Diff: MbedDataSource.cpp

Revision:

13:e76920d5e1ec

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MbedDataSource.cpp	Fri Apr 11 09:33:45 2014 +0000
@@ -0,0 +1,60 @@
+#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;
+}
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