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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 CONTENT_RENDERER_PEPPER_PEPPER_BROKER_H_
#define CONTENT_RENDERER_PEPPER_PEPPER_BROKER_H_
#include <stdint.h>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/process/process.h"
#include "base/sync_socket.h"
#include "content/common/content_export.h"
#include "content/renderer/pepper/ppb_broker_impl.h"
#include "ppapi/proxy/proxy_channel.h"
namespace IPC {
struct ChannelHandle;
}
namespace ppapi {
namespace proxy {
class BrokerDispatcher;
}
}
namespace content {
class PluginModule;
// This object is NOT thread-safe.
class CONTENT_EXPORT PepperBrokerDispatcherWrapper {
public:
PepperBrokerDispatcherWrapper();
~PepperBrokerDispatcherWrapper();
bool Init(base::ProcessId broker_pid,
const IPC::ChannelHandle& channel_handle);
int32_t SendHandleToBroker(PP_Instance instance,
base::SyncSocket::Handle handle);
private:
scoped_ptr<ppapi::proxy::BrokerDispatcher> dispatcher_;
scoped_ptr<ppapi::proxy::ProxyChannel::Delegate> dispatcher_delegate_;
};
class PepperBroker : public base::RefCountedThreadSafe<PepperBroker> {
public:
explicit PepperBroker(PluginModule* plugin_module);
// Decrements the references to the broker.
// When there are no more references, this renderer's dispatcher is
// destroyed, allowing the broker to shutdown if appropriate.
// Callers should not reference this object after calling Disconnect().
void Disconnect(PPB_Broker_Impl* client);
// Adds a pending connection to the broker. Balances out Disconnect() calls.
void AddPendingConnect(PPB_Broker_Impl* client);
// Called when the channel to the broker has been established.
void OnBrokerChannelConnected(base::ProcessId broker_pid,
const IPC::ChannelHandle& channel_handle);
// Called when we know whether permission to access the PPAPI broker was
// granted.
void OnBrokerPermissionResult(PPB_Broker_Impl* client, bool result);
private:
friend class base::RefCountedThreadSafe<PepperBroker>;
struct PendingConnection {
PendingConnection();
PendingConnection(const PendingConnection& other);
~PendingConnection();
bool is_authorized;
base::WeakPtr<PPB_Broker_Impl> client;
};
virtual ~PepperBroker();
// Reports failure to all clients that had pending operations.
void ReportFailureToClients(int error_code);
// Connects the plugin to the broker via a pipe.
void ConnectPluginToBroker(PPB_Broker_Impl* client);
scoped_ptr<PepperBrokerDispatcherWrapper> dispatcher_;
// A map of pointers to objects that have requested a connection to the weak
// pointer we can use to reference them. The mapping is needed so we can clean
// up entries for objects that may have been deleted.
typedef std::map<PPB_Broker_Impl*, PendingConnection> ClientMap;
ClientMap pending_connects_;
// Pointer to the associated plugin module.
// Always set and cleared at the same time as the module's pointer to this.
PluginModule* plugin_module_;
DISALLOW_COPY_AND_ASSIGN(PepperBroker);
};
} // namespace content
#endif // CONTENT_RENDERER_PEPPER_PEPPER_BROKER_H_
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