102 lines
4.6 KiB
C
102 lines
4.6 KiB
C
/****************************************************************
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* *
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* Copyright 2006, 2013 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gtm_string.h"
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#include "gtm_time.h"
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#include "gtm_unistd.h"
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#include "gdsroot.h"
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#include "gdsbt.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsfhead.h"
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#include "filestruct.h"
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#include "repl_msg.h"
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#include "gtmsource.h"
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#include "repl_instance.h"
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#include "jnl.h"
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GBLREF jnlpool_addrs jnlpool;
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GBLREF uint4 process_id;
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GBLREF jnl_gbls_t jgbl;
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/* This function is called primarily to append a new histinfo record to the replication instance file by one of the following
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* 1) MUPIP REPLIC -SOURCE -START -ROOTPRIMARY command (after forking the child source server) if it created the journal pool.
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* 2) MUPIP REPLIC -SOURCE -ACTIVATE -ROOTPRIMARY command if this is a propagating primary to root primary transition.
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* In addition, this function also initializes the "lms_group_info" field in the instance file (from the "inst_info" field)
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* if the current value is NULL.
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*/
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void gtmsource_rootprimary_init(seq_num start_seqno)
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{
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unix_db_info *udi;
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repl_histinfo histinfo;
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boolean_t was_crit;
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udi = FILE_INFO(jnlpool.jnlpool_dummy_reg);
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assert(NULL != jnlpool.repl_inst_filehdr);
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/* Update journal pool fields to reflect this is a root primary startup and updates are enabled */
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assert(!udi->s_addrs.hold_onto_crit || jgbl.onlnrlbk);
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was_crit = udi->s_addrs.now_crit;
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if (!was_crit)
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grab_lock(jnlpool.jnlpool_dummy_reg, TRUE, ASSERT_NO_ONLINE_ROLLBACK);
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jnlpool.repl_inst_filehdr->root_primary_cycle++;
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jnlpool.repl_inst_filehdr->was_rootprimary = TRUE;
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assert(start_seqno >= jnlpool.jnlpool_ctl->start_jnl_seqno);
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assert(start_seqno == jnlpool.jnlpool_ctl->jnl_seqno);
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jnlpool.repl_inst_filehdr->jnl_seqno = start_seqno;
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assert(jgbl.onlnrlbk || jnlpool.jnlpool_ctl->upd_disabled);
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if (!jgbl.onlnrlbk)
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jnlpool.jnlpool_ctl->upd_disabled = FALSE;
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if (IS_REPL_INST_UUID_NULL(jnlpool.repl_inst_filehdr->lms_group_info))
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{ /* This is the first time this instance is being brought up either as a root primary or as a propagating
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* primary. Initialize the "lms_group_info" fields in the instance file header in journal pool shared memory.
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* They will be flushed to the instance file as part of the "repl_inst_histinfo_add -> repl_inst_flush_filehdr"
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* function invocation below.
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*/
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assert('\0' == jnlpool.repl_inst_filehdr->lms_group_info.created_nodename[0]);
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assert('\0' == jnlpool.repl_inst_filehdr->lms_group_info.this_instname[0]);
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assert(!jnlpool.repl_inst_filehdr->lms_group_info.creator_pid);
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jnlpool.repl_inst_filehdr->lms_group_info = jnlpool.repl_inst_filehdr->inst_info;
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assert('\0' != jnlpool.repl_inst_filehdr->lms_group_info.created_nodename[0]);
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DBG_CHECK_CREATED_NODENAME(jnlpool.repl_inst_filehdr->lms_group_info.created_nodename);
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assert('\0' != jnlpool.repl_inst_filehdr->lms_group_info.this_instname[0]);
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assert(jnlpool.repl_inst_filehdr->lms_group_info.created_time);
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assert(jnlpool.repl_inst_filehdr->lms_group_info.creator_pid);
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}
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/* Initialize histinfo fields */
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memcpy(histinfo.root_primary_instname, jnlpool.repl_inst_filehdr->inst_info.this_instname, MAX_INSTNAME_LEN - 1);
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histinfo.root_primary_instname[MAX_INSTNAME_LEN - 1] = '\0';
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assert('\0' != histinfo.root_primary_instname[0]);
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histinfo.start_seqno = start_seqno;
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assert(jnlpool.jnlpool_ctl->strm_seqno[0] == jnlpool.repl_inst_filehdr->strm_seqno[0]);
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assert(jnlpool.repl_inst_filehdr->is_supplementary || (0 == jnlpool.jnlpool_ctl->strm_seqno[0]));
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histinfo.strm_seqno = (!jnlpool.repl_inst_filehdr->is_supplementary) ? 0 : jnlpool.jnlpool_ctl->strm_seqno[0];
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histinfo.root_primary_cycle = jnlpool.repl_inst_filehdr->root_primary_cycle;
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assert(process_id == getpid());
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histinfo.creator_pid = process_id;
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JNL_SHORT_TIME(histinfo.created_time);
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histinfo.strm_index = 0;
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histinfo.history_type = HISTINFO_TYPE_NORMAL;
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NULL_INITIALIZE_REPL_INST_UUID(histinfo.lms_group);
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/* The following fields will be initialized in the "repl_inst_histinfo_add" function call below.
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* histinfo.histinfo_num
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* histinfo.prev_histinfo_num
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* histinfo.last_histinfo_num[]
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*/
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/* Add the histinfo record to the instance file and flush the changes in the journal pool to the file header */
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repl_inst_histinfo_add(&histinfo);
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if (!was_crit)
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rel_lock(jnlpool.jnlpool_dummy_reg);
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}
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