| /* -*- Mode: C; tab-width: 4 -*- |
| * |
| * Copyright (c) 2009 Apple Inc. All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <stdlib.h> |
| #include <assert.h> |
| #include <vproc.h> |
| #include "safe_vproc.h" |
| #include "mDNSDebug.h" |
| #include <TargetConditionals.h> |
| |
| #if defined(VPROC_HAS_TRANSACTIONS) && !TARGET_OS_EMBEDDED |
| |
| static vproc_transaction_t transaction = NULL; |
| |
| void safe_vproc_transaction_begin(void) |
| { |
| if (vproc_transaction_begin) |
| { |
| if (transaction) { LogMsg("safe_vproc_transaction_begin: Already have a transaction"); } |
| else transaction = vproc_transaction_begin(NULL); |
| } |
| } |
| |
| void safe_vproc_transaction_end(void) |
| { |
| if (vproc_transaction_end) |
| { |
| if (transaction) { vproc_transaction_end(NULL, transaction); transaction = NULL; } |
| else LogMsg("safe_vproc_transaction_end: No current transaction"); |
| } |
| } |
| |
| #else |
| |
| #if ! TARGET_OS_EMBEDDED |
| #include <stdio.h> |
| #include <CoreFoundation/CFString.h> |
| |
| CF_EXPORT CFDictionaryRef _CFCopySystemVersionDictionary(void); |
| CF_EXPORT const CFStringRef _kCFSystemVersionBuildVersionKey; |
| #define OSXVers_10_6_SnowLeopard 10 |
| |
| void safe_vproc_transaction_begin(void) |
| { |
| static int majorversion = 0; |
| if (!majorversion) |
| { |
| CFDictionaryRef vers = _CFCopySystemVersionDictionary(); |
| if (vers) |
| { |
| char buildver[256]; |
| CFStringRef cfbuildver = CFDictionaryGetValue(vers, _kCFSystemVersionBuildVersionKey); |
| if (cfbuildver && CFStringGetCString(cfbuildver, buildver, sizeof(buildver), kCFStringEncodingUTF8)) |
| sscanf(buildver, "%d", &majorversion); |
| CFRelease(vers); |
| } |
| if (!majorversion || majorversion >= OSXVers_10_6_SnowLeopard) |
| LogMsg("Compiled without vproc_transaction support"); |
| } |
| } |
| |
| #else |
| |
| void safe_vproc_transaction_begin(void) { } |
| |
| #endif |
| |
| void safe_vproc_transaction_end(void) { } |
| |
| #endif |