1996-05-03 18:29:10 +00:00
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/* Fake unistd.h: config.h already provides most of the relevant things. */
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2003-09-01 15:45:59 +00:00
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2011-02-27 19:48:31 +00:00
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#ifndef _UNISTD_H
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#define _UNISTD_H
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2012-09-04 17:34:54 +00:00
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/* On Microsoft platforms, <stdlib.h> declares 'environ'; on POSIX
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platforms, <unistd.h> does. Every file in Emacs that includes
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<unistd.h> also includes <stdlib.h>, so there's no need to declare
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'environ' here. */
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2012-11-05 17:29:30 +00:00
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/* Provide prototypes of library functions that are emulated on w32
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and whose prototypes are usually found in unistd.h on POSIX
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2012-11-05 16:21:18 +00:00
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platforms. */
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2011-02-27 19:48:31 +00:00
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extern ssize_t readlink (const char *, char *, size_t);
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extern int symlink (char const *, char const *);
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2012-11-01 14:21:45 +00:00
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extern int setpgid (pid_t, pid_t);
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extern pid_t getpgrp (void);
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2012-11-05 16:21:18 +00:00
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extern pid_t setsid (void);
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extern pid_t tcgetpgrp (int);
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2011-02-27 19:48:31 +00:00
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2012-11-14 17:22:55 +00:00
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extern int faccessat (int, char const *, int, int);
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/* These are normally on fcntl.h, but we don't override that header. */
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/* Use values compatible with gnulib, as there's no reason to differ. */
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#define AT_FDCWD (-3041965)
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#define AT_EACCESS 4
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#define AT_SYMLINK_NOFOLLOW 4096
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Assume POSIX 1003.1-1988 or later for fcntl.h.
* admin/CPP-DEFINES (O_RDONLY, O_RDWR, HAVE_FCNTL_H): Remove.
* admin/merge-gnulib (GNULIB_MODULES): Add fcntl-h.
* configure.ac: Do not check for fcntl.h.
* lib/gnulib.mk: Regenerate.
* lib-src/movemail.c, lib-src/update-game-score.c: Assume <fcntl.h> exists.
* nt/inc/sys/socket.h (O_NONBLOCK): Rename from O_NDELAY, since the
POSIX name for this flag is O_NONBLOCK. All uses changed.
* nt/inc/unistd.h (O_RDWR, O_NOCTTY): New macros. Like AT_FDCWD etc.
these really should be moved to a replacement <fcntl.h> if and
when that gets implemented. In the meantime, include <fcntl.h>
to make sure we don't override its definitions.
* src/callproc.c (relocate_fd): Assume F_DUPFD.
* src/emacs.c, src/term.c (O_RDWR): Remove.
* src/keyboard.c (tty_read_avail_input): Use O_NONBLOCK rather than
O_NDELAY, since O_NONBLOCK is the standard name for this flag.
* src/nsterm.m: Assume <fcntl.h> exists.
* src/process.c (NON_BLOCKING_CONNECT, allocate_pty, create_process)
(create_pty, Fmake_network_process, server_accept_connection)
(wait_reading_process_output, init_process_emacs):
Assume O_NONBLOCK.
(wait_reading_process_output): Put in a special case for WINDOWSNT
to mimick the older behavior where it had O_NDELAY but not O_NONBLOCK.
It's not clear this is needed, but it's a more-conservative change.
(create_process): Assume FD_CLOEXEC.
(create_process, create_pty): Assume O_NOCTTY.
* src/sysdep.c (init_sys_modes, reset_sys_modes): Assume F_SETFL.
(reset_sys_modes): Use O_NONBLOCK rather than O_NDELAY.
Omit if not DOS_NT, since F_GETFL is not defined there.
(serial_open): Assume O_NONBLOCK and O_NOCTTY.
* src/term.c: Include <fcntl.h>, for flags like O_NOCTTY.
(O_NOCTTY): Remove.
(init_tty): Assume O_IGNORE_CTTY is defined to 0 on platforms that
lack it, since gnulib guarantees this.
* src/w32.c (fcntl): Test for O_NONBLOCK rather than O_NDELAY.
Fixes: debbugs:12881
2012-11-17 22:12:47 +00:00
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#define O_NOCTTY 0
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2013-01-11 09:33:54 +00:00
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#define O_IGNORE_CTTY 0
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Assume POSIX 1003.1-1988 or later for fcntl.h.
* admin/CPP-DEFINES (O_RDONLY, O_RDWR, HAVE_FCNTL_H): Remove.
* admin/merge-gnulib (GNULIB_MODULES): Add fcntl-h.
* configure.ac: Do not check for fcntl.h.
* lib/gnulib.mk: Regenerate.
* lib-src/movemail.c, lib-src/update-game-score.c: Assume <fcntl.h> exists.
* nt/inc/sys/socket.h (O_NONBLOCK): Rename from O_NDELAY, since the
POSIX name for this flag is O_NONBLOCK. All uses changed.
* nt/inc/unistd.h (O_RDWR, O_NOCTTY): New macros. Like AT_FDCWD etc.
these really should be moved to a replacement <fcntl.h> if and
when that gets implemented. In the meantime, include <fcntl.h>
to make sure we don't override its definitions.
* src/callproc.c (relocate_fd): Assume F_DUPFD.
* src/emacs.c, src/term.c (O_RDWR): Remove.
* src/keyboard.c (tty_read_avail_input): Use O_NONBLOCK rather than
O_NDELAY, since O_NONBLOCK is the standard name for this flag.
* src/nsterm.m: Assume <fcntl.h> exists.
* src/process.c (NON_BLOCKING_CONNECT, allocate_pty, create_process)
(create_pty, Fmake_network_process, server_accept_connection)
(wait_reading_process_output, init_process_emacs):
Assume O_NONBLOCK.
(wait_reading_process_output): Put in a special case for WINDOWSNT
to mimick the older behavior where it had O_NDELAY but not O_NONBLOCK.
It's not clear this is needed, but it's a more-conservative change.
(create_process): Assume FD_CLOEXEC.
(create_process, create_pty): Assume O_NOCTTY.
* src/sysdep.c (init_sys_modes, reset_sys_modes): Assume F_SETFL.
(reset_sys_modes): Use O_NONBLOCK rather than O_NDELAY.
Omit if not DOS_NT, since F_GETFL is not defined there.
(serial_open): Assume O_NONBLOCK and O_NOCTTY.
* src/term.c: Include <fcntl.h>, for flags like O_NOCTTY.
(O_NOCTTY): Remove.
(init_tty): Assume O_IGNORE_CTTY is defined to 0 on platforms that
lack it, since gnulib guarantees this.
* src/w32.c (fcntl): Test for O_NONBLOCK rather than O_NDELAY.
Fixes: debbugs:12881
2012-11-17 22:12:47 +00:00
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2012-12-09 22:10:18 +00:00
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/* This is normally on stdlib.h, but we don't override that header. */
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extern int unsetenv (const char *);
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2011-02-27 19:48:31 +00:00
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#endif /* _UNISTD_H */
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