Example #1
0
/* 
 * Extract an ELEMENT from a TUPLE. Bump the 
 * reference counter on the extracted object.
 */
ETERM *erl_element (int ix, const ETERM *ep)
{
  if ((!ep) || (ix < 0)) return NULL;
  /*
   * ASSERT(ep != NULL);
   * ASSERT(ix >= 0);
   */

  if ((ERL_TYPE(ep) == ERL_TUPLE) &&  (ix <= ERL_TUPLE_SIZE(ep))) {
      ERL_COUNT(ERL_TUPLE_ELEMENT(ep, ix-1))++;
      return ERL_TUPLE_ELEMENT(ep, ix-1);
    }
    else 
	return NULL;
} /* erl_element */
Example #2
0
int erl_setelement (int ix, ETERM *ep, ETERM *vp)
{
  if ((!ep) || (!vp)) return 0;
  /* ASSERT(ep != NULL);
   * ASSERT(vp != NULL);
   */

  if ((ERL_TYPE(ep) == ERL_TUPLE) && (ix <= ERL_TUPLE_SIZE(ep))) {
      erl_free_term(ERL_TUPLE_ELEMENT(ep, ix-1));
      ERL_TUPLE_ELEMENT(ep, ix-1) = vp;
      ERL_COUNT(vp)++;
      return 1;
  }  
  erl_err_msg("<ERROR> erl_setelement: Bad type to setelement or out of range \n");
  return 0;
}
Example #3
0
/*
 * Return the SIZE of a TUPLE or a BINARY.
 * At failure -1 is returned.
 */
int erl_size (const ETERM *ep)
{
  if (!ep) return -1;
  
  /* ASSERT(ep != NULL); */

  switch (ERL_TYPE(ep)) {
  case ERL_TUPLE:
      return ERL_TUPLE_SIZE(ep);

  case ERL_BINARY:
      return ERL_BIN_SIZE(ep);

  default:
      return -1;

  }
}
Example #4
0
/* 
 * Return the CONTENT of a VARIABLE with NAME.
 * If the content is non-nil then bump its
 * reference counter.
 */
ETERM *erl_var_content (const ETERM *ep, const char *name)
{
  int i;
  ETERM *vp;

  if ((!ep) || (!name)) return NULL;
    
  /*   ASSERT(ep != NULL); */

  switch(ERL_TYPE(ep)) 
    {
    case ERL_VARIABLE:
	if (strcmp(ERL_VAR_NAME(ep), name) == 0) {
	    if ((vp = ERL_VAR_VALUE(ep)) != NULL) {
		ERL_COUNT(vp)++;
		return vp;
	    }
	}
	break;

    case ERL_LIST:
      while (ep && (ERL_TYPE(ep) != ERL_EMPTY_LIST)) {
	if ((vp = erl_var_content(HEAD(ep), name))) return vp;
	ep = TAIL(ep);
      }
      break;

    case ERL_TUPLE:
      for (i=0; i < ERL_TUPLE_SIZE(ep); i++) 
	  if ((vp = erl_var_content(ERL_TUPLE_ELEMENT(ep, i), name)))
	  {
	      return vp;
	  }
      break;
    
    default:
      /* variables can't occur in other types */
      break;
    }
    
  /* nothing found ! */
  return NULL;
}
Example #5
0
/*
 * Create a TUPLE. For each element in the tuple
 * bump its reference counter.
 */
ETERM *erl_mk_tuple (ETERM **arr,int size)
{
    ETERM *ep;
    int i;

    if ((!arr) || (size < 0)) return NULL;
    for (i=0; i<size; i++) if (!arr[i]) return NULL;
    /* ASSERT(arr != NULL); */
	
    ep = erl_alloc_eterm(ERL_TUPLE);
    ERL_COUNT(ep) = 1;
    ERL_TUPLE_SIZE(ep) = size;
    ERL_TUPLE_ELEMS(ep) = (ETERM**) erl_malloc((size) * (sizeof(ETERM*)));
    for (i = 0; i < size; i++) {
      /* ASSERT(arr[i] != NULL); */
      ERL_COUNT(arr[i])++;
      ERL_TUPLE_ELEMENT(ep, i) = arr[i];
    }
    return ep;
}
Example #6
0
int erl_print_term(FILE *fp, const ETERM *ep)
{
    int j,i,doquote;
    int ch_written = 0; /* counter of written chars */

    if ((!fp) || (!ep)) return 0;
    /* ASSERT(ep != NULL); */

    j = i = doquote = 0;
    switch(ERL_TYPE(ep)) 
    {
    case ERL_ATOM: {
	char* adata = ERL_ATOM_PTR(ep);
	/* FIXME: what if some weird locale is in use? */
	if (!islower(adata[0]))
	    doquote = 1;

	for (i = 0; !doquote && i < ERL_ATOM_SIZE(ep); i++) 
	{
	    doquote = !(isalnum(adata[i]) || (adata[i] == '_'));
	}

	if (doquote) {
	    putc('\'', fp);
	    ch_written++; 
	}
	fputs(adata, fp);
	ch_written += ERL_ATOM_SIZE(ep);	
	if (doquote) {
	    putc('\'', fp);
	    ch_written++;
	}
	break;
    }
    case ERL_VARIABLE:
	if (!isupper((int)ERL_VAR_NAME(ep)[0])) {
	    doquote = 1;
	    putc('\'', fp);
	    ch_written++;
	}
	
	fputs(ERL_VAR_NAME(ep), fp);
	ch_written += ERL_VAR_LEN(ep);
	
	if (doquote) {
	    putc('\'', fp);
	    ch_written++;
	}
	break;

    case ERL_PID:
	ch_written += fprintf(fp, "<%s.%d.%d>", 
			    ERL_PID_NODE(ep), 
			    ERL_PID_NUMBER(ep), ERL_PID_SERIAL(ep));
      break;
    case ERL_PORT:
      ch_written += fprintf(fp, "#Port");
      break;
    case ERL_REF:
      ch_written += fprintf(fp, "#Ref");
      break;
    case ERL_EMPTY_LIST:
      ch_written += fprintf(fp, "[]");
      break;
    case ERL_LIST: 
	if (is_printable_list(ep)) {
	    ch_written += print_string(fp, ep);
	} else {
	    putc('[', fp);
	    ch_written++;
	    while (ERL_IS_CONS(ep)) {
		ch_written += erl_print_term(fp, HEAD(ep));
		ep = TAIL(ep);
		if (ERL_IS_CONS(ep)) {
		    putc(',', fp);
		    ch_written++;
		}
	    }
	    if (!ERL_IS_EMPTY_LIST(ep)) {
		putc('|', fp);
		ch_written++;
		ch_written += erl_print_term(fp, ep);
	    }
	    putc(']', fp);
	    ch_written++;
	}
	break;
    case ERL_TUPLE:
      putc('{', fp);
      ch_written++;
      for (i=0; i < ERL_TUPLE_SIZE(ep); i++) {
	ch_written += erl_print_term(fp, ERL_TUPLE_ELEMENT(ep, j++) );
	if (i != ERL_TUPLE_SIZE(ep)-1) {
	  putc(',', fp);
	  ch_written++;
	}
      }
      putc('}', fp);
      ch_written++;
      break;
    case ERL_BINARY: {
	int sz = (ERL_BIN_SIZE(ep) > 20) ? 20 : ERL_BIN_SIZE(ep);
	unsigned char *ptr = ERL_BIN_PTR(ep);
	ch_written += fprintf(fp, "#Bin<");
	for (i = 0; i < sz; i++) { 
	    putc(ptr[i], fp); ch_written++;
	}
	if (sz == 20) ch_written += fprintf(fp, "(%d)....>", ERL_BIN_SIZE(ep)-20);
	else ch_written += fprintf(fp, ">");
	break;
      }
    case ERL_INTEGER:
    case ERL_SMALL_BIG:
      ch_written += fprintf(fp, "%d", ERL_INT_VALUE(ep));
      break;
    case ERL_U_INTEGER:
    case ERL_U_SMALL_BIG:
      ch_written += fprintf(fp, "%d", ERL_INT_UVALUE(ep));
      break;
    case ERL_LONGLONG:
    case ERL_U_LONGLONG:
      ch_written += fprintf(fp, "%lld", ERL_LL_UVALUE(ep));
      break;
    case ERL_FLOAT:
      ch_written += fprintf(fp, "%f", ERL_FLOAT_VALUE(ep));
      break;
    case ERL_FUNCTION:
      ch_written += fprintf(fp, "#Fun<");
      ch_written += erl_print_term(fp, ERL_FUN_MODULE(ep));
      putc('.', fp);
      ch_written++;
      ch_written += erl_print_term(fp, ERL_FUN_INDEX(ep));
      putc('.', fp);
      ch_written++;
      ch_written += erl_print_term(fp, ERL_FUN_UNIQ(ep));
      putc('>', fp);
      ch_written++;
      break;
    default:
      ch_written = -10000;
      erl_err_msg("<ERROR> erl_print_term: Bad type of term !");
    }
  return ch_written;
}
Example #7
0
/*
 * FIXME: Deep (the whole tree) or shallow (just the top term) copy?
 * The documentation never says, but the code as written below will
 * make a deep copy. This should be documented.
 */
ETERM *erl_copy_term(const ETERM *ep)
{
    int i;
    ETERM *cp;

    if (!ep) return NULL;
    /* ASSERT(ep != NULL); */
    
    cp = erl_alloc_eterm(ERL_TYPE(ep));
    ERL_COUNT(cp) = 1;

    switch(ERL_TYPE(cp)) {
    case ERL_INTEGER:
    case ERL_SMALL_BIG:
	ERL_INT_VALUE(cp) = ERL_INT_VALUE(ep);
	break;
    case ERL_U_INTEGER:
    case ERL_U_SMALL_BIG:
	ERL_INT_UVALUE(cp) = ERL_INT_UVALUE(ep);
	break;
    case ERL_LONGLONG:
	ERL_LL_VALUE(cp) = ERL_LL_VALUE(ep);
	break;
    case ERL_U_LONGLONG:
	ERL_LL_UVALUE(cp) = ERL_LL_UVALUE(ep);
	break;
    case ERL_FLOAT:
	ERL_FLOAT_VALUE(cp) = ERL_FLOAT_VALUE(ep);
	break;
    case ERL_ATOM:
	if (!erl_atom_copy(&cp->uval.aval.d, &ep->uval.aval.d))
	{
	    erl_free_term(cp);
	    erl_errno = ENOMEM;
	    return NULL;
	}
	break;
    case ERL_PID:
	/* FIXME: First copy the bit pattern, then duplicate the node
           name and plug in. Somewhat ugly (also done with port and
           ref below). */
	memcpy(&cp->uval.pidval, &ep->uval.pidval, sizeof(Erl_Pid));
	erl_atom_copy(&cp->uval.pidval.node, &ep->uval.pidval.node);
	ERL_COUNT(cp) = 1;
	break;
    case ERL_PORT:
	memcpy(&cp->uval.portval, &ep->uval.portval, sizeof(Erl_Port));
	erl_atom_copy(&cp->uval.portval.node, &ep->uval.portval.node);
	ERL_COUNT(cp) = 1;
	break;
    case ERL_REF:
	memcpy(&cp->uval.refval, &ep->uval.refval, sizeof(Erl_Ref));
	erl_atom_copy(&cp->uval.refval.node, &ep->uval.refval.node);
	ERL_COUNT(cp) = 1;
	break;
    case ERL_LIST:
	HEAD(cp) = erl_copy_term(HEAD(ep));
	TAIL(cp) = erl_copy_term(TAIL(ep));
	break;
    case ERL_EMPTY_LIST:
	break;
    case ERL_TUPLE:
	i = ERL_TUPLE_SIZE(cp) = ERL_TUPLE_SIZE(ep);
	ERL_TUPLE_ELEMS(cp) = (ETERM**) erl_malloc(i * sizeof(ETERM*));
	for(i=0; i < ERL_TUPLE_SIZE(ep); i++) 
	    ERL_TUPLE_ELEMENT(cp,i) = erl_copy_term(ERL_TUPLE_ELEMENT(ep, i));
	break;
    case ERL_BINARY:
	ERL_BIN_SIZE(cp) = ERL_BIN_SIZE(ep);
	ERL_BIN_PTR(cp) = (unsigned char *) erl_malloc(ERL_BIN_SIZE(ep));
	memcpy(ERL_BIN_PTR(cp), ERL_BIN_PTR(ep), ERL_BIN_SIZE(ep));
	break;
    case ERL_FUNCTION:
	i = ERL_CLOSURE_SIZE(cp) = ERL_CLOSURE_SIZE(ep);
	ERL_FUN_ARITY(cp)     = ERL_FUN_ARITY(ep);
	ERL_FUN_NEW_INDEX(cp) = ERL_FUN_NEW_INDEX(ep);
	ERL_FUN_INDEX(cp)     = erl_copy_term(ERL_FUN_INDEX(ep));
	ERL_FUN_UNIQ(cp)      = erl_copy_term(ERL_FUN_UNIQ(ep));
	ERL_FUN_CREATOR(cp)   = erl_copy_term(ERL_FUN_CREATOR(ep));
	ERL_FUN_MODULE(cp)    = erl_copy_term(ERL_FUN_MODULE(ep));
	memcpy(ERL_FUN_MD5(cp), ERL_FUN_MD5(ep), sizeof(ERL_FUN_MD5(ep)));
	ERL_CLOSURE(cp) = (ETERM**) erl_malloc(i * sizeof(ETERM*));
	for(i=0; i < ERL_CLOSURE_SIZE(ep); i++) 
	    ERL_CLOSURE_ELEMENT(cp,i) = 
		erl_copy_term(ERL_CLOSURE_ELEMENT(ep, i));
	break;
    default:
	erl_err_msg("<ERROR> erl_copy_term: wrong type encountered !");
	erl_free_term(cp);
	return (ETERM *) NULL;
    }
    
    return cp;
}
Example #8
0
int erl_sprint_term(char *buf, const ETERM *ep)
{
    int j,i,doquote;
    int ch_written = 0; /* counter of written chars */

    if ((!buf) || (!ep)) return 0;
    /* ASSERT(ep != NULL); */

    j = i = doquote = 0;
    switch(ERL_TYPE(ep)) 
    {
    case ERL_ATOM:
	/* FIXME: what if some weird locale is in use? */
	if (!islower((int)ERL_ATOM_PTR(ep)[0]))
	    doquote = 1;

	for (i = 0; !doquote && i < ERL_ATOM_SIZE(ep); i++) 
	{
	    doquote = !(isalnum((int)ERL_ATOM_PTR(ep)[i]) 
			|| (ERL_ATOM_PTR(ep)[i] == '_'));
	}

	if (doquote) {
	    *buf++ = '\'';
	    ch_written++; 
	}
	{
	    int len = ERL_ATOM_SIZE(ep);
	    strncpy(buf, ERL_ATOM_PTR(ep), len);
	    buf += len;
	    ch_written += len;	
	}
	if (doquote) {
	    *buf++ = '\'';
	    ch_written++;
	}
	break;

    case ERL_VARIABLE:
	if (!isupper((int)ERL_VAR_NAME(ep)[0])) {
	    doquote = 1;
	    *buf++ = '\'';
	    ch_written++;
	}
	len = ERL_VAR_LEN(ep);
	strncpy(buf, ERL_VAR_NAME(ep), len);
	buf += len;
	ch_written += len;
	
	if (doquote) {
	    *buf++ = '\'';
	    ch_written++;
	}
	break;

    case ERL_PID:
	len = sprintf(buf, "<%s.%d.%d>", 
		      ERL_PID_NODE(ep), 
		      ERL_PID_NUMBER(ep), ERL_PID_SERIAL(ep));
        buf += len;
        ch_written += len;
	break;
    case ERL_PORT:
	len = sprintf(buf , "#Port");
        buf += len;
        ch_written += len;
	break;
    case ERL_REF:
	len = sprintf(buf , "#Ref");
        buf += len;
        ch_written += len;
	break;
    case ERL_EMPTY_LIST:
	len = sprintf(buf , "[]");
        buf += len;
        ch_written += len;
	break;
    case ERL_LIST: 
	if (is_printable_list(ep)) {
	    ch_written += print_string(fp, ep);
	} else {
	    putc('[', fp);
	    ch_written++;
	    while (ERL_IS_CONS(ep)) {
		ch_written += erl_sprint_term(fp, HEAD(ep));
		ep = TAIL(ep);
		if (ERL_IS_CONS(ep)) {
		    putc(',', fp);
		    ch_written++;
		}
	    }
	    if (!ERL_IS_EMPTY_LIST(ep)) {
		putc('|', fp);
		ch_written++;
		ch_written += erl_sprint_term(fp, ep);
	    }
	    putc(']', fp);
	    ch_written++;
	}
	break;
    case ERL_TUPLE:
      putc('{', fp);
      ch_written++;
      for (i=0; i < ERL_TUPLE_SIZE(ep); i++) {
	ch_written += erl_sprint_term(fp, ERL_TUPLE_ELEMENT(ep, j++) );
	if (i != ERL_TUPLE_SIZE(ep)-1) {
	  putc(',', fp);
	  ch_written++;
	}
      }
      putc('}', fp);
      ch_written++;
      break;
    case ERL_BINARY:
	len = sprintf(buf , "#Bin");
        buf += len;
        ch_written += len;
	break;
    case ERL_INTEGER:
    case ERL_SMALL_BIG:
	len = sprintf(buf , "%d", ERL_INT_VALUE(ep));
        buf += len;
        ch_written += len;
	break;
    case ERL_U_INTEGER:
    case ERL_U_SMALL_BIG:
	len = sprintf(buf , "%d", ERL_INT_UVALUE(ep));
        buf += len;
        ch_written += len;
	break;
    case ERL_FLOAT:
	len = sprintf(buf , "%f", ERL_FLOAT_VALUE(ep));
        buf += len;
        ch_written += len;
	break;
    case ERL_FUNCTION:
	len = sprintf(buf , "#Fun<");
        buf += len;
        ch_written += len;
	ch_written += erl_sprint_term(fp, ERL_FUN_MODULE(ep));
	putc('.', fp);
	ch_written++;
	ch_written += erl_sprint_term(fp, ERL_FUN_INDEX(ep));
	putc('.', fp);
	ch_written++;
	ch_written += erl_sprint_term(fp, ERL_FUN_UNIQ(ep));
	putc('>', fp);
	ch_written++;
	break;
    default:
	ch_written = -10000;
	erl_err_msg("<ERROR> erl_sprint_term: Bad type of term !");
    }
    return ch_written;
}
Example #9
0
int main(void)
#endif
{
  ei_x_buff eix;
  int index = 0;
  ETERM **etermpp = NULL, *etermp = NULL;
  char *charp = NULL;
  unsigned char uchar, **ucharpp = NULL, *ucharp = NULL;
  void *voidp = NULL;
  Erl_Heap *erl_heapp = NULL;
  int intx = 0;
  int *intp = NULL;
  unsigned int uintx, *uintp;
  unsigned long *ulongp = NULL;
  long longx = 0;
  double doublex = 0.0;
  short shortx = 42;
  FILE *filep = NULL;
  Erl_IpAddr erl_ipaddr = NULL;
  ErlMessage *erlmessagep = NULL;
  ErlConnect *erlconnectp = NULL;
  struct hostent *hostp = NULL;
  struct in_addr *inaddrp = NULL;

  /* Converion to erl_interface format is in liberl_interface */

  intx = erl_errno;

  ei_encode_term(charp, &index, voidp);
  ei_x_encode_term(&eix, voidp);
  ei_decode_term(charp, &index, voidp);

  erl_init(voidp, longx);
  erl_connect_init(intx, charp,shortx);
  erl_connect_xinit(charp,charp,charp,erl_ipaddr,charp,shortx);
  erl_connect(charp); 
  erl_xconnect(erl_ipaddr,charp);
  erl_close_connection(intx);
  erl_receive(intx, ucharp, intx);
  erl_receive_msg(intx, ucharp, intx, erlmessagep);
  erl_xreceive_msg(intx, ucharpp, intp, erlmessagep);
  erl_send(intx, etermp, etermp);
  erl_reg_send(intx, charp, etermp);
  erl_rpc(intx,charp,charp,etermp);
  erl_rpc_to(intx,charp,charp,etermp);
  erl_rpc_from(intx,intx,erlmessagep);

  erl_publish(intx);
  erl_accept(intx,erlconnectp);

  erl_thiscookie();
  erl_thisnodename();
  erl_thishostname();
  erl_thisalivename();
  erl_thiscreation();
  erl_unpublish(charp);
  erl_err_msg(charp);
  erl_err_quit(charp);
  erl_err_ret(charp);
  erl_err_sys(charp);

  erl_cons(etermp,etermp);
  erl_copy_term(etermp);
  erl_element(intx,etermp);

  erl_hd(etermp);
  erl_iolist_to_binary(etermp);
  erl_iolist_to_string(etermp);
  erl_iolist_length(etermp);
  erl_length(etermp);
  erl_mk_atom(charp);
  erl_mk_binary(charp,intx);
  erl_mk_empty_list();
  erl_mk_estring(charp, intx);
  erl_mk_float(doublex);
  erl_mk_int(intx);
  erl_mk_list(etermpp,intx);
  erl_mk_pid(charp,uintx,uintx,uchar);
  erl_mk_port(charp,uintx,uchar);
  erl_mk_ref(charp,uintx,uchar);
  erl_mk_long_ref(charp,uintx,uintx,uintx,uchar);
  erl_mk_string(charp);
  erl_mk_tuple(etermpp,intx);
  erl_mk_uint(uintx);
  erl_mk_var(charp);
  erl_print_term(filep,etermp);
  /*  erl_sprint_term(charp,etermp); */
  erl_size(etermp);
  erl_tl(etermp);
  erl_var_content(etermp, charp);

  erl_format(charp);
  erl_match(etermp, etermp);

  erl_global_names(intx, intp);
  erl_global_register(intx, charp, etermp);
  erl_global_unregister(intx, charp);
  erl_global_whereis(intx, charp, charp);

  erl_init_malloc(erl_heapp,longx);
  erl_alloc_eterm(uchar);
  erl_eterm_release();
  erl_eterm_statistics(ulongp,ulongp);
  erl_free_array(etermpp,intx);
  erl_free_term(etermp);
  erl_free_compound(etermp);
  erl_malloc(longx);
  erl_free(voidp);

  erl_compare_ext(ucharp, ucharp);
  erl_decode(ucharp);
  erl_decode_buf(ucharpp);
  erl_encode(etermp,ucharp);
  erl_encode_buf(etermp,ucharpp);
  erl_ext_size(ucharp);
  erl_ext_type(ucharp);
  erl_peek_ext(ucharp,intx);
  erl_term_len(etermp);

  erl_gethostbyname(charp);
  erl_gethostbyaddr(charp, intx, intx);
  erl_gethostbyname_r(charp, hostp, charp, intx, intp);
  erl_gethostbyaddr_r(charp, intx, intx, hostp, charp, intx, intp);

  erl_init_resolve();
  erl_distversion(intx);

  erl_epmd_connect(inaddrp);
  erl_epmd_port(inaddrp, charp, intp);

  charp  = ERL_ATOM_PTR(etermp);
  intx   = ERL_ATOM_SIZE(etermp);
  ucharp = ERL_BIN_PTR(etermp);
  intx   = ERL_BIN_SIZE(etermp);
  etermp = ERL_CONS_HEAD(etermp);
  etermp = ERL_CONS_TAIL(etermp);
  intx   = ERL_COUNT(etermp);
  doublex= ERL_FLOAT_VALUE(etermp);
  uintx  = ERL_INT_UVALUE(etermp);
  intx   = ERL_INT_VALUE(etermp);
  intx   = ERL_IS_ATOM(etermp);
  intx   = ERL_IS_BINARY(etermp);
  intx   = ERL_IS_CONS(etermp);
  intx   = ERL_IS_EMPTY_LIST(etermp);
  intx   = ERL_IS_FLOAT(etermp);
  intx   = ERL_IS_INTEGER(etermp);
  intx   = ERL_IS_LIST(etermp);
  intx   = ERL_IS_PID(etermp);
  intx   = ERL_IS_PORT(etermp);
  intx   = ERL_IS_REF(etermp);
  intx   = ERL_IS_TUPLE(etermp);
  intx   = ERL_IS_UNSIGNED_INTEGER(etermp);
  uchar  = ERL_PID_CREATION(etermp);
  charp  = ERL_PID_NODE(etermp);
  uintx  = ERL_PID_NUMBER(etermp);
  uintx  = ERL_PID_SERIAL(etermp);
  uchar  = ERL_PORT_CREATION(etermp);
  charp  = ERL_PORT_NODE(etermp);
  uintx  = ERL_PORT_NUMBER(etermp);
  uchar  = ERL_REF_CREATION(etermp);
  intx   = ERL_REF_LEN(etermp);
  charp  = ERL_REF_NODE(etermp);
  uintx  = ERL_REF_NUMBER(etermp);
  uintp  = ERL_REF_NUMBERS(etermp);
  etermp = ERL_TUPLE_ELEMENT(etermp,intx);
  intx   = ERL_TUPLE_SIZE(etermp);

  return 
      BUFSIZ +
      EAGAIN +
      EHOSTUNREACH +
      EINVAL +
      EIO +
      EMSGSIZE +
      ENOMEM +
      ERL_ATOM +
      ERL_BINARY +
      ERL_ERROR +
      ERL_EXIT +
      ERL_FLOAT +
      ERL_INTEGER +
      ERL_LINK +
      ERL_LIST +
      ERL_MSG +
      ERL_NO_TIMEOUT +
      ERL_PID +
      ERL_PORT +
      ERL_REF +
      ERL_REG_SEND +
      ERL_SEND +
      ERL_SMALL_BIG +
      ERL_TICK +
      ERL_TIMEOUT +
      ERL_TUPLE +
      ERL_UNLINK +
      ERL_U_INTEGER +
      ERL_U_SMALL_BIG +
      ERL_VARIABLE +
      ETIMEDOUT +
      MAXNODELEN +
      MAXREGLEN;
}
Example #10
0
/**
 ** rockse <path_to_tbl> <path_to_log>
 **/
int main(int argc, char **argv) {
  rockse * ptr;

  ETERM *from_erl;
  ETERM *cmd;
  ETERM *key;
  ETERM *value;

  char *ret;
  ETERM *to_send;

  byte buf[1024];
  int length;

  log = fopen(argv[2], "a+");

  erl_init(NULL, 0);
  fprintf(log, "*** rockse opening table %s\n", argv[1]);
  ptr = open(argv[1]);

  while (read_cmd(buf) > 0) {

    from_erl = erl_decode(buf);
    fprintf(log, "  rockse command type %d\n", ERL_TYPE(from_erl));
 
    if (match_close(from_erl)) {
      send_bok();
      fprintf(log, "   rockse command +close+ sent\n");
      break; 
    }

    if (ERL_IS_TUPLE(from_erl) && ERL_TUPLE_SIZE(from_erl) == 3) {
      /* can only be a {put, key, val} */
      cmd = ERL_TUPLE_ELEMENT(from_erl, 0);

      if (match_put(cmd)) {
	key = ERL_TUPLE_ELEMENT(from_erl, 1);
	value = ERL_TUPLE_ELEMENT(from_erl, 2);

	fprintf(log, "   rockse command +put+ %s %s sent\n", erl_iolist_to_string(key), erl_iolist_to_string(value));

	put(ptr, erl_iolist_to_string(key), erl_iolist_to_string(value));
	send_put_ok();
      }
      erl_free_term(from_erl);
      erl_free_term(cmd);
      erl_free_term(key);
      erl_free_term(value);
    }
    if (ERL_IS_TUPLE(from_erl) && ERL_TUPLE_SIZE(from_erl) == 2) {
      /* can only be a {get, key} or {delete, key} */
      cmd = ERL_TUPLE_ELEMENT(from_erl, 0);
      if (match_get(cmd)) {
	key = ERL_TUPLE_ELEMENT(from_erl, 1);

	fprintf(log, "   rockse command +get+ %s sent\n", erl_iolist_to_string(key));

	ret = get(ptr, erl_iolist_to_string(key));
	if (ret == NULL) {
	  send_nok();
	}
	else {
	  length = strlen(ret);

	  fprintf(log, "   rockse command +get+ found %s of size %d\n", ret, length);

	  to_send = erl_format("{ok, get, ~s}", ret);
	  send_get_result(to_send);
	  free(ret);
	}
      }
      else if (match_delete(cmd)) {
	key = ERL_TUPLE_ELEMENT(from_erl, 1);

	fprintf(log, "   rockse command +delete+ %s sent\n", erl_iolist_to_string(key));

	delete(ptr, erl_iolist_to_string(key));
	send_delete_ok();
      }

      erl_free_term(from_erl);
      erl_free_term(cmd);
      erl_free_term(key);
    }


    fflush(log);
  }

  close_and_destroy(ptr);
  fprintf(log, "*** rockse closing table %s\n", argv[1]);

  erl_free_term(from_erl);

  fclose(log);

  return 0;
}
Example #11
0
/*
 * Dump (print for debugging) a term. Useful if/when things go wrong.
 */
void
dump_term (FILE *fp, ETERM *t)
{
    if (fp == NULL) return;

    fprintf(fp, "#<%p ", t);

    if(t != NULL)
    {
	fprintf(fp, "count:%d, type:%d", ERL_COUNT(t), ERL_TYPE(t));

	switch(ERL_TYPE(t))
	{
	case ERL_UNDEF:
	    fprintf(fp, "==undef");
	    break;
	case ERL_INTEGER:
	    fprintf(fp, "==int, val:%d", ERL_INT_VALUE(t));
	    break;
	case ERL_U_INTEGER:
	    fprintf(fp, "==uint, val:%u", ERL_INT_UVALUE(t));
	    break;
	case ERL_FLOAT:
	    fprintf(fp, "==float, val:%g", ERL_FLOAT_VALUE(t));
	    break;
	case ERL_ATOM:
	    fprintf(fp, "==atom, name:%p \"%s\"", 
		    ERL_ATOM_PTR(t), ERL_ATOM_PTR(t));
	    break;
	case ERL_BINARY:
	    fprintf(fp, "==binary, data:%p,%u",
		    ERL_BIN_PTR(t), ERL_BIN_SIZE(t));
	    break;
	case ERL_PID:
	    fprintf(fp, "==pid, node:%p \"%s\"",
		    ERL_PID_NODE(t), ERL_PID_NODE(t));
	    break;
	case ERL_PORT:
	    fprintf(fp, "==port, node:%p \"%s\"",
		    ERL_PORT_NODE(t), ERL_PORT_NODE(t));
	    break;
	case ERL_REF:
	    fprintf(fp, "==ref, node:%p \"%s\"",
		    ERL_REF_NODE(t), ERL_REF_NODE(t));
	    break;
	case ERL_CONS:
	    fprintf(fp, "==cons");
	    fprintf(fp, ", car:");
	    dump_term(fp, ERL_CONS_HEAD(t));
	    fprintf(fp, ", cdr:");
	    dump_term(fp, ERL_CONS_TAIL(t));
	    break;
	case ERL_NIL:
	    fprintf(fp, "==nil");
	    break;
	case ERL_TUPLE:
	    fprintf(fp, "==tuple, elems:%p,%u", 
		    ERL_TUPLE_ELEMS(t), ERL_TUPLE_SIZE(t));
	    {
		size_t i;
		for(i = 0; i < ERL_TUPLE_SIZE(t); i++)
		{
		    fprintf(fp, "elem[%u]:", i);
		    dump_term(fp, ERL_TUPLE_ELEMENT(t, i));		    
		}
	    }
	    break;
	case ERL_VARIABLE:
	    fprintf(fp, "==variable, name:%p \"%s\"",
		    ERL_VAR_NAME(t), ERL_VAR_NAME(t));
	    fprintf(fp, ", value:");
	    dump_term(fp, ERL_VAR_VALUE(t));	    
	    break;

	default:
	    break;
	}
    }
    fprintf(fp, ">");
}