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Arduino/libraries/WiFi/WiFiClient.cpp

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extern "C" {
#include "utility/wl_definitions.h"
#include "utility/wl_types.h"
#include "socket.h"
#include "string.h"
#include "utility/debug.h"
}
#include "WiFi.h"
#include "WiFiClient.h"
#include "WiFiServer.h"
#include "server_drv.h"
uint16_t WiFiClient::_srcport = 1024;
WiFiClient::WiFiClient() : _sock(MAX_SOCK_NUM) {
}
WiFiClient::WiFiClient(uint8_t sock) : _sock(sock) {
}
int WiFiClient::connect(const char* host, uint16_t port) {
IPAddress remote_addr;
if (WiFi.hostByName(host, remote_addr))
{
return connect(remote_addr, port);
}
return 0;
}
int WiFiClient::connect(IPAddress ip, uint16_t port) {
_sock = getFirstSocket();
if (_sock != NO_SOCKET_AVAIL)
{
ServerDrv::startClient(uint32_t(ip), port, _sock);
WiFiClass::_state[_sock] = _sock;
unsigned long start = millis();
// wait 4 second for the connection to close
while (!connected() && millis() - start < 10000)
delay(1);
if (!connected())
{
return 0;
}
}else{
Serial.println("No Socket available");
return 0;
}
return 1;
}
size_t WiFiClient::write(uint8_t b) {
return write(&b, 1);
}
size_t WiFiClient::write(const uint8_t *buf, size_t size) {
if (_sock >= MAX_SOCK_NUM)
{
setWriteError();
return 0;
}
if (size==0)
{
setWriteError();
return 0;
}
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if (!ServerDrv::sendData(_sock, buf, size))
{
setWriteError();
return 0;
}
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if (!ServerDrv::checkDataSent(_sock))
{
setWriteError();
return 0;
}
return size;
}
int WiFiClient::available() {
if (_sock != 255)
{
return ServerDrv::availData(_sock);
}
return 0;
}
int WiFiClient::read() {
uint8_t b;
if (!available())
return -1;
ServerDrv::getData(_sock, &b);
return b;
}
int WiFiClient::read(uint8_t* buf, size_t size) {
if (!ServerDrv::getDataBuf(_sock, buf, &size))
return -1;
return 0;
}
int WiFiClient::peek() {
uint8_t b;
if (!available())
return -1;
ServerDrv::getData(_sock, &b, 1);
return b;
}
void WiFiClient::flush() {
while (available())
read();
}
void WiFiClient::stop() {
if (_sock == 255)
return;
ServerDrv::stopClient(_sock);
unsigned long start = millis();
// wait a second for the connection to close
while (status() != CLOSED && millis() - start < 1000)
delay(1);
_sock = 255;
}
uint8_t WiFiClient::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 == TIME_WAIT ||
s == SYN_SENT || s== SYN_RCVD ||
(s == CLOSE_WAIT && !available()));
}
}
uint8_t WiFiClient::status() {
if (_sock == 255) {
return CLOSED;
} else {
return ServerDrv::getClientState(_sock);
}
}
WiFiClient::operator bool() {
return _sock != 255;
}
// Private Methods
uint8_t WiFiClient::getFirstSocket()
{
for (int i = 0; i < MAX_SOCK_NUM; i++) {
if (WiFiClass::_state[i] == 0)
{
return i;
}
}
return SOCK_NOT_AVAIL;
}