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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:
     22   explicit LockingResourceReleaser(PP_Resource resource)
     23       : resource_(resource) {
     24   }
     25   ~LockingResourceReleaser() {
     26     ProxyAutoLock lock;
     27     PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(resource_);
     28   }
     29 
     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