1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* 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 <android-base/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 status "
"command. A value of zero means wait indefinetly");
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 1;
}
auto instance = config->ForDefaultInstance();
auto monitor_path = instance.launcher_monitor_socket_path();
if (monitor_path.empty()) {
LOG(ERROR) << "No path to launcher monitor found";
return 2;
}
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 3;
}
auto request = cvd::LauncherAction::kStatus;
auto bytes_sent = monitor_socket->Send(&request, sizeof(request), 0);
if (bytes_sent < 0) {
LOG(ERROR) << "Error sending launcher monitor the status command: "
<< monitor_socket->StrError();
return 4;
}
// 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 5;
}
if (selected == 0) {
LOG(ERROR) << "Timeout expired waiting for launcher monitor to respond";
return 6;
}
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 7;
}
if (response != cvd::LauncherResponse::kSuccess) {
LOG(ERROR) << "Received '" << static_cast<char>(response)
<< "' response from launcher monitor";
return 8;
}
LOG(INFO) << "run_cvd is active.";
return 0;
}
|
