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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef INCLUDE_PERFETTO_EXT_TRACING_IPC_SERVICE_IPC_HOST_H_
#define INCLUDE_PERFETTO_EXT_TRACING_IPC_SERVICE_IPC_HOST_H_
#include <memory>
#include "perfetto/base/export.h"
#include "perfetto/ext/base/scoped_file.h"
#include "perfetto/ext/base/unix_socket.h"
#include "perfetto/ext/tracing/core/basic_types.h"
#include "perfetto/ext/tracing/core/tracing_service.h"
namespace perfetto {
namespace base {
class TaskRunner;
} // namespace base.
namespace ipc {
class Host;
} // namespace ipc
// Creates an instance of the service (business logic + UNIX socket transport).
// Exposed to:
// The code in the tracing client that will host the service e.g., traced.
// Implemented in:
// src/tracing/ipc/service/service_ipc_host_impl.cc
class PERFETTO_EXPORT_COMPONENT ServiceIPCHost {
public:
static std::unique_ptr<ServiceIPCHost> CreateInstance(
base::TaskRunner*,
TracingService::InitOpts = {});
virtual ~ServiceIPCHost();
// Start listening on the Producer & Consumer ports. Returns false in case of
// failure (e.g., something else is listening on |socket_name|).
virtual bool Start(const char* producer_socket_name,
const char* consumer_socket_name) = 0;
// Like the above, but takes two file descriptors to already bound sockets.
// This is used when building as part of the Android tree, where init opens
// and binds the socket beore exec()-ing us.
virtual bool Start(base::ScopedSocketHandle producer_socket_fd,
base::ScopedSocketHandle consumer_socket_fd) = 0;
// Allows callers to supply preconstructed Hosts.
virtual bool Start(std::unique_ptr<ipc::Host> producer_host,
std::unique_ptr<ipc::Host> consumer_host) = 0;
virtual TracingService* service() const = 0;
protected:
ServiceIPCHost();
private:
ServiceIPCHost(const ServiceIPCHost&) = delete;
ServiceIPCHost& operator=(const ServiceIPCHost&) = delete;
};
} // namespace perfetto
#endif // INCLUDE_PERFETTO_EXT_TRACING_IPC_SERVICE_IPC_HOST_H_
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