Diff: MbedDataSource.cpp

Revision:

0:099f76422485

Child:

11:e1bee9a77652

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MbedDataSource.cpp	Thu Jul 03 20:38:04 2014 +0200
@@ -0,0 +1,88 @@
+/*
+ * MbedDataSource.cpp
+ *
+ * Created on: Feb 1, 2013
+ * * Authors: Vincent Wochnik <v.wochnik@gmail.com>
+ *
+ * Copyright (c) 2013 Cumulocity GmbH
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "MbedDataSource.h"
+#include "stdio.h"
+
+MbedDataSource::MbedDataSource(TCPSocketConnection& sock) : _sock(sock)
+{
+    _offset = _len = 0;
+    _timeout = false;
+}
+
+MbedDataSource::~MbedDataSource()
+{
+}
+
+char MbedDataSource::read()
+{
+    while (_offset == _len) {
+        if (!receive())
+            return 0;
+    }
+    
+    return _buf[_offset++];
+}
+
+uint8_t MbedDataSource::status()
+{
+    if (!_sock.is_connected())
+        return DS_STATUS_CLOSED;
+    
+    if (_timeout)
+        return DS_STATUS_TIMEOUT;
+    
+    return DS_STATUS_OK;
+}
+
+bool MbedDataSource::receive()
+{
+    int ret;
+
+    if (status() != DS_STATUS_OK)
+        return false;
+    
+    _sock.set_blocking(true, 60000);
+    ret = _sock.receive(_buf, MBED_SOURCE_BUFFER_SIZE);
+    
+    if (ret < 0) {
+        _timeout = true;
+        return false;
+    }
+    
+    _len = (size_t)ret;
+    _offset = 0;
+    
+    return true;
+}
+
+void MbedDataSource::reset()
+{
+    _len = _offset = 0;
+    _timeout = false;
+}