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Merge "res_config_pgsql.c: Fix deadlock loading realtime configuration."

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This commit is contained in:
Joshua Colp
2015-10-15 14:41:37 -05:00
committed by Gerrit Code Review
parent 27e506e481 d799bcf361
commit 6b1badcb68
1 changed files with 5 additions and 3 deletions
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8
res/res_config_pgsql.c
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@@ -303,7 +303,9 @@ static struct tables *find_table(const char *database, const char *orig_tablenam
ast_str_set(&sql, 0, "SELECT a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc, a.atttypmod FROM pg_class c, pg_type t, pg_attribute a LEFT OUTER JOIN pg_attrdef d ON a.atthasdef AND d.adrelid = a.attrelid AND d.adnum = a.attnum WHERE c.oid = a.attrelid AND a.atttypid = t.oid AND (a.attnum > 0) AND c.relname = '%s' ORDER BY c.relname, attnum", tablename);
}
ast_mutex_lock(&pgsql_lock);
exec_result = pgsql_exec(database, orig_tablename, ast_str_buffer(sql), &result);
ast_mutex_unlock(&pgsql_lock);
ast_debug(1, "Query of table structure complete. Now retrieving results.\n");
if (exec_result != 0) {
ast_log(LOG_ERROR, "Failed to query database columns for table %s\n", orig_tablename);
@@ -1321,6 +1323,9 @@ static int unload_module(void)
ast_cli_unregister_multiple(cli_realtime, ARRAY_LEN(cli_realtime));
ast_config_engine_deregister(&pgsql_engine);
/* Unlock so something else can destroy the lock. */
ast_mutex_unlock(&pgsql_lock);
/* Destroy cached table info */
AST_LIST_LOCK(&psql_tables);
while ((table = AST_LIST_REMOVE_HEAD(&psql_tables, list))) {
@@ -1328,9 +1333,6 @@ static int unload_module(void)
}
AST_LIST_UNLOCK(&psql_tables);
/* Unlock so something else can destroy the lock. */
ast_mutex_unlock(&pgsql_lock);
return 0;
}