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/* Create a subprocess.
Copyright (C) 2019-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef SUPPORT_SUBPROCESS_H
#define SUPPORT_SUBPROCESS_H
#include <sys/types.h>
struct support_subprocess
{
int stdout_pipe[2];
int stderr_pipe[2];
pid_t pid;
};
/* Invoke CALLBACK (CLOSURE) in a subprocess created with fork and return
its PID, a pipe redirected to STDOUT, and a pipe redirected to STDERR. */
struct support_subprocess support_subprocess
(void (*callback) (void *), void *closure);
/* Issue FILE with ARGV arguments and ENVP environments by using posix_spawn
and return is PID, a pipe redirected to STDOUT, and a pipe redirected to
STDERR. If ENVP is NULL the current environment variable is used. */
struct support_subprocess support_subprogram
(const char *file, char *const argv[], char *const envp[]);
/* Invoke program FILE with ARGV arguments by using posix_spawn and wait for it
to complete. Return program exit status. */
int support_subprogram_wait
(const char *file, char *const argv[]);
/* Wait for the subprocess indicated by PROC::PID. Return the status
indicate by waitpid call. */
int support_process_wait (struct support_subprocess *proc);
/* Terminate the subprocess indicated by PROC::PID, first with a SIGTERM and
then with a SIGKILL. Return the status as for waitpid call. */
int support_process_terminate (struct support_subprocess *proc);
#endif
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