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8 Commits

Author SHA1 Message Date
Bruno Haible
6ab6766a05 fflush et al.: Document limitation on MSVC. 
* doc/posix-functions/fflush.texi: Document possible crash in handling
mode other than DEFAULT_HANDLING.
* doc/posix-functions/fgetc.texi: Likewise.
* doc/posix-functions/fputc.texi: Likewise.
* doc/posix-functions/fread.texi: Likewise.
* doc/posix-functions/fwrite.texi: Likewise.
 2011-09-25 23:22:19 +02:00
Bruno Haible
4e39aa4288 doc: Update regarding MSVC 9. 
* doc/gnulib-intro.texi (Target Platforms): Classify MSVC as "rarely
tested".
* doc/posix-functions/*.texi: Update with info about MSVC 9.
* doc/posix-headers/*.texi: Likewise.
* doc/pastposix-functions/*.texi: Likewise.
* doc/glibc-functions/*.texi: Likewise.
* doc/glibc-headers/*.texi: Likewise.
 2011-09-11 21:56:17 +02:00
Eric Blake
fd33cbeb2a test-perror: relax test to ignore cygwin bug 
glibc was not the only platform where fprintf(fopen(,"r"))
fails to detect errors; cygwin 1.7.9 is another culprit
(although it will be fixed for 1.7.10), and I suspect that
several other platforms were failing perror2 for the same
reason.

At this point, there are so many functions affected, and
the way to avoid the bug is easy enough (don't pass bogus
streams to output-producing functions), that I'm not worried
about fixing things other than to document them.

* tests/test-perror2.c (main): Relax test on requiring detection
of stream errors, and use unbuffered stream.
* doc/posix-functions/dprintf.texi (dprintf): Document bug.
* doc/posix-functions/fprintf.texi (fprintf): Likewise.
* doc/posix-functions/fputc.texi (fputc): Likewise.
* doc/posix-functions/fputs.texi (fputs): Likewise.
* doc/posix-functions/fputws.texi (fputws): Likewise.
* doc/posix-functions/fwprintf.texi (fwprintf): Likewise.
* doc/posix-functions/fwrite.texi (fwrite): Likewise.
* doc/posix-functions/getopt.texi (getopt): Likewise.
* doc/posix-functions/perror.texi (perror): Likewise.
* doc/posix-functions/printf.texi (printf): Likewise.
* doc/posix-functions/psiginfo.texi (psiginfo): Likewise.
* doc/posix-functions/psignal.texi (psignal): Likewise.
* doc/posix-functions/putc.texi (putc): Likewise.
* doc/posix-functions/putc_unlocked.texi (putc_unlocked):
Likewise.
* doc/posix-functions/putchar.texi (putchar): Likewise.
* doc/posix-functions/putchar_unlocked.texi (putchar_unlocked):
Likewise.
* doc/posix-functions/puts.texi (puts): Likewise.
* doc/posix-functions/putwc.texi (putwc): Likewise.
* doc/posix-functions/putwchar.texi (putwchar): Likewise.
* doc/posix-functions/vdprintf.texi (vdprintf): Likewise.
* doc/posix-functions/vfprintf.texi (vfprintf): Likewise.
* doc/posix-functions/vfwprintf.texi (vfwprintf): Likewise.
* doc/posix-functions/vprintf.texi (vprintf): Likewise.
* doc/posix-functions/vwprintf.texi (vwprintf): Likewise.
* doc/posix-functions/wordexp.texi (wordexp): Likewise.
* doc/posix-functions/wprintf.texi (wprintf): Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
 2011-06-07 16:48:54 -06:00
Bruno Haible
836e045706 Support non-blocking pipe I/O in write() on native Windows. 
* lib/unistd.in.h (write): Enable replacement also if
GNULIB_UNISTD_H_NONBLOCKING is 1.
* lib/write.c: Enable replacement also if GNULIB_NONBLOCKING.
(rpl_write): When failing to write on a non-blocking pipe, change
errno from ENOSPC to EAGAIN.
* lib/stdio.in.h (fprintf, fputc, fputs, fwrite, printf, putc,
putchar, puts, vfprintf, vprintf): Enable replacement also if
GNULIB_STDIO_H_NONBLOCKING is 1.
* lib/stdio-write.c: Enable replacements also if GNULIB_NONBLOCKING.
(CLEAR_ERRNO, HANDLE_ENOSPC): New macros.
(CLEAR_LastError, HANDLE_ERROR_NO_DATA): New macros, extracted from
CALL_WITH_SIGPIPE_EMULATION.
(CALL_WITH_SIGPIPE_EMULATION): Use them.
* m4/nonblocking.m4: New file.
* m4/write.m4 (gl_FUNC_WRITE): Enable REPLACE_WRITE also if required
for non-blocking I/O support.
* m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Initialize
GNULIB_UNISTD_H_NONBLOCKING.
* m4/stdio_h.m4 (gl_STDIO_H): Enable REPLACE_STDIO_WRITE_FUNCS also if
required for non-blocking I/O support.
(gl_STDIO_H_DEFAULTS): Initialize GNULIB_STDIO_H_NONBLOCKING.
* modules/nonblocking (Files): Add m4/nonblocking.m4,
lib/stdio-write.c, m4/asm-underscore.m4.
(Depends-on): Add stdio, unistd.
(configure.ac): Invoke gl_NONBLOCKING_IO. Define GNULIB_NONBLOCKING.
Set GNULIB_STDIO_H_NONBLOCKING, GNULIB_UNISTD_H_NONBLOCKING.
* modules/unistd (Makefile.am): Substitute GNULIB_UNISTD_H_NONBLOCKING.
* modules/stdio (Makefile.am): Substitute GNULIB_STDIO_H_NONBLOCKING.
* doc/posix-functions/fprintf.texi: Mention 'nonblocking' module and
problem with non-blocking pipes.
* doc/posix-functions/fputc.texi: Likewise.
* doc/posix-functions/fputs.texi: Likewise.
* doc/posix-functions/fwrite.texi: Likewise.
* doc/posix-functions/printf.texi: Likewise.
* doc/posix-functions/putc.texi: Likewise.
* doc/posix-functions/putchar.texi: Likewise.
* doc/posix-functions/puts.texi: Likewise.
* doc/posix-functions/vfprintf.texi: Likewise.
* doc/posix-functions/vprintf.texi: Likewise.
* doc/posix-functions/write.texi: Likewise.
 2011-04-13 12:36:36 +02:00
Karl Berry
80fc442c21 avoid some overlong lines from posix urls, etc. 2010-08-13 11:50:58 -07:00
Bruno Haible
09ef746111 Refer to new POSIX:2008 standard. 2008-12-14 14:38:13 +01:00
Bruno Haible
9ff044ec4d Support SIGPIPE in stdio functions for writing. 2008-09-26 13:44:54 +02:00
Bruno Haible
2b6c08c775 Rename two directories: headers -> posix-headers, functions -> posix-functions. 2008-01-20 00:09:59 +01:00