| 1 | /* Create a subprocess. |
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| 2 | Copyright (C) 2019-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #ifndef SUPPORT_SUBPROCESS_H |
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| 20 | #define SUPPORT_SUBPROCESS_H |
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| 21 | |
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| 22 | #include <sys/types.h> |
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| 23 | |
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| 24 | struct support_subprocess |
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| 25 | { |
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| 26 | int stdout_pipe[2]; |
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| 27 | int stderr_pipe[2]; |
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| 28 | pid_t pid; |
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| 29 | }; |
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| 30 | |
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| 31 | /* Invoke CALLBACK (CLOSURE) in a subprocess created with fork and return |
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| 32 | its PID, a pipe redirected to STDOUT, and a pipe redirected to STDERR. */ |
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| 33 | struct support_subprocess support_subprocess |
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| 34 | (void (*callback) (void *), void *closure); |
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| 35 | |
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| 36 | /* Issue FILE with ARGV arguments by using posix_spawn and return is PID, a |
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| 37 | pipe redirected to STDOUT, and a pipe redirected to STDERR. */ |
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| 38 | struct support_subprocess support_subprogram |
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| 39 | (const char *file, char *const argv[]); |
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| 40 | |
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| 41 | /* Invoke program FILE with ARGV arguments by using posix_spawn and wait for it |
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| 42 | to complete. Return program exit status. */ |
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| 43 | int support_subprogram_wait |
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| 44 | (const char *file, char *const argv[]); |
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| 45 | |
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| 46 | /* Wait for the subprocess indicated by PROC::PID. Return the status |
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| 47 | indicate by waitpid call. */ |
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| 48 | int support_process_wait (struct support_subprocess *proc); |
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| 49 | |
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| 50 | /* Terminate the subprocess indicated by PROC::PID, first with a SIGTERM and |
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| 51 | then with a SIGKILL. Return the status as for waitpid call. */ |
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| 52 | int support_process_terminate (struct support_subprocess *proc); |
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| 53 | |
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| 54 | #endif |
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| 55 | |
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