Mercurial > gnulib
view tests/test-nonblocking-pipe-main.c @ 40198:5a34193cbc07
long-options: add parse_gnu_standard_options_only
Discussed in https://bugs.gnu.org/33468 .
* lib/long-options.c (parse_long_options): Use EXIT_SUCCESS instead
of 0.
(parse_gnu_standard_options_only): Add function to
process the GNU default options --help and --version and fail for any other
unknown long or short option. See
https://gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html .
* lib/long-options.h (parse_gnu_standard_options_only): Declare it.
* modules/long-options (depends-on): Add stdbool, exitfail.
* top/maint.mk (sc_prohibit_long_options_without_use): Update
syntax-check rule, add new function name.
author | Bernhard Voelker <mail@bernhard-voelker.de> |
---|---|
date | Thu, 29 Nov 2018 09:06:26 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
/* Test for nonblocking read and write on pipes. Copyright (C) 2011-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> #include <errno.h> #include <stdbool.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/time.h> #if defined _WIN32 && ! defined __CYGWIN__ # include <process.h> #else # include <spawn.h> #endif #include "nonblocking.h" #include "wait-process.h" #include "macros.h" #include "test-nonblocking-pipe.h" #define PROG_ROLE "main" #include "test-nonblocking-writer.h" int main (int argc, char *argv[]) { const char *child_path; int test; int fd[2]; int child; int exitcode; child_path = argv[1]; test = atoi (argv[2]); /* Create a pipe. */ ASSERT (pipe (fd) >= 0); /* Map fd[0] to STDIN_FILENO and fd[1] to STDOUT_FILENO, because on Windows, the only three file descriptors that are inherited by child processes are STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO. */ if (fd[0] != STDIN_FILENO) { ASSERT (dup2 (fd[0], STDIN_FILENO) >= 0); close (fd[0]); } if (fd[1] != STDOUT_FILENO) { ASSERT (dup2 (fd[1], STDOUT_FILENO) >= 0); close (fd[1]); } /* Prepare the file descriptors. */ if (test & 1) ASSERT (set_nonblocking_flag (STDOUT_FILENO, true) >= 0); if (test & 2) ASSERT (set_nonblocking_flag (STDIN_FILENO, true) >= 0); /* Spawn the child process. */ { const char *child_argv[3]; child_argv[0] = child_path; child_argv[1] = argv[2]; child_argv[2] = NULL; #if defined _WIN32 && ! defined __CYGWIN__ child = spawnvpe (P_NOWAIT, child_path, child_argv, (const char **) environ); ASSERT (child >= 0); #else { pid_t child_pid; int err = posix_spawnp (&child_pid, child_path, NULL, NULL, (char **) child_argv, environ); ASSERT (err == 0); child = child_pid; } #endif } /* Close unused file descriptors. */ close (STDIN_FILENO); exitcode = main_writer_loop (test, PIPE_DATA_BLOCK_SIZE, STDOUT_FILENO, false); { int err = wait_subprocess (child, child_path, false, false, false, false, NULL); ASSERT (err == 0); } return exitcode; }