78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/****************************************************************
|
|
* *
|
|
* Copyright 2001, 2012 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 "gdsroot.h"
|
|
#include "gdskill.h"
|
|
#include "gtm_facility.h"
|
|
#include "fileinfo.h"
|
|
#include "gdsbt.h"
|
|
#include "gdsfhead.h"
|
|
#include "gdsblk.h"
|
|
#include "gdscc.h"
|
|
#include "filestruct.h"
|
|
#include "jnl.h"
|
|
#include "t_begin_crit.h"
|
|
#include "longset.h" /* needed for cws_insert.h */
|
|
#include "hashtab_int4.h" /* needed for cws_insert.h */
|
|
#include "cws_insert.h"
|
|
|
|
GBLDEF srch_hist dummy_hist;
|
|
|
|
GBLREF gd_region *gv_cur_region;
|
|
GBLREF jnl_format_buffer *non_tp_jfb_ptr;
|
|
GBLREF sgmnt_addrs *cs_addrs;
|
|
GBLREF trans_num start_tn;
|
|
GBLREF uint4 t_err;
|
|
GBLREF unsigned char cw_set_depth;
|
|
GBLREF unsigned int t_tries;
|
|
GBLREF uint4 update_trans;
|
|
GBLREF boolean_t write_after_image;
|
|
GBLREF volatile int4 fast_lock_count;
|
|
|
|
void t_begin_crit(uint4 err) /* err - error code for current gvcst_routine */
|
|
{
|
|
boolean_t was_crit;
|
|
DCL_THREADGBL_ACCESS;
|
|
|
|
SETUP_THREADGBL_ACCESS;
|
|
CWS_RESET;
|
|
start_tn = cs_addrs->ti->curr_tn;
|
|
cw_set_depth = 0;
|
|
t_tries = CDB_STAGNATE;
|
|
/* since this is mainline code and we know fast_lock_count should be 0 at this point reset it just in case it is not.
|
|
* having fast_lock_count non-zero will defer the database flushing logic and other critical parts of the system.
|
|
* hence this periodic reset at the beginning of each transaction.
|
|
*/
|
|
assert(0 == fast_lock_count);
|
|
fast_lock_count = 0;
|
|
t_err = err;
|
|
if (non_tp_jfb_ptr)
|
|
non_tp_jfb_ptr->record_size = 0; /* re-initialize it to 0 since TOTAL_NONTPJNL_REC_SIZE macro uses it */
|
|
/* the only currently known callers of this routine are DSE and MUPIP RECOVER (mur_put_aimg_rec.c).
|
|
* all of them set "write_after_image" to TRUE. hence the assert below.
|
|
*/
|
|
assert(write_after_image);
|
|
update_trans = UPDTRNS_DB_UPDATED_MASK;
|
|
was_crit = cs_addrs->now_crit;
|
|
assert(!was_crit || cs_addrs->hold_onto_crit);
|
|
if (!was_crit)
|
|
{ /* We are going to grab_crit. If csa->nl->wc_blocked is set to TRUE, we will end up calling wcs_recover as part of
|
|
* grab_crit. Set variable to indicate it is ok to do so even though t_tries is CDB_STAGNATE since we are not
|
|
* in the middle of any transaction.
|
|
*/
|
|
DEBUG_ONLY(TREF(ok_to_call_wcs_recover) = TRUE;)
|
|
grab_crit(gv_cur_region);
|
|
DEBUG_ONLY(TREF(ok_to_call_wcs_recover) = FALSE;)
|
|
}
|
|
}
|