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/****************************************************************
* *
* Copyright (c) 2013-2016 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* 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 "gdsroot.h"
#include "gtm_facility.h"
#include "fileinfo.h"
#include "gdsbt.h"
#include "gdsfhead.h"
#include "filestruct.h"
#include "gds_rundown.h"
#include "jnl.h"
#include "gtm_semutils.h"
#include "do_semop.h"
#include "add_inter.h"
#include "ftok_sems.h"
#include <sys/sem.h>
#include "wcs_clean_dbsync.h"
#include "interlock.h"
#include "wbox_test_init.h"
#include "gds_rundown_err_cleanup.h"
GBLREF gd_region *gv_cur_region;
GBLREF jnl_gbls_t jgbl;
GBLREF uint4 process_id;
error_def(ERR_TEXT);
error_def(ERR_DBRNDWN);
void gds_rundown_err_cleanup(boolean_t have_standalone_access)
{
pid_t sem_pid;
int semop_res;
unix_db_info *udi;
sgmnt_addrs *csa;
boolean_t cancelled_dbsync_timer;
/* Here, we can not rely on the validity of csa->hdr because this function can be triggered anywhere in
* gds_rundown().Because we don't have access to file header, we can not know if counters are disabled so we go by our best
* guess, not disabled, during cleanup.
*/
udi = FILE_INFO(gv_cur_region);
csa = &udi->s_addrs;
/* We got here on an error and are going to close the region. Cancel any pending flush timer for this region by this task*/
CANCEL_DB_TIMERS(gv_cur_region, csa, cancelled_dbsync_timer);
if (csa->now_crit) /* Might hold crit if wcs_flu or other failure */
{
assert(!csa->hold_onto_crit || jgbl.onlnrlbk);
if (NULL != csa->nl)
rel_crit(gv_cur_region); /* also sets csa->now_crit to FALSE */
else
csa->now_crit = FALSE;
}
if (!have_standalone_access)
{
if (udi->counter_acc_incremented)
{
if (0 != (semop_res = do_semop(udi->semid, DB_COUNTER_SEM, -DB_COUNTER_SEM_INCR, SEM_UNDO | IPC_NOWAIT)))
send_msg_csa(CSA_ARG(csa) VARLSTCNT(9) ERR_CRITSEMFAIL, 2, DB_LEN_STR(gv_cur_region),
ERR_TEXT, 2, RTS_ERROR_TEXT("Error decreasing access semaphore counter"), semop_res);
udi->counter_acc_incremented = FALSE;
}
if (udi->grabbed_access_sem)
{ /* release the access control semaphore, if you hold it */
sem_pid = semctl(udi->semid, 0, GETPID);
assert(sem_pid == process_id);
if (0 != (semop_res = do_semop(udi->semid, DB_CONTROL_SEM, -1, SEM_UNDO | IPC_NOWAIT)))
send_msg_csa(CSA_ARG(csa) VARLSTCNT(9) ERR_CRITSEMFAIL, 2, DB_LEN_STR(gv_cur_region),
ERR_TEXT, 2, RTS_ERROR_TEXT("Error releasing access semaphore"), semop_res);
udi->grabbed_access_sem = FALSE;
}
}
if (udi->grabbed_ftok_sem)
{ /* Decrease counter and release ftok */
assert(!have_standalone_access);
/* See gv_rundown.c comment for why ftok_sem_release 2nd parameter is FALSE below */
ftok_sem_release(gv_cur_region, FALSE, TRUE);
} else if (udi->counter_ftok_incremented) /* Just decrease ftok counter */
{
if (0 != (semop_res = do_semop(udi->ftok_semid, DB_COUNTER_SEM, -DB_COUNTER_SEM_INCR, SEM_UNDO | IPC_NOWAIT)))
send_msg_csa(CSA_ARG(csa) VARLSTCNT(9) ERR_CRITSEMFAIL, 2, DB_LEN_STR(gv_cur_region),
ERR_TEXT, 2, RTS_ERROR_TEXT("Error decreasing ftok semaphore counter"), semop_res);
udi->counter_ftok_incremented = FALSE;
}
gv_cur_region->open = FALSE;
csa->nl = NULL;
REMOVE_CSA_FROM_CSADDRSLIST(csa); /* remove "csa" from list of open regions (cs_addrs_list) */
send_msg_csa(CSA_ARG(NULL) VARLSTCNT(4) ERR_DBRNDWN, 2, REG_LEN_STR(gv_cur_region));
}
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