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1 // Copyright (c) 2013 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.
4 
5 #ifndef PPAPI_PROXY_LOCKING_RESOURCE_RELEASER_H_
6 #define PPAPI_PROXY_LOCKING_RESOURCE_RELEASER_H_
7 
8 #include "ppapi/shared_impl/ppapi_globals.h"
9 #include "ppapi/shared_impl/proxy_lock.h"
10 #include "ppapi/shared_impl/resource_tracker.h"
11 
12 namespace ppapi {
13 namespace proxy {
14 
15 // LockingResourceReleaser is a simple RAII class for releasing a resource at
16 // the end of scope. This acquires the ProxyLock before releasing the resource.
17 // It is for use in unit tests. Most proxy or implementation code should use
18 // ScopedPPResource instead. Unit tests sometimes can't use ScopedPPResource
19 // because it asserts that the ProxyLock is already held.
20 class LockingResourceReleaser {
21  public:
LockingResourceReleaser(PP_Resource resource)22   explicit LockingResourceReleaser(PP_Resource resource)
23       : resource_(resource) {
24   }
~LockingResourceReleaser()25   ~LockingResourceReleaser() {
26     ProxyAutoLock lock;
27     PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(resource_);
28   }
29 
get()30   PP_Resource get() { return resource_; }
31 
32  private:
33   PP_Resource resource_;
34 
35   DISALLOW_COPY_AND_ASSIGN(LockingResourceReleaser);
36 };
37 
38 }  // namespace proxy
39 }  // namespace ppapi
40 
41 #endif  // PPAPI_PROXY_LOCKING_RESOURCE_RELEASER_H_
42