1de7b4b805
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
150 lines
4.5 KiB
C
150 lines
4.5 KiB
C
/*
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* event.h
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*/
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2009 Maksim Yevmenkin <m_evmenkin@yahoo.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* $FreeBSD$ */
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/*
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* Hack to provide libevent (see devel/libevent port) like API.
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* Should be removed if FreeBSD ever decides to import libevent into base.
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*/
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#ifndef _EVENT_H_
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#define _EVENT_H_ 1
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#define EV_READ 0x02
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#define EV_WRITE 0x04
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#define EV_PERSIST 0x10 /* Persistent event */
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#define EV_PENDING (1 << 13) /* internal use only! */
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#define EV_HAS_TIMEOUT (1 << 14) /* internal use only! */
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#define EV_CURRENT (1 << 15) /* internal use only! */
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struct event
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{
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int fd;
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short flags;
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void (*cb)(int, short, void *);
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void *cbarg;
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struct timeval timeout;
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struct timeval expire;
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#ifdef EVENT_DEBUG
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char const *files[3];
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int lines[3];
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#endif
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TAILQ_ENTRY(event) next;
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};
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void event_init (void);
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int event_dispatch (void);
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void __event_set (struct event *, int, short,
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void (*)(int, short, void *), void *);
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int __event_add (struct event *, struct timeval const *);
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int __event_del (struct event *);
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#ifdef EVENT_DEBUG
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#define event_log_err(fmt, args...) syslog(LOG_ERR, fmt, ##args)
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#define event_log_info(fmt, args...) syslog(LOG_INFO, fmt, ##args)
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#define event_log_notice(fmt, args...) syslog(LOG_NOTICE, fmt, ##args)
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#define event_log_debug(fmt, args...) syslog(LOG_DEBUG, fmt, ##args)
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#define event_set(ev, fd, flags, cb, cbarg) \
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_event_set(__FILE__, __LINE__, ev, fd, flags, cb, cbarg)
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#define event_add(ev, timeout) \
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_event_add(__FILE__, __LINE__, ev, timeout)
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#define event_del(ev) \
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_event_del(__FILE__, __LINE__, ev)
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#define evtimer_set(ev, cb, cbarg) \
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_event_set(__FILE__, __LINE__, ev, -1, 0, cb, cbarg)
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#define evtimer_add(ev, timeout) \
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_event_add(__FILE__, __LINE__, ev, timeout)
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static inline void
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_event_set(char const *file, int line, struct event *ev, int fd, short flags,
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void (*cb)(int, short, void *), void *cbarg)
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{
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event_log_debug("set %s:%d ev=%p, fd=%d, flags=%#x, cb=%p, cbarg=%p",
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file, line, ev, fd, flags, cb, cbarg);
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ev->files[0] = file;
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ev->lines[0] = line;
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__event_set(ev, fd, flags, cb, cbarg);
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}
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static inline int
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_event_add(char const *file, int line, struct event *ev,
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struct timeval const *timeout) {
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event_log_debug("add %s:%d ev=%p, fd=%d, flags=%#x, cb=%p, cbarg=%p, " \
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"timeout=%p", file, line, ev, ev->fd, ev->flags, ev->cb,
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ev->cbarg, timeout);
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ev->files[1] = file;
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ev->lines[1] = line;
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return (__event_add(ev, timeout));
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}
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static inline int
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_event_del(char const *file, int line, struct event *ev)
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{
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event_log_debug("del %s:%d ev=%p, fd=%d, flags=%#x, cb=%p, cbarg=%p",
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file, line, ev, ev->fd, ev->flags, ev->cb, ev->cbarg);
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ev->files[2] = file;
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ev->lines[2] = line;
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return (__event_del(ev));
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}
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#else
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#define event_log_err(fmt, args...)
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#define event_log_info(fmt, args...)
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#define event_log_notice(fmt, args...)
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#define event_log_debug(fmt, args...)
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#define event_set(ev, fd, flags, cb, cbarg) \
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__event_set(ev, fd, flags, cb, cbarg)
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#define event_add(ev, timeout) \
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__event_add(ev, timeout)
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#define event_del(ev) \
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__event_del(ev)
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#define evtimer_set(ev, cb, cbarg) \
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__event_set(ev, -1, 0, cb, cbarg)
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#define evtimer_add(ev, timeout) \
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__event_add(ev, timeout)
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#endif /* EVENT_DEBUG */
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#endif /* ndef _EVENT_H_ */
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