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/*
* Copyright (c) 2021 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.
*/
#include <vapi/vapi_safe.h>
#include <stdlib.h>
#include <stdio.h>
#define APP_NAME "hicn_plugin"
#define MAX_OUTSTANDING_REQUESTS 4
#define RESPONSE_QUEUE_SIZE 2
DEFINE_VAPI_MSG_IDS_HICN_API_JSON
DEFINE_VAPI_MSG_IDS_INTERFACE_API_JSON
DEFINE_VAPI_MSG_IDS_IP_API_JSON
DEFINE_VAPI_MSG_IDS_UDP_API_JSON
DEFINE_VAPI_MSG_IDS_MEMIF_API_JSON
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
vapi_ctx_t g_vapi_ctx_instance = NULL;
u32 count = 0;
vapi_error_e
vapi_connect_safe (vapi_ctx_t *vapi_ctx_ret, int async)
{
vapi_error_e rv = VAPI_OK;
vapi_lock ();
if (!g_vapi_ctx_instance)
{
rv = vapi_ctx_alloc (&g_vapi_ctx_instance);
if (rv != VAPI_OK)
goto err;
}
if (!count)
{
rv = vapi_connect (g_vapi_ctx_instance, APP_NAME, NULL,
MAX_OUTSTANDING_REQUESTS, RESPONSE_QUEUE_SIZE,
async ? VAPI_MODE_NONBLOCKING : VAPI_MODE_BLOCKING,
true);
if (rv != VAPI_OK)
goto err;
}
count++;
*vapi_ctx_ret = g_vapi_ctx_instance;
vapi_unlock ();
return rv;
err:
vapi_unlock ();
return VAPI_ENOMEM;
}
vapi_error_e
vapi_disconnect_safe ()
{
vapi_error_e rv = VAPI_OK;
vapi_lock ();
count--;
if (count == 0)
{
rv = vapi_disconnect (g_vapi_ctx_instance);
vapi_ctx_free (g_vapi_ctx_instance);
g_vapi_ctx_instance = NULL;
}
vapi_unlock ();
return rv;
}
void
vapi_lock ()
{
pthread_mutex_lock (&mutex);
}
void
vapi_unlock ()
{
pthread_mutex_unlock (&mutex);
}
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