2 * Copyright (C) 2016 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
22 #include <android-base/logging.h>
23 #include <android-base/macros.h>
24 #include <binder/IPCThreadState.h>
25 #include <binder/IServiceManager.h>
26 #include <binder/ProcessState.h>
27 #include <utils/String16.h>
29 #include <looper_backed_event_loop.h>
32 using android::net::wifi::IWificond;
36 class ScopedSignalHandler final {
38 ScopedSignalHandler(android::wificond::LooperBackedEventLoop* event_loop) {
39 if (s_event_loop_ != nullptr) {
40 LOG(FATAL) << "Only instantiate one signal handler per process!";
42 s_event_loop_ = event_loop;
43 std::signal(SIGINT, &ScopedSignalHandler::LeaveLoop);
44 std::signal(SIGTERM, &ScopedSignalHandler::LeaveLoop);
47 ~ScopedSignalHandler() {
48 std::signal(SIGINT, SIG_DFL);
49 std::signal(SIGTERM, SIG_DFL);
50 s_event_loop_ = nullptr;
54 static android::wificond::LooperBackedEventLoop* s_event_loop_;
55 static void LeaveLoop(int signal) {
56 if (s_event_loop_ != nullptr) {
57 s_event_loop_->TriggerExit();
61 DISALLOW_COPY_AND_ASSIGN(ScopedSignalHandler);
64 android::wificond::LooperBackedEventLoop*
65 ScopedSignalHandler::s_event_loop_ = nullptr;
69 void OnBinderReadReady(int fd) {
70 android::IPCThreadState::self()->handlePolledCommands();
73 int main(int argc, char** argv) {
74 android::base::InitLogging(argv);
75 LOG(INFO) << "wificond is starting up...";
76 std::unique_ptr<android::wificond::LooperBackedEventLoop> event_dispatcher_(
77 new android::wificond::LooperBackedEventLoop());
78 ScopedSignalHandler scoped_signal_handler(event_dispatcher_.get());
81 android::ProcessState::self()->setThreadPoolMaxThreadCount(0);
82 android::IPCThreadState::self()->disableBackgroundScheduling(true);
83 int err = android::IPCThreadState::self()->setupPolling(&binder_fd);
84 CHECK_EQ(err, 0) << "Error setting up binder polling: " << err;
85 CHECK_GE(binder_fd, 0) << "Invalid binder FD: " << binder_fd;
86 if (!event_dispatcher_->WatchFileDescriptor(
88 android::wificond::EventLoop::kModeInput,
89 &OnBinderReadReady)) {
90 LOG(FATAL) << "Failed to watch binder FD";
92 android::sp<android::IServiceManager> sm = android::defaultServiceManager();
93 CHECK_EQ(sm != NULL, true) << "Could not obtain IServiceManager";
94 android::sp<android::IBinder> server = new android::wificond::Server();
95 sm->addService(android::String16("wificond"), server);
97 event_dispatcher_->Poll();
98 LOG(INFO) << "Leaving the loop...";