fis-gtm/sr_port/jnl_write_ztp_logical.c

85 lines
2.8 KiB
C

/****************************************************************
* *
* Copyright 2003, 2011 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 "gtm_inet.h"
#ifdef VMS
#include <descrip.h> /* Required for gtmsource.h */
#endif
#include "gtm_time.h"
#include "gdsroot.h"
#include "gtm_facility.h"
#include "fileinfo.h"
#include "gdsbt.h"
#include "gdsblk.h"
#include "gdsfhead.h"
#include "filestruct.h"
#include "jnl.h"
#include "jnl_write.h"
#include "repl_msg.h"
#include "gtmsource.h"
#include "iosp.h"
#ifdef DEBUG
#include "jnl_typedef.h"
#endif
GBLREF jnl_fence_control jnl_fence_ctl;
GBLREF jnlpool_ctl_ptr_t temp_jnlpool_ctl;
GBLREF jnl_gbls_t jgbl;
GBLREF seq_num seq_num_zero;
GBLREF trans_num local_tn; /* transaction number for THIS PROCESS */
GBLREF uint4 process_id;
void jnl_write_ztp_logical(sgmnt_addrs *csa, jnl_format_buffer *jfb)
{
struct_jrec_upd *jrec;
volatile seq_num temp_seqno;
GTMCRYPT_ONLY(
struct_jrec_upd *jrec_alt;
)
jnl_private_control *jpc;
/* If REPL_WAS_ENABLED(csa) is TRUE, then we would not have gone through the code that initializes
* jgbl.gbl_jrec_time or jpc->pini_addr. But in this case, we are not writing the journal record
* to the journal buffer or journal file but write it only to the journal pool from where it gets
* sent across to the update process that does not care about these fields so it is ok to leave them as is.
*/
jpc = csa->jnl;
assert((0 != jpc->pini_addr) || REPL_WAS_ENABLED(csa));
assert(jgbl.gbl_jrec_time || REPL_WAS_ENABLED(csa));
assert(csa->now_crit);
assert(IS_SET_KILL_ZKILL_ZTRIG(jfb->rectype));
assert(IS_ZTP(jfb->rectype));
jrec = (struct_jrec_upd *)jfb->buff;
jrec->prefix.pini_addr = (0 == jpc->pini_addr) ? JNL_HDR_LEN : jpc->pini_addr;
jrec->prefix.tn = csa->ti->curr_tn;
jrec->prefix.time = jgbl.gbl_jrec_time;
jrec->prefix.checksum = jfb->checksum;
temp_seqno = temp_jnlpool_ctl->jnl_seqno;
if (QWEQ(jnl_fence_ctl.token, seq_num_zero))
{ /* generate token once after op_ztstart and use for all its mini-transactions
* jnl_fence_ctl.token is set to seq_num_zero in op_ztstart */
if (REPL_ALLOWED(csa))
QWASSIGN(jnl_fence_ctl.token, temp_seqno);
else
{
TOKEN_SET(&jnl_fence_ctl.token, local_tn, process_id);
}
}
assert(0 != jnl_fence_ctl.token);
jrec->token_seq.token = jnl_fence_ctl.token;
jrec->strm_seqno = 0; /* strm_seqno is only for replication & ZTCOM does not work with replic */
GTMCRYPT_ONLY(assert(!REPL_ALLOWED(csa));)
JNL_WRITE_APPROPRIATE(csa, jpc, jfb->rectype, (jnl_record *)jrec, NULL, jfb);
}