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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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