Mercurial > gnulib
view lib/fsync.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 |
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/* Emulate fsync on platforms that lack it, primarily Windows and cross-compilers like MinGW. This is derived from sqlite3 sources. https://www.sqlite.org/src/finfo?name=src/os_win.c https://www.sqlite.org/copyright.html Written by Richard W.M. Jones <rjones.at.redhat.com> Copyright (C) 2008-2019 Free Software Foundation, Inc. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser 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 <unistd.h> #if defined _WIN32 && ! defined __CYGWIN__ /* FlushFileBuffers */ # define WIN32_LEAN_AND_MEAN # include <windows.h> # include <errno.h> /* Get _get_osfhandle. */ # if GNULIB_MSVC_NOTHROW # include "msvc-nothrow.h" # else # include <io.h> # endif int fsync (int fd) { HANDLE h = (HANDLE) _get_osfhandle (fd); DWORD err; if (h == INVALID_HANDLE_VALUE) { errno = EBADF; return -1; } if (!FlushFileBuffers (h)) { /* Translate some Windows errors into rough approximations of Unix * errors. MSDN is useless as usual - in this case it doesn't * document the full range of errors. */ err = GetLastError (); switch (err) { case ERROR_ACCESS_DENIED: /* For a read-only handle, fsync should succeed, even though we have no way to sync the access-time changes. */ return 0; /* eg. Trying to fsync a tty. */ case ERROR_INVALID_HANDLE: errno = EINVAL; break; default: errno = EIO; } return -1; } return 0; } #else /* !Windows */ # error "This platform lacks fsync function, and Gnulib doesn't provide a replacement. This is a bug in Gnulib." #endif /* !Windows */