82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
|
/****************************************************************
|
||
|
|
* *
|
||
|
|
* Copyright 2001, 2010 Fidelity Information Services, Inc *
|
||
|
|
* *
|
||
|
|
* This source code contains the intellectual property *
|
||
|
|
* of its copyright holder(s), and is made available *
|
||
|
|
* under a license. If you do not know the terms of *
|
||
|
|
* the license, please stop and do not read further. *
|
||
|
|
* *
|
||
|
|
****************************************************************/
|
||
|
|
|
||
|
|
#include "mdef.h"
|
||
|
|
|
||
|
|
#include <signal.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
#include "gdsroot.h"
|
||
|
|
#include "gtm_facility.h"
|
||
|
|
#include "fileinfo.h"
|
||
|
|
#include "gdsbt.h"
|
||
|
|
#include "gdsfhead.h"
|
||
|
|
#include "filestruct.h"
|
||
|
|
#include "gtmsiginfo.h"
|
||
|
|
#include "mutex.h"
|
||
|
|
#include "deferred_signal_handler.h"
|
||
|
|
#include "have_crit.h"
|
||
|
|
#include "caller_id.h"
|
||
|
|
|
||
|
|
GBLREF short crash_count;
|
||
|
|
GBLREF volatile int4 crit_count;
|
||
|
|
GBLREF uint4 process_id;
|
||
|
|
GBLREF volatile int suspend_status;
|
||
|
|
GBLREF node_local_ptr_t locknl;
|
||
|
|
GBLREF volatile int4 gtmMallocDepth; /* Recursion indicator */
|
||
|
|
GBLREF boolean_t hold_onto_locks;
|
||
|
|
|
||
|
|
void rel_crit(gd_region *reg)
|
||
|
|
{
|
||
|
|
unix_db_info *udi;
|
||
|
|
sgmnt_addrs *csa;
|
||
|
|
enum cdb_sc status;
|
||
|
|
|
||
|
|
error_def(ERR_CRITRESET);
|
||
|
|
error_def(ERR_DBCCERR);
|
||
|
|
|
||
|
|
udi = FILE_INFO(reg);
|
||
|
|
csa = &udi->s_addrs;
|
||
|
|
assert(!hold_onto_locks && !csa->hold_onto_crit);
|
||
|
|
if (csa->now_crit)
|
||
|
|
{
|
||
|
|
assert(0 == crit_count);
|
||
|
|
crit_count++; /* prevent interrupts */
|
||
|
|
assert(csa->nl->in_crit == process_id || csa->nl->in_crit == 0);
|
||
|
|
CRIT_TRACE(crit_ops_rw); /* see gdsbt.h for comment on placement */
|
||
|
|
csa->nl->in_crit = 0;
|
||
|
|
DEBUG_ONLY(locknl = csa->nl;) /* for DEBUG_ONLY LOCK_HIST macro */
|
||
|
|
status = mutex_unlockw(reg, crash_count);
|
||
|
|
DEBUG_ONLY(locknl = NULL;) /* restore "locknl" to default value */
|
||
|
|
if (status != cdb_sc_normal)
|
||
|
|
{
|
||
|
|
csa->now_crit = FALSE;
|
||
|
|
crit_count = 0;
|
||
|
|
if (status == cdb_sc_critreset)
|
||
|
|
rts_error(VARLSTCNT(4) ERR_CRITRESET, 2, REG_LEN_STR(reg));
|
||
|
|
else
|
||
|
|
{
|
||
|
|
assert(status == cdb_sc_dbccerr);
|
||
|
|
rts_error(VARLSTCNT(4) ERR_DBCCERR, 2, REG_LEN_STR(reg));
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
crit_count = 0;
|
||
|
|
} else
|
||
|
|
{
|
||
|
|
CRIT_TRACE(crit_ops_nocrit);
|
||
|
|
}
|
||
|
|
/* Now that crit for THIS region is released, check if deferred signal/exit handling can be done and if so do it */
|
||
|
|
DEFERRED_EXIT_HANDLING_CHECK;
|
||
|
|
if ((DEFER_SUSPEND == suspend_status) && OK_TO_INTERRUPT)
|
||
|
|
suspend();
|
||
|
|
}
|