naiveproxy/base/fuchsia/service_directory.h
2018-08-14 22:19:20 +00:00

70 lines
2.3 KiB
C++

// Copyright 2018 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 BASE_FUCHSIA_SERVICE_DIRECTORY_H_
#define BASE_FUCHSIA_SERVICE_DIRECTORY_H_
#include <lib/zx/channel.h>
#include "base/base_export.h"
#include "base/callback.h"
#include "base/containers/flat_map.h"
#include "base/macros.h"
#include "base/strings/string_piece.h"
#include "base/threading/thread_checker.h"
typedef struct svc_dir svc_dir_t;
namespace base {
namespace fuchsia {
// Directory of FIDL services published for other processes to consume. Services
// published in this directory can be discovered from other processes by name.
// Normally this class should be used by creating a ScopedServiceBinding
// instance. This ensures that the service is unregistered when the
// implementation is destroyed. GetDefault() should be used to get the default
// ServiceDirectory for the current process. The default instance exports
// services via a channel supplied at process creation time.
//
// Not thread-safe. All methods must be called on the thread that created the
// object.
class BASE_EXPORT ServiceDirectory {
public:
// Callback called to connect incoming requests.
using ConnectServiceCallback =
base::RepeatingCallback<void(zx::channel channel)>;
// Creates services directory that will be served over the
// |directory_channel|.
explicit ServiceDirectory(zx::channel directory_channel);
~ServiceDirectory();
// Returns default ServiceDirectory instance for the current process. It
// publishes services to the directory provided by the process creator.
static ServiceDirectory* GetDefault();
void AddService(StringPiece name, ConnectServiceCallback connect_callback);
void RemoveService(StringPiece name);
void RemoveAllServices();
private:
// Called by |svc_dir_| to handle service requests.
static void HandleConnectRequest(void* context,
const char* service_name,
zx_handle_t service_request);
THREAD_CHECKER(thread_checker_);
svc_dir_t* svc_dir_ = nullptr;
base::flat_map<std::string, ConnectServiceCallback> services_;
DISALLOW_COPY_AND_ASSIGN(ServiceDirectory);
};
} // namespace fuchsia
} // namespace base
#endif // BASE_FUCHSIA_SERVICE_DIRECTORY_H_