fis-gtm/sr_port/jnl_write_logical.c

99 lines
3.6 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 "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"
#include "jnl_get_checksum.h"
#ifdef DEBUG
#include "jnl_typedef.h"
#endif
GBLREF jnl_fence_control jnl_fence_ctl;
GBLREF uint4 dollar_tlevel;
GBLREF jnlpool_ctl_ptr_t temp_jnlpool_ctl;
GBLREF jnl_gbls_t jgbl;
GBLREF seq_num seq_num_zero;
/* This called for TP and non-TP, but not for ZTP */
void jnl_write_logical(sgmnt_addrs *csa, jnl_format_buffer *jfb, uint4 com_csum)
{
struct_jrec_upd *jrec;
struct_jrec_null *jrec_null;
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_ZTWORM(jfb->rectype) || (JRT_NULL == jfb->rectype));
assert(!IS_ZTP(jfb->rectype));
jrec = (struct_jrec_upd *)jfb->buff;
assert(OFFSETOF(struct_jrec_null, prefix) == OFFSETOF(struct_jrec_upd, prefix));
assert(SIZEOF(jrec_null->prefix) == SIZEOF(jrec->prefix));
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;
/* t_end/tp_tend/mur_output_record has already set token/jnl_seqno into jnl_fence_ctl.token */
assert((0 != jnl_fence_ctl.token) || (!dollar_tlevel && !jgbl.forw_phase_recovery && !REPL_ENABLED(csa))
|| (!dollar_tlevel && jgbl.forw_phase_recovery && (repl_open != csa->hdr->intrpt_recov_repl_state)));
assert(OFFSETOF(struct_jrec_null, jnl_seqno) == OFFSETOF(struct_jrec_upd, token_seq));
assert(SIZEOF(jrec_null->jnl_seqno) == SIZEOF(jrec->token_seq));
jrec->token_seq.token = jnl_fence_ctl.token;
assert(OFFSETOF(struct_jrec_null, strm_seqno) == OFFSETOF(struct_jrec_upd, strm_seqno));
assert(SIZEOF(jrec_null->strm_seqno) == SIZEOF(jrec->strm_seqno));
jrec->strm_seqno = jnl_fence_ctl.strm_seqno;
/*update checksum below*/
if(JRT_NULL != jrec->prefix.jrec_type)
{
COMPUTE_LOGICAL_REC_CHECKSUM(jfb->checksum, jrec, com_csum, jrec->prefix.checksum);
}
else
jrec->prefix.checksum = compute_checksum(INIT_CHECKSUM_SEED, (uint4 *)jrec, SIZEOF(struct_jrec_null));
# ifdef GTM_CRYPT
if (REPL_ALLOWED(csa))
{
jrec_alt = (struct_jrec_upd *)jfb->alt_buff;
jrec_alt->prefix = jrec->prefix;
jrec_alt->token_seq = jrec->token_seq;
jrec_alt->strm_seqno = jrec->strm_seqno;
jrec_alt->num_participants = jrec->num_participants;
}
# endif
JNL_WRITE_APPROPRIATE(csa, jpc, jfb->rectype, (jnl_record *)jrec, NULL, jfb);
}