Daniele Lacamera / PicoTCP Featured

Free (GPLv2) TCP/IP stack developed by TASS Belgium

Dependents:   lpc1768-picotcp-demo ZeroMQ_PicoTCP_Publisher_demo TCPSocket_HelloWorld_PicoTCP Pico_TCP_UDP_Test ... more

PicoTCP. Copyright (c) 2013 TASS Belgium NV.

Released under the GNU General Public License, version 2.

Different licensing models may exist, at the sole discretion of the Copyright holders.

Official homepage: http://www.picotcp.com

Bug tracker: https://github.com/tass-belgium/picotcp/issues

Development steps:

  • initial integration with mbed RTOS
  • generic mbed Ethernet driver
  • high performance NXP LPC1768 specific Ethernet driver
  • Multi-threading support for mbed RTOS
  • Berkeley sockets and integration with the New Socket API
  • Fork of the apps running on top of the New Socket API
  • Scheduling optimizations
  • Debugging/benchmarking/testing

Demo application (measuring TCP sender performance):

Import programlpc1768-picotcp-demo

A PicoTCP demo app testing the ethernet throughput on the lpc1768 mbed board.

Last commit 17 May 2013 by TASS Belgium

Diff: Socket/TCPSocketConnection.cpp

Revision:
19:c7debad9a20a
Parent:
18:c6f67fcfc62a
Child:
24:8bff2b51ea3b
--- a/Socket/TCPSocketConnection.cpp	Fri Jun 07 13:44:59 2013 +0000
+++ b/Socket/TCPSocketConnection.cpp	Sat Jun 08 13:47:53 2013 +0000
@@ -50,7 +50,7 @@
         return -1;
     }
     
-    if (picotcp_connect(_sock_fd, (struct sockaddr *) &_remoteHost, sizeof(_remoteHost)) < 0) {
+    if (picotcp_connect(_ep, (struct sockaddr *) &_remoteHost, sizeof(_remoteHost)) < 0) {
         close();
         return -1;
     }
@@ -64,7 +64,7 @@
 }
 
 int TCPSocketConnection::send(char* data, int length) {
-    if ((_sock_fd < 0) || !_is_connected)
+    if ((_ep < 0) || !_is_connected)
         return -1;
     
     if (!_blocking) {
@@ -75,43 +75,26 @@
             return -1;
         }
     }
-    
-    int n = picotcp_write(_sock_fd, data, length);
-    _is_connected = (picotcp_state(_sock_fd) == SOCK_CONNECTED);
-    
-    return n;
+    return picotcp_write(_ep, data, length);
 }
 
 // -1 if unsuccessful, else number of bytes written
 int TCPSocketConnection::send_all(char* data, int length) {
-    if ((_sock_fd < 0) || !_is_connected)
+    if ((_ep < 0) || !_is_connected)
         return -1;
-    
-    size_t writtenLen = 0;
-    TimeInterval timeout(_timeout);
-    while (writtenLen < length) {
-        if (!_blocking) {
-            // Wait for socket to be writeable
-            if (wait_writable(timeout) != 0)
-                return writtenLen;
-        }
         
-        int ret = picotcp_write(_sock_fd, data + writtenLen, length - writtenLen);
-        if (ret > 0) {
-            writtenLen += ret;
-            continue;
-        } else if (ret == 0) {
-            _is_connected = (picotcp_state(_sock_fd) == SOCK_CONNECTED);
-            return writtenLen;
-        } else {
-            return -1; //Connnection error
+    if (!_blocking) {
+       TimeInterval timeout(_timeout);
+       // Wait for socket to be writeable
+       if (wait_writable(timeout) != 0) {
+           return 0;
         }
     }
-    return writtenLen;
+    return picotcp_write(_ep, data, length);
 }
 
 int TCPSocketConnection::receive(char* data, int length) {
-    if ((_sock_fd < 0) || !_is_connected)
+    if ((_ep < 0) || !_is_connected)
         return -1;
     
     if (!_blocking) {
@@ -122,36 +105,10 @@
             return -1;
         }
     }
-    
-    int n = picotcp_read(_sock_fd, data, length);
-    _is_connected = (picotcp_state(_sock_fd) == SOCK_CONNECTED);
-    
-    return n;
+    return picotcp_read(_ep, data, length);
 }
 
 // -1 if unsuccessful, else number of bytes received
 int TCPSocketConnection::receive_all(char* data, int length) {
-    if ((_sock_fd < 0) || !_is_connected)
-        return -1;
-    
-    size_t readLen = 0;
-    TimeInterval timeout(_timeout);
-    while (readLen < length) {
-        if (!_blocking) {
-            //Wait for socket to be readable
-            if (wait_readable(timeout) != 0)
-                return readLen;
-        }
-        
-        int ret = picotcp_read(_sock_fd, data + readLen, length - readLen);
-        if (ret > 0) {
-            readLen += ret;
-        } else if (ret == 0) {
-            _is_connected = (picotcp_state(_sock_fd) == SOCK_CONNECTED);
-            return readLen;
-        } else {
-            return -1; //Connnection error
-        }
-    }
-    return readLen;
+    return receive(data, length);
 }