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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_jvpp_common_h__
#define __included_jvpp_common_h__
//
#include <vppinfra/types.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;
/* JNI Native Method Interface pointer for message handlers */
JNIEnv *jenv;
/* JNI Invoke Interface pointer for attachment of rx thread to java thread */
JavaVM *jvm;
/* Convenience */
svm_queue_t * vl_input_queue;
u32 my_client_index;
uword *messages_hash;
} jvpp_main_t;
extern jvpp_main_t jvpp_main __attribute__((aligned (64)));
static_always_inline u32 vppjni_get_context_id(jvpp_main_t * jm) {
return __sync_add_and_fetch(&jm->context_id, 1);
}
static_always_inline void vppjni_lock(jvpp_main_t * jm, u32 tag) {
while (__sync_lock_test_and_set(&jm->lock, 1))
;
jm->tag = tag;
}
static_always_inline void vppjni_unlock(jvpp_main_t * jm) {
jm->tag = 0;
CLIB_MEMORY_BARRIER();
jm->lock = 0;
}
/**
* Calls onError callback on callbackObject reference. Passes instance of callbackExceptionClass as parameter.
*/
void call_on_error(const char* callName, int contextId, int retval,
jclass callbackClass, jobject callbackObject,
jclass callbackExceptionClass);
/**
* Retrieves message id based on message name and crc (key format: name_crc).
* Throws java/lang/IllegalStateException on failure.
*/
u32 get_message_id(JNIEnv *env, const char* key);
#endif /* __included_jvpp_common_h__ */
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