110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
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//
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// Copyright 2016 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#if defined(MTK_STACK_CONFIG_LOG) && (MTK_STACK_CONFIG_LOG == TRUE)
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#define LOG_TAG "mtk.bt.logtool-watcher"
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#include "bt_logmode_watcher.h"
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#include <errno.h>
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#include <sys/prctl.h>
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#include <csignal>
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#include "chre_log.h"
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#include "osi/include/compat.h"
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namespace vendor {
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namespace mediatek {
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namespace bt {
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namespace stack {
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int BtLogModeWatcher::Start(const std::string &thread_name,
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const std::string& socket_name,
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android::chre::SocketServer::ClientMessageCallback cb,
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SocketChangeCallback socket_change_cb) {
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thread_name_ = thread_name;
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server_ = nullptr;
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terminate_ = false;
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// Bug fix: need a copy for socket_name here and in ThreadRoutine()
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// To avoid socket_name is freed after the invoking function out of scope
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thread_ = std::thread([this, socket_name, cb, socket_change_cb]() {
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ThreadRoutine(std::move(socket_name), cb, socket_change_cb);
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});
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if (!thread_.joinable()) {
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return -1;
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} else {
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return 0;
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}
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}
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void BtLogModeWatcher::Stop() {
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terminate_ = true;
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if(server_) {
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LOGI("Stop server");
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server_->StopPoll();
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} else {
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LOGI("Stop server, but thread may already terminated");
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}
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if (std::this_thread::get_id() != thread_.get_id()) {
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thread_.join();
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}
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}
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void BtLogModeWatcher::ThreadRoutine(std::string socket_name,
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android::chre::SocketServer::ClientMessageCallback cb,
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SocketChangeCallback socket_change_cb) {
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const int kThreadNameLenMax(16);
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char name_buffer[kThreadNameLenMax+1] = {'0'};
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size_t copy_len = thread_name_.length() < kThreadNameLenMax ?
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thread_name_.length() : kThreadNameLenMax;
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thread_name_.copy(name_buffer, copy_len);
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pid_t tid = gettid();
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if (prctl(PR_SET_NAME, (unsigned long)name_buffer) == -1) {
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LOGE("unable to set thread name: %s for %s",
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name_buffer, strerror(errno));
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} else {
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LOGI("thread id %d, thread name %s started", tid, name_buffer);
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}
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/** M: Bug fix for ALPS04301211: restart socket if broken @{ */
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int i = 0;
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while(!terminate_) {
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server_ = new android::chre::SocketServer();
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if (server_) {
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socket_change_cb(server_);
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LOGI("new socket created [#%d]", i);
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server_->run(socket_name.c_str(), true, cb);
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// run done, run next loop if terminate_ is false
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LOGI("delete socket [#%d]", i);
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delete server_;
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server_ = nullptr;
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}
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i++;
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if(!terminate_) {
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usleep(500000); // to prevent continually fail
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}
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}
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/** @} */
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LOGI("thread id %d, thread name %s exited", tid, name_buffer);
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}
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} // namespace stack
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} // namespace bt
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} // namespace mediatek
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} // namespace vendor
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#endif
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