void gtm_startup(struct startup_vector *svec)
/* Note: various references to data copied from *svec could profitably be referenced directly */
{
unsigned char *mstack_ptr;
void gtm_ret_code();
static readonly unsigned char init_break[1] = {'B'};
int4 lct;
int i;
static char other_mode_buf[] = "OTHER";
mstr log_name;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
assert(INVALID_IMAGE != image_type);
assert(svec->argcnt == SIZEOF(*svec));
IA64_ONLY(init_xfer_table());
get_page_size();
cache_table_relobjs = &cache_table_rebuild;
ht_rhash_ch = &hashtab_rehash_ch;
jbxm_dump_ch = &jobexam_dump_ch;
heartbeat_timer_ptr = &heartbeat_timer;
stpgc_ch = &stp_gcol_ch;
rtn_fst_table = rtn_names = (rtn_tabent *)svec->rtn_start;
rtn_names_end = rtn_names_top = (rtn_tabent *)svec->rtn_end;
if (svec->user_stack_size < 4096)
svec->user_stack_size = 4096;
if (svec->user_stack_size > 8388608)
svec->user_stack_size = 8388608;
mstack_ptr = (unsigned char *)malloc(svec->user_stack_size);
msp = stackbase = mstack_ptr + svec->user_stack_size - mvs_size[MVST_STORIG];
/* mark the stack base so that if error occur during call-in gtm_init(), the unwind
* logic in gtmci_ch() will get rid of the stack completely
*/
fgncal_stack = stackbase;
mv_chain = (mv_stent *)msp;
mv_chain->mv_st_type = MVST_STORIG; /* Initialize first (anchor) mv_stent so doesn't do anything */
mv_chain->mv_st_next = 0;
mv_chain->mv_st_cont.mvs_storig = 0;
stacktop = mstack_ptr + 2 * mvs_size[MVST_NTAB];
stackwarn = stacktop + (16 * 1024);
break_message_mask = svec->break_message_mask;
if (svec->user_strpl_size < STP_INITSIZE)
svec->user_strpl_size = STP_INITSIZE;
else if (svec->user_strpl_size > STP_MAXINITSIZE)
svec->user_strpl_size = STP_MAXINITSIZE;
stp_init(svec->user_strpl_size);
if (svec->user_indrcache_size > MAX_INDIRECTION_NESTING || svec->user_indrcache_size < MIN_INDIRECTION_NESTING)
svec->user_indrcache_size = MIN_INDIRECTION_NESTING;
TREF(ind_result_array) = (mval **)malloc(SIZEOF(mval *) * svec->user_indrcache_size);
TREF(ind_source_array) = (mval **)malloc(SIZEOF(mval *) * svec->user_indrcache_size);
TREF(ind_result_sp) = TREF(ind_result_array);
TREF(ind_result_top) = TREF(ind_result_sp) + svec->user_indrcache_size;
TREF(ind_source_sp) = TREF(ind_source_array);
TREF(ind_source_top) = TREF(ind_source_sp) + svec->user_indrcache_size;
rts_stringpool = stringpool;
TREF(compile_time) = FALSE;
/* assert that is_replicator and run_time is properly set by gtm_imagetype_init invoked at process entry */
# ifdef DEBUG
switch (image_type)
{
case GTM_IMAGE:
case GTM_SVC_DAL_IMAGE:
assert(is_replicator && run_time);
break;
case MUPIP_IMAGE:
assert(!is_replicator && !run_time);
break;
default:
assert(FALSE);
}
# endif
gtm_utf8_init(); /* Initialize the runtime for Unicode */
/* Initialize alignment requirement for the runtime stringpool */
log_name.addr = DISABLE_ALIGN_STRINGS;
log_name.len = STR_LIT_LEN(DISABLE_ALIGN_STRINGS);
/* mstr_native_align = logical_truth_value(&log_name, FALSE, NULL) ? FALSE : TRUE; */
mstr_native_align = FALSE; /* TODO: remove this line and uncomment the above line */
getjobname();
INVOKE_INIT_SECSHR_ADDRS;
getzprocess();
getzmode();
geteditor();
zcall_init();
cmd_qlf.qlf = glb_cmd_qlf.qlf;
cache_init();
# ifdef __sun
if (NULL != GETENV(PACKAGE_ENV_TYPE)) /* chose xcall (default) or rpc zcall */
xfer_table[xf_fnfgncal] = (xfer_entry_t)op_fnfgncal_rpc; /* using RPC */
# endif
msp -= SIZEOF(stack_frame);
frame_pointer = (stack_frame *)msp;
memset(frame_pointer,0, SIZEOF(stack_frame));
frame_pointer->temps_ptr = (unsigned char *)frame_pointer;
frame_pointer->ctxt = GTM_CONTEXT(gtm_ret_code);
frame_pointer->mpc = CODE_ADDRESS(gtm_ret_code);
frame_pointer->type = SFT_COUNT;
frame_pointer->rvector = (rhdtyp*)malloc(SIZEOF(rhdtyp));
memset(frame_pointer->rvector, 0, SIZEOF(rhdtyp));
symbinit();
/* Variables for supporting $ZSEARCH sorting and wildcard expansion */
TREF(zsearch_var) = lv_getslot(curr_symval);
TREF(zsearch_dir1) = lv_getslot(curr_symval);
TREF(zsearch_dir2) = lv_getslot(curr_symval);
LVVAL_INIT((TREF(zsearch_var)), curr_symval);
LVVAL_INIT((TREF(zsearch_dir1)), curr_symval);
LVVAL_INIT((TREF(zsearch_dir2)), curr_symval);
/* Initialize global pointer to control-C handler. Also used in iott_use */
ctrlc_handler_ptr = &ctrlc_handler;
io_init(IS_MUPIP_IMAGE); /* starts with nocenable for GT.M runtime, enabled for MUPIP */
if (!IS_MUPIP_IMAGE)
{
sig_init(generic_signal_handler, ctrlc_handler_ptr, suspsigs_handler, continue_handler);
atexit(gtm_exit_handler);
cenable(); /* cenable unless the environment indicates otherwise - 2 steps because this can report errors */
}
jobinterrupt_init();
getzdir();
dpzgbini();
zco_init();
/* a base addr of 0 indicates a gtm_init call from an rpc server */
if ((GTM_IMAGE == image_type) && (NULL != svec->base_addr))
jobchild_init();
else
{ /* Trigger enabled utilities will enable through here */
(TREF(dollar_zmode)).mvtype = MV_STR;
(TREF(dollar_zmode)).str.addr = other_mode_buf;
(TREF(dollar_zmode)).str.len = SIZEOF(other_mode_buf) -1;
}
svec->frm_ptr = (unsigned char *)frame_pointer;
dollar_ztrap.mvtype = MV_STR;
dollar_ztrap.str.len = SIZEOF(init_break);
dollar_ztrap.str.addr = (char *)init_break;
dollar_zstatus.mvtype = MV_STR;
dollar_zstatus.str.len = 0;
dollar_zstatus.str.addr = NULL;
ecode_init();
zyerror_init();
ztrap_form_init();
ztrap_new_init();
zdate_form_init(svec);
dollar_system_init(svec);
init_callin_functable();
gtm_env_xlate_init();
SET_LATCH_GLOBAL(&defer_latch, LOCK_AVAILABLE);
curr_pattern = pattern_list = &mumps_pattern;
pattern_typemask = mumps_pattern.typemask;
initialize_pattern_table();
ce_init(); /* initialize compiler escape processing */
/* Initialize local collating sequence */
TREF(transform) = TRUE;
lct = find_local_colltype();
if (lct != 0)
{
TREF(local_collseq) = ready_collseq(lct);
if (!TREF(local_collseq))
{
exi_condition = -ERR_COLLATIONUNDEF;
gtm_putmsg(VARLSTCNT(3) ERR_COLLATIONUNDEF, 1, lct);
exit(exi_condition);
}
} else
TREF(local_collseq) = 0;
prealloc_gt_timers();
gt_timers_add_safe_hndlrs();
for (i = 0; FNPC_MAX > i; i++)
{ /* Initialize cache structure for $Piece function */
(TREF(fnpca)).fnpcs[i].pcoffmax = &(TREF(fnpca)).fnpcs[i].pstart[FNPC_ELEM_MAX];
(TREF(fnpca)).fnpcs[i].indx = i;
}
(TREF(fnpca)).fnpcsteal = (TREF(fnpca)).fnpcs; /* Starting place to look for cache reuse */
(TREF(fnpca)).fnpcmax = &(TREF(fnpca)).fnpcs[FNPC_MAX - 1]; /* The last element */
/* Initialize zwrite subsystem. Better to do it now when we have storage to allocate than
* if we fail and storage allocation may not be possible. To that end, pretend we have
* seen alias acitivity so those structures are initialized as well.
*/
assert(FALSE == curr_symval->alias_activity);
curr_symval->alias_activity = TRUE;
lvzwr_init((enum zwr_init_types)0, (mval *)NULL);
curr_symval->alias_activity = FALSE;
if ((NULL != (TREF(mprof_env_gbl_name)).str.addr))
turn_tracing_on(TADR(mprof_env_gbl_name), TRUE, (TREF(mprof_env_gbl_name)).str.len > 0);
return;
}
void op_merge(void)
{
boolean_t found, check_for_null_subs, is_base_var;
lv_val *dst_lv;
mval *mkey, *value, *subsc;
int org_glvn1_keysz, org_glvn2_keysz, delta2, dollardata_src, dollardata_dst, sbs_depth;
unsigned char *ptr, *ptr2;
unsigned char buff[MAX_ZWR_KEY_SZ];
unsigned char nullcoll_src, nullcoll_dst;
zshow_out output;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
assert(MAX_STRLEN >= MAX_ZWR_KEY_SZ);
assert ((merge_args == (MARG1_LCL | MARG2_LCL)) ||
(merge_args == (MARG1_LCL | MARG2_GBL)) ||
(merge_args == (MARG1_GBL | MARG2_LCL)) ||
(merge_args == (MARG1_GBL | MARG2_GBL)));
assert(!lvzwrite_block || 0 == lvzwrite_block->curr_subsc);
/* Need to protect value from stpgcol */
PUSH_MV_STENT(MVST_MVAL);
value = &mv_chain->mv_st_cont.mvs_mval;
value->mvtype = 0; /* initialize mval in the M-stack in case stp_gcol gets called before value gets initialized below */
if (MARG2_IS_GBL(merge_args))
{ /* Need to protect mkey returned from gvcst_queryget from stpgcol */
PUSH_MV_STENT(MVST_MVAL);
mkey = &mv_chain->mv_st_cont.mvs_mval;
mkey->mvtype = 0; /* initialize mval in M-stack in case stp_gcol gets called before mkey gets initialized below */
gvname_env_restore(mglvnp->gblp[IND2]);
/* now $DATA will be done for gvn2. op_gvdata input parameters are set in the form of some GBLREF */
op_gvdata(value);
dollardata_src = MV_FORCE_INT(value);
if (0 == dollardata_src)
{ /* nothing in source global */
UNDO_ACTIVE_LV;
POP_MV_STENT(); /* value */
POP_MV_STENT(); /* mkey */
if (MARG1_IS_GBL(merge_args))
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
merge_args = 0; /* Must reset to zero to reuse the Global */
return;
}
if (NULL == TREF(gv_mergekey2))
{ /* We need to initialize gvn2 (right hand side). */
GVKEY_INIT(TREF(gv_mergekey2), DBKEYSIZE(MAX_KEY_SZ));
}
org_glvn1_keysz = mglvnp->gblp[IND1]->s_gv_currkey->end + 1;
org_glvn2_keysz = gv_currkey->end + 1;
(TREF(gv_mergekey2))->end = gv_currkey->end;
(TREF(gv_mergekey2))->prev = gv_currkey->prev;
memcpy((TREF(gv_mergekey2))->base, gv_currkey->base, gv_currkey->end + 1);
if (MARG1_IS_GBL(merge_args))
{ /*==================== MERGE ^gvn1=^gvn2 =====================*/
if (mglvnp->gblp[IND2]->s_gv_target->nct != mglvnp->gblp[IND1]->s_gv_target->nct)
rts_error(VARLSTCNT(1) ERR_NCTCOLLDIFF);
/* if self merge then NOOP*/
if (!merge_desc_check()) /* will not proceed if one is descendant of another */
{
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
POP_MV_STENT(); /* value */
merge_args = 0; /* Must reset to zero to reuse the Global */
return;
}
nullcoll_src = mglvnp->gblp[IND2]->s_gv_cur_region->std_null_coll;
nullcoll_dst = mglvnp->gblp[IND1]->s_gv_cur_region->std_null_coll;
if (1 == dollardata_src || 11 == dollardata_src)
{
found = op_gvget(value); /* value of ^glvn2 */
if (found)
{ /* SET ^gvn1=^gvn2 */
gvname_env_restore(mglvnp->gblp[IND1]);
op_gvput(value);
/* Note: If ^gvn1's null_sub=ALLOWEXISTING and say ^gvn1("")=^gvn,
* this will give NULL_SUBC error
*/
}
}
check_for_null_subs = (NEVER != mglvnp->gblp[IND2]->s_gv_cur_region->null_subs) &&
(ALWAYS != mglvnp->gblp[IND1]->s_gv_cur_region->null_subs);
/* Traverse descendant of ^gvn2 and copy into ^gvn1 */
for (; ;)
{
if (outofband)
{
gvname_env_restore(mglvnp->gblp[IND1]); /* naked indicator is restored into gv_currkey */
outofband_action(FALSE);
}
/* Restore last key under ^gvn2 we worked */
gvname_env_restore(mglvnp->gblp[IND2]);
assert(0 == gv_currkey->base[gv_currkey->end - 1] && 0 == gv_currkey->base[gv_currkey->end]);
/* following is an attempt to find immidiate right sibling */
gv_currkey->base[gv_currkey->end] = 1;
gv_currkey->base[gv_currkey->end + 1] = 0;
gv_currkey->base[gv_currkey->end + 2] = 0;
gv_currkey->end += 2;
/* Do atomic $QUERY and $GET of current glvn2:
* mkey is a mstr which contains $QUERY result in database format (So no conversion necessary)
* value is a mstr which contains $GET result
*/
if (!op_gvqueryget(mkey, value))
break;
assert(MV_IS_STRING(mkey));
if (mkey->str.len < org_glvn2_keysz)
break;
if (0 != *((unsigned char *)mkey->str.addr + (TREF(gv_mergekey2))->end - 1) ||
memcmp(mkey->str.addr, (TREF(gv_mergekey2))->base, (TREF(gv_mergekey2))->end - 1))
break; /* mkey is not under the sub-tree */
delta2 = mkey->str.len - org_glvn2_keysz; /* length increase of source key */
assert (0 < delta2);
/* Save the new source key for next iteration */
memcpy(mglvnp->gblp[IND2]->s_gv_currkey->base + org_glvn2_keysz - 2,
mkey->str.addr + org_glvn2_keysz - 2, delta2 + 2);
mglvnp->gblp[IND2]->s_gv_currkey->end = mkey->str.len - 1;
/* Create the destination key for this iteration (under ^glvn1) */
gvname_env_restore(mglvnp->gblp[IND1]);
if (gv_cur_region->max_key_size < org_glvn1_keysz + delta2)
ISSUE_GVSUBOFLOW_ERROR(gv_currkey);
assert(gv_currkey->end == org_glvn1_keysz - 1);
memcpy(gv_currkey->base + org_glvn1_keysz - 2,
mkey->str.addr + org_glvn2_keysz - 2, delta2 + 2);
gv_currkey->end = org_glvn1_keysz + delta2 - 1;
if (nullcoll_src != nullcoll_dst)
{
if (0 == nullcoll_dst)
{ /* Standard to GTM null subscript conversion*/
STD2GTMNULLCOLL((unsigned char *)gv_currkey->base + org_glvn1_keysz - 1,
delta2 - 1);
} else
{ /* GTM to standard null subscript conversion */
GTM2STDNULLCOLL((unsigned char *)gv_currkey->base + org_glvn1_keysz - 1,
delta2 - 1);
}
}
/* check null subscripts in destination key, note that we have already restored, destination global
* and curresponding region, key information
*/
if (check_for_null_subs)
{
ptr2 = gv_currkey->base + gv_currkey->end - 1;
for (ptr = gv_currkey->base + org_glvn1_keysz - 2; ptr < ptr2; )
{
if (KEY_DELIMITER == *ptr++ && KEY_DELIMITER == *(ptr + 1) &&
(0 == gv_cur_region->std_null_coll ? (STR_SUB_PREFIX == *ptr) :
(SUBSCRIPT_STDCOL_NULL == *ptr)))
/* Note: For sgnl_gvnulsubsc/rts_error
* we do not restore proper naked indicator.
* The standard states that the effect of a MERGE command
* on the naked indicator is that the naked indicator will be changed
* as if a specific SET command would have been executed.
* The standard also states that the effect on the naked indicator
* will only take be visible after the MERGE command has completed.
* So, if there is an error during the execution of a MERGE command,
* the standard allows the naked indicator to reflect any intermediate
* state. This provision was made intentionally, otherwise it would
* have become nearly impossible to create a fully standard
* implementation. : From Ed de Moel : 2/1/2
*/
sgnl_gvnulsubsc();
}
}
/* Now put value of ^glvn2 descendant into corresponding descendant under ^glvn1 */
op_gvput(value);
}
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
} else
{ /*==================== MERGE lvn1=^gvn2 =====================*/
assert(MARG1_IS_LCL(merge_args));
assert(mglvnp->lclp[IND1]);
/* Need to protect subsc created from global variable subscripts from stpgcol */
PUSH_MV_STENT(MVST_MVAL);
subsc = &mv_chain->mv_st_cont.mvs_mval;
/* Restore ^gvn2 we will work */
gvname_env_save(mglvnp->gblp[IND2]);
if (1 == dollardata_src || 11 == dollardata_src)
{ /* SET lvn1=^gvn2 */
found = op_gvget(value);
if (found)
mglvnp->lclp[IND1]->v = *value;
}
for (; ;)
{
if (outofband)
{
gvname_env_restore(mglvnp->gblp[IND2]); /* naked indicator is restored into gv_currkey */
outofband_action(FALSE);
}
assert(0 == gv_currkey->base[gv_currkey->end - 1] && 0 == gv_currkey->base[gv_currkey->end]);
/* following is an attempt to find immidiate right sibling */
gv_currkey->base[gv_currkey->end] = 1;
gv_currkey->base[gv_currkey->end + 1] = 0;
gv_currkey->base[gv_currkey->end + 2] = 0;
gv_currkey->end += 2;
/* Do $QUERY and $GET of current glvn2. Result will be in mkey and value respectively.
* mkey->str contains data as database format. So no conversion necessary
*/
if (!op_gvqueryget(mkey, value))
break;
if (mkey->str.len < (TREF(gv_mergekey2))->end + 1)
break;
ptr = (unsigned char *)mkey->str.addr + (TREF(gv_mergekey2))->end - 1;
if (0 != *ptr || memcmp(mkey->str.addr, (TREF(gv_mergekey2))->base, (TREF(gv_mergekey2))->end - 1))
break;
assert(MV_IS_STRING(mkey));
delta2 = mkey->str.len - org_glvn2_keysz; /* length increase of key */
assert (0 < delta2);
/* Create next key for ^glvn2 */
memcpy(gv_currkey->base + org_glvn2_keysz - 2, mkey->str.addr + org_glvn2_keysz - 2, delta2 + 2);
gv_currkey->end = mkey->str.len - 1;
/* Now add subscripts to create the entire key */
dst_lv = mglvnp->lclp[IND1];
is_base_var = LV_IS_BASE_VAR(dst_lv);
ptr = (unsigned char *)gv_currkey->base + org_glvn2_keysz - 1;
assert(*ptr);
do
{
LV_SBS_DEPTH(dst_lv, is_base_var, sbs_depth);
if (MAX_LVSUBSCRIPTS <= sbs_depth)
rts_error(VARLSTCNT(3) ERR_MERGEINCOMPL, 0, ERR_MAXNRSUBSCRIPTS);
ptr2 = gvsub2str(ptr, buff, FALSE);
subsc->mvtype = MV_STR;
subsc->str.addr = (char *)buff;
subsc->str.len = INTCAST(ptr2 - buff);
s2pool(&subsc->str);
dst_lv = op_putindx(VARLSTCNT(2) dst_lv, subsc);
while (*ptr++); /* skip to start of next subscript */
is_base_var = FALSE;
} while (*ptr);
/* We created the key. Pre-process the node in case a container is being replaced,
* then assign the value directly. Note there is no need to worry about MV_ALIASCONT
* propagation since the source in this case is a global var.
*/
DECR_AC_REF(dst_lv, TRUE);
dst_lv->v = *value;
}
gvname_env_restore(mglvnp->gblp[IND2]); /* naked indicator is restored into gv_currkey */
POP_MV_STENT(); /* subsc */
}
POP_MV_STENT(); /* mkey */
} else
{ /* source is local */
op_fndata(mglvnp->lclp[IND2], value);
dollardata_src = MV_FORCE_INT(value);
if (0 == dollardata_src)
{
UNDO_ACTIVE_LV;
POP_MV_STENT(); /* value */
if (MARG1_IS_GBL(merge_args))
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
merge_args = 0; /* Must reset to zero to reuse the Global */
return;
}
/* not memsetting output to 0 here can cause garbage value of output.out_var.lv.child which in turn can
* cause a premature return from lvzwr_var resulting in op_merge() returning without having done the merge.
*/
memset(&output, 0, SIZEOF(output));
if (MARG1_IS_LCL(merge_args))
{ /*==================== MERGE lvn1=lvn2 =====================*/
assert(mglvnp->lclp[IND1]);
/* if self merge then NOOP */
if (!merge_desc_check()) /* will not proceed if one is descendant of another */
{
POP_MV_STENT(); /* value */
merge_args = 0; /* Must reset to zero to reuse the Global */
return;
}
output.buff = (char *)buff;
output.ptr = output.buff;
output.out_var.lv.lvar = mglvnp->lclp[IND1];
zwr_output = &output;
lvzwr_init(zwr_patrn_mident, &mglvnp->lclp[IND2]->v);
lvzwr_arg(ZWRITE_ASTERISK, 0, 0);
lvzwr_var(mglvnp->lclp[IND2], 0);
/* assert that destination got all data of the source and its descendants */
DEBUG_ONLY(op_fndata(mglvnp->lclp[IND1], value));
DEBUG_ONLY(dollardata_dst = MV_FORCE_INT(value));
assert((dollardata_src & dollardata_dst) == dollardata_src);
} else
{ /*==================== MERGE ^gvn1=lvn2 =====================*/
assert(MARG1_IS_GBL(merge_args) && MARG2_IS_LCL(merge_args));
gvname_env_save(mglvnp->gblp[IND1]);
output.buff = (char *)buff;
output.ptr = output.buff;
output.out_var.gv.end = gv_currkey->end;
output.out_var.gv.prev = gv_currkey->prev;
zwr_output = &output;
lvzwr_init(zwr_patrn_mident, &mglvnp->lclp[IND2]->v);
lvzwr_arg(ZWRITE_ASTERISK, 0, 0);
lvzwr_var(mglvnp->lclp[IND2], 0);
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
}
}
POP_MV_STENT(); /* value */
merge_args = 0; /* Must reset to zero to reuse the Global */
}
