Implement the socket communication

	JerryScript-DCO-1.0-Signed-off-by: Levente Orban orbanl@inf.u-szeged.hu

Author: Levente Orban

jerry-core/debugger/jerry-debugger.c

@@ -1 +1,107 @@
-//TODO: Implement the socket communication
+/* Copyright 2016 University of Szeged.
+ *
+ * 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 <errno.h>
+
+#include "jerry-debugger.h"
+#include "jerry-port.h"
+
+#define PORT 5001
+#define BACKLOG 1
+
+int sock;                     /**< socket file descriptor for the remote communication */
+int connected;                /**< hold the file descriptor for the accepted socket */
+
+struct sockaddr_in server_addr, client_addr;  /**< declarations of the socket address */
+socklen_t sin_size = sizeof (struct sockaddr_in);  /**< size of the structure pointed by
+                                                    *   the server_addr and client_addr */
+
+bool remote_init ()
+{
+  /* The arguments optval is used to access option values for setsockopt(). */
+  bool optval = true;
+
+  /* Server adress declaration */
+  server_addr.sin_family = AF_INET;
+  server_addr.sin_port = htons (PORT);
+  server_addr.sin_addr.s_addr = INADDR_ANY;
+  bzero (&(server_addr.sin_zero), BACKLOG);
+
+  /* Create an endpoint for communication */
+  if ((sock = socket (AF_INET, SOCK_STREAM, 0)) == -1)
+  {
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Socket error!\n");
+    return false;
+  }
+
+  /* Set the options on socket */
+  if (setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof (int)) == -1)
+  {
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Setsockopt error!\n");
+    return false;
+  }
+
+  /* Bind to the server address */
+  if (bind (sock, (struct sockaddr *)&server_addr, sizeof (struct sockaddr)) == -1)
+  {
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Bind error, unable to bind!\n");
+    return false;
+  }
+
+  /* Listen for connections on socket */
+  if (listen (sock, BACKLOG) == -1)
+  {
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Listen error!\n");
+    return false;
+  }
+
+  jerry_port_log (JERRY_LOG_LEVEL_DEBUG, "Waiting for the client connection.\n");
+
+  /* Connect from the client */
+  connected = accept (sock, (struct sockaddr *)&client_addr, &sin_size);
+
+  jerry_port_log (JERRY_LOG_LEVEL_DEBUG,"Connected from: %s:%d\n",
+                  inet_ntoa (client_addr.sin_addr),ntohs (client_addr.sin_port));
+
+  return true;
+} /* remote_init */
+
+/* Close the socket connection with the client */
+void connection_closed ()
+{
+  jerry_port_log (JERRY_LOG_LEVEL_DEBUG, "TCPServer connection closed on port %d.\n", PORT);
+  close (connected);
+  close (sock);
+} /* connection_closed */
+
+/* Send the parsed file names to the client side */
+void send_to_client (uint16_t data_len) /**< data length */
+{
+  ssize_t byte_send;
+
+  byte_send = send (connected, jerry_debugger_buffer, data_len, 0);
+
+  /* If send returns -1 then some error messages are generated by the socket layer. */
+  if (byte_send == -1)
+  {
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error: %s\n", strerror (errno));
+  }
+  /* Compare the byte_send size with the data_len. If it is not equal then not all of the
+   * information is sent to the client. */
+  else if (byte_send != (ssize_t) data_len)
+  {
+    jerry_port_log (JERRY_LOG_LEVEL_ERROR, "Error, missing bytes from the pacakge...\n");
+  }
+} /* send_to_client */

jerry-core/debugger/jerry-debugger.h

@@ -16,12 +16,23 @@
 #ifndef JERRY_DEBUGGER_H
 #define JERRY_DEBUGGER_H
 
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdbool.h>
+
 #define MAX_MESSAGE_SIZE 128
 
+static uint8_t jerry_debugger_buffer[MAX_MESSAGE_SIZE];
+
+extern bool remote_init (void);
+extern void connection_closed (void);
+extern void send_to_client (uint16_t data_len);
+
 /**
 * Package header
 */
-typdef struct
+typedef struct
 {
   uint8_t type;                     /**< type of the message */
   uint8_t size;                     /**< size of the message */
@@ -30,10 +41,10 @@ typdef struct
 /**
 * Source file name
 */
-typdef struct
+typedef struct
 {
-  jerry_debug_message_header header;    /**< header of the source file name struct */
-  char file_name[1];                    /**< the message */
+  jerry_debug_message_header_t header;    /**< header of the source file name struct */
+  char file_name[1];                      /**< the message */
 } jerry_debug_message_source_name_t;
 
 #endif /* JERRY_DEBUGGER_H */