Diff: Socket/WncSocket.cpp

Revision:

26:81e520908460

Parent:

9:9f0578ff157a

Child:

28:dceb8da78e6d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/WncSocket.cpp	Fri Mar 24 21:43:57 2017 +0000
@@ -0,0 +1,114 @@
+/* =====================================================================
+   Copyright © 2016, Avnet (R)
+
+   Contributors:
+     * James M Flynn, www.em.avnet.com 
+ 
+   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.
+
+    @file          WNCInterface.cpp
+    @version       1.0
+    @date          Sept 2016
+
+======================================================================== */
+#include "../WNCInterface.h"
+#include "WncSocket.h"
+#include <cstring>
+
+class WNCInterface;
+
+//
+// Set up the defaults in the constructor.  If the caller doesn't change anything
+// the APN will be set for AT&T, port #40 and timeout 1.5 seconds
+//
+Socket::Socket() : 
+  _sock_type(-1), 
+  _timeout(1500) {
+}
+
+Socket::~Socket() {
+}
+
+
+//
+// ensure we have a WNC Controller attached and initialized by calling to get the 
+// network status,  This will provide us with all the network information.  if we
+// are not connected, will return -1.
+// 
+int Socket::init(int timeout) {
+
+    _timeout = timeout;
+    M_LOCK;
+    int ret = WNCInterface::_pwnc->getWncNetworkingStats(&WNCInterface::myNetStats)? 0:-1;
+    M_ULOCK;
+    return ret;
+}
+
+//
+// Connect this socket to a user specified URL or IP address.  It could be 
+// either a TCP or UDP socket. The user is also expected to provide a port #.  
+// If the connection failed for any reason return 0, otherwise, return 1;
+//
+int Socket::connect(char *url, int type, int port) {
+  int rslt;
+  char address[5];
+  
+  CHK_WNCFE(( WNCInterface::_pwnc->getWncStatus() == FATAL_FLAG ), fail);
+ 
+  // lets determine if they passed in an IP or a URL
+  rslt = std::sscanf(url, "%3u.%3u.%3u.%3u",
+            (unsigned int*)&address[0], (unsigned int*)&address[1],
+            (unsigned int*)&address[2], (unsigned int*)&address[3]);
+  M_LOCK;  
+  if (rslt == 4) 
+    rslt = WNCInterface::_pwnc->setIpAddr(0,url);
+  else 
+    rslt = WNCInterface::_pwnc->resolveUrl(0,url);
+
+  if( rslt ) {
+    _sock_type = type;             //resolved the URL indicate socket 0 is open
+    rslt = WNCInterface::_pwnc->openSocket(0, port, (_sock_type==SOCK_STREAM)? 1:0, _timeout);
+    } 
+  M_ULOCK;
+  return rslt;
+} 
+
+
+//
+// disconnect the currently open socket.
+// -1 if there was an error
+//  0 if we disconnected
+//
+int Socket::disconnect() {
+  if( _sock_type<0 )
+    return 0;  //nothing is connected currently
+
+  CHK_WNCFE(( WNCInterface::_pwnc->getWncStatus() == FATAL_FLAG ), fail);
+  M_LOCK;
+  int ret = !WNCInterface::_pwnc->closeSocket(0);
+  M_ULOCK;
+  return ret;
+}
+
+void Socket::set_blocking(bool blocking, unsigned int timeout) {
+    blocking = blocking;
+    timeout= timeout;
+
+    CHK_WNCFE(( WNCInterface::_pwnc->getWncStatus() == FATAL_FLAG ), void);
+    M_LOCK;
+    WNCInterface::_pwnc->setReadRetryWait(0, 0);
+    WNCInterface::_pwnc->setReadRetries(0, 0);
+    M_ULOCK;
+}
+
+