diff options
Diffstat (limited to 'ipc/chromium/src/base/scoped_nsautorelease_pool.h')
-rw-r--r-- | ipc/chromium/src/base/scoped_nsautorelease_pool.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/ipc/chromium/src/base/scoped_nsautorelease_pool.h b/ipc/chromium/src/base/scoped_nsautorelease_pool.h new file mode 100644 index 0000000000..26c032e949 --- /dev/null +++ b/ipc/chromium/src/base/scoped_nsautorelease_pool.h @@ -0,0 +1,55 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +// 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. + +#ifndef BASE_SCOPED_NSAUTORELEASE_POOL_H_ +#define BASE_SCOPED_NSAUTORELEASE_POOL_H_ + +#include "base/basictypes.h" + +#if defined(OS_MACOSX) +# if defined(__OBJC__) +@class NSAutoreleasePool; +# else // __OBJC__ +class NSAutoreleasePool; +# endif // __OBJC__ +#endif // OS_MACOSX + +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(OS_MACOSX) + ScopedNSAutoreleasePool() {} + void Recycle() {} +#else // OS_MACOSX + 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(); + + private: + NSAutoreleasePool* autorelease_pool_; +#endif // OS_MACOSX + + private: + DISALLOW_COPY_AND_ASSIGN(ScopedNSAutoreleasePool); +}; + +} // namespace base + +#endif // BASE_SCOPED_NSAUTORELEASE_POOL_H_ |