gnulib: lib/read.c annotate

annotate lib/read.c @ 40231:9b3c79fdfe0b

strtod: fix clash with strtold Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817). * lib/strtod.c (compute_minus_zero, minus_zero): Simplify by remving the macro / external variable, and having just a function. User changed. This avoids the need for an external variable that might clash.

author	Paul Eggert <eggert@cs.ucla.edu>
date	Mon, 11 Mar 2019 16:40:29 -0700
parents	b06060465f09
children

rev	line source
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	1 /* POSIX compatible read() function.
40057 b06060465f09 maint: Run 'make update-copyright' Paul Eggert <eggert@cs.ucla.edu> parents: 19595 diff changeset	2 Copyright (C) 2008-2019 Free Software Foundation, Inc.
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	3 Written by Bruno Haible <bruno@clisp.org>, 2011.
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	4
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	5 This program is free software: you can redistribute it and/or modify
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	6 it under the terms of the GNU General Public License as published by
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	7 the Free Software Foundation; either version 3 of the License, or
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	8 (at your option) any later version.
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	9
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	10 This program is distributed in the hope that it will be useful,
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	13 GNU General Public License for more details.
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	14
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	15 You should have received a copy of the GNU General Public License
19190 9759915b2aca all: prefer https: URLs Paul Eggert <eggert@cs.ucla.edu> parents: 18883 diff changeset	16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	17
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	18 #include <config.h>
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	19
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	20 /* Specification. */
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	21 #include <unistd.h>
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	22
19595 beb2ad957aca Simplify code. Drop support for Borland C++ on Windows. Bruno Haible <bruno@clisp.org> parents: 19484 diff changeset	23 #if defined _WIN32 && ! defined __CYGWIN__
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	24
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	25 # include <errno.h>
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	26 # include <io.h>
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	27
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	28 # define WIN32_LEAN_AND_MEAN /* avoid including junk */
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	29 # include <windows.h>
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	30
18883 19886582ca8d Implement a way to opt out from MSVC support. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	31 # if HAVE_MSVC_INVALID_PARAMETER_HANDLER
19886582ca8d Implement a way to opt out from MSVC support. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	32 # include "msvc-inval.h"
19886582ca8d Implement a way to opt out from MSVC support. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	33 # endif
19886582ca8d Implement a way to opt out from MSVC support. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	34 # if GNULIB_MSVC_NOTHROW
19886582ca8d Implement a way to opt out from MSVC support. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	35 # include "msvc-nothrow.h"
19886582ca8d Implement a way to opt out from MSVC support. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	36 # else
19886582ca8d Implement a way to opt out from MSVC support. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	37 # include <io.h>
19886582ca8d Implement a way to opt out from MSVC support. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	38 # endif
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	39
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	40 # undef read
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	41
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	42 # if HAVE_MSVC_INVALID_PARAMETER_HANDLER
17185 dd46d4e6beea dup, execute, fatal-signal, etc.: no 'static inline' Paul Eggert <eggert@cs.ucla.edu> parents: 16201 diff changeset	43 static ssize_t
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	44 read_nothrow (int fd, void *buf, size_t count)
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	45 {
15768 03d49ab0f9ae read: Fix last commit. Bruno Haible <bruno@clisp.org> parents: 15763 diff changeset	46 ssize_t result;
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	47
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	48 TRY_MSVC_INVAL
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	49 {
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	50 result = read (fd, buf, count);
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	51 }
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	52 CATCH_MSVC_INVAL
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	53 {
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	54 result = -1;
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	55 errno = EBADF;
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	56 }
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	57 DONE_MSVC_INVAL;
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	58
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	59 return result;
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	60 }
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	61 # else
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	62 # define read_nothrow read
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	63 # endif
15752 b86e9061a6d0 New module 'msvc-nothrow'. Makes _get_osfhandle safe on MSVC 9. Bruno Haible <bruno@clisp.org> parents: 14583 diff changeset	64
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	65 ssize_t
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	66 rpl_read (int fd, void *buf, size_t count)
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	67 {
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	68 ssize_t ret = read_nothrow (fd, buf, count);
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	69
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	70 # if GNULIB_NONBLOCKING
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	71 if (ret < 0
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	72 && GetLastError () == ERROR_NO_DATA)
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	73 {
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	74 HANDLE h = (HANDLE) _get_osfhandle (fd);
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	75 if (GetFileType (h) == FILE_TYPE_PIPE)
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	76 {
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	77 /* h is a pipe or socket. */
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	78 DWORD state;
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	79 if (GetNamedPipeHandleState (h, &state, NULL, NULL, NULL, NULL, 0)
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	80 && (state & PIPE_NOWAIT) != 0)
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	81 /* h is a pipe in non-blocking mode.
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	82 Change errno from EINVAL to EAGAIN. */
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	83 errno = EAGAIN;
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	84 }
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	85 }
15763 05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	86 # endif
05e615abe919 read: Support for MSVC 9. Bruno Haible <bruno@clisp.org> parents: 15752 diff changeset	87
14583 8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	88 return ret;
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	89 }
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	90
8b22057e98d2 Support non-blocking pipe I/O in read() on native Windows. Bruno Haible <bruno@clisp.org> parents: diff changeset	91 #endif

Mercurial > gnulib

annotate lib/read.c @ 40231:9b3c79fdfe0b