1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/sctp/src/netinet/sctp_callout.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,103 @@
1.4 +/*-
1.5 + * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
1.6 + * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
1.7 + * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions
1.11 + * are met:
1.12 + * 1. Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + * 2. Redistributions in binary form must reproduce the above copyright
1.15 + * notice, this list of conditions and the following disclaimer in the
1.16 + * documentation and/or other materials provided with the distribution.
1.17 + * 3. Neither the name of the project nor the names of its contributors
1.18 + * may be used to endorse or promote products derived from this software
1.19 + * without specific prior written permission.
1.20 + *
1.21 + * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
1.22 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.23 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.24 + * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
1.25 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.26 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.27 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.28 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.29 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.30 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.31 + * SUCH DAMAGE.
1.32 + */
1.33 +
1.34 +#ifdef __FreeBSD__
1.35 +#include <sys/cdefs.h>
1.36 +__FBSDID("$FreeBSD$");
1.37 +#endif
1.38 +
1.39 +#ifndef _NETINET_SCTP_CALLOUT_
1.40 +#define _NETINET_SCTP_CALLOUT_
1.41 +
1.42 +/*
1.43 + * NOTE: the following MACROS are required for locking the callout
1.44 + * queue along with a lock/mutex in the OS specific headers and
1.45 + * implementation files::
1.46 + * - SCTP_TIMERQ_LOCK()
1.47 + * - SCTP_TIMERQ_UNLOCK()
1.48 + * - SCTP_TIMERQ_LOCK_INIT()
1.49 + * - SCTP_TIMERQ_LOCK_DESTROY()
1.50 + */
1.51 +
1.52 +#define _SCTP_NEEDS_CALLOUT_ 1
1.53 +
1.54 +#define SCTP_TICKS_PER_FASTTIMO 20 /* called about every 20ms */
1.55 +
1.56 +#if defined(__Userspace__)
1.57 +#if defined(__Userspace_os_Windows)
1.58 +#define SCTP_TIMERQ_LOCK() EnterCriticalSection(&SCTP_BASE_VAR(timer_mtx))
1.59 +#define SCTP_TIMERQ_UNLOCK() LeaveCriticalSection(&SCTP_BASE_VAR(timer_mtx))
1.60 +#define SCTP_TIMERQ_LOCK_INIT() InitializeCriticalSection(&SCTP_BASE_VAR(timer_mtx))
1.61 +#define SCTP_TIMERQ_LOCK_DESTROY() DeleteCriticalSection(&SCTP_BASE_VAR(timer_mtx))
1.62 +#else
1.63 +#define SCTP_TIMERQ_LOCK() (void)pthread_mutex_lock(&SCTP_BASE_VAR(timer_mtx))
1.64 +#define SCTP_TIMERQ_UNLOCK() (void)pthread_mutex_unlock(&SCTP_BASE_VAR(timer_mtx))
1.65 +#define SCTP_TIMERQ_LOCK_INIT() (void)pthread_mutex_init(&SCTP_BASE_VAR(timer_mtx), NULL)
1.66 +#define SCTP_TIMERQ_LOCK_DESTROY() (void)pthread_mutex_destroy(&SCTP_BASE_VAR(timer_mtx))
1.67 +#endif
1.68 +
1.69 +extern int ticks;
1.70 +#endif
1.71 +
1.72 +TAILQ_HEAD(calloutlist, sctp_callout);
1.73 +
1.74 +struct sctp_callout {
1.75 + TAILQ_ENTRY(sctp_callout) tqe;
1.76 + int c_time; /* ticks to the event */
1.77 + void *c_arg; /* function argument */
1.78 + void (*c_func)(void *); /* function to call */
1.79 + int c_flags; /* state of this entry */
1.80 +};
1.81 +typedef struct sctp_callout sctp_os_timer_t;
1.82 +
1.83 +#define SCTP_CALLOUT_ACTIVE 0x0002 /* callout is currently active */
1.84 +#define SCTP_CALLOUT_PENDING 0x0004 /* callout is waiting for timeout */
1.85 +
1.86 +void sctp_os_timer_init(sctp_os_timer_t *tmr);
1.87 +void sctp_os_timer_start(sctp_os_timer_t *, int, void (*)(void *), void *);
1.88 +int sctp_os_timer_stop(sctp_os_timer_t *);
1.89 +
1.90 +#define SCTP_OS_TIMER_INIT sctp_os_timer_init
1.91 +#define SCTP_OS_TIMER_START sctp_os_timer_start
1.92 +#define SCTP_OS_TIMER_STOP sctp_os_timer_stop
1.93 +/* MT FIXME: Is the following correct? */
1.94 +#define SCTP_OS_TIMER_STOP_DRAIN SCTP_OS_TIMER_STOP
1.95 +#define SCTP_OS_TIMER_PENDING(tmr) ((tmr)->c_flags & SCTP_CALLOUT_PENDING)
1.96 +#define SCTP_OS_TIMER_ACTIVE(tmr) ((tmr)->c_flags & SCTP_CALLOUT_ACTIVE)
1.97 +#define SCTP_OS_TIMER_DEACTIVATE(tmr) ((tmr)->c_flags &= ~SCTP_CALLOUT_ACTIVE)
1.98 +
1.99 +#if defined(__Userspace__)
1.100 +void sctp_start_timer(void);
1.101 +#endif
1.102 +#if defined(__APPLE__)
1.103 +void sctp_timeout(void *);
1.104 +#endif
1.105 +
1.106 +#endif
