igmp_timer.h

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/*
 *------------------------------------------------------------------
 * Copyright (c) 2017 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *------------------------------------------------------------------
 */
 
#ifndef _IGMP_TIMER_H_
#define _IGMP_TIMER_H_
 
#include <vlib/vlib.h>
 
/**
 * The id of a running timer
 */
typedef u32 igmp_timer_id_t;
 
#define IGMP_TIMER_ID_INVALID (~0)
 
/**
 * A call-back function invoked when a timer expires;
 *  @param obj - the [pool] index of the object that scheduled the timer
 *  @param data - Data registered by the client at schedule time.
 */
typedef void (*igmp_timer_function_t) (u32 obj, void *data);
 
/**
 * @brief
 *  Schedule a timer to expire in 'when' seconds
 *
 */
extern igmp_timer_id_t igmp_timer_schedule (f64 when,
                                            u32 obj,
                                            igmp_timer_function_t fn,
                                            void *data);
 
extern void igmp_timer_retire (igmp_timer_id_t * tid);
extern int igmp_timer_is_running (igmp_timer_id_t tid);
 
extern f64 igmp_timer_get_expiry_time (igmp_timer_id_t t);
extern void *igmp_timer_get_data (igmp_timer_id_t t);
extern void igmp_timer_set_data (igmp_timer_id_t t, void *data);
 
extern u8 *format_igmp_timer_id (u8 * s, va_list * args);
 
/**
 * IGMP timer types and their values
 *  QUERY - the general query timer
 *  SRC - source expiration
 *  LEAVE - leave latency
 */
#define foreach_igmp_timer_type \
  _ (0x1, QUERY)                \
  _ (0x2, SRC)                  \
  _ (0x3, LEAVE)                \
  _ (0x4, REPORT_INTERVAL)
 
typedef enum igmp_timer_type_t_
{
#define _(n,f) IGMP_TIMER_##f = n,
  foreach_igmp_timer_type
#undef _
} igmp_timer_type_t;
 
extern u32 igmp_timer_type_get (igmp_timer_type_t t);
extern void igmp_timer_type_set (igmp_timer_type_t t, u32 v);
 
#endif /* IGMP_TIMER_H_ */
 
/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */