Mercurial > hg > octave-nkf > gnulib-hg

annotate lib/spawn-pipe.h @ 16040:b8acd8099b25

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
New module 'fmaf'. * lib/math.in.h (fmaf): New declaration. * lib/fmaf.c: New file. * m4/fmaf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whethern fmaf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_FMAF, HAVE_FMAF, REPLACE_FMAF. * modules/math (Makefile.am): Substitute GNULIB_FMAF, HAVE_FMAF, REPLACE_FMAF. * modules/fmaf: New file. * doc/posix-functions/fmaf.texi: Mention the new module and the various bugs.
author Bruno Haible <bruno@clisp.org>
date Mon, 17 Oct 2011 23:51:21 +0200
parents 97fc9a21a8fb
children 8250f2777afc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
13924
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1 /* Creation of subprocesses, communicating via pipes.
14079
97fc9a21a8fb maint: update almost all copyright ranges to include 2011
Jim Meyering <meyering@redhat.com>
parents: 13924
diff changeset
2 Copyright (C) 2001-2003, 2006, 2008-2011 Free Software Foundation, Inc.
13924
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3 Written by Bruno Haible <haible@clisp.cons.org>, 2001.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
5 This program is free software: you can redistribute it and/or modify
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
6 it under the terms of the GNU General Public License as published by
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
7 the Free Software Foundation; either version 3 of the License, or
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
8 (at your option) any later version.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
9
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
10 This program is distributed in the hope that it will be useful,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
13 GNU General Public License for more details.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
14
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
15 You should have received a copy of the GNU General Public License
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
17
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
18 #ifndef _SPAWN_PIPE_H
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
19 #define _SPAWN_PIPE_H
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
20
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
21 /* Get pid_t. */
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
22 #include <stdlib.h>
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
23 #include <unistd.h>
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
24 #include <sys/types.h>
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
25
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
26 #include <stdbool.h>
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
27
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
28
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
29 #ifdef __cplusplus
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
30 extern "C" {
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
31 #endif
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
32
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
33
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
34 /* All these functions create a subprocess and don't wait for its termination.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
35 They return the process id of the subprocess. They also return in fd[]
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
36 one or two file descriptors for communication with the subprocess.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
37 If the subprocess creation fails: if exit_on_error is true, the main
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
38 process exits with an error message; otherwise, an error message is given
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
39 if null_stderr is false, then -1 is returned, with errno set, and fd[]
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
40 remain uninitialized.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
41
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
42 After finishing communication, the caller should call wait_subprocess()
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
43 to get rid of the subprocess in the process table.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
44
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
45 If slave_process is true, the child process will be terminated when its
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
46 creator receives a catchable fatal signal or exits normally. If
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
47 slave_process is false, the child process will continue running in this
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
48 case, until it is lucky enough to attempt to communicate with its creator
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
49 and thus get a SIGPIPE signal.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
50
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
51 If exit_on_error is false, a child process id of -1 should be treated the
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
52 same way as a subprocess which accepts no input, produces no output and
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
53 terminates with exit code 127. Why? Some errors during posix_spawnp()
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
54 cause the function posix_spawnp() to return an error code; some other
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
55 errors cause the subprocess to exit with return code 127. It is
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
56 implementation dependent which error is reported which way. The caller
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
57 must treat both cases as equivalent.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
58
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
59 It is recommended that no signal is blocked or ignored (i.e. have a
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
60 signal handler with value SIG_IGN) while any of these functions is called.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
61 The reason is that child processes inherit the mask of blocked signals
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
62 from their parent (both through posix_spawn() and fork()/exec());
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
63 likewise, signals ignored in the parent are also ignored in the child
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
64 (except possibly for SIGCHLD). And POSIX:2001 says [in the description
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
65 of exec()]:
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
66 "it should be noted that many existing applications wrongly
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
67 assume that they start with certain signals set to the default
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
68 action and/or unblocked. In particular, applications written
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
69 with a simpler signal model that does not include blocking of
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
70 signals, such as the one in the ISO C standard, may not behave
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
71 properly if invoked with some signals blocked. Therefore, it is
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
72 best not to block or ignore signals across execs without explicit
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
73 reason to do so, and especially not to block signals across execs
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
74 of arbitrary (not closely co-operating) programs." */
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
75
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
76 /* Open a pipe for output to a child process.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
77 * The child's stdout goes to a file.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
78 *
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
79 * write system read
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
80 * parent -> fd[0] -> STDIN_FILENO -> child
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
81 *
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
82 * Note: When writing to a child process, it is useful to ignore the SIGPIPE
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
83 * signal and the EPIPE error code.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
84 */
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
85 extern pid_t create_pipe_out (const char *progname,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
86 const char *prog_path, char **prog_argv,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
87 const char *prog_stdout, bool null_stderr,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
88 bool slave_process, bool exit_on_error,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
89 int fd[1]);
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
90
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
91 /* Open a pipe for input from a child process.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
92 * The child's stdin comes from a file.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
93 *
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
94 * read system write
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
95 * parent <- fd[0] <- STDOUT_FILENO <- child
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
96 *
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
97 */
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
98 extern pid_t create_pipe_in (const char *progname,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
99 const char *prog_path, char **prog_argv,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
100 const char *prog_stdin, bool null_stderr,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
101 bool slave_process, bool exit_on_error,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
102 int fd[1]);
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
103
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
104 /* Open a bidirectional pipe.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
105 *
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
106 * write system read
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
107 * parent -> fd[1] -> STDIN_FILENO -> child
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
108 * parent <- fd[0] <- STDOUT_FILENO <- child
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
109 * read system write
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
110 *
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
111 * Note: When writing to a child process, it is useful to ignore the SIGPIPE
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
112 * signal and the EPIPE error code.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
113 *
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
114 * Note: The parent process must be careful to avoid deadlock.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
115 * 1) If you write more than PIPE_MAX bytes or, more generally, if you write
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
116 * more bytes than the subprocess can handle at once, the subprocess
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
117 * may write its data and wait on you to read it, but you are currently
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
118 * busy writing.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
119 * 2) When you don't know ahead of time how many bytes the subprocess
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
120 * will produce, the usual technique of calling read (fd, buf, BUFSIZ)
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
121 * with a fixed BUFSIZ will, on Linux 2.2.17 and on BSD systems, cause
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
122 * the read() call to block until *all* of the buffer has been filled.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
123 * But the subprocess cannot produce more data until you gave it more
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
124 * input. But you are currently busy reading from it.
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
125 */
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
126 extern pid_t create_pipe_bidi (const char *progname,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
127 const char *prog_path, char **prog_argv,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
128 bool null_stderr,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
129 bool slave_process, bool exit_on_error,
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
130 int fd[2]);
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
131
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
132 /* The name of the "always silent" device. */
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
133 #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
134 /* Native Woe32 API. */
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
135 # define DEV_NULL "NUL"
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
136 #else
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
137 /* Unix API. */
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
138 # define DEV_NULL "/dev/null"
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
139 #endif
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
140
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
141
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
142 #ifdef __cplusplus
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
143 }
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
144 #endif
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
145
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
146
5be0c314f2f8 Rename module 'pipe' to 'spawn-pipe'.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
147 #endif /* _SPAWN_PIPE_H */