naiveproxy/base/fuchsia/services_directory.cc
2018-08-11 05:35:24 +00:00

85 lines
2.6 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.
#include "base/fuchsia/services_directory.h"
#include <lib/async/default.h>
#include <lib/svc/dir.h>
#include <zircon/process.h>
#include <zircon/processargs.h>
#include "base/fuchsia/fuchsia_logging.h"
#include "base/message_loop/message_loop_current.h"
#include "base/no_destructor.h"
namespace base {
namespace fuchsia {
ServicesDirectory::ServicesDirectory(ScopedZxHandle directory_request) {
zx_status_t status = svc_dir_create(async_get_default(),
directory_request.release(), &svc_dir_);
ZX_CHECK(status == ZX_OK, status);
}
ServicesDirectory::~ServicesDirectory() {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
DCHECK(services_.empty());
zx_status_t status = svc_dir_destroy(svc_dir_);
ZX_DCHECK(status == ZX_OK, status);
}
// static
ServicesDirectory* ServicesDirectory::GetDefault() {
static base::NoDestructor<ServicesDirectory> directory(
ScopedZxHandle(zx_get_startup_handle(PA_DIRECTORY_REQUEST)));
return directory.get();
}
void ServicesDirectory::AddService(StringPiece name,
ConnectServiceCallback connect_callback) {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
DCHECK(services_.find(name) == services_.end());
std::string name_str = name.as_string();
services_[name_str] = connect_callback;
zx_status_t status =
svc_dir_add_service(svc_dir_, "public", name_str.c_str(), this,
&ServicesDirectory::HandleConnectRequest);
ZX_DCHECK(status == ZX_OK, status);
}
void ServicesDirectory::RemoveService(StringPiece name) {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
std::string name_str = name.as_string();
auto it = services_.find(name_str);
DCHECK(it != services_.end());
services_.erase(it);
zx_status_t status =
svc_dir_remove_service(svc_dir_, "public", name_str.c_str());
ZX_DCHECK(status == ZX_OK, status);
}
// static
void ServicesDirectory::HandleConnectRequest(void* context,
const char* service_name,
zx_handle_t service_request) {
auto* directory = reinterpret_cast<ServicesDirectory*>(context);
DCHECK_CALLED_ON_VALID_THREAD(directory->thread_checker_);
auto it = directory->services_.find(service_name);
// HandleConnectRequest() is expected to be called only for registered
// services.
DCHECK(it != directory->services_.end());
it->second.Run(ScopedZxHandle(service_request));
}
} // namespace fuchsia
} // namespace base