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/*
* 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 __included_vppjni_h__
#define __included_vppjni_h__
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vnet/api_errno.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <jni.h>
typedef struct {
/* Unique identifier used for matching replays with requests */
volatile u32 context_id;
/* Spinlock */
volatile u32 lock;
u32 tag;
/* Used for first control ping */
// TODO better names?
volatile u32 result_ready;
volatile i32 retval;
/* JNI Native Method Interface pointer for message handlers */
JNIEnv *jenv;
/* thread cleanup */
pthread_key_t cleanup_rx_thread_key;
/* JNI Invoke Interface pointer for attachment of rx thread to java thread */
JavaVM *jvm;
/* Callback object and class references enabling asynchronous Java calls */
jobject callback;
jclass callbackClass;
/* Connected indication */
volatile u8 is_connected;
/* Convenience */
unix_shared_memory_queue_t * vl_input_queue;
u32 my_client_index;
} vppjni_main_t;
vppjni_main_t vppjni_main __attribute__((aligned (64)));
static inline u32 vppjni_get_context_id (vppjni_main_t * jm)
{
return __sync_add_and_fetch (&jm->context_id, 1);
}
static inline void vppjni_lock (vppjni_main_t * jm, u32 tag)
{
while (__sync_lock_test_and_set (&jm->lock, 1))
;
jm->tag = tag;
}
static inline void vppjni_unlock (vppjni_main_t * jm)
{
jm->tag = 0;
CLIB_MEMORY_BARRIER();
jm->lock = 0;
}
static inline int vppjni_sanity_check (vppjni_main_t * jm)
{
if (!jm->is_connected)
return VNET_API_ERROR_NOT_CONNECTED;
return 0;
}
// TODO remove macros (code is now fully autogenerated)
/* M: construct, but don't yet send a message */
#define M(T,t) \
do { \
jm->result_ready = 0; \
mp = vl_msg_api_alloc(sizeof(*mp)); \
memset (mp, 0, sizeof (*mp)); \
mp->_vl_msg_id = ntohs (VL_API_##T); \
mp->client_index = jm->my_client_index; \
} while(0);
#define M2(T,t,n) \
do { \
jm->result_ready = 0; \
mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \
memset (mp, 0, sizeof (*mp)); \
mp->_vl_msg_id = ntohs (VL_API_##T); \
mp->client_index = jm->my_client_index; \
} while(0);
/* S: send a message */
#define S (vl_msg_api_send_shmem (jm->vl_input_queue, (u8 *)&mp))
#endif /* __included_vppjni_h__ */
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