WiFi API first draft

WiFi/Client.cpp

@@ -0,0 +1,164 @@
+extern "C" {
+  #include "wl_types.h"
+  #include "socket.h"
+  #include "string.h"
+}
+
+#include "WProgram.h"
+
+#include "WiFi.h"
+#include "Client.h"
+#include "Server.h"
+#include "server_drv.h"
+
+uint16_t Client::_srcport = 0;
+
+Client::Client(uint8_t sock) {
+  _sock = sock;
+}
+
+Client::Client(uint8_t *ip, uint16_t port) {
+  _ip = ip;
+  _port = port;  
+  _sock = 255;
+}
+
+uint8_t Client::getFirstSock()
+{
+    for (int i = 0; i < MAX_SOCK_NUM; i++) {
+      if (WiFiClass::_state[i] < 0)
+      {
+          return i;
+      }
+    }
+    return SOCK_NOT_AVAIL;
+}
+
+uint8_t Client::connect() {
+    _sock = getFirstSock();
+
+//    _srcport++;
+//  if (_srcport + 1024 == 0) _srcport = 0;
+    _socket = socket(TCP_SOCKET);
+    if (_socket<0)
+    {
+        return 0; 
+    }else{
+        WiFiClass::_state[_sock] = _socket;
+    }
+  
+  if (!::connect(_socket, _ip, _port)) {
+    return 0;
+  }
+  return 1;
+}
+
+void Client::write(uint8_t b) {
+  if (_sock != 255)
+  {
+      while (!ServerDrv::isDataSent(_sock));
+      ServerDrv::sendData(_sock, &b, 1);
+  }
+}
+
+void Client::write(const char *str) {
+  if (_sock != 255)
+  {
+      while (!ServerDrv::isDataSent(_sock));
+      unsigned int len = strlen(str);
+      ServerDrv::sendData(_sock, (const uint8_t *)str, len);
+  }
+}
+
+void Client::write(const uint8_t *buf, size_t size) {
+  if (_sock != 255)
+  {
+      while (!ServerDrv::isDataSent(_sock));
+      ServerDrv::sendData(_sock, buf, size);
+  }
+  
+}
+
+int Client::available() {
+  if (_sock != 255)
+  {
+      return ServerDrv::availData(_sock);
+  }
+   
+  return 0;
+}
+
+int Client::read() {
+  uint8_t b;
+  if (!available())
+    return -1;
+  ServerDrv::getData(_sock, &b);
+  return b;
+}
+
+
+int Client::readBuf(uint8_t* buf, uint16_t* len) {
+  if (!ServerDrv::getDataBuf(_sock, buf, len))
+      return -1;
+  return 0;
+}
+
+void Client::flush() {
+  while (available())
+    read();
+}
+
+void Client::stop() {
+  if (_sock == 255)
+    return;
+  
+  // attempt to close the connection gracefully (send a FIN to other side)
+  disconnect(WiFiClass::_state[_sock]);
+  unsigned long start = millis();
+  
+  // wait a second for the connection to close
+  while (status() != CLOSED && millis() - start < 1000)
+    delay(1);
+    
+  // if it hasn't closed, close it forcefully
+  if (status() != CLOSED)
+    close(_sock);
+  
+  WiFiClass::_server_port[_sock] = 0;
+  _sock = 255;
+}
+
+uint8_t Client::connected() {
+  if (_sock == 255) {
+    return 0;
+  } else {
+    uint8_t s = status();
+    return !(s == LISTEN || s == CLOSED || s == FIN_WAIT_1 || s == FIN_WAIT_2 ||
+             (s == CLOSE_WAIT && !available()));
+  }
+}
+
+uint8_t Client::status() {
+    if (_sock == 255) {
+    return CLOSED;
+  } else {
+    return ServerDrv::getState(_sock);
+  }
+}
+
+// the next three functions are a hack so we can compare the client returned
+// by Server::available() to null, or use it as the condition in an
+// if-statement.  this lets us stay compatible with the Processing network
+// library.
+
+uint8_t Client::operator==(int p) {
+  return _sock == 255;
+}
+
+uint8_t Client::operator!=(int p) {
+  return _sock != 255;
+}
+
+Client::operator bool() {
+  return _sock != 255;
+}