722 lines
14 KiB
C++
722 lines
14 KiB
C++
#include <Arduino.h>
|
|
#include "debug.h"
|
|
|
|
#if !defined(_RPAsyncTCP_LOGLEVEL_)
|
|
#define _RPAsyncTCP_LOGLEVEL_ 1
|
|
#endif
|
|
|
|
#include "RPAsyncTCP_buffer.h"
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
AsyncTCPbuffer::AsyncTCPbuffer(AsyncClient* client)
|
|
{
|
|
if (client == NULL)
|
|
{
|
|
ATCP_LOGDEBUG("client is null!!!");
|
|
panic();
|
|
}
|
|
|
|
_client = client;
|
|
_TXbufferWrite = new (std::nothrow) cbuf(TCP_MSS);
|
|
_TXbufferRead = _TXbufferWrite;
|
|
_RXbuffer = new (std::nothrow) cbuf(100);
|
|
_RXmode = ATB_RX_MODE_FREE;
|
|
_rxSize = 0;
|
|
_rxTerminator = 0x00;
|
|
_rxReadBytesPtr = NULL;
|
|
_rxReadStringPtr = NULL;
|
|
_cbDisconnect = NULL;
|
|
|
|
_cbRX = NULL;
|
|
_cbDone = NULL;
|
|
_attachCallbacks();
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
AsyncTCPbuffer::~AsyncTCPbuffer()
|
|
{
|
|
if (_client)
|
|
{
|
|
_client->close();
|
|
}
|
|
|
|
if (_RXbuffer)
|
|
{
|
|
delete _RXbuffer;
|
|
_RXbuffer = NULL;
|
|
}
|
|
|
|
if (_TXbufferWrite)
|
|
{
|
|
// will be deleted in _TXbufferRead chain
|
|
_TXbufferWrite = NULL;
|
|
}
|
|
|
|
if (_TXbufferRead)
|
|
{
|
|
cbuf * next = _TXbufferRead->next;
|
|
delete _TXbufferRead;
|
|
|
|
while (next != NULL)
|
|
{
|
|
_TXbufferRead = next;
|
|
next = _TXbufferRead->next;
|
|
delete _TXbufferRead;
|
|
}
|
|
|
|
_TXbufferRead = NULL;
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
size_t AsyncTCPbuffer::write(String & data)
|
|
{
|
|
return write(data.c_str(), data.length());
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
size_t AsyncTCPbuffer::write(uint8_t data)
|
|
{
|
|
return write(&data, 1);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
size_t AsyncTCPbuffer::write(const char* data)
|
|
{
|
|
return write((const uint8_t *) data, strlen(data));
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
size_t AsyncTCPbuffer::write(const char *data, size_t len)
|
|
{
|
|
return write((const uint8_t *) data, len);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
write data in to buffer and try to send the data
|
|
@param data
|
|
@param len
|
|
@return
|
|
*/
|
|
size_t AsyncTCPbuffer::write(const uint8_t *data, size_t len)
|
|
{
|
|
if (_TXbufferWrite == NULL || _client == NULL || !_client->connected() || data == NULL || len == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
size_t bytesLeft = len;
|
|
|
|
while (bytesLeft)
|
|
{
|
|
size_t w = _TXbufferWrite->write((const char*) data, bytesLeft);
|
|
bytesLeft -= w;
|
|
data += w;
|
|
|
|
_sendBuffer();
|
|
|
|
// add new buffer since we have more data
|
|
if (_TXbufferWrite->full() && bytesLeft > 0)
|
|
{
|
|
/*
|
|
// to less ram!!!
|
|
if(ESP.getFreeHeap() < 4096) {
|
|
ATCP_LOGDEBUG("run out of Heap can not send all Data!");
|
|
return (len - bytesLeft);
|
|
}
|
|
*/
|
|
cbuf * next = new (std::nothrow) cbuf(TCP_MSS);
|
|
|
|
if (next == NULL)
|
|
{
|
|
ATCP_LOGDEBUG("run out of Heap!");
|
|
panic();
|
|
}
|
|
else
|
|
{
|
|
ATCP_LOGDEBUG("new cbuf");
|
|
}
|
|
|
|
// add new buffer to chain (current cbuf)
|
|
_TXbufferWrite->next = next;
|
|
|
|
// move ptr for next data
|
|
_TXbufferWrite = next;
|
|
}
|
|
}
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
wait until all data has send out
|
|
*/
|
|
void AsyncTCPbuffer::flush()
|
|
{
|
|
while (!_TXbufferWrite->empty())
|
|
{
|
|
while (connected() && !_client->canSend())
|
|
{
|
|
delay(0);
|
|
}
|
|
|
|
if (!connected())
|
|
return;
|
|
_sendBuffer();
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
void AsyncTCPbuffer::noCallback()
|
|
{
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
void AsyncTCPbuffer::readStringUntil(char terminator, String * str, AsyncTCPbufferDoneCb done)
|
|
{
|
|
if (_client == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ATCP_LOGDEBUG1("readStringUntil terminator:", terminator);
|
|
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
_cbDone = done;
|
|
_rxReadStringPtr = str;
|
|
_rxTerminator = terminator;
|
|
_rxSize = 0;
|
|
_RXmode = ATB_RX_MODE_TERMINATOR_STRING;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
/*
|
|
void AsyncTCPbuffer::readBytesUntil(char terminator, char *buffer, size_t length, AsyncTCPbufferDoneCb done)
|
|
{
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
_cbDone = done;
|
|
_rxReadBytesPtr = (uint8_t *) buffer;
|
|
_rxTerminator = terminator;
|
|
_rxSize = length;
|
|
_RXmode = ATB_RX_MODE_TERMINATOR;
|
|
_handleRxBuffer(NULL, 0);
|
|
}
|
|
|
|
void AsyncTCPbuffer::readBytesUntil(char terminator, uint8_t *buffer, size_t length, AsyncTCPbufferDoneCb done)
|
|
{
|
|
readBytesUntil(terminator, (char *) buffer, length, done);
|
|
}
|
|
*/
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
void AsyncTCPbuffer::readBytes(char *buffer, size_t length, AsyncTCPbufferDoneCb done)
|
|
{
|
|
if (_client == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ATCP_LOGDEBUG1("readBytes length:", length);
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
_cbDone = done;
|
|
_rxReadBytesPtr = (uint8_t *) buffer;
|
|
_rxSize = length;
|
|
_RXmode = ATB_RX_MODE_READ_BYTES;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
void AsyncTCPbuffer::readBytes(uint8_t *buffer, size_t length, AsyncTCPbufferDoneCb done)
|
|
{
|
|
readBytes((char *) buffer, length, done);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
void AsyncTCPbuffer::onData(AsyncTCPbufferDataCb cb)
|
|
{
|
|
if (_client == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ATCP_LOGDEBUG("onData");
|
|
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
_cbDone = NULL;
|
|
_cbRX = cb;
|
|
_RXmode = ATB_RX_MODE_FREE;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
void AsyncTCPbuffer::onDisconnect(AsyncTCPbufferDisconnectCb cb)
|
|
{
|
|
_cbDisconnect = cb;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
IPAddress AsyncTCPbuffer::remoteIP()
|
|
{
|
|
if (!_client)
|
|
{
|
|
return IPAddress(0, 0, 0, 0);
|
|
}
|
|
|
|
return _client->remoteIP();
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
uint16_t AsyncTCPbuffer::remotePort()
|
|
{
|
|
if (!_client)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
return _client->remotePort();
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
bool AsyncTCPbuffer::connected()
|
|
{
|
|
if (!_client)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return _client->connected();
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
void AsyncTCPbuffer::stop()
|
|
{
|
|
|
|
if (!_client)
|
|
{
|
|
return;
|
|
}
|
|
|
|
_client->stop();
|
|
_client = NULL;
|
|
|
|
if (_cbDone)
|
|
{
|
|
switch (_RXmode)
|
|
{
|
|
case ATB_RX_MODE_READ_BYTES:
|
|
case ATB_RX_MODE_TERMINATOR:
|
|
case ATB_RX_MODE_TERMINATOR_STRING:
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
_cbDone(false, NULL);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
void AsyncTCPbuffer::close()
|
|
{
|
|
stop();
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
attachCallbacks to AsyncClient class
|
|
*/
|
|
void AsyncTCPbuffer::_attachCallbacks()
|
|
{
|
|
if (!_client)
|
|
{
|
|
return;
|
|
}
|
|
|
|
ATCP_LOGDEBUG("attachCallbacks");
|
|
|
|
_client->onPoll([](void *obj, AsyncClient * c)
|
|
{
|
|
RPAsyncTCP_UNUSED(c);
|
|
AsyncTCPbuffer* b = ((AsyncTCPbuffer*)(obj));
|
|
|
|
if ((b->_TXbufferRead != NULL) && !b->_TXbufferRead->empty())
|
|
{
|
|
b->_sendBuffer();
|
|
}
|
|
|
|
// if(!b->_RXbuffer->empty()) {
|
|
// b->_handleRxBuffer(NULL, 0);
|
|
// }
|
|
}, this);
|
|
|
|
_client->onAck([](void *obj, AsyncClient * c, size_t len, uint32_t time)
|
|
{
|
|
RPAsyncTCP_UNUSED(c);
|
|
RPAsyncTCP_UNUSED(len);
|
|
RPAsyncTCP_UNUSED(time);
|
|
ATCP_LOGDEBUG("onAck");
|
|
((AsyncTCPbuffer*)(obj))->_sendBuffer();
|
|
}, this);
|
|
|
|
_client->onDisconnect([](void *obj, AsyncClient * c)
|
|
{
|
|
ATCP_LOGDEBUG("onDisconnect");
|
|
AsyncTCPbuffer* b = ((AsyncTCPbuffer*)(obj));
|
|
b->_client = NULL;
|
|
bool del = true;
|
|
|
|
if (b->_cbDisconnect)
|
|
{
|
|
del = b->_cbDisconnect(b);
|
|
}
|
|
|
|
delete c;
|
|
|
|
if (del)
|
|
{
|
|
delete b;
|
|
}
|
|
}, this);
|
|
|
|
_client->onData([](void *obj, AsyncClient * c, void *buf, size_t len)
|
|
{
|
|
RPAsyncTCP_UNUSED(c);
|
|
AsyncTCPbuffer* b = ((AsyncTCPbuffer*)(obj));
|
|
b->_rxData((uint8_t *)buf, len);
|
|
}, this);
|
|
|
|
_client->onTimeout([](void *obj, AsyncClient * c, uint32_t time)
|
|
{
|
|
RPAsyncTCP_UNUSED(obj);
|
|
RPAsyncTCP_UNUSED(time);
|
|
|
|
ATCP_LOGDEBUG("onTimeout");
|
|
|
|
c->close();
|
|
}, this);
|
|
|
|
ATCP_LOGDEBUG("attachCallbacks Done.");
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
send TX buffer if possible
|
|
*/
|
|
void AsyncTCPbuffer::_sendBuffer()
|
|
{
|
|
//ATCP_LOGDEBUG("_sendBuffer...");
|
|
size_t available = _TXbufferRead->available();
|
|
|
|
if (available == 0 || _client == NULL || !_client->connected() || !_client->canSend())
|
|
{
|
|
return;
|
|
}
|
|
|
|
while (connected() && (_client->space() > 0) && (_TXbufferRead->available() > 0) && _client->canSend())
|
|
{
|
|
available = _TXbufferRead->available();
|
|
|
|
if (available > _client->space())
|
|
{
|
|
available = _client->space();
|
|
}
|
|
|
|
char *out = new (std::nothrow) char[available];
|
|
|
|
if (out == NULL)
|
|
{
|
|
ATCP_LOGDEBUG("to less heap, try later.");
|
|
|
|
return;
|
|
}
|
|
|
|
// read data from buffer
|
|
_TXbufferRead->peek(out, available);
|
|
|
|
// send data
|
|
size_t send = _client->write((const char*) out, available);
|
|
|
|
if (send != available)
|
|
{
|
|
ATCP_LOGDEBUG3("_sendBuffer write failed send:", send, ", available:", available);
|
|
|
|
if (!connected())
|
|
{
|
|
ATCP_LOGDEBUG("incomplete transfer, connection lost.");
|
|
}
|
|
}
|
|
|
|
// remove really send data from buffer
|
|
_TXbufferRead->remove(send);
|
|
|
|
// if buffer is empty and there is a other buffer in chain delete the empty one
|
|
if (_TXbufferRead->available() == 0 && _TXbufferRead->next != NULL)
|
|
{
|
|
cbuf * old = _TXbufferRead;
|
|
_TXbufferRead = _TXbufferRead->next;
|
|
delete old;
|
|
|
|
ATCP_LOGDEBUG("delete cbuf");
|
|
}
|
|
|
|
delete[] out;
|
|
}
|
|
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
called on incoming data
|
|
@param buf
|
|
@param len
|
|
*/
|
|
void AsyncTCPbuffer::_rxData(uint8_t *buf, size_t len)
|
|
{
|
|
if (!_client || !_client->connected())
|
|
{
|
|
ATCP_LOGDEBUG("not connected!");
|
|
return;
|
|
}
|
|
|
|
if (!_RXbuffer)
|
|
{
|
|
ATCP_LOGDEBUG("_rxData no _RXbuffer!");
|
|
return;
|
|
}
|
|
|
|
ATCP_LOGDEBUG3("_rxData len:", len, ", RXmode:", _RXmode);
|
|
|
|
size_t handled = 0;
|
|
|
|
if (_RXmode != ATB_RX_MODE_NONE)
|
|
{
|
|
handled = _handleRxBuffer((uint8_t *) buf, len);
|
|
buf += handled;
|
|
len -= handled;
|
|
|
|
// handle as much as possible before using the buffer
|
|
if (_RXbuffer->empty())
|
|
{
|
|
while (_RXmode != ATB_RX_MODE_NONE && handled != 0 && len > 0)
|
|
{
|
|
handled = _handleRxBuffer(buf, len);
|
|
buf += handled;
|
|
len -= handled;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (len > 0)
|
|
{
|
|
|
|
if (_RXbuffer->room() < len)
|
|
{
|
|
// to less space
|
|
ATCP_LOGDEBUG("_rxData buffer full try resize");
|
|
_RXbuffer->resizeAdd((len + _RXbuffer->room()));
|
|
|
|
if (_RXbuffer->room() < len)
|
|
{
|
|
ATCP_LOGDEBUG1("_rxData buffer to full can only handle:", _RXbuffer->room());
|
|
}
|
|
}
|
|
|
|
_RXbuffer->write((const char *) (buf), len);
|
|
}
|
|
|
|
if (!_RXbuffer->empty() && _RXmode != ATB_RX_MODE_NONE)
|
|
{
|
|
// handle as much as possible data in buffer
|
|
handled = _handleRxBuffer(NULL, 0);
|
|
|
|
while (_RXmode != ATB_RX_MODE_NONE && handled != 0)
|
|
{
|
|
handled = _handleRxBuffer(NULL, 0);
|
|
}
|
|
}
|
|
|
|
// clean up ram
|
|
if (_RXbuffer->empty() && _RXbuffer->room() != 100)
|
|
{
|
|
_RXbuffer->resize(100);
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
size_t AsyncTCPbuffer::_handleRxBuffer(uint8_t *buf, size_t len)
|
|
{
|
|
if (!_client || !_client->connected() || _RXbuffer == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
ATCP_LOGDEBUG3("_handleRxBuffer len:", len, ", RXmode:", _RXmode);
|
|
|
|
size_t BufferAvailable = _RXbuffer->available();
|
|
size_t r = 0;
|
|
|
|
if (_RXmode == ATB_RX_MODE_NONE)
|
|
{
|
|
return 0;
|
|
}
|
|
else if (_RXmode == ATB_RX_MODE_FREE)
|
|
{
|
|
if (_cbRX == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (BufferAvailable > 0)
|
|
{
|
|
uint8_t * b = new (std::nothrow) uint8_t[BufferAvailable];
|
|
|
|
if (b == NULL)
|
|
{
|
|
panic(); //TODO: What action should this be ?
|
|
}
|
|
|
|
_RXbuffer->peek((char *) b, BufferAvailable);
|
|
r = _cbRX(b, BufferAvailable);
|
|
_RXbuffer->remove(r);
|
|
}
|
|
|
|
if (r == BufferAvailable && buf && (len > 0))
|
|
{
|
|
return _cbRX(buf, len);
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
}
|
|
else if (_RXmode == ATB_RX_MODE_READ_BYTES)
|
|
{
|
|
if (_rxReadBytesPtr == NULL || _cbDone == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
size_t newReadCount = 0;
|
|
|
|
if (BufferAvailable)
|
|
{
|
|
r = _RXbuffer->read((char *) _rxReadBytesPtr, _rxSize);
|
|
_rxSize -= r;
|
|
_rxReadBytesPtr += r;
|
|
}
|
|
|
|
if (_RXbuffer->empty() && (len > 0) && buf)
|
|
{
|
|
r = len;
|
|
|
|
if (r > _rxSize)
|
|
{
|
|
r = _rxSize;
|
|
}
|
|
|
|
memcpy(_rxReadBytesPtr, buf, r);
|
|
_rxReadBytesPtr += r;
|
|
_rxSize -= r;
|
|
newReadCount += r;
|
|
}
|
|
|
|
if (_rxSize == 0)
|
|
{
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
_cbDone(true, NULL);
|
|
}
|
|
|
|
// add left over bytes to Buffer
|
|
return newReadCount;
|
|
|
|
}
|
|
else if (_RXmode == ATB_RX_MODE_TERMINATOR)
|
|
{
|
|
// TODO implement read terminator non string
|
|
|
|
}
|
|
else if (_RXmode == ATB_RX_MODE_TERMINATOR_STRING)
|
|
{
|
|
if (_rxReadStringPtr == NULL || _cbDone == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
// handle Buffer
|
|
if (BufferAvailable > 0)
|
|
{
|
|
while (!_RXbuffer->empty())
|
|
{
|
|
char c = _RXbuffer->read();
|
|
|
|
if (c == _rxTerminator || c == 0x00)
|
|
{
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
_cbDone(true, _rxReadStringPtr);
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
(*_rxReadStringPtr) += c;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (_RXbuffer->empty() && (len > 0) && buf)
|
|
{
|
|
size_t newReadCount = 0;
|
|
|
|
while (newReadCount < len)
|
|
{
|
|
char c = (char) * buf;
|
|
buf++;
|
|
newReadCount++;
|
|
|
|
if (c == _rxTerminator || c == 0x00)
|
|
{
|
|
_RXmode = ATB_RX_MODE_NONE;
|
|
_cbDone(true, _rxReadStringPtr);
|
|
return newReadCount;
|
|
}
|
|
else
|
|
{
|
|
(*_rxReadStringPtr) += c;
|
|
}
|
|
}
|
|
|
|
return newReadCount;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|