Merged revisions 310415 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

................
  r310415 | tilghman | 2011-03-12 14:05:46 -0600 (Sat, 12 Mar 2011) | 14 lines
  
  Merged revisions 310414 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2
  
  ........
    r310414 | tilghman | 2011-03-12 13:51:23 -0600 (Sat, 12 Mar 2011) | 7 lines
    
    Transactional handles should be used for the insertbuf, if available.
    
    Also, fix a possible resource leak.
    
    (closes issue #18943)
     Reported by: irroot
  ........
................


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@310416 65c4cc65-6c06-0410-ace0-fbb531ad65f3

funcs/func_odbc.c

@@ -304,29 +304,30 @@ static int acf_odbc_write(struct ast_channel *chan, const char *cmd, char *s, co
 			pbx_builtin_setvar_helper(chan, varname, NULL);
 		}
 		pbx_builtin_setvar_helper(chan, "VALUE", NULL);
+	}
 
-		/*!\note
-		 * Okay, this part is confusing.  Transactions belong to a single database
-		 * handle.  Therefore, when working with transactions, we CANNOT failover
-		 * to multiple DSNs.  We MUST have a single handle all the way through the
-		 * transaction, or else we CANNOT enforce atomicity.
-		 */
-		for (dsn = 0; dsn < 5; dsn++) {
+	/*!\note
+	 * Okay, this part is confusing.  Transactions belong to a single database
+	 * handle.  Therefore, when working with transactions, we CANNOT failover
+	 * to multiple DSNs.  We MUST have a single handle all the way through the
+	 * transaction, or else we CANNOT enforce atomicity.
+	 */
+	for (dsn = 0; dsn < 5; dsn++) {
+		if (!ast_strlen_zero(query->writehandle[dsn])) {
 			if (transactional) {
 				/* This can only happen second time through or greater. */
 				ast_log(LOG_WARNING, "Transactions do not work well with multiple DSNs for 'writehandle'\n");
 			}
 
-			if (!ast_strlen_zero(query->writehandle[dsn])) {
-				if ((obj = ast_odbc_retrieve_transaction_obj(chan, query->writehandle[dsn]))) {
-					transactional = 1;
-				} else {
-					obj = ast_odbc_request_obj(query->writehandle[dsn], 0);
-					transactional = 0;
-				}
-				if (obj && (stmt = ast_odbc_direct_execute(obj, generic_execute, ast_str_buffer(buf)))) {
-					break;
-				}
+			if ((obj = ast_odbc_retrieve_transaction_obj(chan, query->writehandle[dsn]))) {
+				transactional = 1;
+			} else {
+				obj = ast_odbc_request_obj(query->writehandle[dsn], 0);
+				transactional = 0;
+			}
+
+			if (obj && (stmt = ast_odbc_direct_execute(obj, generic_execute, ast_str_buffer(buf)))) {
+				break;
 			}
 
 			if (obj && !transactional) {
@@ -343,9 +344,27 @@ static int acf_odbc_write(struct ast_channel *chan, const char *cmd, char *s, co
 	if (stmt && rows == 0 && ast_str_strlen(insertbuf) != 0) {
 		SQLCloseCursor(stmt);
 		SQLFreeHandle(SQL_HANDLE_STMT, stmt);
-		for (dsn = 0; dsn < 5; dsn++) {
+		if (obj && !transactional) {
+			ast_odbc_release_obj(obj);
+			obj = NULL;
+		}
+
+		for (transactional = 0, dsn = 0; dsn < 5; dsn++) {
 			if (!ast_strlen_zero(query->writehandle[dsn])) {
-				obj = ast_odbc_request_obj(query->writehandle[dsn], 0);
+				if (transactional) {
+					/* This can only happen second time through or greater. */
+					ast_log(LOG_WARNING, "Transactions do not work well with multiple DSNs for 'writehandle'\n");
+				} else if (obj) {
+					ast_odbc_release_obj(obj);
+					obj = NULL;
+				}
+
+				if ((obj = ast_odbc_retrieve_transaction_obj(chan, query->writehandle[dsn]))) {
+					transactional = 1;
+				} else {
+					obj = ast_odbc_request_obj(query->writehandle[dsn], 0);
+					transactional = 0;
+				}
 				if (obj) {
 					stmt = ast_odbc_direct_execute(obj, generic_execute, ast_str_buffer(insertbuf));
 				}
@@ -355,8 +374,6 @@ static int acf_odbc_write(struct ast_channel *chan, const char *cmd, char *s, co
 				SQLRowCount(stmt, &rows);
 				break;
 			}
-			ast_odbc_release_obj(obj);
-			obj = NULL;
 		}
 	} else if (stmt) {
 		status = "SUCCESS";