1 files changed, 112 insertions, 0 deletions
diff --git a/vpp-api/java/jvpp/jvpp.h b/vpp-api/java/jvpp/jvpp.h
new file mode 100644
index 00000000000..15f9057fa8e
--- /dev/null
+++ b/vpp-api/java/jvpp/jvpp.h
@@ -0,0 +1,112 @@
+/*
+ * 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__ */