104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
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/****************************************************************
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* *
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* Copyright 2010, 2011 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 "gdsdbver.h"
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#include "gdsroot.h"
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#include "gdsbt.h"
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#include "gdsfhead.h"
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#include "filestruct.h"
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#include "jnl.h"
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#include "iosp.h"
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#include "repl_sp.h"
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#include "gtmio.h"
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#include "gtmimagename.h"
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#include "wbox_test_init.h"
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#include "gtcm_jnl_switched.h"
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GBLREF boolean_t is_src_server;
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GBLREF gd_region *gv_cur_region;
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GBLREF sgmnt_addrs *cs_addrs;
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GBLREF sgmnt_data_ptr_t cs_data;
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/* make sure that the journal file is available if appropriate */
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uint4 jnl_ensure_open(void)
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{
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uint4 jnl_status;
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jnl_private_control *jpc;
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sgmnt_addrs *csa;
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sgmnt_data_ptr_t csd;
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boolean_t first_open_of_jnl, need_to_open_jnl;
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int close_res;
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# if defined(VMS)
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static const gds_file_id file;
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uint4 status;
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# endif
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error_def(ERR_JNLFILOPN);
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csa = cs_addrs;
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csd = csa->hdr;
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assert(csa->now_crit);
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jpc = csa->jnl;
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assert(NULL != jpc);
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assert(JNL_ENABLED(csa->hdr));
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/* The goal is to change the code below to do only one JNL_FILE_SWITCHED(jpc) check instead of the additional
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* (NOJNL == jpc->channel) check done below. The assert below ensures that the NOJNL check can indeed
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* be subsumed by the JNL_FILE_SWITCHED check (with the exception of the source-server which has a special case that
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* needs to be fixed in C9D02-002241). Over time, this has to be changed to one check.
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*/
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assert((NOJNL != jpc->channel) || JNL_FILE_SWITCHED(jpc) || is_src_server);
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need_to_open_jnl = FALSE;
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jnl_status = 0;
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if (NOJNL == jpc->channel)
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{
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# ifdef VMS
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if (NOJNL != jpc->old_channel)
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{
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if (lib$ast_in_prog()) /* called from wcs_wipchk_ast */
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jnl_oper_user_ast(gv_cur_region);
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else
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{
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status = sys$setast(DISABLE);
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jnl_oper_user_ast(gv_cur_region);
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if (SS$_WASSET == status)
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ENABLE_AST;
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}
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}
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# endif
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need_to_open_jnl = TRUE;
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} else if (JNL_FILE_SWITCHED(jpc))
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{ /* The journal file has been changed "on the fly"; close the old one and open the new one */
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VMS_ONLY(assert(FALSE);) /* everyone having older jnl open should have closed it at time of switch in VMS */
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JNL_FD_CLOSE(jpc->channel, close_res); /* sets jpc->channel to NOJNL */
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need_to_open_jnl = TRUE;
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}
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if (need_to_open_jnl)
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{
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/* Whenever journal file get switch, reset the pini_addr and new_freeaddr. */
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jpc->pini_addr = 0;
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jpc->new_freeaddr = 0;
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if (IS_GTCM_GNP_SERVER_IMAGE)
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gtcm_jnl_switched(jpc->region); /* Reset pini_addr of all clients that had any older journal file open */
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UNIX_ONLY(first_open_of_jnl = (0 == csa->nl->jnl_file.u.inode);)
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VMS_ONLY(first_open_of_jnl = (0 == memcmp(csa->nl->jnl_file.jnl_file_id.fid, file.fid, SIZEOF(file.fid))));
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jnl_status = jnl_file_open(gv_cur_region, first_open_of_jnl, NULL);
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}
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DEBUG_ONLY(
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else
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GTM_WHITE_BOX_TEST(WBTEST_JNL_FILE_OPEN_FAIL, jnl_status, ERR_JNLFILOPN);
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)
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assert((0 != jnl_status) || !JNL_FILE_SWITCHED(jpc)
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UNIX_ONLY(|| (is_src_server && !JNL_ENABLED(csa) && REPL_WAS_ENABLED(csa))));
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return jnl_status;
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}
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