blob: a7247e2a1d7daa1e5a1989a459e327f8bc94302d [file] [log] [blame]
// Copyright 2014 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.
#include <memory>
#include <string>
#include "base/basictypes.h"
#include "base/scoped_ptr_hash_map.h"
#include "base/threading/thread_checker.h"
#include "cobalt/media/base/cdm_promise.h"
#include "cobalt/media/base/media_export.h"
#include "starboard/types.h"
namespace cobalt {
namespace media {
// Helps convert CdmPromises to an integer identifier and vice versa. The
// integer identifier is needed where we cannot pass CdmPromises through, such
// as PPAPI, IPC and JNI.
class MEDIA_EXPORT CdmPromiseAdapter {
// Takes ownership of |promise| and returns an integer promise ID.
uint32_t SavePromise(std::unique_ptr<media::CdmPromise> promise);
// Takes the promise for |promise_id|, sanity checks its |type|, and resolves
// it with |result|.
template <typename... T>
void ResolvePromise(uint32_t promise_id, const T&... result);
// Takes the promise for |promise_id| and rejects it with |exception_code|,
// |system_code| and |error_message|.
void RejectPromise(uint32_t promise_id, MediaKeys::Exception exception_code,
uint32_t system_code, const std::string& error_message);
// Rejects and clears all |promises_|.
void Clear();
// A map between promise IDs and CdmPromises. It owns the CdmPromises.
typedef base::ScopedPtrHashMap<uint32_t, std::unique_ptr<CdmPromise>>
// Finds, takes the ownership of and returns the promise for |promise_id|.
// Returns null if no promise can be found.
std::unique_ptr<CdmPromise> TakePromise(uint32_t promise_id);
uint32_t next_promise_id_;
PromiseMap promises_;
base::ThreadChecker thread_checker_;
} // namespace media
} // namespace cobalt