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/*
*------------------------------------------------------------------
* vat_helper_macros.h - collect api client helper macros in one place
*
* Copyright (c) 2016 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 __vat_helper_macros_h__
#define __vat_helper_macros_h__
/* M: construct, but don't yet send a message */
#define M(T, mp) \
do { \
vam->result_ready = 0; \
mp = vl_msg_api_alloc_as_if_client(sizeof(*mp)); \
memset (mp, 0, sizeof (*mp)); \
mp->_vl_msg_id = ntohs (VL_API_##T+__plugin_msg_base); \
mp->client_index = vam->my_client_index; \
} while(0);
#define M2(T, mp, n) \
do { \
vam->result_ready = 0; \
mp = vl_msg_api_alloc_as_if_client(sizeof(*mp)+(n)); \
memset (mp, 0, sizeof (*mp)); \
mp->_vl_msg_id = ntohs (VL_API_##T+__plugin_msg_base); \
mp->client_index = vam->my_client_index; \
} while(0);
/* S: send a message */
#define S(mp) (vl_msg_api_send_shmem (vam->vl_input_queue, (u8 *)&mp))
/* W: wait for results, with timeout */
#define W(ret) \
do { \
f64 timeout = vat_time_now (vam) + 1.0; \
ret = -99; \
\
while (vat_time_now (vam) < timeout) { \
if (vam->result_ready == 1) { \
ret = vam->retval; \
break; \
} \
vat_suspend (vam->vlib_main, 1e-5); \
} \
} while(0);
/* W2: wait for results, with timeout */
#define W2(ret, body) \
do { \
f64 timeout = vat_time_now (vam) + 1.0; \
ret = -99; \
\
while (vat_time_now (vam) < timeout) { \
if (vam->result_ready == 1) { \
(body); \
ret = vam->retval; \
break; \
} \
vat_suspend (vam->vlib_main, 1e-5); \
} \
} while(0);
#endif /* __vat_helper_macros_h__ */
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