Diff: Socket/TCPSocketConnection.cpp

Revision:

1:fb4494783863

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Socket/TCPSocketConnection.cpp	Fri Aug 24 13:48:36 2012 +0000
@@ -0,0 +1,125 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * 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 "TCPSocketConnection.h"
+#include <algorithm>
+
+TCPSocketConnection::TCPSocketConnection() {}
+
+int TCPSocketConnection::connect(const char* host, const int port)
+{  
+    if (!wifi->connect(host, port))
+        return -1;
+    wifi->flush();
+    return 0;
+}
+
+bool TCPSocketConnection::is_connected(void)
+{
+    return wifi->is_connected();
+}
+
+int TCPSocketConnection::send(char* data, int length)
+{
+    Timer tmr;
+
+    if (!_blocking) {
+        tmr.start();
+        while (tmr.read_ms() < _timeout) {
+            if (wifi->writeable())
+                break;
+        }
+        if (tmr.read_ms() >= _timeout) {
+            return -1;
+        }
+    }
+    return wifi->send(data, length);
+}
+
+// -1 if unsuccessful, else number of bytes written
+int TCPSocketConnection::send_all(char* data, int length)
+{
+    Timer tmr;
+    int idx = 0;
+    tmr.start();
+
+    while ((tmr.read_ms() < _timeout) || _blocking) {
+
+        idx += wifi->send(data, length);
+
+        if (idx == length)
+            return idx;
+    }
+    return (idx == 0) ? -1 : idx;
+}
+
+// -1 if unsuccessful, else number of bytes received
+int TCPSocketConnection::receive(char* data, int length)
+{
+    Timer tmr;
+    int time = -1;
+    
+    
+    if (!_blocking) {
+        tmr.start();
+        while (time < _timeout + 20) {
+            if (wifi->readable()) {
+                break;
+            }
+            time = tmr.read_ms();
+        }
+        if (time >= _timeout + 20) {
+            return -1;
+        }
+    }
+
+
+    while(!wifi->readable());
+    int nb_available = wifi->readable();
+    for (int i = 0; i < min(nb_available, length); i++) {
+        data[i] = wifi->getc();
+    }
+
+    return min(nb_available, length);
+}
+
+
+// -1 if unsuccessful, else number of bytes received
+int TCPSocketConnection::receive_all(char* data, int length)
+{
+    Timer tmr;
+    int idx = 0;
+    int time = -1;
+
+    tmr.start();
+    
+    while (time < _timeout || _blocking) {
+
+        int nb_available = wifi->readable();
+        for (int i = 0; i < min(nb_available, length); i++) {
+            data[idx++] = wifi->getc();
+        }
+
+        if (idx == length)
+            break;
+
+        time = tmr.read_ms();
+    }
+
+    return (idx == 0) ? -1 : idx;
+}