int gtmsource_mode_change(int to_mode)
{
uint4 savepid;
int exit_status;
int status, detach_status, remove_status;
int log_fd = 0, close_status = 0;
char* err_code;
int save_errno;
sgmnt_addrs *repl_csa;
assert(holds_sem[SOURCE][JNL_POOL_ACCESS_SEM]);
repl_log(stdout, TRUE, TRUE, "Initiating %s operation on source server pid [%d] for secondary instance [%s]\n",
(GTMSOURCE_MODE_ACTIVE_REQUESTED == to_mode) ? "ACTIVATE" : "DEACTIVATE",
jnlpool.gtmsource_local->gtmsource_pid, jnlpool.gtmsource_local->secondary_instname);
if ((jnlpool.gtmsource_local->mode == GTMSOURCE_MODE_ACTIVE_REQUESTED)
|| (jnlpool.gtmsource_local->mode == GTMSOURCE_MODE_PASSIVE_REQUESTED))
{
repl_log(stderr, FALSE, TRUE, "Source Server %s already requested, not changing mode\n",
(to_mode == GTMSOURCE_MODE_ACTIVE_REQUESTED) ? "ACTIVATE" : "DEACTIVATE");
return (ABNORMAL_SHUTDOWN);
}
if (((GTMSOURCE_MODE_ACTIVE == jnlpool.gtmsource_local->mode) && (GTMSOURCE_MODE_ACTIVE_REQUESTED == to_mode))
|| ((GTMSOURCE_MODE_PASSIVE == jnlpool.gtmsource_local->mode) && (GTMSOURCE_MODE_PASSIVE_REQUESTED == to_mode)))
{
repl_log(stderr, FALSE, TRUE, "Source Server already %s, not changing mode\n",
(to_mode == GTMSOURCE_MODE_ACTIVE_REQUESTED) ? "ACTIVE" : "PASSIVE");
return (ABNORMAL_SHUTDOWN);
}
assert(ROOTPRIMARY_UNSPECIFIED != gtmsource_options.rootprimary);
/*check if the new log file is writable*/
if ('\0' != gtmsource_options.log_file[0] && 0 != STRCMP(jnlpool.gtmsource_local->log_file, gtmsource_options.log_file))
{
OPENFILE3(gtmsource_options.log_file,
O_RDWR | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, log_fd);
if (log_fd < 0) {
save_errno = ERRNO;
err_code = STRERROR(save_errno);
gtm_putmsg_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_REPLLOGOPN, 6,
LEN_AND_STR(gtmsource_options.log_file),
LEN_AND_STR(err_code),
LEN_AND_STR(NULL_DEVICE));
return (ABNORMAL_SHUTDOWN);
}
CLOSEFILE_IF_OPEN(log_fd, close_status);
assert(close_status==0);
}
if ((GTMSOURCE_MODE_ACTIVE_REQUESTED == to_mode)
&& (ROOTPRIMARY_SPECIFIED == gtmsource_options.rootprimary) && jnlpool.jnlpool_ctl->upd_disabled)
{ /* ACTIVATE is specified with ROOTPRIMARY on a journal pool that was created with PROPAGATEPRIMARY. This is a
* case of transition from propagating primary to root primary. Enable updates in this journal pool and append
* a histinfo record to the replication instance file. The function "gtmsource_rootprimary_init" does just that.
*/
gtmsource_rootprimary_init(jnlpool.jnlpool_ctl->jnl_seqno);
}
DEBUG_ONLY(repl_csa = &FILE_INFO(jnlpool.jnlpool_dummy_reg)->s_addrs;)
int repl_log_init(repl_log_file_t log_type,
int *log_fd,
int *stats_fd,
char *log,
char *stats_log)
{
/* Open the log file */
char log_file_name[MAX_FN_LEN + 1], *err_code;
int tmp_fd;
int save_errno;
int stdout_status, stderr_status;
error_def(ERR_REPLLOGOPN);
error_def(ERR_TEXT);
if (*log == '\0')
return(EREPL_LOGFILEOPEN);
strcpy(log_file_name, log);
if (log_type == REPL_STATISTICS_LOG)
{
if (strcmp(log_file_name, stats_log) != 0)
strcpy(log_file_name, stats_log);
else
{
*stats_fd = *log_fd;
return(SS_NORMAL);
}
}
OPENFILE3(log_file_name, O_RDWR | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, tmp_fd);
if (tmp_fd < 0)
{
if (log_type == REPL_GENERAL_LOG && *log_fd == -1 || *stats_fd == -1)
{
save_errno = ERRNO;
err_code = STRERROR(save_errno);
send_msg(VARLSTCNT(8) ERR_REPLLOGOPN, 6,
LEN_AND_STR(log_file_name),
LEN_AND_STR(err_code),
LEN_AND_STR(NULL_DEVICE));
strcpy(log_file_name, NULL_DEVICE);
if (log_type == REPL_GENERAL_LOG)
strcpy(log, log_file_name);
else
strcpy(stats_log, log_file_name);
OPENFILE(log_file_name, O_RDWR, tmp_fd); /* Should not fail */
} else
{
save_errno = ERRNO;
err_code = STRERROR(save_errno);
gtm_putmsg(VARLSTCNT(8) ERR_REPLLOGOPN, 6,
LEN_AND_STR(log_file_name),
LEN_AND_STR(err_code),
(log_type == REPL_GENERAL_LOG) ?
strlen(log) : strlen(stats_log),
(log_type == REPL_GENERAL_LOG) ?
log : stats_log);
return(EREPL_LOGFILEOPEN);
}
}
if (log_type == REPL_GENERAL_LOG)
{
int dup2_res;
/* Duplicate stdout and stderr onto log file */
DUP2(tmp_fd, 1, stdout_status);
if (stdout_status >= 0)
{
DUP2(tmp_fd, 2, stderr_status);
if (stderr_status < 0)
{
save_errno = ERRNO;
if (*log_fd != -1)
{
DUP2(*log_fd, 1, dup2_res); /* Restore old log file */
DUP2(*log_fd, 2, dup2_res);
}
}
} else
{
save_errno = ERRNO;
if (*log_fd != -1)
DUP2(*log_fd, 1, dup2_res); /* Restore old log file */
}
if (stdout_status >= 0 && stderr_status >= 0)
{
if (*log_fd != -1)
close(*log_fd);
*log_fd = tmp_fd;
} else
{
err_code = STRERROR(save_errno);
gtm_putmsg(VARLSTCNT(10) ERR_REPLLOGOPN, 6,
LEN_AND_STR(log_file_name),
LEN_AND_STR(err_code),
(log_type == REPL_GENERAL_LOG) ?
strlen(log) : strlen(stats_log),
(log_type == REPL_GENERAL_LOG) ?
log : stats_log,
ERR_TEXT, 2, RTS_ERROR_LITERAL("Error in dup2"));
}
} else
{
if (*stats_fd != -1)
close(*stats_fd);
*stats_fd = tmp_fd;
}
return(SS_NORMAL);
}
