// Copyright (c) 2008 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file.
#ifdefined(XP_DARWIN) # if defined(__OBJC__)
@class NSAutoreleasePool; # else// __OBJC__ class NSAutoreleasePool; # endif // __OBJC__ #endif// XP_DARWIN
namespace base {
// On the Mac, ScopedNSAutoreleasePool allocates an NSAutoreleasePool when // instantiated and sends it a -drain message when destroyed. This allows an // autorelease pool to be maintained in ordinary C++ code without bringing in // any direct Objective-C dependency. // // On other platforms, ScopedNSAutoreleasePool is an empty object with no // effects. This allows it to be used directly in cross-platform code without // ugly #ifdefs. class ScopedNSAutoreleasePool { public: #if !defined(XP_DARWIN)
ScopedNSAutoreleasePool() {} void Recycle() {} #else// XP_DARWIN
ScopedNSAutoreleasePool();
~ScopedNSAutoreleasePool();
// Clear out the pool in case its position on the stack causes it to be // alive for long periods of time (such as the entire length of the app). // Only use then when you're certain the items currently in the pool are // no longer needed. void Recycle();
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