61 lines
2.5 KiB
C
61 lines
2.5 KiB
C
/****************************************************************
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* *
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* Copyright 2006, 2010 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 "repl_instance.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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GBLREF jnlpool_addrs jnlpool;
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/* This function is called primarily to append a new triple 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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*/
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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_triple triple;
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udi = FILE_INFO(jnlpool.jnlpool_dummy_reg);
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assert(udi->grabbed_ftok_sem);
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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); /* this ensures we can safely do unconditional grab_lock and rel_lock */
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grab_lock(jnlpool.jnlpool_dummy_reg);
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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(jnlpool.jnlpool_ctl->upd_disabled);
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jnlpool.jnlpool_ctl->upd_disabled = FALSE;
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rel_lock(jnlpool.jnlpool_dummy_reg);
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/* Initialize triple fields */
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memset(&triple, 0, SIZEOF(repl_triple));
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memcpy(triple.root_primary_instname, jnlpool.repl_inst_filehdr->this_instname, MAX_INSTNAME_LEN - 1);
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assert('\0' != triple.root_primary_instname[0]);
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triple.start_seqno = start_seqno;
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triple.root_primary_cycle = jnlpool.repl_inst_filehdr->root_primary_cycle;
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triple.rcvd_from_instname[0] = '\0'; /* redundant due to the memset above but done for completeness of the initialization */
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/* Add the triple to the instance file and flush the changes in the journal pool to the file header */
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repl_inst_triple_add(&triple);
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}
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