| /* |
| * Copyright (c) 2015, Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, this |
| * list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation and/or |
| * other materials provided with the distribution. |
| * |
| * 3. Neither the name of the copyright holder nor the names of its contributors |
| * may be used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #include <cstddef> |
| |
| namespace utility |
| { |
| |
| /** Write *completely* a buffer in a file descriptor. |
| * |
| * A wrapper around unistd::write that resumes write on incomplete access |
| * and EAGAIN/EINTR error. |
| * |
| * @see man 2 write for the parameters. |
| * |
| * @return true if the buffer could be completely written, |
| * false on failure (see write's man errno section). |
| */ |
| bool fullWrite(int fd, const void *buf, size_t count); |
| |
| /** Fill a buffer from a file descriptor. |
| * |
| * A wrapper around unistd::read that resumes read on incomplete access |
| * and EAGAIN/EINTR error. |
| * |
| * @see man 2 read for the parameters. |
| * |
| * @return true if the buffer could be completely fill, |
| * false on failure (see read's man errno section). |
| * |
| * If the buffer could not be filled due to an EOF, return false but set |
| * errno to 0. |
| * @TODO Add a custom strerror to prevent logging "success" (`sterror(0)`) on |
| * EOF errors ? |
| */ |
| bool fullRead(int fd, void *buf, size_t count); |
| |
| } // namespace utility |
| |