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Having kyua in the base system will simplify automated testing in CI and eliminates bootstrapping issues on new platforms. The build of kyua is controlled by WITH(OUT)_TESTS_SUPPORT. Reviewed by: emaste Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D24103
110 lines
4 KiB
C++
110 lines
4 KiB
C++
// Copyright 2010 The Kyua Authors.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#if !defined(UTILS_PROCESS_CHILD_IPP)
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#define UTILS_PROCESS_CHILD_IPP
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#include <cstdlib>
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#include "utils/process/child.hpp"
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namespace utils {
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namespace process {
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/// Spawns a new subprocess and redirects its stdout and stderr to files.
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///
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/// If the subprocess cannot be completely set up for any reason, it attempts to
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/// dump an error message to its stderr channel and it then calls std::abort().
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///
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/// \param hook The function to execute in the subprocess. Must not return.
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/// \param stdout_file The name of the file in which to store the stdout.
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/// \param stderr_file The name of the file in which to store the stderr.
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///
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/// \return A new child object, returned as a dynamically-allocated object
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/// because children classes are unique and thus noncopyable.
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///
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/// \throw process::system_error If the process cannot be spawned due to a
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/// system call error.
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template< typename Hook >
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std::auto_ptr< child >
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child::fork_files(Hook hook, const fs::path& stdout_file,
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const fs::path& stderr_file)
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{
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std::auto_ptr< child > child = fork_files_aux(stdout_file, stderr_file);
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if (child.get() == NULL) {
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try {
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hook();
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std::abort();
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} catch (const std::runtime_error& e) {
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detail::report_error_and_abort(e);
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} catch (...) {
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detail::report_error_and_abort();
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}
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}
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return child;
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}
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/// Spawns a new subprocess and multiplexes and captures its stdout and stderr.
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///
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/// If the subprocess cannot be completely set up for any reason, it attempts to
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/// dump an error message to its stderr channel and it then calls std::abort().
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///
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/// \param hook The function to execute in the subprocess. Must not return.
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///
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/// \return A new child object, returned as a dynamically-allocated object
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/// because children classes are unique and thus noncopyable.
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///
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/// \throw process::system_error If the process cannot be spawned due to a
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/// system call error.
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template< typename Hook >
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std::auto_ptr< child >
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child::fork_capture(Hook hook)
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{
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std::auto_ptr< child > child = fork_capture_aux();
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if (child.get() == NULL) {
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try {
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hook();
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std::abort();
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} catch (const std::runtime_error& e) {
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detail::report_error_and_abort(e);
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} catch (...) {
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detail::report_error_and_abort();
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}
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}
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return child;
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}
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} // namespace process
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} // namespace utils
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#endif // !defined(UTILS_PROCESS_CHILD_IPP)
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