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// Copyright (c) 2012 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 PPAPI_PROXY_PROXY_COMPLETION_CALLBACK_FACTORY_H_
#define PPAPI_PROXY_PROXY_COMPLETION_CALLBACK_FACTORY_H_
#include "base/logging.h"
#include "base/message_loop/message_loop.h"
#include "ppapi/cpp/completion_callback.h"
#include "ppapi/utility/completion_callback_factory.h"
namespace ppapi {
namespace proxy {
// This class is just like pp::NonThreadSafeThreadTraits but rather than using
// pp::Module::core (which doesn't exist), it uses Chrome threads which do.
class ProxyNonThreadSafeThreadTraits {
public:
class RefCount {
public:
RefCount() : ref_(0) {
#ifndef NDEBUG
message_loop_ = base::MessageLoop::current();
#endif
}
~RefCount() {
#ifndef NDEBUG
DCHECK(message_loop_ == base::MessageLoop::current());
#endif
}
int32_t AddRef() {
#ifndef NDEBUG
DCHECK(message_loop_ == base::MessageLoop::current());
#endif
return ++ref_;
}
int32_t Release() {
#ifndef NDEBUG
DCHECK(message_loop_ == base::MessageLoop::current());
#endif
DCHECK(ref_ > 0);
return --ref_;
}
private:
int32_t ref_;
#ifndef NDEBUG
base::MessageLoop* message_loop_;
#endif
};
// No-op lock class.
class Lock {
public:
Lock() {}
~Lock() {}
void Acquire() {}
void Release() {}
};
// No-op AutoLock class.
class AutoLock {
public:
explicit AutoLock(Lock&) {}
~AutoLock() {}
};
};
template<typename T>
class ProxyCompletionCallbackFactory
: public pp::CompletionCallbackFactory<T, ProxyNonThreadSafeThreadTraits> {
public:
ProxyCompletionCallbackFactory()
: pp::CompletionCallbackFactory<T, ProxyNonThreadSafeThreadTraits>() {}
ProxyCompletionCallbackFactory(T* t)
: pp::CompletionCallbackFactory<T, ProxyNonThreadSafeThreadTraits>(t) {}
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_PROXY_COMPLETION_CALLBACK_FACTORY_H_
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