Annotation of src/external/bsd/dhcpcd/dist/src/eloop.h, Revision 1.1.1.10
1.1.1.5 roy 1: /* SPDX-License-Identifier: BSD-2-Clause */
1.1 roy 2: /*
3: * dhcpcd - DHCP client daemon
1.1.1.10! roy 4: * Copyright (c) 2006-2021 Roy Marples <roy@marples.name>
1.1 roy 5: * All rights reserved
6:
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26: * SUCH DAMAGE.
27: */
28:
29: #ifndef ELOOP_H
30: #define ELOOP_H
31:
32: #include <time.h>
33:
1.1.1.7 roy 34: /* Handy macros to create subsecond timeouts */
35: #define CSEC_PER_SEC 100
36: #define MSEC_PER_SEC 1000
37: #define NSEC_PER_CSEC 10000000
38: #define NSEC_PER_MSEC 1000000
39: #define NSEC_PER_SEC 1000000000
1.1 roy 40:
41: /* eloop queues are really only for deleting timeouts registered
42: * for a function or object.
43: * The idea being that one interface has different timeouts for
44: * say DHCP and DHCPv6. */
45: #ifndef ELOOP_QUEUE
46: #define ELOOP_QUEUE 1
47: #endif
48:
1.1.1.7 roy 49: /* Used for deleting a timeout for all queues. */
50: #define ELOOP_QUEUE_ALL 0
51:
1.1 roy 52: /* Forward declare eloop - the content should be invisible to the outside */
53: struct eloop;
54:
1.1.1.7 roy 55: unsigned long long eloop_timespec_diff(const struct timespec *tsp,
56: const struct timespec *usp, unsigned int *nsp);
1.1.1.9 roy 57: size_t eloop_event_count(const struct eloop *);
1.1 roy 58: int eloop_event_add_rw(struct eloop *, int,
59: void (*)(void *), void *,
60: void (*)(void *), void *);
61: int eloop_event_add(struct eloop *, int,
62: void (*)(void *), void *);
63: int eloop_event_add_w(struct eloop *, int,
64: void (*)(void *), void *);
65: #define eloop_event_delete(eloop, fd) \
66: eloop_event_delete_write((eloop), (fd), 0)
67: #define eloop_event_remove_writecb(eloop, fd) \
68: eloop_event_delete_write((eloop), (fd), 1)
1.1.1.2 roy 69: int eloop_event_delete_write(struct eloop *, int, int);
1.1 roy 70:
71: #define eloop_timeout_add_tv(eloop, tv, cb, ctx) \
72: eloop_q_timeout_add_tv((eloop), ELOOP_QUEUE, (tv), (cb), (ctx))
73: #define eloop_timeout_add_sec(eloop, tv, cb, ctx) \
74: eloop_q_timeout_add_sec((eloop), ELOOP_QUEUE, (tv), (cb), (ctx))
75: #define eloop_timeout_add_msec(eloop, ms, cb, ctx) \
76: eloop_q_timeout_add_msec((eloop), ELOOP_QUEUE, (ms), (cb), (ctx))
77: #define eloop_timeout_delete(eloop, cb, ctx) \
78: eloop_q_timeout_delete((eloop), ELOOP_QUEUE, (cb), (ctx))
79: int eloop_q_timeout_add_tv(struct eloop *, int,
80: const struct timespec *, void (*)(void *), void *);
81: int eloop_q_timeout_add_sec(struct eloop *, int,
1.1.1.7 roy 82: unsigned int, void (*)(void *), void *);
1.1 roy 83: int eloop_q_timeout_add_msec(struct eloop *, int,
1.1.1.7 roy 84: unsigned long, void (*)(void *), void *);
1.1.1.2 roy 85: int eloop_q_timeout_delete(struct eloop *, int, void (*)(void *), void *);
1.1 roy 86:
1.1.1.8 roy 87: void eloop_signal_set_cb(struct eloop *, const int *, size_t,
1.1 roy 88: void (*)(int, void *), void *);
89: int eloop_signal_mask(struct eloop *, sigset_t *oldset);
90:
91: struct eloop * eloop_new(void);
1.1.1.6 roy 92: void eloop_clear(struct eloop *);
1.1 roy 93: void eloop_free(struct eloop *);
94: void eloop_exit(struct eloop *, int);
1.1.1.8 roy 95: void eloop_enter(struct eloop *);
1.1 roy 96: int eloop_start(struct eloop *, sigset_t *);
97:
98: #endif
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