+/* SPDX-License-Identifier: LGPL-2.1-or-later */
#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 <poll.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
int pipe_eof(int fd);
+int ppoll_usec(struct pollfd *fds, size_t nfds, usec_t timeout);
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;
+static inline size_t IOVEC_TOTAL_SIZE(const struct iovec *i, size_t n) {
+ size_t j, 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;
+static inline size_t IOVEC_INCREMENT(struct iovec *i, size_t n, size_t k) {
+ size_t j;
for (j = 0; j < n; j++) {
size_t sub;
/* Same as above, but allows one extra value: -1 as indication for infinity. */
- if (l == (uint64_t) -1)
+ if (l == UINT64_MAX)
return true;
return FILE_SIZE_VALID(l);
}
+
+#define IOVEC_INIT(base, len) { .iov_base = (base), .iov_len = (len) }
+#define IOVEC_MAKE(base, len) (struct iovec) IOVEC_INIT(base, len)
+#define IOVEC_INIT_STRING(string) IOVEC_INIT((char*) string, strlen(string))
+#define IOVEC_MAKE_STRING(string) (struct iovec) IOVEC_INIT_STRING(string)
+
+char* set_iovec_string_field(struct iovec *iovec, size_t *n_iovec, const char *field, const char *value);
+char* set_iovec_string_field_free(struct iovec *iovec, size_t *n_iovec, const char *field, char *value);
+
+struct iovec_wrapper {
+ struct iovec *iovec;
+ size_t count;
+ size_t size_bytes;
+};
+
+struct iovec_wrapper *iovw_new(void);
+struct iovec_wrapper *iovw_free(struct iovec_wrapper *iovw);
+struct iovec_wrapper *iovw_free_free(struct iovec_wrapper *iovw);
+void iovw_free_contents(struct iovec_wrapper *iovw, bool free_vectors);
+int iovw_put(struct iovec_wrapper *iovw, void *data, size_t len);
+int iovw_put_string_field(struct iovec_wrapper *iovw, const char *field, const char *value);
+int iovw_put_string_field_free(struct iovec_wrapper *iovw, const char *field, char *value);
+void iovw_rebase(struct iovec_wrapper *iovw, char *old, char *new);
+size_t iovw_size(struct iovec_wrapper *iovw);