base/fuchsia/filtered_service_directory.cc

   1 // Copyright 2018 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/fuchsia/filtered_service_directory.h"
   6
   7 #include <lib/fdio/directory.h>
   8 #include <utility>
   9
  10 #include "base/bind.h"
  11 #include "base/fuchsia/fuchsia_logging.h"
  12 #include "base/fuchsia/service_directory_client.h"
  13
  14 namespace base {
  15 namespace fuchsia {
  16
  17 FilteredServiceDirectory::FilteredServiceDirectory(
  18     const ServiceDirectoryClient* directory)
  19     : directory_(directory) {
  20   outgoing_directory_ = std::make_unique<ServiceDirectory>(
  21       outgoing_directory_client_.NewRequest());
  22 }
  23
  24 FilteredServiceDirectory::~FilteredServiceDirectory() {
  25   outgoing_directory_->RemoveAllServices();
  26 }
  27
  28 void FilteredServiceDirectory::AddService(const char* service_name) {
  29   outgoing_directory_->AddServiceUnsafe(
  30       service_name,
  31       base::BindRepeating(&FilteredServiceDirectory::HandleRequest,
  32                           base::Unretained(this), service_name));
  33 }
  34
  35 fidl::InterfaceHandle<::fuchsia::io::Directory>
  36 FilteredServiceDirectory::ConnectClient() {
  37   fidl::InterfaceHandle<::fuchsia::io::Directory> client;
  38
  39   // ServiceDirectory puts public services under ./svc . Connect to that
  40   // directory and return client handle for the connection,
  41   zx_status_t status =
  42       fdio_service_connect_at(outgoing_directory_client_.channel().get(), "svc",
  43                               client.NewRequest().TakeChannel().release());
  44   ZX_CHECK(status == ZX_OK, status) << "fdio_service_connect_at()";
  45
  46   return client;
  47 }
  48
  49 void FilteredServiceDirectory::HandleRequest(const char* service_name,
  50                                              zx::channel channel) {
  51   directory_->ConnectToServiceUnsafe(service_name, std::move(channel));
  52 }
  53
  54 }  // namespace fuchsia
  55 }  // namespace base