/**
* @brief
* Recover server information and attributes from server database
*
* @par FunctionalitY:
* This function is only called on Server initialization at start up.
*
* @par Note:
* server structure, extern struct server server, must be preallocated and
* all default values should already be set.
*
* @see pbsd_init.c
*
* @return Error code
* @retval 0 : On successful recovery and creation of server structure
* @retval -1 : On failutre to open or read file.
*
*/
int
svr_recov_db(void)
{
pbs_db_conn_t *conn = (pbs_db_conn_t *) svr_db_conn;
pbs_db_svr_info_t dbsvr;
pbs_db_obj_info_t obj;
/* load server_qs */
dbsvr.attr_list.attr_count = 0;
dbsvr.attr_list.attributes = NULL;
obj.pbs_db_obj_type = PBS_DB_SVR;
obj.pbs_db_un.pbs_db_svr = &dbsvr;
/* read in job fixed sub-structure */
if (pbs_db_load_obj(conn, &obj) != 0)
goto db_err;
if (db_to_svr_svr(&server, &dbsvr) != 0)
goto db_err;
pbs_db_reset_obj(&obj);
return (0);
db_err:
return -1;
}
int
svr_save_db(struct server *ps, int mode)
{
pbs_db_conn_t *conn = (pbs_db_conn_t *) svr_db_conn;
pbs_db_svr_info_t dbsvr;
pbs_db_obj_info_t obj;
int savetype = PBS_UPDATE_DB_FULL;
int rc;
ps->sv_qs.sv_savetm = time_now;
/* as part of the server save, update svrlive file now,
* used in failover
*/
if (update_svrlive() !=0)
return -1;
if (mode == SVR_SAVE_FULL)
savetype = PBS_UPDATE_DB_FULL;
else if (mode == SVR_SAVE_QUICK)
savetype = PBS_UPDATE_DB_QUICK;
else
savetype = PBS_INSERT_DB;
if (svr_to_db_svr(ps, &dbsvr, savetype) != 0)
goto db_err;
obj.pbs_db_obj_type = PBS_DB_SVR;
obj.pbs_db_un.pbs_db_svr = &dbsvr;
rc = pbs_db_save_obj(conn, &obj, savetype);
if (rc != 0) {
savetype = PBS_INSERT_DB;
rc = pbs_db_save_obj(conn, &obj, savetype);
}
pbs_db_reset_obj(&obj);
if (rc != 0)
goto db_err;
return (0);
db_err:
strcpy(log_buffer, msg_svdbnosv);
if (conn->conn_db_err != NULL)
strncat(log_buffer, conn->conn_db_err, LOG_BUF_SIZE - strlen(log_buffer) - 1);
log_err(-1, __func__, log_buffer);
panic_stop_db(log_buffer);
return (-1);
}
int
sched_save_db(pbs_sched *ps, int mode)
{
pbs_db_conn_t *conn = (pbs_db_conn_t *) svr_db_conn;
pbs_db_sched_info_t dbsched;
pbs_db_obj_info_t obj;
int savetype = PBS_UPDATE_DB_FULL;
int rc;
if (mode == SVR_SAVE_FULL)
savetype = PBS_UPDATE_DB_FULL;
else if (mode == SVR_SAVE_QUICK)
savetype = PBS_UPDATE_DB_QUICK;
else
savetype = PBS_INSERT_DB;
if (svr_to_db_sched(ps, &dbsched, savetype) != 0)
goto db_err;
obj.pbs_db_obj_type = PBS_DB_SCHED;
obj.pbs_db_un.pbs_db_sched = &dbsched;
rc = pbs_db_save_obj(conn, &obj, savetype);
if (rc != 0) {
savetype = PBS_INSERT_DB;
rc = pbs_db_save_obj(conn, &obj, savetype);
}
/* free the attribute list allocated by encode_attrs */
pbs_db_reset_obj(&obj);
if (rc != 0)
goto db_err;
return (0);
db_err:
strcpy(log_buffer, schedemsg);
if (conn->conn_db_err != NULL)
strncat(log_buffer, conn->conn_db_err, LOG_BUF_SIZE - strlen(log_buffer) - 1);
log_err(-1, __func__, log_buffer);
panic_stop_db(log_buffer);
return (-1);
}
/**
* @brief
* Recover a queue from the database
*
* @param[in] qname - Name of the queue to recover
*
* @return The recovered queue structure
* @retval NULL - Failure
* @retval !NULL - Success - address of recovered queue returned
*
*/
pbs_queue *
que_recov_db(char *qname)
{
pbs_queue *pq;
pbs_db_que_info_t dbque;
pbs_db_obj_info_t obj;
pbs_db_conn_t *conn = (pbs_db_conn_t *) svr_db_conn;
obj.pbs_db_obj_type = PBS_DB_QUEUE;
obj.pbs_db_un.pbs_db_que = &dbque;
pq = que_alloc(qname); /* allocate & init queue structure space */
if (pq == NULL) {
log_err(-1, "que_recov", "que_alloc failed");
return NULL;
}
/* load server_qs */
dbque.qu_name[sizeof(dbque.qu_name) - 1] = '\0';
strncpy(dbque.qu_name, qname, sizeof(dbque.qu_name));
/* read in job fixed sub-structure */
if (pbs_db_load_obj(conn, &obj) != 0)
goto db_err;
if (db_to_svr_que(pq, &dbque) != 0)
goto db_err;
pbs_db_reset_obj(&obj);
/* all done recovering the queue */
return (pq);
db_err:
log_err(-1, "que_recov", "read of queuedb failed");
if (pq)
que_free(pq);
return 0;
}
pbs_sched *
sched_recov_db(char *sname)
{
pbs_sched *ps;
pbs_db_sched_info_t dbsched;
pbs_db_obj_info_t obj;
pbs_db_conn_t *conn = (pbs_db_conn_t *) svr_db_conn;
obj.pbs_db_obj_type = PBS_DB_SCHED;
obj.pbs_db_un.pbs_db_sched = &dbsched;
ps = sched_alloc(sname); /* allocate & init sched structure space */
if (ps == NULL) {
log_err(-1, "sched_recov", "sched_alloc failed");
return NULL;
}
/* load sched */
dbsched.sched_name[sizeof(dbsched.sched_name) - 1] = '\0';
strncpy(dbsched.sched_name, sname, sizeof(dbsched.sched_name));
/* read in job fixed sub-structure */
if (pbs_db_load_obj(conn, &obj) != 0)
goto db_err;
if (db_to_svr_sched(ps, &dbsched) != 0)
goto db_err;
pbs_db_reset_obj(&obj);
/* all done recovering the sched */
return (ps);
db_err:
log_err(-1, "sched_recov", "read of scheddb failed");
if (ps)
free(ps);
return NULL;
}
/**
* @brief
* Save a queue to the database
*
* @param[in] pque - Pointer to the queue to save
* @param[in] mode:
* QUE_SAVE_FULL - Save full queue information (update)
* QUE_SAVE_NEW - Save new queue information (insert)
*
* @return Error code
* @retval 0 - Success
* @retval 1 - Failure
*
*/
int
que_save_db(pbs_queue *pque, int mode)
{
pbs_db_que_info_t dbque;
pbs_db_obj_info_t obj;
pbs_db_conn_t *conn = (pbs_db_conn_t *) svr_db_conn;
int savetype = PBS_UPDATE_DB_FULL;
if (svr_to_db_que(pque, &dbque, savetype) != 0)
goto db_err;
obj.pbs_db_obj_type = PBS_DB_QUEUE;
obj.pbs_db_un.pbs_db_que = &dbque;
if (mode == QUE_SAVE_NEW)
savetype = PBS_INSERT_DB;
if (pbs_db_save_obj(conn, &obj, savetype) != 0)
goto db_err;
pbs_db_reset_obj(&obj);
return (0);
db_err:
/* free the attribute list allocated by encode_attrs */
free(dbque.attr_list.attributes);
strcpy(log_buffer, "que_save failed ");
if (conn->conn_db_err != NULL)
strncat(log_buffer, conn->conn_db_err, LOG_BUF_SIZE - strlen(log_buffer) - 1);
log_err(-1, __func__, log_buffer);
panic_stop_db(log_buffer);
return (-1);
}
