https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r52808 | pcadach | 2007-01-30 00:34:26 -0800 (Втр, 30 Янв 2007) | 1 line Don't play with free()'d pointers ........ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@52819 65c4cc65-6c06-0410-ace0-fbb531ad65f3
694 lines
20 KiB
C
694 lines
20 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* res_odbc.c <ODBC resource manager>
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* Copyright (C) 2004 - 2005 Anthony Minessale II <anthmct@yahoo.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief ODBC resource manager
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*
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* \author Mark Spencer <markster@digium.com>
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* \author Anthony Minessale II <anthmct@yahoo.com>
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*
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* \arg See also: \ref cdr_odbc
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*/
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/*** MODULEINFO
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<depend>unixodbc</depend>
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***/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include "asterisk/file.h"
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#include "asterisk/logger.h"
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#include "asterisk/channel.h"
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#include "asterisk/config.h"
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#include "asterisk/options.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/cli.h"
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#include "asterisk/lock.h"
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#include "asterisk/res_odbc.h"
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struct odbc_class
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{
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AST_LIST_ENTRY(odbc_class) list;
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char name[80];
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char dsn[80];
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char username[80];
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char password[80];
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char sanitysql[256];
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SQLHENV env;
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unsigned int haspool:1; /* Boolean - TDS databases need this */
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unsigned int limit:10; /* Gives a limit of 1023 maximum */
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unsigned int count:10; /* Running count of pooled connections */
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unsigned int delme:1; /* Purge the class */
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AST_LIST_HEAD(, odbc_obj) odbc_obj;
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};
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AST_LIST_HEAD_STATIC(odbc_list, odbc_class);
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static odbc_status odbc_obj_connect(struct odbc_obj *obj);
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static odbc_status odbc_obj_disconnect(struct odbc_obj *obj);
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static int odbc_register_class(struct odbc_class *class, int connect);
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SQLHSTMT ast_odbc_prepare_and_execute(struct odbc_obj *obj, SQLHSTMT (*prepare_cb)(struct odbc_obj *obj, void *data), void *data)
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{
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int res = 0, i, attempt;
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SQLINTEGER nativeerror=0, numfields=0;
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SQLSMALLINT diagbytes=0;
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unsigned char state[10], diagnostic[256];
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SQLHSTMT stmt;
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for (attempt = 0; attempt < 2; attempt++) {
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/* This prepare callback may do more than just prepare -- it may also
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* bind parameters, bind results, etc. The real key, here, is that
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* when we disconnect, all handles become invalid for most databases.
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* We must therefore redo everything when we establish a new
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* connection. */
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stmt = prepare_cb(obj, data);
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if (stmt) {
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res = SQLExecute(stmt);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO) && (res != SQL_NO_DATA)) {
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if (res == SQL_ERROR) {
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SQLGetDiagField(SQL_HANDLE_STMT, stmt, 1, SQL_DIAG_NUMBER, &numfields, SQL_IS_INTEGER, &diagbytes);
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for (i=0; i< numfields + 1; i++) {
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SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i + 1, state, &nativeerror, diagnostic, sizeof(diagnostic), &diagbytes);
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ast_log(LOG_WARNING, "SQL Execute returned an error %d: %s: %s (%d)\n", res, state, diagnostic, diagbytes);
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if (i > 10) {
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ast_log(LOG_WARNING, "Oh, that was good. There are really %d diagnostics?\n", (int)numfields);
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break;
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}
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}
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}
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ast_log(LOG_WARNING, "SQL Execute error %d! Attempting a reconnect...\n", res);
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SQLFreeHandle(SQL_HANDLE_STMT, stmt);
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stmt = NULL;
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obj->up = 0;
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/*
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* While this isn't the best way to try to correct an error, this won't automatically
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* fail when the statement handle invalidates.
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*/
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ast_odbc_sanity_check(obj);
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continue;
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}
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break;
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} else if (attempt == 0)
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ast_odbc_sanity_check(obj);
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}
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return stmt;
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}
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int ast_odbc_smart_execute(struct odbc_obj *obj, SQLHSTMT stmt)
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{
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int res = 0, i;
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SQLINTEGER nativeerror=0, numfields=0;
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SQLSMALLINT diagbytes=0;
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unsigned char state[10], diagnostic[256];
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res = SQLExecute(stmt);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO) && (res != SQL_NO_DATA)) {
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if (res == SQL_ERROR) {
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SQLGetDiagField(SQL_HANDLE_STMT, stmt, 1, SQL_DIAG_NUMBER, &numfields, SQL_IS_INTEGER, &diagbytes);
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for (i=0; i< numfields + 1; i++) {
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SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i + 1, state, &nativeerror, diagnostic, sizeof(diagnostic), &diagbytes);
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ast_log(LOG_WARNING, "SQL Execute returned an error %d: %s: %s (%d)\n", res, state, diagnostic, diagbytes);
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if (i > 10) {
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ast_log(LOG_WARNING, "Oh, that was good. There are really %d diagnostics?\n", (int)numfields);
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break;
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}
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}
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}
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#if 0
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/* This is a really bad method of trying to correct a dead connection. It
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* only ever really worked with MySQL. It will not work with any other
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* database, since most databases prepare their statements on the server,
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* and if you disconnect, you invalidate the statement handle. Hence, if
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* you disconnect, you're going to fail anyway, whether you try to execute
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* a second time or not.
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*/
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ast_log(LOG_WARNING, "SQL Execute error %d! Attempting a reconnect...\n", res);
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ast_mutex_lock(&obj->lock);
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obj->up = 0;
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ast_mutex_unlock(&obj->lock);
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odbc_obj_disconnect(obj);
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odbc_obj_connect(obj);
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res = SQLExecute(stmt);
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#endif
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}
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return res;
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}
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int ast_odbc_sanity_check(struct odbc_obj *obj)
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{
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char *test_sql = "select 1";
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SQLHSTMT stmt;
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int res = 0;
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if (obj->parent->sanitysql)
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test_sql = obj->parent->sanitysql;
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if (obj->up) {
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res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &stmt);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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obj->up = 0;
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} else {
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res = SQLPrepare(stmt, (unsigned char *)test_sql, SQL_NTS);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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obj->up = 0;
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} else {
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res = SQLExecute(stmt);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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obj->up = 0;
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}
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}
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}
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SQLFreeHandle (SQL_HANDLE_STMT, stmt);
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}
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if (!obj->up) { /* Try to reconnect! */
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ast_log(LOG_WARNING, "Connection is down attempting to reconnect...\n");
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odbc_obj_disconnect(obj);
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odbc_obj_connect(obj);
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}
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return obj->up;
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}
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static int load_odbc_config(void)
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{
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static char *cfg = "res_odbc.conf";
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struct ast_config *config;
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struct ast_variable *v;
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char *cat, *dsn, *username, *password, *sanitysql;
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int enabled, pooling, limit;
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int connect = 0, res = 0;
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struct odbc_class *new;
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config = ast_config_load(cfg);
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if (!config) {
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ast_log(LOG_WARNING, "Unable to load config file res_odbc.conf\n");
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return -1;
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}
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for (cat = ast_category_browse(config, NULL); cat; cat=ast_category_browse(config, cat)) {
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if (!strcasecmp(cat, "ENV")) {
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for (v = ast_variable_browse(config, cat); v; v = v->next) {
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setenv(v->name, v->value, 1);
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ast_log(LOG_NOTICE, "Adding ENV var: %s=%s\n", v->name, v->value);
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}
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} else {
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/* Reset all to defaults for each class of odbc connections */
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dsn = username = password = sanitysql = NULL;
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enabled = 1;
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connect = 0;
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pooling = 0;
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limit = 0;
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for (v = ast_variable_browse(config, cat); v; v = v->next) {
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if (!strcasecmp(v->name, "pooling")) {
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if (ast_true(v->value))
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pooling = 1;
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} else if (!strcasecmp(v->name, "limit")) {
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sscanf(v->value, "%d", &limit);
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if (ast_true(v->value) && !limit) {
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ast_log(LOG_WARNING, "Limit should be a number, not a boolean: '%s'. Setting limit to 1023 for ODBC class '%s'.\n", v->value, cat);
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limit = 1023;
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} else if (ast_false(v->value)) {
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ast_log(LOG_WARNING, "Limit should be a number, not a boolean: '%s'. Disabling ODBC class '%s'.\n", v->value, cat);
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enabled = 0;
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break;
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}
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} else if (!strcasecmp(v->name, "enabled")) {
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enabled = ast_true(v->value);
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} else if (!strcasecmp(v->name, "pre-connect")) {
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connect = ast_true(v->value);
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} else if (!strcasecmp(v->name, "dsn")) {
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dsn = v->value;
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} else if (!strcasecmp(v->name, "username")) {
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username = v->value;
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} else if (!strcasecmp(v->name, "password")) {
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password = v->value;
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} else if (!strcasecmp(v->name, "sanitysql")) {
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sanitysql = v->value;
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}
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}
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if (enabled && !ast_strlen_zero(dsn)) {
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new = ast_calloc(1, sizeof(*new));
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if (!new) {
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res = -1;
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break;
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}
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if (cat)
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ast_copy_string(new->name, cat, sizeof(new->name));
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if (dsn)
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ast_copy_string(new->dsn, dsn, sizeof(new->dsn));
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if (username)
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ast_copy_string(new->username, username, sizeof(new->username));
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if (password)
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ast_copy_string(new->password, password, sizeof(new->password));
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if (sanitysql)
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ast_copy_string(new->sanitysql, sanitysql, sizeof(new->sanitysql));
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SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &new->env);
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res = SQLSetEnvAttr(new->env, SQL_ATTR_ODBC_VERSION, (void *) SQL_OV_ODBC3, 0);
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if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
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ast_log(LOG_WARNING, "res_odbc: Error SetEnv\n");
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SQLFreeHandle(SQL_HANDLE_ENV, new->env);
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return res;
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}
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if (pooling) {
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new->haspool = pooling;
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if (limit) {
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new->limit = limit;
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} else {
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ast_log(LOG_WARNING, "Pooling without also setting a limit is pointless. Changing limit from 0 to 5.\n");
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new->limit = 5;
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}
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}
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odbc_register_class(new, connect);
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ast_log(LOG_NOTICE, "Registered ODBC class '%s' dsn->[%s]\n", cat, dsn);
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}
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}
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}
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ast_config_destroy(config);
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return res;
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}
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static int odbc_show_command(int fd, int argc, char **argv)
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{
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struct odbc_class *class;
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struct odbc_obj *current;
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AST_LIST_LOCK(&odbc_list);
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AST_LIST_TRAVERSE(&odbc_list, class, list) {
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if ((argc == 2) || (argc == 3 && !strcmp(argv[2], "all")) || (!strcmp(argv[2], class->name))) {
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int count = 0;
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ast_cli(fd, "Name: %s\nDSN: %s\n", class->name, class->dsn);
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if (class->haspool) {
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ast_cli(fd, "Pooled: yes\nLimit: %d\nConnections in use: %d\n", class->limit, class->count);
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AST_LIST_TRAVERSE(&(class->odbc_obj), current, list) {
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ast_cli(fd, " Connection %d: %s", ++count, current->up && ast_odbc_sanity_check(current) ? "connected" : "disconnected");
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}
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} else {
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/* Should only ever be one of these */
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AST_LIST_TRAVERSE(&(class->odbc_obj), current, list) {
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ast_cli(fd, "Pooled: no\nConnected: %s\n", current->up && ast_odbc_sanity_check(current) ? "yes" : "no");
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}
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}
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ast_cli(fd, "\n");
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}
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}
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AST_LIST_UNLOCK(&odbc_list);
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return 0;
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}
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static const char show_usage[] =
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"Usage: odbc show [<class>]\n"
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" List settings of a particular ODBC class.\n"
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" or, if not specified, all classes.\n";
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static struct ast_cli_entry cli_odbc[] = {
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{ { "odbc", "show", NULL },
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odbc_show_command, "List ODBC DSN(s)",
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show_usage },
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};
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static int odbc_register_class(struct odbc_class *class, int connect)
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{
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struct odbc_obj *obj;
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if (class) {
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AST_LIST_LOCK(&odbc_list);
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AST_LIST_INSERT_HEAD(&odbc_list, class, list);
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AST_LIST_UNLOCK(&odbc_list);
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if (connect) {
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/* Request and release builds a connection */
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obj = ast_odbc_request_obj(class->name, 0);
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if (obj)
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ast_odbc_release_obj(obj);
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}
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return 0;
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} else {
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ast_log(LOG_WARNING, "Attempted to register a NULL class?\n");
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return -1;
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}
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}
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void ast_odbc_release_obj(struct odbc_obj *obj)
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{
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/* For pooled connections, this frees the connection to be
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* reused. For non-pooled connections, it does nothing. */
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obj->used = 0;
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}
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struct odbc_obj *ast_odbc_request_obj(const char *name, int check)
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{
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struct odbc_obj *obj = NULL;
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struct odbc_class *class;
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AST_LIST_LOCK(&odbc_list);
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AST_LIST_TRAVERSE(&odbc_list, class, list) {
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if (!strcmp(class->name, name))
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break;
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}
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AST_LIST_UNLOCK(&odbc_list);
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if (!class)
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return NULL;
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AST_LIST_LOCK(&class->odbc_obj);
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if (class->haspool) {
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/* Recycle connections before building another */
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AST_LIST_TRAVERSE(&class->odbc_obj, obj, list) {
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if (! obj->used) {
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obj->used = 1;
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break;
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}
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}
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if (!obj && (class->count < class->limit)) {
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class->count++;
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obj = ast_calloc(1, sizeof(*obj));
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if (!obj) {
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AST_LIST_UNLOCK(&class->odbc_obj);
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return NULL;
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}
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ast_mutex_init(&obj->lock);
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obj->parent = class;
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odbc_obj_connect(obj);
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AST_LIST_INSERT_TAIL(&class->odbc_obj, obj, list);
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}
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} else {
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/* Non-pooled connection: multiple modules can use the same connection. */
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AST_LIST_TRAVERSE(&class->odbc_obj, obj, list) {
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/* Non-pooled connection: if there is an entry, return it */
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break;
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}
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if (!obj) {
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/* No entry: build one */
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obj = ast_calloc(1, sizeof(*obj));
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if (!obj) {
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AST_LIST_UNLOCK(&class->odbc_obj);
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return NULL;
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}
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ast_mutex_init(&obj->lock);
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obj->parent = class;
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if (odbc_obj_connect(obj) == ODBC_FAIL) {
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ast_log(LOG_WARNING, "Failed to connect to %s\n", name);
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ast_mutex_destroy(&obj->lock);
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free(obj);
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obj = NULL;
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} else {
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AST_LIST_INSERT_HEAD(&class->odbc_obj, obj, list);
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}
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}
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}
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AST_LIST_UNLOCK(&class->odbc_obj);
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if (obj && check) {
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ast_odbc_sanity_check(obj);
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}
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return obj;
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}
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static odbc_status odbc_obj_disconnect(struct odbc_obj *obj)
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{
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int res;
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ast_mutex_lock(&obj->lock);
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res = SQLDisconnect(obj->con);
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if (res == ODBC_SUCCESS) {
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ast_log(LOG_WARNING, "res_odbc: disconnected %d from %s [%s]\n", res, obj->parent->name, obj->parent->dsn);
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} else {
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ast_log(LOG_WARNING, "res_odbc: %s [%s] already disconnected\n",
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obj->parent->name, obj->parent->dsn);
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}
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obj->up = 0;
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ast_mutex_unlock(&obj->lock);
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return ODBC_SUCCESS;
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}
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static odbc_status odbc_obj_connect(struct odbc_obj *obj)
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{
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int res;
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SQLINTEGER err;
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short int mlen;
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unsigned char msg[200], stat[10];
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#ifdef NEEDTRACE
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SQLINTEGER enable = 1;
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char *tracefile = "/tmp/odbc.trace";
|
|
#endif
|
|
ast_mutex_lock(&obj->lock);
|
|
|
|
res = SQLAllocHandle(SQL_HANDLE_DBC, obj->parent->env, &obj->con);
|
|
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
|
|
ast_log(LOG_WARNING, "res_odbc: Error AllocHDB %d\n", res);
|
|
SQLFreeHandle(SQL_HANDLE_ENV, obj->parent->env);
|
|
|
|
ast_mutex_unlock(&obj->lock);
|
|
return ODBC_FAIL;
|
|
}
|
|
SQLSetConnectAttr(obj->con, SQL_LOGIN_TIMEOUT, (SQLPOINTER *) 10, 0);
|
|
#ifdef NEEDTRACE
|
|
SQLSetConnectAttr(obj->con, SQL_ATTR_TRACE, &enable, SQL_IS_INTEGER);
|
|
SQLSetConnectAttr(obj->con, SQL_ATTR_TRACEFILE, tracefile, strlen(tracefile));
|
|
#endif
|
|
|
|
if (obj->up) {
|
|
odbc_obj_disconnect(obj);
|
|
ast_log(LOG_NOTICE, "Re-connecting %s\n", obj->parent->name);
|
|
} else {
|
|
ast_log(LOG_NOTICE, "Connecting %s\n", obj->parent->name);
|
|
}
|
|
|
|
res = SQLConnect(obj->con,
|
|
(SQLCHAR *) obj->parent->dsn, SQL_NTS,
|
|
(SQLCHAR *) obj->parent->username, SQL_NTS,
|
|
(SQLCHAR *) obj->parent->password, SQL_NTS);
|
|
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
SQLGetDiagRec(SQL_HANDLE_DBC, obj->con, 1, stat, &err, msg, 100, &mlen);
|
|
ast_mutex_unlock(&obj->lock);
|
|
ast_log(LOG_WARNING, "res_odbc: Error SQLConnect=%d errno=%d %s\n", res, (int)err, msg);
|
|
return ODBC_FAIL;
|
|
} else {
|
|
ast_log(LOG_NOTICE, "res_odbc: Connected to %s [%s]\n", obj->parent->name, obj->parent->dsn);
|
|
obj->up = 1;
|
|
}
|
|
|
|
ast_mutex_unlock(&obj->lock);
|
|
return ODBC_SUCCESS;
|
|
}
|
|
|
|
static int reload(void)
|
|
{
|
|
static char *cfg = "res_odbc.conf";
|
|
struct ast_config *config;
|
|
struct ast_variable *v;
|
|
char *cat, *dsn, *username, *password, *sanitysql;
|
|
int enabled, pooling, limit;
|
|
int connect = 0, res = 0;
|
|
|
|
struct odbc_class *new, *class;
|
|
struct odbc_obj *current;
|
|
|
|
/* First, mark all to be purged */
|
|
AST_LIST_LOCK(&odbc_list);
|
|
AST_LIST_TRAVERSE(&odbc_list, class, list) {
|
|
class->delme = 1;
|
|
}
|
|
|
|
config = ast_config_load(cfg);
|
|
if (config) {
|
|
for (cat = ast_category_browse(config, NULL); cat; cat=ast_category_browse(config, cat)) {
|
|
if (!strcasecmp(cat, "ENV")) {
|
|
for (v = ast_variable_browse(config, cat); v; v = v->next) {
|
|
setenv(v->name, v->value, 1);
|
|
ast_log(LOG_NOTICE, "Adding ENV var: %s=%s\n", v->name, v->value);
|
|
}
|
|
} else {
|
|
/* Reset all to defaults for each class of odbc connections */
|
|
dsn = username = password = sanitysql = NULL;
|
|
enabled = 1;
|
|
connect = 0;
|
|
pooling = 0;
|
|
limit = 0;
|
|
for (v = ast_variable_browse(config, cat); v; v = v->next) {
|
|
if (!strcasecmp(v->name, "pooling")) {
|
|
pooling = 1;
|
|
} else if (!strcasecmp(v->name, "limit")) {
|
|
sscanf(v->value, "%d", &limit);
|
|
if (ast_true(v->value) && !limit) {
|
|
ast_log(LOG_WARNING, "Limit should be a number, not a boolean: '%s'. Setting limit to 1023 for ODBC class '%s'.\n", v->value, cat);
|
|
limit = 1023;
|
|
} else if (ast_false(v->value)) {
|
|
ast_log(LOG_WARNING, "Limit should be a number, not a boolean: '%s'. Disabling ODBC class '%s'.\n", v->value, cat);
|
|
enabled = 0;
|
|
break;
|
|
}
|
|
} else if (!strcasecmp(v->name, "enabled")) {
|
|
enabled = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "pre-connect")) {
|
|
connect = ast_true(v->value);
|
|
} else if (!strcasecmp(v->name, "dsn")) {
|
|
dsn = v->value;
|
|
} else if (!strcasecmp(v->name, "username")) {
|
|
username = v->value;
|
|
} else if (!strcasecmp(v->name, "password")) {
|
|
password = v->value;
|
|
} else if (!strcasecmp(v->name, "sanitysql")) {
|
|
sanitysql = v->value;
|
|
}
|
|
}
|
|
|
|
if (enabled && !ast_strlen_zero(dsn)) {
|
|
/* First, check the list to see if it already exists */
|
|
AST_LIST_TRAVERSE(&odbc_list, class, list) {
|
|
if (!strcmp(class->name, cat)) {
|
|
class->delme = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (class) {
|
|
new = class;
|
|
} else {
|
|
new = ast_calloc(1, sizeof(*new));
|
|
}
|
|
|
|
if (!new) {
|
|
res = -1;
|
|
break;
|
|
}
|
|
|
|
if (cat)
|
|
ast_copy_string(new->name, cat, sizeof(new->name));
|
|
if (dsn)
|
|
ast_copy_string(new->dsn, dsn, sizeof(new->dsn));
|
|
if (username)
|
|
ast_copy_string(new->username, username, sizeof(new->username));
|
|
if (password)
|
|
ast_copy_string(new->password, password, sizeof(new->password));
|
|
if (sanitysql)
|
|
ast_copy_string(new->sanitysql, sanitysql, sizeof(new->sanitysql));
|
|
|
|
if (!class) {
|
|
SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &new->env);
|
|
res = SQLSetEnvAttr(new->env, SQL_ATTR_ODBC_VERSION, (void *) SQL_OV_ODBC3, 0);
|
|
|
|
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
|
|
ast_log(LOG_WARNING, "res_odbc: Error SetEnv\n");
|
|
SQLFreeHandle(SQL_HANDLE_ENV, new->env);
|
|
AST_LIST_UNLOCK(&odbc_list);
|
|
return res;
|
|
}
|
|
}
|
|
|
|
if (pooling) {
|
|
new->haspool = pooling;
|
|
if (limit) {
|
|
new->limit = limit;
|
|
} else {
|
|
ast_log(LOG_WARNING, "Pooling without also setting a limit is pointless. Changing limit from 0 to 5.\n");
|
|
new->limit = 5;
|
|
}
|
|
}
|
|
|
|
if (class) {
|
|
ast_log(LOG_NOTICE, "Refreshing ODBC class '%s' dsn->[%s]\n", cat, dsn);
|
|
} else {
|
|
odbc_register_class(new, connect);
|
|
ast_log(LOG_NOTICE, "Registered ODBC class '%s' dsn->[%s]\n", cat, dsn);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
ast_config_destroy(config);
|
|
}
|
|
|
|
/* Purge classes that we know can go away (pooled with 0, only) */
|
|
AST_LIST_TRAVERSE_SAFE_BEGIN(&odbc_list, class, list) {
|
|
if (class->delme && class->haspool && class->count == 0) {
|
|
AST_LIST_TRAVERSE_SAFE_BEGIN(&(class->odbc_obj), current, list) {
|
|
AST_LIST_REMOVE_CURRENT(&(class->odbc_obj), list);
|
|
odbc_obj_disconnect(current);
|
|
ast_mutex_destroy(¤t->lock);
|
|
free(current);
|
|
}
|
|
AST_LIST_TRAVERSE_SAFE_END;
|
|
|
|
AST_LIST_REMOVE_CURRENT(&odbc_list, list);
|
|
free(class);
|
|
}
|
|
}
|
|
AST_LIST_TRAVERSE_SAFE_END;
|
|
AST_LIST_UNLOCK(&odbc_list);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int unload_module(void)
|
|
{
|
|
/* Prohibit unloading */
|
|
return -1;
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
if(load_odbc_config() == -1)
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
ast_cli_register_multiple(cli_odbc, sizeof(cli_odbc) / sizeof(struct ast_cli_entry));
|
|
ast_log(LOG_NOTICE, "res_odbc loaded.\n");
|
|
return 0;
|
|
}
|
|
|
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS, "ODBC Resource",
|
|
.load = load_module,
|
|
.unload = unload_module,
|
|
.reload = reload,
|
|
);
|