113 lines
3.2 KiB
C
113 lines
3.2 KiB
C
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/*
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* Copyright (c) 2016 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __included_vppjni_h__
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#define __included_vppjni_h__
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#include <vnet/vnet.h>
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#include <vnet/ip/ip.h>
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#include <vnet/api_errno.h>
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#include <vlibapi/api.h>
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#include <vlibmemory/api.h>
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#include <jni.h>
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typedef struct {
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/* Unique identifier used for matching replays with requests */
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volatile u32 context_id;
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/* Spinlock */
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volatile u32 lock;
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u32 tag;
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/* Used for first control ping */
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// TODO better names?
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volatile u32 result_ready;
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volatile i32 retval;
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/* JNI Native Method Interface pointer for message handlers */
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JNIEnv *jenv;
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/* thread cleanup */
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pthread_key_t cleanup_rx_thread_key;
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/* JNI Invoke Interface pointer for attachment of rx thread to java thread */
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JavaVM *jvm;
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/* Callback object and class references enabling asynchronous Java calls */
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jobject callback;
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jclass callbackClass;
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/* Connected indication */
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volatile u8 is_connected;
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/* Convenience */
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unix_shared_memory_queue_t * vl_input_queue;
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u32 my_client_index;
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} vppjni_main_t;
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vppjni_main_t vppjni_main __attribute__((aligned (64)));
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static inline u32 vppjni_get_context_id (vppjni_main_t * jm)
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{
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return __sync_add_and_fetch (&jm->context_id, 1);
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}
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static inline void vppjni_lock (vppjni_main_t * jm, u32 tag)
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{
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while (__sync_lock_test_and_set (&jm->lock, 1))
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;
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jm->tag = tag;
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}
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static inline void vppjni_unlock (vppjni_main_t * jm)
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{
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jm->tag = 0;
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CLIB_MEMORY_BARRIER();
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jm->lock = 0;
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}
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static inline int vppjni_sanity_check (vppjni_main_t * jm)
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{
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if (!jm->is_connected)
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return VNET_API_ERROR_NOT_CONNECTED;
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return 0;
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}
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// TODO remove macros (code is now fully autogenerated)
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/* M: construct, but don't yet send a message */
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#define M(T,t) \
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do { \
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jm->result_ready = 0; \
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mp = vl_msg_api_alloc(sizeof(*mp)); \
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memset (mp, 0, sizeof (*mp)); \
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mp->_vl_msg_id = ntohs (VL_API_##T); \
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mp->client_index = jm->my_client_index; \
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} while(0);
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#define M2(T,t,n) \
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do { \
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jm->result_ready = 0; \
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mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \
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memset (mp, 0, sizeof (*mp)); \
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mp->_vl_msg_id = ntohs (VL_API_##T); \
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mp->client_index = jm->my_client_index; \
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} while(0);
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/* S: send a message */
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#define S (vl_msg_api_send_shmem (jm->vl_input_queue, (u8 *)&mp))
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#endif /* __included_vppjni_h__ */
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