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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
#include <iostream>
#include <string>
#include <thread>
#include <boost/asio/steady_timer.hpp>
#include <boost/process/v2/environment.hpp>
extern char **environ;
#if defined(BOOST_PROCESS_V2_WINDOWS)
#include <windows.h>
#else
#include <unistd.h>
#endif
int main(int argc, char * argv[])
{
std::string mode = argv[1];
if (mode == "exit-code")
return std::stoi(argv[2]);
else if (mode == "sleep")
{
const auto delay = std::chrono::milliseconds(std::stoi(argv[2]));
std::this_thread::sleep_for(delay);
return 0;
}
else if (mode == "print-args")
for (auto i = 0; i < argc; i++)
{
std::cout << argv[i] << std::endl;
std::cerr << argv[i] << std::endl;
if (!std::cout || !std::cerr)
return 1;
}
else if (mode == "echo")
std::cout << std::cin.rdbuf();
else if (mode == "print-cwd")
{
#if defined(BOOST_PROCESS_V2_WINDOWS)
wchar_t buf[65535];
const auto sz = ::GetCurrentDirectoryW(sizeof(buf), buf);
std::wcout << boost::process::v2::wstring_view(buf, sz) << std::flush;
#else
char buf[65535];
printf(::getcwd(buf, sizeof(buf)));
#endif
return 0;
}
else if (mode == "check-eof")
{
std::string st;
std::cin >> st;
return std::cin.eof() ? 0 : 1;
}
else if (mode == "print-env")
{
auto p = ::getenv(argv[2]);
if (p && *p)
printf("%s", p);
else
{
printf("Can't find %s in environment\n", argv[2]);
for (auto e = environ; e != nullptr; e++)
printf(" %s\n", *e);
return 3;
}
}
#if defined(BOOST_PROCESS_V2_WINDOWS)
else if (mode == "showwindow")
{
STARTUPINFO si;
GetStartupInfo(&si);
return static_cast<int>(si.wShowWindow);
}
#endif
else if (mode == "sigterm")
{
boost::asio::io_context ctx;
boost::asio::steady_timer tim{ctx, std::chrono::seconds(10)};
static boost::asio::steady_timer * tim_p = &tim;
#if defined(BOOST_PROCESS_V2_WINDOWS)
SetConsoleCtrlHandler(
[](DWORD kind)
{
if (kind == CTRL_CLOSE_EVENT)
{
// windows doesn't like us doing anything else
::exit(0);
if (tim_p != nullptr)
tim_p->cancel();
return TRUE;
}
else
return FALSE;
}, TRUE);
#else
signal(SIGTERM, [](int) { if (tim_p != nullptr) tim_p->cancel();});
#endif
boost::system::error_code ec;
tim.async_wait([&](boost::system::error_code ec_) { ec = ec_; });
ctx.run();
tim_p = nullptr;
return ec ? EXIT_SUCCESS : 32;
}
else if (mode == "sigint")
{
boost::asio::io_context ctx;
boost::asio::steady_timer tim{ctx, std::chrono::seconds(10)};
static boost::asio::steady_timer * tim_p = &tim;
#if defined(BOOST_PROCESS_V2_WINDOWS)
SetConsoleCtrlHandler(NULL, FALSE);
auto res = SetConsoleCtrlHandler(
[](DWORD kind)
{
if (kind == CTRL_C_EVENT)
{
if (tim_p != nullptr)
tim_p->cancel();
return TRUE;
}
else
return FALSE;
}, TRUE);
BOOST_ASSERT(res != FALSE);
#else
signal(SIGINT, [](int) { if (tim_p != nullptr) tim_p->cancel();});
#endif
boost::system::error_code ec;
tim.async_wait([&](boost::system::error_code ec_) { ec = ec_; });
ctx.run();
tim_p = nullptr;
return ec ? EXIT_SUCCESS : 33;
}
else
return 34;
return 0;
}
|
