diff options
Diffstat (limited to 'src/basic/io-util.h')
-rw-r--r-- | src/basic/io-util.h | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/src/basic/io-util.h b/src/basic/io-util.h deleted file mode 100644 index 4684ed3bfc..0000000000 --- a/src/basic/io-util.h +++ /dev/null @@ -1,95 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - systemd 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. - - systemd 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 Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdbool.h> -#include <stddef.h> -#include <stdint.h> -#include <sys/types.h> -#include <sys/uio.h> - -#include "macro.h" -#include "time-util.h" - -int flush_fd(int fd); - -ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll); -int loop_read_exact(int fd, void *buf, size_t nbytes, bool do_poll); -int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll); - -int pipe_eof(int fd); - -int fd_wait_for_event(int fd, int event, usec_t timeout); - -ssize_t sparse_write(int fd, const void *p, size_t sz, size_t run_length); - -#define IOVEC_SET_STRING(i, s) \ - do { \ - struct iovec *_i = &(i); \ - char *_s = (char *)(s); \ - _i->iov_base = _s; \ - _i->iov_len = strlen(_s); \ - } while (false) - -static inline size_t IOVEC_TOTAL_SIZE(const struct iovec *i, unsigned n) { - unsigned j; - size_t r = 0; - - for (j = 0; j < n; j++) - r += i[j].iov_len; - - return r; -} - -static inline size_t IOVEC_INCREMENT(struct iovec *i, unsigned n, size_t k) { - unsigned j; - - for (j = 0; j < n; j++) { - size_t sub; - - if (_unlikely_(k <= 0)) - break; - - sub = MIN(i[j].iov_len, k); - i[j].iov_len -= sub; - i[j].iov_base = (uint8_t*) i[j].iov_base + sub; - k -= sub; - } - - return k; -} - -static inline bool FILE_SIZE_VALID(uint64_t l) { - /* ftruncate() and friends take an unsigned file size, but actually cannot deal with file sizes larger than - * 2^63 since the kernel internally handles it as signed value. This call allows checking for this early. */ - - return (l >> 63) == 0; -} - -static inline bool FILE_SIZE_VALID_OR_INFINITY(uint64_t l) { - - /* Same as above, but allows one extra value: -1 as indication for infinity. */ - - if (l == (uint64_t) -1) - return true; - - return FILE_SIZE_VALID(l); - -} |