VCL API for external callback for listener/connect event

[vpp.git] / src / vcl / test_vcl_listener_server.c

diff --git a/src/vcl/test_vcl_listener_server.c b/src/vcl/test_vcl_listener_server.c
new file mode 100644 (file)
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+++ b/src/vcl/test_vcl_listener_server.c
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+/*
+ * Copyright (c) 2018 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.
+ */
+
+
+#include <string.h>
+#include <errno.h>
+#include <stdio.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <sys/socket.h>
+
+
+#include <vcl/vppcom.h>
+#include <unistd.h>
+
+char MESSAGE[] = "Hello, World!\n";
+
+static const int PORT = 9995;
+
+void
+listener_cb (uint32_t new_session_index, vppcom_endpt_t *ep, void *stuff)
+{
+
+  vppcom_session_write (new_session_index, &MESSAGE, sizeof (MESSAGE));
+  printf ("\n Heard from port: %d\n", ep->port);
+}
+
+
+typedef struct vppcomm_listener_main_
+{
+  int new_fd;
+
+  struct event *event;
+
+} vppcomm_listener_main_t;
+
+vppcomm_listener_main_t _vlm_main;
+vppcomm_listener_main_t *vlm = &_vlm_main;
+
+
+int
+main (int argc, char **argv)
+{
+
+  int rv;
+  struct sockaddr_in sin;
+  uint32_t listen_fd;
+  vppcom_endpt_t endpt;
+
+  //Address stuff
+  memset (&sin, 0, sizeof (sin));
+  sin.sin_family = AF_INET;
+  sin.sin_port = htons (PORT);
+  //sin.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+  endpt.is_ip4 = (sin.sin_family == AF_INET);
+  endpt.ip = (uint8_t *) & sin.sin_addr;
+  endpt.port = (uint16_t) sin.sin_port;
+
+  //VCL stuff
+  rv = vppcom_app_create ("test_vcl_listener_server");
+  if (rv) return rv;
+
+  listen_fd = vppcom_session_create (VPPCOM_PROTO_TCP,
+                                         0 /* is_nonblocking */ );
+
+  rv = vppcom_session_bind (listen_fd, &endpt);
+
+  //Make a listener and dispatch
+  rv = vppcom_session_register_listener (listen_fd, listener_cb, 0,
+                                           0, 0, &MESSAGE);
+
+  if (rv)
+    {
+      fprintf (stderr, "Could not create a listener!\n");
+      return 1;
+    }
+
+  while (1)
+    {
+      sleep (3);
+    }
+
+  printf ("done\n");
+  return 0;
+}
+
+