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Diffstat (limited to 'host/commands/stop_cvd/main.cc')
-rw-r--r--host/commands/stop_cvd/main.cc164
1 files changed, 0 insertions, 164 deletions
diff --git a/host/commands/stop_cvd/main.cc b/host/commands/stop_cvd/main.cc
deleted file mode 100644
index e2bb9e1b..00000000
--- a/host/commands/stop_cvd/main.cc
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <inttypes.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <signal.h>
-
-#include <algorithm>
-#include <cstdlib>
-#include <fstream>
-#include <iomanip>
-#include <memory>
-#include <sstream>
-#include <string>
-#include <vector>
-
-#include <gflags/gflags.h>
-#include <glog/logging.h>
-
-#include "common/libs/fs/shared_fd.h"
-#include "common/libs/fs/shared_select.h"
-#include "common/libs/utils/environment.h"
-#include "host/commands/run_cvd/runner_defs.h"
-#include "host/libs/config/cuttlefish_config.h"
-#include "host/libs/vm_manager/vm_manager.h"
-
-DEFINE_int32(wait_for_launcher, 5,
- "How many seconds to wait for the launcher to respond to the stop "
- "command. A value of zero means wait indefinetly");
-
-namespace {
-// Gets a set of the possible process groups of a previous launch
-std::set<pid_t> GetCandidateProcessGroups() {
- std::string cmd = "fuser";
- // Add the instance directory
- auto instance_dir = cvd::StringFromEnv("HOME", ".") + "/cuttlefish_runtime";
- cmd += " " + instance_dir;
- // Add files in instance dir
- cmd += " " + instance_dir + "/*";
- // Add files in the tombstone directory
- cmd += " " + instance_dir + "/tombstones/*";
- // Add files in the internal directory
- cmd += ((" " + instance_dir + "/") + vsoc::kInternalDirName) + "/*";
- // Add the shared memory file
- cmd += " " + vsoc::GetPerInstanceDefault("/dev/shm/cvd-");
- std::shared_ptr<FILE> cmd_out(popen(cmd.c_str(), "r"), pclose);
- if (!cmd_out) {
- LOG(ERROR) << "Unable to execute '" << cmd << "': " << strerror(errno);
- return {};
- }
- int64_t pid;
- std::set<pid_t> ret{};
- while(fscanf(cmd_out.get(), "%" PRId64, &pid) != EOF) {
- pid_t pgid = getpgid(static_cast<pid_t>(pid));
- if (pgid < 0) {
- LOG(ERROR) << "Unable to get process group of " << pid << ": "
- << strerror(errno);
- continue;
- }
- ret.insert(pgid);
- }
- // The process group of stop_cvd should not be killed
- ret.erase(getpgrp());
- return ret;
-}
-
-int FallBackStop() {
- auto exit_code = 1; // Having to fallback is an error
-
- auto process_groups = GetCandidateProcessGroups();
- for (auto pgid: process_groups) {
- LOG(INFO) << "Sending SIGKILL to process group " << pgid;
- auto retval = killpg(pgid, SIGKILL);
- if (retval < 0) {
- LOG(ERROR) << "Failed to kill process group " << pgid << ": "
- << strerror(errno);
- exit_code |= 4;
- }
- }
-
- return exit_code;
-}
-} // anonymous namespace
-
-int main(int argc, char** argv) {
- ::android::base::InitLogging(argv, android::base::StderrLogger);
- google::ParseCommandLineFlags(&argc, &argv, true);
-
- auto config = vsoc::CuttlefishConfig::Get();
- if (!config) {
- LOG(ERROR) << "Failed to obtain config object";
- return FallBackStop();
- }
-
- auto monitor_path = config->launcher_monitor_socket_path();
- if (monitor_path.empty()) {
- LOG(ERROR) << "No path to launcher monitor found";
- return FallBackStop();
- }
- auto monitor_socket = cvd::SharedFD::SocketLocalClient(monitor_path.c_str(),
- false, SOCK_STREAM);
- if (!monitor_socket->IsOpen()) {
- LOG(ERROR) << "Unable to connect to launcher monitor at " << monitor_path
- << ": " << monitor_socket->StrError();
- return FallBackStop();
- }
- auto request = cvd::LauncherAction::kStop;
- auto bytes_sent = monitor_socket->Send(&request, sizeof(request), 0);
- if (bytes_sent < 0) {
- LOG(ERROR) << "Error sending launcher monitor the stop command: "
- << monitor_socket->StrError();
- return FallBackStop();
- }
- // Perform a select with a timeout to guard against launcher hanging
- cvd::SharedFDSet read_set;
- read_set.Set(monitor_socket);
- struct timeval timeout = {FLAGS_wait_for_launcher, 0};
- int selected = cvd::Select(&read_set, nullptr, nullptr,
- FLAGS_wait_for_launcher <= 0 ? nullptr : &timeout);
- if (selected < 0){
- LOG(ERROR) << "Failed communication with the launcher monitor: "
- << strerror(errno);
- return FallBackStop();
- }
- if (selected == 0) {
- LOG(ERROR) << "Timeout expired waiting for launcher monitor to respond";
- return FallBackStop();
- }
- cvd::LauncherResponse response;
- auto bytes_recv = monitor_socket->Recv(&response, sizeof(response), 0);
- if (bytes_recv < 0) {
- LOG(ERROR) << "Error receiving response from launcher monitor: "
- << monitor_socket->StrError();
- return FallBackStop();
- }
- if (response != cvd::LauncherResponse::kSuccess) {
- LOG(ERROR) << "Received '" << static_cast<char>(response)
- << "' response from launcher monitor";
- return FallBackStop();
- }
- LOG(INFO) << "Successfully stopped device";
- return 0;
-}