stats.h

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/*
 * Copyright (c) 2015 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 __included_stats_h__
#define __included_stats_h__

#include <time.h>
#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vnet/interface.h>
#include <pthread.h>
#include <vlib/threads.h>
#include <vlib/unix/unix.h>
#include <vlibmemory/api.h>
#include <vlibmemory/unix_shared_memory_queue.h>

typedef struct {
    u32 client_index;           /* in memclnt registration pool */
    u32 client_pid;             
} vpe_client_registration_t;

typedef struct {
    volatile u32 lock;
    volatile u32 release_hint;
    u32 thread_id;
    u32 count;
    int tag;
} data_structure_lock_t;

typedef struct {
    void *mheap;
    pthread_t thread_self;
    pthread_t thread_handle;

    u32 stats_poll_interval_in_seconds;
    u32 enable_poller;

    uword *stats_registration_hash;
    vpe_client_registration_t *stats_registrations;

    /* control-plane data structure lock */
    data_structure_lock_t * data_structure_lock;

    /* bail out of FIB walk if set */
    clib_longjmp_t jmp_buf;

    /* convenience */
    vlib_main_t * vlib_main;
    vnet_main_t * vnet_main;
    vnet_interface_main_t * interface_main;
    api_main_t * api_main;
} stats_main_t;

stats_main_t stats_main;

void dslock (stats_main_t *sm, int release_hint, int tag);
void dsunlock (stats_main_t *sm);

#endif /* __included_stats_h__ */