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Added blr_cache_read_master_data and dcb checks

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Added blr_cache_read_master_data()
Added dcb checks before calling db_close
Forced initialisation values of some parameters
This commit is contained in:
MassimilianoPinto
2015-06-08 16:56:52 +02:00
parent 945e2f8132
commit 809cdb5b1e
3 changed files with 43 additions and 21 deletions
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26
server/modules/routing/binlog/blr.c
View File

@ -183,7 +183,11 @@ unsigned char *defuuid;
spinlock_init(&inst->binlog_lock);
inst->binlog_fd = -1;
inst->master_chksum = true;
inst->master_state = BLRM_UNCONNECTED;
inst->master = NULL;
inst->client = NULL;
inst->master_uuid = NULL;
inst->low_water = DEF_LOW_WATER;
@ -374,23 +378,13 @@ unsigned char *defuuid;
inst->next = NULL;
inst->lastEventTimestamp = 0;
inst->binlog_position = 0;
strcpy(inst->binlog_name, "");
/*
* Read any cached response messages
*/
inst->saved_master.server_id = blr_cache_read_response(inst, "serverid");
inst->saved_master.heartbeat = blr_cache_read_response(inst, "heartbeat");
inst->saved_master.chksum1 = blr_cache_read_response(inst, "chksum1");
inst->saved_master.chksum2 = blr_cache_read_response(inst, "chksum2");
inst->saved_master.gtid_mode = blr_cache_read_response(inst, "gtidmode");
inst->saved_master.uuid = blr_cache_read_response(inst, "uuid");
inst->saved_master.setslaveuuid = blr_cache_read_response(inst, "ssuuid");
inst->saved_master.setnames = blr_cache_read_response(inst, "setnames");
inst->saved_master.utf8 = blr_cache_read_response(inst, "utf8");
inst->saved_master.select1 = blr_cache_read_response(inst, "select1");
inst->saved_master.selectver = blr_cache_read_response(inst, "selectver");
inst->saved_master.selectvercom = blr_cache_read_response(inst, "selectvercom");
inst->saved_master.selecthostname = blr_cache_read_response(inst, "selecthostname");
inst->saved_master.map = blr_cache_read_response(inst, "map");
blr_cache_read_master_data(inst);
/*
* Initialise the binlog file and position
@ -1060,7 +1054,7 @@ unsigned long mysql_errno;
blrm_states[router->master_state], msg)));
if (router->master_state < BLRM_BINLOGDUMP || router->master_state != BLRM_SLAVE_STOPPED) {
/* set mysql_errno */
/* set mysql_errno */
router->m_errno = mysql_errno;
/* set io error message */

28
server/modules/routing/binlog/blr_file.c
View File

@ -23,8 +23,9 @@
* @verbatim
* Revision History
*
* Date Who Description
* Date Who Description
* 14/04/2014 Mark Riddoch Initial implementation
* 08/06/2015 Massimiliano Pinto Addition of blr_cache_read_master_data()
*
* @endverbatim
*/
@ -59,6 +60,7 @@ static int blr_file_create(ROUTER_INSTANCE *router, char *file);
static void blr_file_append(ROUTER_INSTANCE *router, char *file);
static uint32_t extract_field(uint8_t *src, int bits);
static void blr_log_header(logfile_id_t file, char *msg, uint8_t *ptr);
void blr_cache_read_master_data(ROUTER_INSTANCE *router);
/**
* Initialise the binlog file for this instance. MaxScale will look
@ -752,3 +754,27 @@ int filenum;
return 0;
return 1;
}
/**
* Read any previously saved master data
*
* @param router The router instance
*/
void
blr_cache_read_master_data(ROUTER_INSTANCE *router)
{
router->saved_master.server_id = blr_cache_read_response(router, "serverid");
router->saved_master.heartbeat = blr_cache_read_response(router, "heartbeat");
router->saved_master.chksum1 = blr_cache_read_response(router, "chksum1");
router->saved_master.chksum2 = blr_cache_read_response(router, "chksum2");
router->saved_master.gtid_mode = blr_cache_read_response(router, "gtidmode");
router->saved_master.uuid = blr_cache_read_response(router, "uuid");
router->saved_master.setslaveuuid = blr_cache_read_response(router, "ssuuid");
router->saved_master.setnames = blr_cache_read_response(router, "setnames");
router->saved_master.utf8 = blr_cache_read_response(router, "utf8");
router->saved_master.select1 = blr_cache_read_response(router, "select1");
router->saved_master.selectver = blr_cache_read_response(router, "selectver");
router->saved_master.selectvercom = blr_cache_read_response(router, "selectvercom");
router->saved_master.selecthostname = blr_cache_read_response(router, "selecthostname");
router->saved_master.map = blr_cache_read_response(router, "map");
}

10
server/modules/routing/binlog/blr_slave.c
View File

@ -2211,8 +2211,9 @@ blr_stop_slave(ROUTER_INSTANCE* router, ROUTER_SLAVE* slave)
if (router->master_state != BLRM_SLAVE_STOPPED) {
if (router->master->fd != -1 && router->master->state == DCB_STATE_POLLING)
blr_master_close(router);
if (router->master)
if (router->master->fd != -1 && router->master->state == DCB_STATE_POLLING)
blr_master_close(router);
spinlock_acquire(&router->lock);
@ -2220,8 +2221,9 @@ blr_stop_slave(ROUTER_INSTANCE* router, ROUTER_SLAVE* slave)
spinlock_release(&router->lock);
if (router->client->fd != -1 && router->client->state == DCB_STATE_POLLING)
dcb_close(router->client);
if (router->client)
if (router->client->fd != -1 && router->client->state == DCB_STATE_POLLING)
dcb_close(router->client);
/* Discard the queued residual data */
ptr = router->residual;