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258ce91f31
genrand.c will require it soon Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* Samba system utilities
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* Copyright (C) Andrew Tridgell 1992-1998
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* Copyright (C) Jeremy Allison 1998-2005
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* Copyright (C) Timur Bakeyev 2005
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* Copyright (C) Bjoern Jacke 2006-2007
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "replace.h"
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#include "system/filesys.h"
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#include "lib/util/sys_rw.h"
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/*******************************************************************
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A read wrapper that will deal with EINTR/EWOULDBLOCK
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********************************************************************/
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ssize_t sys_read(int fd, void *buf, size_t count)
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{
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ssize_t ret;
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do {
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ret = read(fd, buf, count);
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} while (ret == -1 && (errno == EINTR || errno == EAGAIN ||
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errno == EWOULDBLOCK));
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return ret;
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}
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/*******************************************************************
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A write wrapper that will deal with EINTR/EWOULDBLOCK.
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********************************************************************/
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ssize_t sys_write(int fd, const void *buf, size_t count)
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{
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ssize_t ret;
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do {
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ret = write(fd, buf, count);
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} while (ret == -1 && (errno == EINTR || errno == EAGAIN ||
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errno == EWOULDBLOCK));
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return ret;
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}
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/*******************************************************************
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A writev wrapper that will deal with EINTR.
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********************************************************************/
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ssize_t sys_writev(int fd, const struct iovec *iov, int iovcnt)
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{
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ssize_t ret;
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do {
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ret = writev(fd, iov, iovcnt);
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} while (ret == -1 && (errno == EINTR || errno == EAGAIN ||
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errno == EWOULDBLOCK));
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return ret;
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}
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/*******************************************************************
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A pread wrapper that will deal with EINTR
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********************************************************************/
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ssize_t sys_pread(int fd, void *buf, size_t count, off_t off)
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{
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ssize_t ret;
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do {
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ret = pread(fd, buf, count, off);
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} while (ret == -1 && errno == EINTR);
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return ret;
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}
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/*******************************************************************
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A write wrapper that will deal with EINTR
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********************************************************************/
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ssize_t sys_pwrite(int fd, const void *buf, size_t count, off_t off)
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{
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ssize_t ret;
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do {
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ret = pwrite(fd, buf, count, off);
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} while (ret == -1 && errno == EINTR);
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return ret;
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}
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