The Tor Browser: ipc/chromium/src/base/scoped_nsautorelease

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright (c) 2008 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     5 #ifndef BASE_SCOPED_NSAUTORELEASE_POOL_H_

     6 #define BASE_SCOPED_NSAUTORELEASE_POOL_H_

     8 #include "base/basictypes.h"

    10 #if defined(OS_MACOSX)

    11 #if defined(__OBJC__)

    12 @class NSAutoreleasePool;

    13 #else  // __OBJC__

    14 class NSAutoreleasePool;

    15 #endif  // __OBJC__

    16 #endif  // OS_MACOSX

    18 namespace base {

    20 // On the Mac, ScopedNSAutoreleasePool allocates an NSAutoreleasePool when

    21 // instantiated and sends it a -drain message when destroyed.  This allows an

    22 // autorelease pool to be maintained in ordinary C++ code without bringing in

    23 // any direct Objective-C dependency.

    24 //

    25 // On other platforms, ScopedNSAutoreleasePool is an empty object with no

    26 // effects.  This allows it to be used directly in cross-platform code without

    27 // ugly #ifdefs.

    28 class ScopedNSAutoreleasePool {

    29  public:

    30 #if !defined(OS_MACOSX)

    31   ScopedNSAutoreleasePool() {}

    32   void Recycle() { }

    33 #else  // OS_MACOSX

    34   ScopedNSAutoreleasePool();

    35   ~ScopedNSAutoreleasePool();

    37   // Clear out the pool in case its position on the stack causes it to be

    38   // alive for long periods of time (such as the entire length of the app).

    39   // Only use then when you're certain the items currently in the pool are

    40   // no longer needed.

    41   void Recycle();

    42  private:

    43   NSAutoreleasePool* autorelease_pool_;

    44 #endif  // OS_MACOSX

    46  private:

    47   DISALLOW_COPY_AND_ASSIGN(ScopedNSAutoreleasePool);

    48 };

    50 }  // namespace base

    52 #endif  // BASE_SCOPED_NSAUTORELEASE_POOL_H_

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