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/****************************************************************
* *
* Copyright (c) 2001-2017 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* 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"
#if !defined(__MVS__) && !defined(VMS)
#include <sys/param.h>
#endif
#include <sys/time.h>
#include <errno.h>
#include "gtm_fcntl.h"
#include "gtm_unistd.h"
#include "gtm_inet.h"
#include <sys/sem.h>
#include "gdsroot.h"
#include "gdsblk.h"
#include "gtm_facility.h"
#include "fileinfo.h"
#include "gdsbt.h"
#include "gdsfhead.h"
#include "filestruct.h"
#include "gtmrecv.h"
#include "repl_msg.h"
#include "gtmsource.h"
#include "jnl.h"
#include "repl_log.h"
#include "repl_sem.h"
#include "mupip_exit.h"
#include "dpgbldir.h"
#include "read_db_files_from_gld.h"
#include "updproc.h"
#include "repl_dbg.h"
GBLREF int pool_init;
GBLREF gd_addr *gd_header;
GBLREF recvpool_addrs recvpool;
GBLREF jnlpool_addrs_ptr_t jnlpool;
GBLREF FILE *updproc_log_fp;
error_def(ERR_RECVPOOLSETUP);
error_def(ERR_TEXT);
error_def(ERR_UPDATEFILEOPEN);
int updproc_init(gld_dbname_list **gld_db_files , seq_num *start_jnl_seqno)
{
mval v;
int save_errno;
uint4 log_file_len;
sgmnt_addrs *csa;
sgmnt_data_ptr_t csd;
gld_dbname_list *curr;
/* Do jnlpool_init ahead of recvpool_init so in case we have a ftok_counter_halted situation we have
* jnlpool->repl_inst_filehdr initialized to set it to TRUE. This is later relied upon by "gtmsource_shutdown"
* or "gtmrecv_shutdown" when they do the "ftok_sem_release".
*/
jnlpool_init((jnlpool_user)GTMPROC, (boolean_t)FALSE, (boolean_t *)NULL, NULL);
recvpool_init(UPDPROC, FALSE);
/* The log file can be initialized only after having attached to the receive pool as the update process log file name
* is derived from the receiver server log file name which is in turn available only in the receive pool.
*/
upd_log_init(UPDPROC);
/* Lock the update process count semaphore. Its value should be atmost 1. The call to grab the update process
* COUNT semaphore can be done only after attaching to the receive pool as that is what initializes the semaphore
* set id which is in turn used by the "grab_sem_immediate" function.
*/
if (0 != grab_sem_immediate(RECV, UPD_PROC_COUNT_SEM))
{
save_errno = errno;
if (REPL_SEM_NOT_GRABBED)
return UPDPROC_EXISTS;
else
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(7) ERR_RECVPOOLSETUP, 0, ERR_TEXT, 2,
RTS_ERROR_LITERAL("Receive pool semop error"), save_errno);
}
repl_log(updproc_log_fp, TRUE, TRUE, "Attached to existing jnlpool with shmid = [%d] and semid = [%d]\n",
jnlpool->repl_inst_filehdr->jnlpool_shmid, jnlpool->repl_inst_filehdr->jnlpool_semid);
repl_log(updproc_log_fp, TRUE, TRUE, "Attached to existing recvpool with shmid = [%d] and semid = [%d]\n",
jnlpool->repl_inst_filehdr->recvpool_shmid, jnlpool->repl_inst_filehdr->recvpool_semid);
/* Note: dpzgbini() is already called as part of gtm_startup which in turn is invoked by init_gtm.
* So no need to do this initialization.
*/
gvinit(); /* get the desired global directory */
*gld_db_files = read_db_files_from_gld(gd_header);/* read all the database files to be opened in this global directory */
if (!updproc_open_files(gld_db_files, start_jnl_seqno)) /* open and initialize all regions */
mupip_exit(ERR_UPDATEFILEOPEN);
for (curr = *gld_db_files; NULL != curr; curr = curr->next)
{
csa = &FILE_INFO(curr->gd)->s_addrs;
csd = csa->hdr;
csa->n_pre_read_trigger = (int)((csd->n_bts * (float)csd->reserved_for_upd / csd->avg_blks_per_100gbl) *
csd->pre_read_trigger_factor / 100.0);
REPL_DPRINT2("csa->nl->n_pre_read_trigger = %x", csa->n_pre_read_trigger);
}
return UPDPROC_STARTED;
}
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