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contrib/dhcpcd/src/eloop.h
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| /* SPDX-License-Identifier: BSD-2-Clause */ | |||||
| /* | |||||
| * dhcpcd - DHCP client daemon | |||||
| * Copyright (c) 2006-2021 Roy Marples <roy@marples.name> | |||||
| * 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. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. | |||||
| */ | |||||
| #ifndef ELOOP_H | |||||
| #define ELOOP_H | |||||
| #include <time.h> | |||||
| /* Handy macros to create subsecond timeouts */ | |||||
| #define CSEC_PER_SEC 100 | |||||
| #define MSEC_PER_SEC 1000 | |||||
| #define NSEC_PER_CSEC 10000000 | |||||
| #define NSEC_PER_MSEC 1000000 | |||||
| #define NSEC_PER_SEC 1000000000 | |||||
| /* eloop queues are really only for deleting timeouts registered | |||||
| * for a function or object. | |||||
| * The idea being that one interface has different timeouts for | |||||
| * say DHCP and DHCPv6. */ | |||||
| #ifndef ELOOP_QUEUE | |||||
| #define ELOOP_QUEUE 1 | |||||
| #endif | |||||
| /* Used for deleting a timeout for all queues. */ | |||||
| #define ELOOP_QUEUE_ALL 0 | |||||
| /* Forward declare eloop - the content should be invisible to the outside */ | |||||
| struct eloop; | |||||
| unsigned long long eloop_timespec_diff(const struct timespec *tsp, | |||||
| const struct timespec *usp, unsigned int *nsp); | |||||
| size_t eloop_event_count(const struct eloop *); | |||||
| int eloop_event_add_rw(struct eloop *, int, | |||||
| void (*)(void *), void *, | |||||
| void (*)(void *), void *); | |||||
| int eloop_event_add(struct eloop *, int, | |||||
| void (*)(void *), void *); | |||||
| int eloop_event_add_w(struct eloop *, int, | |||||
| void (*)(void *), void *); | |||||
| #define eloop_event_delete(eloop, fd) \ | |||||
| eloop_event_delete_write((eloop), (fd), 0) | |||||
| #define eloop_event_remove_writecb(eloop, fd) \ | |||||
| eloop_event_delete_write((eloop), (fd), 1) | |||||
| int eloop_event_delete_write(struct eloop *, int, int); | |||||
| #define eloop_timeout_add_tv(eloop, tv, cb, ctx) \ | |||||
| eloop_q_timeout_add_tv((eloop), ELOOP_QUEUE, (tv), (cb), (ctx)) | |||||
| #define eloop_timeout_add_sec(eloop, tv, cb, ctx) \ | |||||
| eloop_q_timeout_add_sec((eloop), ELOOP_QUEUE, (tv), (cb), (ctx)) | |||||
| #define eloop_timeout_add_msec(eloop, ms, cb, ctx) \ | |||||
| eloop_q_timeout_add_msec((eloop), ELOOP_QUEUE, (ms), (cb), (ctx)) | |||||
| #define eloop_timeout_delete(eloop, cb, ctx) \ | |||||
| eloop_q_timeout_delete((eloop), ELOOP_QUEUE, (cb), (ctx)) | |||||
| int eloop_q_timeout_add_tv(struct eloop *, int, | |||||
| const struct timespec *, void (*)(void *), void *); | |||||
| int eloop_q_timeout_add_sec(struct eloop *, int, | |||||
| unsigned int, void (*)(void *), void *); | |||||
| int eloop_q_timeout_add_msec(struct eloop *, int, | |||||
| unsigned long, void (*)(void *), void *); | |||||
| int eloop_q_timeout_delete(struct eloop *, int, void (*)(void *), void *); | |||||
| void eloop_signal_set_cb(struct eloop *, const int *, size_t, | |||||
| void (*)(int, void *), void *); | |||||
| int eloop_signal_mask(struct eloop *, sigset_t *oldset); | |||||
| struct eloop * eloop_new(void); | |||||
| void eloop_clear(struct eloop *); | |||||
| void eloop_free(struct eloop *); | |||||
| void eloop_exit(struct eloop *, int); | |||||
| void eloop_enter(struct eloop *); | |||||
| int eloop_start(struct eloop *, sigset_t *); | |||||
| #endif | |||||