spawn.cpp
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// 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)
#define BOOST_TEST_MAIN
#define BOOST_TEST_IGNORE_SIGCHLD
#include <boost/test/included/unit_test.hpp>
#include <boost/system/error_code.hpp>
#include <boost/asio.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/process/error.hpp>
#include <boost/process/io.hpp>
#include <boost/process/args.hpp>
#include <boost/process/spawn.hpp>
#include <boost/process/async_pipe.hpp>
#include <boost/process/async.hpp>
#include <system_error>
#include <boost/process/filesystem.hpp>
#include <string>
#include <istream>
#include <cstdlib>
#if defined(BOOST_WINDOWS_API)
# include <windows.h>
typedef boost::asio::windows::stream_handle pipe_end;
#elif defined(BOOST_POSIX_API)
# include <sys/wait.h>
# include <unistd.h>
typedef boost::asio::posix::stream_descriptor pipe_end;
#endif
namespace fs = boost::process::filesystem;
namespace bp = boost::process;
BOOST_AUTO_TEST_CASE(sync_spawn, *boost::unit_test::timeout(5))
{
using boost::unit_test::framework::master_test_suite;
bp::ipstream is;
std::error_code ec;
bp::spawn(
master_test_suite().argv[1],
bp::args+={"test", "--echo-stdout", "hello"},
bp::std_out > is,
ec
);
BOOST_CHECK(!ec);
std::string s;
BOOST_TEST_CHECKPOINT("Starting read");
is >> s;
BOOST_TEST_CHECKPOINT("Finished read");
BOOST_CHECK_EQUAL(s, "hello");
}
struct read_handler
{
boost::asio::streambuf &buffer_;
read_handler(boost::asio::streambuf &buffer) : buffer_(buffer) {}
void operator()(const boost::system::error_code &ec, std::size_t size)
{
std::istream is(&buffer_);
std::string line;
std::getline(is, line);
BOOST_CHECK(boost::algorithm::starts_with(line, "abc"));
}
};
BOOST_AUTO_TEST_CASE(async_spawn, *boost::unit_test::timeout(2))
{
using boost::unit_test::framework::master_test_suite;
boost::asio::io_context io_context;
bp::async_pipe p(io_context);
std::error_code ec;
bp::spawn(
master_test_suite().argv[1],
"test", "--echo-stdout", "abc",
bp::std_out > p,
ec
);
BOOST_REQUIRE(!ec);
boost::asio::streambuf buffer;
boost::asio::async_read_until(p, buffer, '\n',
read_handler(buffer));
io_context.run();
}