecsize = 0;
	run->subject = arg->u.string;
	assign_svalue_no_free(&run->pattern, (arg + 1));

	run->s_length = SVALUE_STRLEN(arg);

	if(pcre_magic(run) < 0)
	{
		pcre_free_memory(run);
		error("PCRE compilation failed at offset %d: %s\n", run->erroffset,
				run->error);
	}


	if (run->rc < 0) /* No match. could do handling of matching errors if wanted */
	{
		pop_n_elems(num_arg-1);
		pcre_free_memory(run);
		return;
	}


	if (run->rc > (run->ovecsize/3-1))
	{
		pcre_free_memory(run);
		error("Too many substrings.\n");
	}

	arr = pcre_get_substrings(run);

	if(arg[2].type == T_FUNCTION || arg[2].type == T_STRING)
		process_efun_callback(2, &ftc, F_PCRE_REPLACE_CALLBACK);
	else {// 0
		pcre_free_memory(run);
		error("Illegal third argument (0) to pcre_replace_callback");
	}


	r = allocate_array(run->rc - 1); //can't use the empty variant in case we error below

	push_refed_array(r);
	push_refed_array(arr);
	error_context_t econ;

	if (!save_context(&econ)){
		pcre_free_memory(run);
		error("context stack full!\n");
	}
	if (SETJMP(econ.context)) {
		restore_context(&econ);
		/* condition was restored to where it was when we came in */
		pcre_free_memory(run);
		pop_context(&econ);
		error("error in callback!\n");
	}

	for (i = 0; i < run->rc - 1; i++)
	{
		svalue_t *v;
		push_svalue(arr->item + i);
		push_number(i);
		v = call_efun_callback(&ftc, 2);


		/* Mimic behaviour of map(string, function) when function pointer returns null,
         ie return the input.  */ 
		if (v && v->type == T_STRING && v->u.string != NULL)
			assign_svalue_no_free(&r->item[i], v);
		else
			assign_svalue_no_free(&r->item[i], &arr->item[i]);
	}
	pop_context(&econ);
	ret = pcre_get_replace(run, r);

	pop_n_elems(num_arg+2); //refed arrays
	push_malloced_string(ret);
	pcre_free_memory(run);
	return;
}
Beispiel #18
0
int main P2(int, argc, char **, argv)
{
    time_t tm;
    int i, new_mudlib = 0, got_defaults = 0;
    int no_ip_demon = 0;
    char *p;
    char version_buf[80];
#if 0
    int dtablesize;
#endif
    error_context_t econ;

#if !defined(LATTICE) && !defined(OLD_ULTRIX) && !defined(sequent) && \
    !defined(sgi)
    void tzset();
#endif
    struct lpc_predef_s predefs;

#if !defined(__SASC) && (defined(AMITCP) || defined(AS225))
    amiga_sockinit();
    atexit(amiga_sockexit);
#endif
#ifdef WRAPPEDMALLOC
    wrappedmalloc_init();
#endif				/* WRAPPEDMALLOC */
#ifdef DEBUGMALLOC
    MDinit();
#endif

#if (defined(PROFILING) && !defined(PROFILE_ON) && defined(HAS_MONCONTROL))
    moncontrol(0);
#endif
#if !defined(OLD_ULTRIX) && !defined(LATTICE) && !defined(sequent)
    tzset();
#endif
    boot_time = get_current_time();

    const0.type = T_NUMBER;
    const0.u.number = 0;
    const1.type = T_NUMBER;
    const1.u.number = 1;

    /* const0u used by undefinedp() */
    const0u.type = T_NUMBER;
    const0u.subtype = T_UNDEFINED;
    const0u.u.number = 0;

    /* const0n used by nullp() */
    const0n.type = T_NUMBER;
    const0n.subtype = T_NULLVALUE;
    const0n.u.number = 0;

    fake_prog.program_size = 0;

    /*
     * Check that the definition of EXTRACT_UCHAR() is correct.
     */
    p = (char *) &i;
    *p = -10;
    if (EXTRACT_UCHAR(p) != 0x100 - 10) {
	fprintf(stderr, "Bad definition of EXTRACT_UCHAR() in interpret.h.\n");
	exit(-1);
    }

    /*
     * An added test: can we do EXTRACT_UCHAR(x++)?
     * (read_number, etc uses it)
     */
    p = (char *) &i;
    (void) EXTRACT_UCHAR(p++);
    if ((p - (char *) &i) != 1) {
	fprintf(stderr, "EXTRACT_UCHAR() in interpret.h evaluates its argument more than once.\n");
	exit(-1);
    }

    /*
     * Check the living hash table size
     */
    if (CFG_LIVING_HASH_SIZE != 4 && CFG_LIVING_HASH_SIZE != 16 &&
	CFG_LIVING_HASH_SIZE != 64 && CFG_LIVING_HASH_SIZE != 256 &&
	CFG_LIVING_HASH_SIZE != 1024 && CFG_LIVING_HASH_SIZE != 4096) {
	fprintf(stderr, "CFG_LIVING_HASH_SIZE in options.h must be one of 4, 16, 64, 256, 1024, 4096, ...\n");
	exit(-1);
    }

#ifdef RAND
    srand(get_current_time());
#else
#  ifdef DRAND48
    srand48(get_current_time());
#  else
#    ifdef RANDOM
    srandom(get_current_time());
#    else
    fprintf(stderr, "Warning: no random number generator specified!\n");
#    endif
#  endif
#endif
    current_time = get_current_time();
    /*
     * Initialize the microsecond clock.
     */
    init_usec_clock();

    /* read in the configuration file */

    got_defaults = 0;
    for (i = 1; (i < argc) && !got_defaults; i++) {
	if (argv[i][0] != '-') {
	    set_defaults(argv[i]);
	    got_defaults = 1;
	}
    }
    if (!got_defaults) {
	fprintf(stderr, "You must specify the configuration filename as an argument.\n");
	exit(-1);
    }

    printf("Initializing internal tables....\n");
    init_strings();		/* in stralloc.c */
    init_otable();		/* in otable.c */
    init_identifiers();		/* in lex.c */
    init_locals();              /* in compiler.c */

/* disable this for now */
#if 0
    /*
     * We estimate that we will need MAX_USERS + MAX_EFUN_SOCKS + 10 file
     * descriptors if the maximum number of users were to log in and all LPC
     * sockets were in use.  This is a pretty close estimate.
     */
#ifndef LATTICE
    dtablesize = MAX_USERS + MAX_EFUN_SOCKS + 10;
#else
    /*
     * Amiga sockets separate from file descriptors
     */
    dtablesize = MAX_USERS + MAX_EFUN_SOCKS;
#endif

    /*
     * If our estimate is larger than FD_SETSIZE, then we need more file
     * descriptors than the operating system can handle.  This is a problem
     * that can be resolved by decreasing MAX_USERS, MAX_EFUN_SOCKS, or both.
     */
    if (dtablesize > FD_SETSIZE) {
	fprintf(stderr, "Warning: File descriptor requirements exceed system capacity!\n");
	fprintf(stderr, "         Configuration exceeds system capacity by %d descriptor(s).\n",
		dtablesize - FD_SETSIZE);
    }
#ifdef HAS_SETDTABLESIZE
    /*
     * If the operating system supports setdtablesize() then we can request
     * the number of file descriptors we really need.  First check to see if
     * wee already have enough.  If so dont bother the OS. If not, attempt to
     * allocate the number we estimated above.  There are system imposed
     * limits on file descriptors, so we may not get as many as we asked for.
     * Check to make sure we get enough.
     */
    if (getdtablesize() < dtablesize)
	if (setdtablesize(dtablesize) < dtablesize) {
	    fprintf(stderr, "Warning: Could not allocate enough file descriptors!\n");
	    fprintf(stderr, "         setdtablesize() could not allocate %d descriptor(s).\n",
		    getdtablesize() - dtablesize);
	}
    /*
     * Just be polite and tell the administrator how many he has.
     */
    fprintf(stderr, "%d file descriptors were allocated, (%d were requested).\n",
	    getdtablesize(), dtablesize);
#endif
#endif
    time_to_clean_up = TIME_TO_CLEAN_UP;
    time_to_swap = TIME_TO_SWAP;
    max_cost = MAX_COST;
    reserved_size = RESERVED_SIZE;
    max_array_size = MAX_ARRAY_SIZE;
    max_buffer_size = MAX_BUFFER_SIZE;
    max_string_length = MAX_STRING_LENGTH;
    master_file_name = (char *) MASTER_FILE;
    /* fix the filename */
    while (*master_file_name == '/') master_file_name++;
    p = master_file_name;
    while (*p++);
    if (p[-2]=='c' && p[-3]=='.')
	p[-3]=0;
    mud_lib = (char *) MUD_LIB;
    set_inc_list(INCLUDE_DIRS);
    if (reserved_size > 0)
	reserved_area = (char *) DMALLOC(reserved_size, TAG_RESERVED, "main.c: reserved_area");
    for (i = 0; i < sizeof consts / sizeof consts[0]; i++)
	consts[i] = exp(-i / 900.0);
    init_num_args();
    reset_machine(1);
    /*
     * The flags are parsed twice ! The first time, we only search for the -m
     * flag, which specifies another mudlib, and the D-flags, so that they
     * will be available when compiling master.c.
     */
    for (i = 1; i < argc; i++) {
	if (argv[i][0] != '-')
	    continue;
	switch (argv[i][1]) {
	case 'D':
	    if (argv[i][2]) {	/* Amylaar : allow flags to be passed down to
				 * the LPC preprocessor */
		struct lpc_predef_s *tmp;

		tmp = &predefs;
		tmp->flag = argv[i] + 2;
		tmp->next = lpc_predefs;
		lpc_predefs = tmp;
		continue;
	    }
	    fprintf(stderr, "Illegal flag syntax: %s\n", argv[i]);
	    exit(-1);
	case 'N':
	    no_ip_demon++;
	    continue;
#ifdef YYDEBUG
	case 'y':
	    yydebug = 1;
	    continue;
#endif				/* YYDEBUG */
	case 'm':
	    mud_lib = alloc_cstring(argv[i] + 2, "mudlib dir");
	    if (chdir(mud_lib) == -1) {
		fprintf(stderr, "Bad mudlib directory: %s\n", mud_lib);
		exit(-1);
	    }
	    new_mudlib = 1;
	    break;
	}
    }
    if (!new_mudlib && chdir(mud_lib) == -1) {
	fprintf(stderr, "Bad mudlib directory: %s\n", mud_lib);
	exit(-1);
    }
    get_version(version_buf);
    time(&tm);
    debug_message("----------------------------------------------------------------------------\n%s (%s) starting up on %s - %s\n\n", MUD_NAME, version_buf, ARCH, ctime(&tm));

#ifdef BINARIES
    init_binaries(argc, argv);
#endif
#ifdef LPC_TO_C
    init_lpc_to_c();
#endif
    add_predefines();

#ifndef NO_IP_DEMON
    if (!no_ip_demon && ADDR_SERVER_IP)
	init_addr_server(ADDR_SERVER_IP, ADDR_SERVER_PORT);
#endif				/* NO_IP_DEMON */

    eval_cost = max_cost;	/* needed for create() functions */

    save_context(&econ);
    if (SETJMP(econ.context)) {
	debug_message("The simul_efun (%s) and master (%s) objects must be loadable.\n", 
		      SIMUL_EFUN, MASTER_FILE);
	exit(-1);
    } else {
	init_simul_efun(SIMUL_EFUN);
	init_master(MASTER_FILE);
    }
    pop_context(&econ);

    for (i = 1; i < argc; i++) {
	if (argv[i][0] != '-') {
	    continue;
	} else {
	    /*
	     * Look at flags. -m and -o has already been tested.
	     */
	    switch (argv[i][1]) {
	    case 'D':
	    case 'N':
	    case 'm':
	    case 'y':
		continue;
	    case 'f':
		save_context(&econ);
		if (SETJMP(econ.context)) {
		    debug_message("Error while calling master::flag(\"%s\"), aborting ...", argv[i] + 2);
		    exit(-1);
		}
		push_constant_string(argv[i] + 2);
		(void) apply_master_ob(APPLY_FLAG, 1);
		if (MudOS_is_being_shut_down) {
		    debug_message("Shutdown by master object.\n");
		    exit(0);
		}
		pop_context(&econ);
		continue;
	    case 'e':
		e_flag++;
		continue;
	    case 'p':
		external_port[0].port = atoi(argv[i] + 2);
		continue;
            case 'd':
#ifdef DEBUG
                d_flag++;
#else
                debug_message("Driver must be compiled with DEBUG on to use -d.\n");
#endif
	    case 'c':
		comp_flag++;
		continue;
	    case 't':
		t_flag++;
		continue;
	    default:
		debug_message("Unknown flag: %s\n", argv[i]);
		exit(-1);
	    }
	}
    }
    if (MudOS_is_being_shut_down)
	exit(1);
    if (strlen(DEFAULT_FAIL_MESSAGE))
	default_fail_message = DEFAULT_FAIL_MESSAGE;
    else
	default_fail_message = "What?";
#ifdef PACKAGE_MUDLIB_STATS
    restore_stat_files();
#endif
#ifdef PACKAGE_SOCKETS
    init_sockets();		/* initialize efun sockets           */
#endif
    preload_objects(e_flag);
#ifdef SIGFPE
    signal(SIGFPE, sig_fpe);
#endif
#ifdef TRAP_CRASHES
#ifdef SIGUSR1
    signal(SIGUSR1, sig_usr1);
#endif
    signal(SIGTERM, sig_term);
    signal(SIGINT, sig_int);
#ifndef DEBUG
#if defined(SIGABRT) && !defined(LATTICE)
    signal(SIGABRT, sig_abrt);
#endif
#ifdef SIGIOT
    signal(SIGIOT, sig_iot);
#endif
#ifdef SIGHUP
    signal(SIGHUP, sig_hup);
#endif
#ifdef SIGBUS
    signal(SIGBUS, sig_bus);
#endif
#ifndef LATTICE
    signal(SIGSEGV, sig_segv);
    signal(SIGILL, sig_ill);
#endif
#endif				/* DEBUG */
#endif
    backend();
    return 0;
}
Beispiel #19
0
//--------------------------
//
// ( ) Copy block
// ( ) Copy block (repeated)
// ( ) Move block
// ( ) Clear block
// ( ) Flip block
// ( ) Mirror block
// ( ) Paint block
// ( ) Copy to...
// ( ) Copy to...
// ( ) Save as MZM
//
//    _OK_      _Cancel_
//
//--------------------------
boolean select_block_command(struct world *mzx_world, struct block_info *block,
 enum editor_mode mode)
{
  int dialog_result;
  struct element *elements[3];
  struct dialog di;
  int selection = 0;
  const char *radio_button_strings[] =
  {
    "Copy block",
    "Copy block (repeated)",
    "Move block",
    "Clear block",
    "Flip block",
    "Mirror block",
    "Paint block",
    NULL,
    NULL,
    "Save as MZM"
  };

  switch(mode)
  {
    default:
    case EDIT_BOARD:
      radio_button_strings[7] = "Copy to overlay";
      radio_button_strings[8] = "Copy to vlayer";
      break;

    case EDIT_OVERLAY:
      radio_button_strings[7] = "Copy to board";
      radio_button_strings[8] = "Copy to vlayer";
      break;

    case EDIT_VLAYER:
      radio_button_strings[7] = "Copy to board";
      radio_button_strings[8] = "Copy to overlay";
      break;
  }

  // Prevent previous keys from carrying through.
  force_release_all_keys();

  set_context(CTX_BLOCK_CMD);
  elements[0] = construct_radio_button(2, 2, radio_button_strings,
   10, 21, &selection);
  elements[1] = construct_button(5, 13, "OK", 0);
  elements[2] = construct_button(15, 13, "Cancel", -1);

  construct_dialog(&di, "Choose block command", 26, 3, 29, 16,
   elements, 3, 0);

  dialog_result = run_dialog(mzx_world, &di);
  pop_context();

  destruct_dialog(&di);

  // Prevent UI keys from carrying through.
  force_release_all_keys();

  if(dialog_result)
  {
    block->selected = false;
    return false;
  }

  // Translate selection to a real block command.
  block->selected = true;
  block->command = BLOCK_CMD_NONE;
  block->src_mode = mode;
  block->dest_mode = mode;

  switch(selection)
  {
    case 0:
      block->command = BLOCK_CMD_COPY;
      break;

    case 1:
      block->command = BLOCK_CMD_COPY_REPEATED;
      break;

    case 2:
      block->command = BLOCK_CMD_MOVE;
      break;

    case 3:
      block->command = BLOCK_CMD_CLEAR;
      break;

    case 4:
      block->command = BLOCK_CMD_FLIP;
      break;

    case 5:
      block->command = BLOCK_CMD_MIRROR;
      break;

    case 6:
      block->command = BLOCK_CMD_PAINT;
      break;

    case 7:
    {
      block->command = BLOCK_CMD_COPY;
      switch(mode)
      {
        case EDIT_BOARD:
          block->dest_mode = EDIT_OVERLAY;
          break;

        case EDIT_OVERLAY:
        case EDIT_VLAYER:
          block->dest_mode = EDIT_BOARD;
          break;
      }
      break;
    }

    case 8:
    {
      block->command = BLOCK_CMD_COPY;
      switch(mode)
      {
        case EDIT_BOARD:
        case EDIT_OVERLAY:
          block->dest_mode = EDIT_VLAYER;
          break;

        case EDIT_VLAYER:
          block->dest_mode = EDIT_OVERLAY;
          break;
      }
      break;
    }

    case 9:
      block->command = BLOCK_CMD_SAVE_MZM;
      break;
  }
  return true;
}
Beispiel #20
0
bool solver_enumerationt::iterate(invariantt &_inv)
{
  tpolyhedra_domaint::templ_valuet &inv = 
    static_cast<tpolyhedra_domaint::templ_valuet &>(_inv);

  bool improved = false;

  literalt activation_literal = new_context();

  exprt inv_expr = tpolyhedra_domain.to_pre_constraints(inv);
  debug() << "pre-inv: " << from_expr(ns,"",inv_expr) << eom;

#ifndef DEBUG_FORMULA
  solver << or_exprt(inv_expr, literal_exprt(activation_literal));
#else
  debug() << "literal " << activation_literal << eom;
  literalt l = solver.convert(or_exprt(inv_expr, literal_exprt(activation_literal)));
  if(!l.is_constant()) 
  {
    debug() << "literal " << l << ": " << from_expr(ns,"",or_exprt(inv_expr, literal_exprt(activation_literal))) <<eom;
    formula.push_back(l);
  }
#endif

  exprt::operandst strategy_cond_exprs;
  tpolyhedra_domain.make_not_post_constraints(inv, 
    strategy_cond_exprs, strategy_value_exprs); 

#ifndef DEBUG_FORMULA
  solver << or_exprt(disjunction(strategy_cond_exprs),
		     literal_exprt(activation_literal));
#else

  exprt expr_act=
    or_exprt(disjunction(strategy_cond_exprs),
	       literal_exprt(activation_literal));

  l = solver.convert(expr_act);
  if(!l.is_constant()) 
  {
    debug() << "literal " << l << ": " << 
      from_expr(ns,"", expr_act) <<eom;
    formula.push_back(l);
  }
#endif

  debug() << "solve(): ";

#ifdef DEBUG_FORMULA
  bvt whole_formula = formula;
  whole_formula.insert(whole_formula.end(),activation_literals.begin(),activation_literals.end());
  solver.set_assumptions(whole_formula);
#endif

  if(solve() == decision_proceduret::D_SATISFIABLE) 
  { 
    debug() << "SAT" << eom;
      
    #if 0
    for(unsigned i=0; i<whole_formula.size(); i++) 
    {
      debug() << "literal: " << whole_formula[i] << " " << 
        solver.l_get(whole_formula[i]) << eom;
    }
          
    for(unsigned i=0; i<tpolyhedra_domain.template_size(); i++) 
    {
      exprt c = tpolyhedra_domain.get_row_constraint(i,inv[i]);
      debug() << "cond: " << from_expr(ns, "", c) << " " << 
          from_expr(ns, "", solver.get(c)) << eom;
      debug() << "guards: " << from_expr(ns, "", tpolyhedra_domain.templ.pre_guards[i]) << 
          " " << from_expr(ns, "", solver.get(tpolyhedra_domain.templ.pre_guards[i])) << eom;
      debug() << "guards: " << from_expr(ns, "", tpolyhedra_domain.templ.post_guards[i]) << " " 
          << from_expr(ns, "", solver.get(tpolyhedra_domain.templ.post_guards[i])) << eom; 	     	     }    
          
    for(replace_mapt::const_iterator
          it=renaming_map.begin();
          it!=renaming_map.end();    
          ++it)
          
    {
      debug() << "replace_map (1st): " << from_expr(ns, "", it->first) << " " << 
          from_expr(ns, "", solver.get(it->first)) << eom;
      debug() << "replace_map (2nd): " << from_expr(ns, "", it->second) << " " << 
          from_expr(ns, "", solver.get(it->second)) << eom;
    }
                  
    #endif
      
    tpolyhedra_domaint::templ_valuet new_value;
    tpolyhedra_domain.initialize(new_value);
    for(unsigned row=0;row<tpolyhedra_domain.template_size(); row++)
    {
      tpolyhedra_domaint::row_valuet v = 
	simplify_const(solver.get(strategy_value_exprs[row]));
      tpolyhedra_domain.set_row_value(row,v,new_value);

      debug() << "value: " << from_expr(ns,"",v) << eom;
    }
    tpolyhedra_domain.join(inv,new_value);

    improved = true;
  }
  else 
  {
    debug() << "UNSAT" << eom;

#ifdef DEBUG_FORMULA
    for(unsigned i=0; i<whole_formula.size(); i++) 
    {
      if(solver.is_in_conflict(whole_formula[i]))
        debug() << "is_in_conflict: " << whole_formula[i] << eom;
      else
        debug() << "not_in_conflict: " << whole_formula[i] << eom;
     }
#endif    
  }
  pop_context();

  return improved;
}
Beispiel #21
0
static void call_heart_beat()
{
    object_t *ob;
    heart_beat_t *curr_hb;
    error_context_t econ;

#ifdef WIN32
    static long Win32Thread = -1;
#endif

    heart_beat_flag = 0;
#ifdef SIGALRM
    signal(SIGALRM, sigalrm_handler);
#endif

#ifdef HAS_UALARM
    ualarm(HEARTBEAT_INTERVAL, 0);
#else
#  ifdef WIN32
    if (Win32Thread == -1) Win32Thread = _beginthread(
/* This shouldn't be necessary b/c alarm_loop is already declared as this.
   Microsoft lossage? -Beek */
	(void (__cdecl *)(void *))
	alarm_loop, 256, 0);
#  else
    alarm(SYSV_HEARTBEAT_INTERVAL);	/* defined in config.h */
#  endif
#endif

    current_interactive = 0;

    if ((num_hb_to_do = num_hb_objs)) {
	num_hb_calls++;
	heart_beat_index = 0;
	save_context(&econ);
	while (!heart_beat_flag) {
	    ob = (curr_hb = &heart_beats[heart_beat_index])->ob;
	    DEBUG_CHECK(!(ob->flags & O_HEART_BEAT),
			"Heartbeat not set in object on heartbeat list!");
	    DEBUG_CHECK(ob->flags & O_SWAPPED,
			"Heartbeat in swapped object.\n");
	    /* is it time to do a heart beat ? */
	    curr_hb->heart_beat_ticks--;

	    if (ob->prog->heart_beat != 0) {
		if (curr_hb->heart_beat_ticks < 1) {
		    object_t *new_command_giver;
		    curr_hb->heart_beat_ticks = curr_hb->time_to_heart_beat;
		    current_heart_beat = ob;
		    new_command_giver = ob;
#ifndef NO_SHADOWS
		    while (new_command_giver->shadowing)
			new_command_giver = new_command_giver->shadowing;
#endif
#ifndef NO_ADD_ACTION
		    if (!(new_command_giver->flags & O_ENABLE_COMMANDS))
			new_command_giver = 0;
#endif
#ifdef PACKAGE_MUDLIB_STATS
		    add_heart_beats(&ob->stats, 1);
#endif
		    eval_cost = max_cost;

		    if (SETJMP(econ.context)) {
			restore_context(&econ);
		    } else {
			save_command_giver(new_command_giver);
			call_direct(ob, ob->prog->heart_beat - 1,
				    ORIGIN_DRIVER, 0);
			pop_stack(); /* pop the return value */
			restore_command_giver();
		    }

		    current_object = 0;
		}
	    }
	    if (++heart_beat_index == num_hb_to_do)
		break;
	}
	pop_context(&econ);
	if (heart_beat_index < num_hb_to_do)
	    perc_hb_probes = 100 * (float) heart_beat_index / num_hb_to_do;
	else
	    perc_hb_probes = 100.0;
	heart_beat_index = num_hb_to_do = 0;
    }
    current_prog = 0;
    current_heart_beat = 0;
    look_for_objects_to_swap();
    call_out();
#ifdef PACKAGE_MUDLIB_STATS
    mudlib_stats_decay();
#endif
}				/* call_heart_beat() */
Beispiel #22
0
static void __check_for_updates(struct world *mzx_world, struct config_info *conf)
{
  int cur_host;
  char *update_host;
  bool try_next_host = true;
  bool ret = false;

  set_context(CTX_UPDATER);

  if(conf->update_host_count < 1)
  {
    error("No updater hosts defined! Aborting.", 1, 8, 0);
    goto err_out;
  }

  if(!swivel_current_dir(true))
    goto err_out;

  for(cur_host = 0; (cur_host < conf->update_host_count) && try_next_host; cur_host++)
  {
    char **list_entries, buffer[LINE_BUF_LEN], *url_base, *value;
    struct manifest_entry *removed, *replaced, *added, *e;
    int i = 0, entries = 0, buf_len, result;
    char update_branch[LINE_BUF_LEN];
    const char *version = VERSION;
    int list_entry_width = 0;
    enum host_status status;
    struct host *h = NULL;
    unsigned int retries;
    FILE *f;

    // Acid test: Can we write to this directory?
    f = fopen_unsafe(UPDATES_TXT, "w+b");
    if(!f)
    {
      error("Failed to create \"" UPDATES_TXT "\". Check permissions.", 1, 8, 0);
      goto err_chdir;
    }

    update_host = conf->update_hosts[cur_host];

    if(!reissue_connection(conf, &h, update_host))
      goto err_host_destroy;

    for(retries = 0; retries < MAX_RETRIES; retries++)
    {
      // Grab the file containing the names of the current Stable and Unstable
      status = host_recv_file(h, "/" UPDATES_TXT, f, "text/plain");
      rewind(f);

      if(status == HOST_SUCCESS)
        break;

      if(!reissue_connection(conf, &h, update_host))
        goto err_host_destroy;
    }

    if(retries == MAX_RETRIES)
    {
      snprintf(widget_buf, WIDGET_BUF_LEN, "Failed to download \""
       UPDATES_TXT "\" (err=%d).\n", status);
      widget_buf[WIDGET_BUF_LEN - 1] = 0;
      error(widget_buf, 1, 8, 0);
      goto err_host_destroy;
    }

    snprintf(update_branch, LINE_BUF_LEN, "Current-%s",
     conf->update_branch_pin);

    // Walk this list (of two, hopefully)
    while(true)
    {
      char *m = buffer, *key;
      value = NULL;

      // Grab a single line from the manifest
      if(!fgets(buffer, LINE_BUF_LEN, f))
        break;

      key = strsep(&m, ":\n");
      if(!key)
        break;

      value = strsep(&m, ":\n");
      if(!value)
        break;

      if(strcmp(key, update_branch) == 0)
        break;
    }

    fclose(f);
    unlink(UPDATES_TXT);

    /* There was no "Current-XXX: Version" found; we cannot proceed with the
     * update because we cannot compute an update URL below.
     */
    if(!value)
    {
      error("Failed to identify applicable update version.", 1, 8, 0);
      goto err_host_destroy;
    }

    /* There's likely to be a space prepended to the version number.
     * Skip it here.
     */
    if(value[0] == ' ')
      value++;

    /* We found the latest update version, but we should check to see if that
     * matches the version we're already using. The user may choose to receive
     * "stability" updates for their current major version, or upgrade to the
     * newest one.
     */
    if(strcmp(value, version) != 0)
    {
      struct element *elements[6];
      struct dialog di;

      buf_len = snprintf(widget_buf, WIDGET_BUF_LEN,
       "A new major version is available (%s)", value);
      widget_buf[WIDGET_BUF_LEN - 1] = 0;

      elements[0] = construct_label((55 - buf_len) >> 1, 2, widget_buf);

      elements[1] = construct_label(2, 4,
       "You can continue to receive updates for the version\n"
       "installed (if available), or you can upgrade to the\n"
       "newest major version (recommended).");

      elements[2] = construct_label(2, 8,
       "If you do not upgrade, this question will be asked\n"
       "again the next time you run the updater.\n");

      elements[3] = construct_button(9, 11, "Upgrade", 0);
      elements[4] = construct_button(21, 11, "Update Old", 1);
      elements[5] = construct_button(36, 11, "Cancel", 2);

      construct_dialog(&di, "New Major Version", 11, 6, 55, 14, elements, 6, 3);
      result = run_dialog(mzx_world, &di);
      destruct_dialog(&di);

      // User pressed Escape, abort all updates
      if(result < 0 || result == 2)
      {
        try_next_host = false;
        goto err_host_destroy;
      }

      // User pressed Upgrade, use new major
      if(result == 0)
        version = value;
    }

    /* We can now compute a unique URL base for the updater. This will
     * be composed of a user-selected version and a static platform-archicture
     * name.
     */
    url_base = cmalloc(LINE_BUF_LEN);
    snprintf(url_base, LINE_BUF_LEN, "/%s/" PLATFORM, version);
    debug("Update base URL: %s\n", url_base);

    /* The call to manifest_get_updates() destroys any existing manifest
     * file in this directory. Since we still allow user to abort after
     * this call, and downloading the updates may fail, we copy the
     * old manifest to a backup location and optionally restore it later.
     */
    if(!backup_original_manifest())
    {
      error("Failed to back up manifest. Check permissions.", 1, 8, 0);
      try_next_host = false;
      goto err_free_url_base;
    }

    for(retries = 0; retries < MAX_RETRIES; retries++)
    {
      bool m_ret;

      m_hide();

      draw_window_box(3, 11, 76, 13, DI_MAIN, DI_DARK, DI_CORNER, 1, 1);
      write_string("Computing manifest deltas (added, replaced, deleted)..",
       13, 12, DI_TEXT, 0);
      update_screen();

      m_ret = manifest_get_updates(h, url_base, &removed, &replaced, &added);

      clear_screen(32, 7);
      m_show();
      update_screen();

      if(m_ret)
        break;

      if(!reissue_connection(conf, &h, update_host))
        goto err_roll_back_manifest;
    }

    if(retries == MAX_RETRIES)
    {
      error("Failed to compute update manifests", 1, 8, 0);
      goto err_roll_back_manifest;
    }

    // At this point, we have a successful manifest, so we won't need another host
    try_next_host = false;

    if(!removed && !replaced && !added)
    {
      struct element *elements[3];
      struct dialog di;

      elements[0] = construct_label(2, 2, "This client is already current.");
      elements[1] = construct_button(7, 4, "OK", 0);
      elements[2] = construct_button(13, 4, "Try next host", 1);

      construct_dialog(&di, "No Updates", 22, 9, 35, 6, elements, 3, 1);
      result = run_dialog(mzx_world, &di);
      destruct_dialog(&di);

      if((result == 1) && (cur_host < conf->update_host_count))
        try_next_host = true;

      goto err_free_update_manifests;
    }

    for(e = removed; e; e = e->next, entries++)
      list_entry_width = MAX(list_entry_width, 2 + (int)strlen(e->name)+1+1);
    for(e = replaced; e; e = e->next, entries++)
      list_entry_width = MAX(list_entry_width, 2 + (int)strlen(e->name)+1+1);
    for(e = added; e; e = e->next, entries++)
      list_entry_width = MAX(list_entry_width, 2 + (int)strlen(e->name)+1+1);

    // We don't want the listbox to be too wide
    list_entry_width = MIN(list_entry_width, 60);

    list_entries = cmalloc(entries * sizeof(char *));

    for(e = removed; e; e = e->next, i++)
    {
      list_entries[i] = cmalloc(list_entry_width);
      snprintf(list_entries[i], list_entry_width, "- %s", e->name);
      list_entries[i][list_entry_width - 1] = 0;
    }

    for(e = replaced; e; e = e->next, i++)
    {
      list_entries[i] = cmalloc(list_entry_width);
      snprintf(list_entries[i], list_entry_width, "* %s", e->name);
      list_entries[i][list_entry_width - 1] = 0;
    }

    for(e = added; e; e = e->next, i++)
    {
      list_entries[i] = cmalloc(list_entry_width);
      snprintf(list_entries[i], list_entry_width, "+ %s", e->name);
      list_entries[i][list_entry_width - 1] = 0;
    }

    draw_window_box(19, 1, 59, 4, DI_MAIN, DI_DARK, DI_CORNER, 1, 1);
    write_string(" Task Summary ", 33, 1, DI_TITLE, 0);
    write_string("ESC   - Cancel   [+] Add   [-] Delete", 21, 2, DI_TEXT, 0);
    write_string("ENTER - Proceed  [*] Replace  ", 21, 3, DI_TEXT, 0);

    result = list_menu((const char **)list_entries, list_entry_width,
     NULL, 0, entries, ((80 - (list_entry_width + 9)) >> 1) + 1, 4);

    for(i = 0; i < entries; i++)
      free(list_entries[i]);
    free(list_entries);

    clear_screen(32, 7);
    update_screen();

    if(result < 0)
      goto err_free_update_manifests;

    /* Defer deletions until we restart; any of these files may still be
     * in use by this (old) process. Reduce the number of entries by the
     * number of removed items for the progress meter below.
     */
    for(e = removed; e; e = e->next, entries--)
      delete_hook(e->name);

    /* Since the operations for adding and replacing a file are identical,
     * we modify the replaced list and tack on the added list to the end.
     *
     * Either list may be NULL; in the case that `replaced' is NULL, simply
     * re-assign the `added' pointer. `added' being NULL has no effect.
     *
     * Later, we need only free the replaced list (see below).
     */
    if(replaced)
    {
      for(e = replaced; e->next; e = e->next)
        ;
      e->next = added;
    }
    else
      replaced = added;

    cancel_update = false;
    host_set_callbacks(h, NULL, recv_cb, cancel_cb);

    i = 1;
    for(e = replaced; e; e = e->next, i++)
    {
      for(retries = 0; retries < MAX_RETRIES; retries++)
      {
        char name[72];
        bool m_ret;

        if(!check_create_basedir(e->name))
          goto err_free_delete_list;

        final_size = (long)e->size;

        m_hide();
        snprintf(name, 72, "%s (%ldb) [%u/%u]", e->name, final_size, i, entries);
        meter(name, 0, final_size);
        update_screen();

        m_ret = manifest_entry_download_replace(h, url_base, e, delete_hook);

        clear_screen(32, 7);
        m_show();
        update_screen();

        if(m_ret)
          break;

        if(cancel_update)
        {
          error("Download was cancelled; update aborted.", 1, 8, 0);
          goto err_free_delete_list;
        }

        if(!reissue_connection(conf, &h, update_host))
          goto err_free_delete_list;
        host_set_callbacks(h, NULL, recv_cb, cancel_cb);
      }

      if(retries == MAX_RETRIES)
      {
        snprintf(widget_buf, WIDGET_BUF_LEN,
         "Failed to download \"%s\" (after %d attempts).", e->name, retries);
        widget_buf[WIDGET_BUF_LEN - 1] = 0;
        error(widget_buf, 1, 8, 0);
        goto err_free_delete_list;
      }
    }

    if(delete_list)
    {
      f = fopen_unsafe(DELETE_TXT, "wb");
      if(!f)
      {
        error("Failed to create \"" DELETE_TXT "\". Check permissions.", 1, 8, 0);
        goto err_free_delete_list;
      }

      for(e = delete_list; e; e = e->next)
      {
        fprintf(f, "%08x%08x%08x%08x%08x%08x%08x%08x %lu %s\n",
         e->sha256[0], e->sha256[1], e->sha256[2], e->sha256[3],
         e->sha256[4], e->sha256[5], e->sha256[6], e->sha256[7],
         e->size, e->name);
      }

      fclose(f);
    }

    try_next_host = false;
    ret = true;
err_free_delete_list:
    manifest_list_free(&delete_list);
    delete_list = delete_p = NULL;
err_free_update_manifests:
    manifest_list_free(&removed);
    manifest_list_free(&replaced);
err_roll_back_manifest:
    restore_original_manifest(ret);
err_free_url_base:
    free(url_base);
err_host_destroy:
    host_destroy(h);

    pop_context();
  } //end host for loop

err_chdir:
  swivel_current_dir_back(true);
err_out:

  /* At this point we found updates and we successfully updated
   * to them. Reload the program with the original argv.
   */
  if(ret)
  {
    const void *argv = process_argv;
    struct element *elements[2];
    struct dialog di;

    elements[0] = construct_label(2, 2,
     "This client will now attempt to restart itself.");
    elements[1] = construct_button(23, 4, "OK", 0);

    construct_dialog(&di, "Update Successful", 14, 9, 51, 6, elements, 2, 1);
    run_dialog(mzx_world, &di);
    destruct_dialog(&di);

    execv(process_argv[0], argv);
    perror("execv");

    error("Attempt to invoke self failed!", 1, 8, 0);
    return;
  }
}
Beispiel #23
0
HRON_PRELUDE static void scanner_statetransition (
        secret__scanner_state *     ss
    ,   scanner_state               from
    ,   scanner_state               to
    ,   scanner_state_transition    sst
    )
{
    HRON_UNUSED(from);
    assert(ss);
    switch (sst)
    {
    case SST_From_Indention__To_Indention:
        ++ss->parser_state.indention;
        break;
    }

    switch (to)
    {
        case SS_PreProcessorTag:
        case SS_EmptyTag:
        case SS_CommentTag:
        case SS_ValueTag:
        case SS_ValueLine:
        case SS_ObjectTag:
            ss->result = SR_Done;
            break;
        case SS_EndOfValueLine:
            ss->parser_state.value__line(ss->parser_state.payload, ss->current_line, ss->parser_state.expected_indent, ss->current_line_end);
            break;
        case SS_EndOfPreProcessorTag:
            ss->parser_state.preprocessor(ss->parser_state.payload, ss->current_line, ss->parser_state.indention + 1, ss->current_line_end);
            break;
        case SS_EndOfCommentTag:
            ss->parser_state.comment(ss->parser_state.payload, ss->current_line, ss->parser_state.indention + 1, ss->current_line_end);
            break;
        case SS_EndOfEmptyTag:
            if (ss->parser_state.is_building_value)
            {
                ss->parser_state.value__line(ss->parser_state.payload, empty, 0, 0);
            }
            else
            {
                ss->parser_state.empty(ss->parser_state.payload, ss->current_line, 0, ss->current_line_end);
            }
            break;
        case SS_EndOfObjectTag:
            pop_context(ss);
            ss->parser_state.object__begin(ss->parser_state.payload, ss->current_line, ss->parser_state.indention + 1, ss->current_line_end);
            ss->parser_state.expected_indent = ss->parser_state.indention + 1;
            break;
        case SS_EndOfValueTag:
            pop_context(ss);
            ss->parser_state.is_building_value = 1;
            ss->parser_state.value__begin(ss->parser_state.payload, ss->current_line, ss->parser_state.indention + 1, ss->current_line_end);
            ss->parser_state.expected_indent = ss->parser_state.indention + 1;
            break;
        case SS_Error:
            ss->result = SS_Error;
            ss->parser_state.error(ss->parser_state.payload, ss->parser_state.line_no, ss->current_line, ss->current_line_begin, ss->current_line_end, "General");
            break;
        case SS_WrongTagError:
            ss->result = SS_Error;
            ss->parser_state.error(ss->parser_state.payload, ss->parser_state.line_no, ss->current_line, ss->current_line_begin, ss->current_line_end, "WrongTag");
            break;
        case SS_NonEmptyTagError:
            ss->result = SS_Error;
            ss->parser_state.error(ss->parser_state.payload, ss->parser_state.line_no, ss->current_line, ss->current_line_begin, ss->current_line_end, "NonEmptyTag");
            break;
    }


}
Beispiel #24
0
int error(const char *string, unsigned int type, unsigned int options,
 unsigned int code)
{
  const char *type_name;
  int t1 = 9, ret = 0;
  char temp[5];
  int x;

  // Find the name of this error type.
  if(type >= sizeof(error_type_names) / sizeof(*error_type_names))
    type = 0;

  type_name = error_type_names[type];

  // If graphics couldn't initialize, print the error to stderr and abort.
  if(!has_video_initialized())
  {
    fprintf(stderr, "%s%s\n", type_name, string);
    exit(-1);
  }

  // Window
  set_context(code >> 8);
  m_hide();
  save_screen();

  dialog_fadein();

  draw_window_box(1, 10, 78, 14, 76, 64, 72, 1, 1);
  // Add title and error name
  x = 40 - (int)strlen(type_name)/2;
  write_string(type_name, x, 10, 78, 0);

  write_string(string, 40 - ((Uint32)strlen(string) / 2), 11, 79, 0);

  // Add options
  write_string("Press", 4, 13, 78, 0);

  if(options & ERROR_OPT_FAIL)
  {
    write_string(", F for Fail", t1, 13, 78, 0);
    t1 += 12;
  }
  if(options & ERROR_OPT_RETRY)
  {
    write_string(", R to Retry", t1, 13, 78, 0);
    t1 += 12;
  }
  if(options & ERROR_OPT_EXIT)
  {
    write_string(", E to Exit", t1, 13, 78, 0);
    t1 += 11;
  }
  if(options & ERROR_OPT_OK)
  {
    write_string(", O for OK", t1, 13, 78, 0);
    t1 += 10;
  }

  draw_char('.', 78, t1, 13);
  draw_char(':', 78, 9, 13);

  // Add code if not 0

  if(code != 0)
  {
    write_string(" Debug code:0000h ", 30, 14, 64, 0);
    sprintf(temp, "%x", code);
    write_string(temp, 46 - (Uint32)strlen(temp), 14, 64, 0);
  }

  update_screen();

  // Get key
  do
  {
    wait_event();
    t1 = get_key(keycode_internal);

    //Process
    switch(t1)
    {
      case IKEY_f:
        fail:
        if(!(options & ERROR_OPT_FAIL)) break;
        ret = ERROR_OPT_FAIL;
        break;
      case IKEY_r:
        retry:
        if(!(options & ERROR_OPT_RETRY)) break;
        ret = ERROR_OPT_RETRY;
        break;
      case IKEY_e:
        exit:
        if(!(options & ERROR_OPT_EXIT)) break;
        ret = ERROR_OPT_EXIT;
        break;
      case IKEY_o:
        ok:
        if(!(options & ERROR_OPT_OK)) break;
        ret = ERROR_OPT_OK;
        break;
      case IKEY_h:
        if(!(options & ERROR_OPT_HELP)) break;
        // Call help
        break;
      case IKEY_ESCAPE:
        // Escape. Order of options this applies to-
        // Fail, Ok, Retry, Exit.
        if(options & ERROR_OPT_FAIL ) goto fail;
        if(options & ERROR_OPT_OK   ) goto ok;
        if(options & ERROR_OPT_RETRY) goto retry;
        goto exit;
      case IKEY_RETURN:
        // Enter. Order of options this applies to-
        // OK, Retry, Fail, Exit.
        if(options & ERROR_OPT_OK   ) goto ok;
        if(options & ERROR_OPT_RETRY) goto retry;
        if(options & ERROR_OPT_FAIL ) goto fail;
        goto exit;
    }
  } while(ret == 0);

  pop_context();

  // Restore screen and exit appropriately
  dialog_fadeout();

  restore_screen();
  m_show();
  if(ret == ERROR_OPT_EXIT) // Exit the program
  {
    platform_quit();
    exit(-1);
  }

  return ret;
}
Beispiel #25
0
/* Actions to be taken when a whole line of input has been processed */
ELEMENT *
end_line (ELEMENT *current)
{
  char *end_command = 0;
  enum command_id end_id;

  // 2621
  /* If empty line, start a new paragraph. */
  if (last_contents_child (current)
      && last_contents_child (current)->type == ET_empty_line)
    {
      debug ("END EMPTY LINE");
      if (current->type == ET_paragraph) /* 2625 */
        {
          ELEMENT *e;
          /* Remove empty_line element. */
          e = pop_element_from_contents (current);

          current = end_paragraph (current);

          /* Add empty_line to higher-level element. */
          add_to_element_contents (current, e);
        }
      //else if () // in menu_entry_description
      else if (!in_no_paragraph_contexts (current_context ()))
        {
          current = end_paragraph (current);
        }
    }

  // 2667
  /* The end of the line of a menu. */
  else if (current->type == ET_menu_entry_name
           || current->type == ET_menu_entry_node)
    {
      ELEMENT *end_comment;
      int empty_menu_entry_node = 0;

      if (current->type == ET_menu_entry_node)
        {
          ELEMENT *last = last_contents_child (current);

          if (current->contents.number > 0
              && (last->cmd == CM_c || last->cmd == CM_comment))
            {
              end_comment = pop_element_from_contents (current);
            }

          /* If contents empty or is all whitespace. */
          if (current->contents.number == 0
              || (current->contents.number == 1
                  && last->text.end > 0
                  && !last->text.text[strspn (last->text.text, 
                                              whitespace_chars)]))
            {
              empty_menu_entry_node = 1;
              if (end_comment)
                add_to_element_contents (current, end_comment);
            }
        }

      // 2689
      /* Abort the menu entry if there is no destination node given. */
      if (empty_menu_entry_node || current->type == ET_menu_entry_name)
        {
        }
      else // 2768
        {
          debug ("MENU ENTRY END LINE");
          current = current->parent;
          current = enter_menu_entry_node (current);
          if (end_comment)
            add_to_element_contents (current, end_comment);
        }
    }

  /* Is it a def line 2778 */
  else if (current->parent && current->parent->type == ET_def_line)
    {
      enum element_type def_command;

      if (pop_context () != ct_def)
        {
          abort ();
        }

#if 0
      /* current->parent is a ET_def_line, and current->parent->parent
         the def command. */
      def_command = current->parent->parent->cmd;
      // strip a trailing x
      parse_def (def_command, current->contents);
#endif

      current = current->parent->parent;
      current = begin_preformatted (current);

    }

  // 2872
  /* End of a line starting a block. */
  else if (current->type == ET_block_line_arg)
    {
      enum context c;
      // pop and check context_stack
      c = pop_context ();
      if (c != ct_line)
        {
          // bug
          abort ();
        }

      // 2881
      if (current->parent->cmd == CM_multitable)
        {
          /* Parse prototype row */
          // But not @columnfractions, I assume?
        }

      if (current->parent->cmd == CM_float) // 2943
        {
        }
      current = current->parent; //2965

      /* Don't consider empty argument of block @-command as argument,
         reparent them as contents. */
      if (current->args.list[0]->contents.number > 0
          && current->args.list[0]->contents.list[0]->type
             == ET_empty_line_after_command)
        {
          ELEMENT *e;
          e = current->args.list[0]->contents.list[0];
          insert_into_contents (current, e, 0);
          // TODO: Free lists?
          current->args.number = 0;
        }

      if (command_flags(current) & CF_blockitem) // 2981
        {
          if (current->cmd == CM_enumerate)
            {
            }
          else if (item_line_command (current->cmd)) // 3002
            {
              // check command_as_argument registered in 'extra', and
              // that it accepts arguments in braces
            }

          if (current->cmd == CM_itemize) // 3019
            {
              // check that command_as_argument is alone on the line
            }

          // check if command_as_argument isn't an accent command

          /* 3052 - if no command_as_argument given, default to @bullet for
             @itemize, and @asis for @table. */

          {
            ELEMENT *bi = new_element (ET_before_item);
            add_to_element_contents (current, bi);
            current = bi;
          }
        } /* CF_blockitem */

      // 3077
      if (command_flags(current) & CF_menu)
        {
          /* Start reading a menu.  Processing will continue in
             handle_menu in menus.c. */

          ELEMENT *menu_comment = new_element (ET_menu_comment);
          add_to_element_contents (current, menu_comment);
          current = menu_comment;
          debug ("MENU COMMENT OPEN");
          push_context (ct_preformatted);
        }
      current = begin_preformatted (current);
    }

  /* after an "@end verbatim" 3090 */
  else if (current->contents.number
           && last_contents_child(current)->type == ET_empty_line_after_command
    /* The Perl version gets the command with the 'command' key in 'extra'. */
           && contents_child_by_index(current, -2)
           && contents_child_by_index(current, -2)->cmd == CM_verbatim)
    {
      // I don't know what this means.  raw command is @html etc.?
      /*
     if we are after a @end verbatim, we must restart a preformatted if needed,
     since there is no @end command explicitly associated to raw commands
     it won't be done elsewhere.
      */

      current = begin_preformatted (current);
    }


  /* if it's a misc line arg 3100 */
  else if (current->type == ET_misc_line_arg)
    {
      int cmd_id, arg_type;
      enum context c;

      isolate_last_space (current, 0);

      current = current->parent;
      cmd_id = current->cmd;
      if (!cmd_id)
        abort ();

      arg_type = command_data(cmd_id).data;
       
      /* Check 'line' is top of the context stack */
      c = pop_context ();
      if (c != ct_line)
        {
          /* error */
          abort ();
        }

      // 3114
      debug ("MISC END %s", command_data(cmd_id).cmdname);

      if (arg_type > 0)
        {
          /* arg_type is number of args */
          // parse_line_command_args
          // save in 'misc_args' extra key
        }
      else if (arg_type == MISC_text) /* 3118 */
        {
          char *text;
         
          /* argument string has to be parsed as Texinfo. This calls convert in 
             Common/Text.pm on the first element of current->args. */
          /* however, this makes it impossible to decouple the parser and 
             output stages...  Any use of Texinfo::Convert is problematic. */

          if (current->args.number > 0)
            text = text_convert (current->args.list[0]);
          else
            text = "foo";

          if (!strcmp (text, ""))
            {
              /* 3123 warning - missing argument */
              abort ();
            }
          else
            {
              if (current->cmd == CM_end) /* 3128 */
                {
                  char *line = text;

                  /* Set end_command - used below. */
                  end_command = read_command_name (&line);

                  /* Check argument meets format of a Texinfo command
                     (alphanumberic character followed by alphanumeric 
                     characters or hyphens. */

                  /* Check if argument is a block Texinfo command. */
                  end_id = lookup_command (end_command);
                  if (end_id == -1 || !(command_data(end_id).flags & CF_block))
                    {
                      /* error - unknown @end */
                    }
                  else
                    {
                      debug ("END BLOCK %s", end_command);
                      /* 3140 Handle conditional block commands (e.g.  
                         @ifinfo) */

                      /* If we are in a non-ignored conditional, there is not
                         an element for the block in the tree; it is recorded 
                         in the conditional stack.  Pop it and check it is the 
                         same as the one given in the @end line. */

                      if (command_data(end_id).data == BLOCK_conditional)
                        {
                          if (conditional_number > 0)
                            {
                              enum command_id popped;
                              popped = pop_conditional_stack ();
                              if (popped != end_id)
                                abort ();
                            }
                        }
                    }
                }
              else if (current->cmd == CM_include) /* 3166 */
                {
                  debug ("Include %s", text);
                  input_push_file (text);
                }
              else if (current->cmd == CM_documentencoding)
                /* 3190 */
                {
                }
              else if (current->cmd == CM_documentlanguage)
                /* 3223 */
                {
                }
            }
        }
      else if (current->cmd == CM_node) /* 3235 */
        {
          int i;
          ELEMENT *arg;
          ELEMENT *first_arg;
          /* Construct 'nodes_manuals' array.  This would be an 'extra' 
             reference to an array that doesn't exist anywhere else. */

          /* This sets the 'node_content' and 'normalized' keys on each element 
             in 'nodes_manuals'. */
          //parse_node_manual ();
          
          /* In Perl a copy of the argument list is taken and the empty space 
             arguments are removed with trim_spaces_comment_from_content. */
          first_arg = current->args.list[0];
          arg = new_element (ET_NONE);
          arg->parent_type = route_not_in_tree;
          for (i = 0; i < first_arg->contents.number; i++)
            {
              if (first_arg->contents.list[i]->type
                    != ET_empty_spaces_after_command
                  && first_arg->contents.list[i]->type != ET_spaces_at_end)
                {
                  /* FIXME: Is this safe to serialize? */
                  /* For example, if there are extra keys in the elements under 
                     each argument?  They may not be set in a copy.
                     Hopefully there aren't many extra keys set on commands in 
                     node names. */
                  add_to_element_contents (arg, first_arg->contents.list[i]);
                }
            }
          add_extra_key_contents (current, "node_content", arg);

          /* Also set 'normalized' here.  The normalized labels are actually 
             the keys of "labels_information($parser)". */

          /*Check that the node name doesn't have a filename element for 
            referring to an external manual (_check_internal_node), and that it 
            is not empty (_check_empty_node).  */
          //check_node_label ();

          /* This sets 'node_content' and 'normalized' on the node, among
             other things (which were already set in parse_node_manual). */
          register_label (current, arg);

          current_node = current;
        }
      else if (current->cmd == CM_listoffloats) /* 3248 */
        {
        }
      else
        {
          /* All the other "line" commands" */
        }

      current = current->parent; /* 3285 */
      if (end_command) /* Set above */
        {
          /* more processing of @end */
          ELEMENT *end_elt;

          debug ("END COMMAND %s", end_command);

          /* Reparent the "@end" element to be a child of the block element. */
          end_elt = pop_element_from_contents (current);

          /* 3289 If not a conditional */
          if (command_data(end_id).data != BLOCK_conditional)
            {
              ELEMENT *closed_command;
              /* This closes tree elements (e.g. paragraphs) until we reach
                 end_command.  It can print an error if another block command
                 is found first. */
              current = close_commands (current, end_id,
                              &closed_command, 0); /* 3292 */
              if (!closed_command)
                abort (); // 3335

              close_command_cleanup (closed_command);
              // 3301 INLINE_INSERTCOPYING
              add_to_element_contents (closed_command, end_elt); // 3321
              // 3324 ET_menu_comment
              if (close_preformatted_command (end_id))
                current = begin_preformatted (current);
            }
        } /* 3340 */
      else
        {
          if (close_preformatted_command (cmd_id))
            current = begin_preformatted (current);
        }

      /* 3346 included file */

      /* 3350 */
      if (cmd_id == CM_setfilename && (current_node || current_section))
        {
          /* warning */
          abort ();
        }
      /* 3355 columnfractions */
      else if (cmd_id == CM_columnfractions)
        {
          ELEMENT *before_item;
          // check if in multitable

          // pop and check context stack

          current = current->parent;
          before_item = new_element (ET_before_item);
          add_to_element_contents (current, before_item);
          current = before_item;
        }
      else if (command_data(cmd_id).flags & CF_root) /* 3380 */
        {
          current = last_contents_child (current);
          
          /* 3383 Destroy all contents (why do we do this?) */
          while (last_contents_child (current))
            destroy_element (pop_element_from_contents (current));

          /* Set 'associated_section' extra key for a node. */
          if (cmd_id != CM_node && cmd_id != CM_part)
            {
              if (current_node)
                {
                  if (!lookup_extra_key (current_node, "associated_section"))
                    {
                      add_extra_key_element
                        (current_node, "associated_section", current);
                      add_extra_key_element
                        (current, "associated_node", current_node);
                    }
                }

              // "current parts" - 3394

              current_section = current;
            }
        } /* 3416 */
    }


  // something to do with an empty line /* 3419 */

  //if () /* 'line' or 'def' at top of "context stack" */
    {
      /* Recurse. */
    }
  return current;
} /* end_line 3487 */