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
|
// Copyright (c) 2006, 2007 Julio M. Merino Vidal
// Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
// Copyright (c) 2009 Boris Schaeling
// Copyright (c) 2010 Felipe Tanus, Boris Schaeling
// Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/process.hpp>
#include <string>
namespace bp = boost::process;
int main()
{
//
bp::system(
"test.exe",
bp::std_out > stdout, //forward
bp::std_err.close(), //close
bp::std_in < bp::null //null in
);
boost::filesystem::path p = "input.txt";
bp::system(
"test.exe",
(bp::std_out & bp::std_err) > "output.txt", //redirect both to one file
bp::std_in < p //read input from file
);
{
bp::opstream p1;
bp::ipstream p2;
bp::system(
"test.exe",
bp::std_out > p2,
bp::std_in < p1
);
p1 << "my_text";
int i = 0;
p2 >> i;
}
{
boost::asio::io_context io_context;
bp::async_pipe p1(io_context);
bp::async_pipe p2(io_context);
bp::system(
"test.exe",
bp::std_out > p2,
bp::std_in < p1,
io_context,
bp::on_exit([&](int exit, const std::error_code& ec_in)
{
p1.async_close();
p2.async_close();
})
);
std::vector<char> in_buf;
std::string value = "my_string";
boost::asio::async_write(p1, boost::asio::buffer(value), []( const boost::system::error_code&, std::size_t){});
boost::asio::async_read (p2, boost::asio::buffer(in_buf), []( const boost::system::error_code&, std::size_t){});
}
{
boost::asio::io_context io_context;
std::vector<char> in_buf;
std::string value = "my_string";
bp::system(
"test.exe",
bp::std_out > bp::buffer(in_buf),
bp::std_in < bp::buffer(value)
);
}
{
boost::asio::io_context io_context;
std::future<std::vector<char>> in_buf;
std::future<void> write_fut;
std::string value = "my_string";
bp::system(
"test.exe",
bp::std_out > in_buf,
bp::std_in < bp::buffer(value) > write_fut
);
write_fut.get();
in_buf.get();
}
}
|
