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HTTP Client move buffer (1460 Byte) from stack to heap.
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@Links2004
Links2004 committed Dec 15, 2015
1 parent 3940b35 commit b8769bf
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Showing 3 changed files with 60 additions and 44 deletions.
1 change: 0 additions & 1 deletion libraries/ESP8266HTTPClient/examples/ReuseConnection/ReuseConnection.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,6 @@ void loop() {
}

http.end();

}

delay(1000);
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99 changes: 56 additions & 43 deletions libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,6 @@

#include "ESP8266HTTPClient.h"


/**
* constractor
*/
Expand Down Expand Up @@ -117,7 +116,7 @@ void HTTPClient::begin(String url, String httpsFingerprint) {
if(index >= 0) {
// auth info
String auth = host.substring(0, index);
host.remove(0, index +1); // remove auth part including @
host.remove(0, index + 1); // remove auth part including @
_base64Authorization = base64::encode(auth);
}

Expand Down Expand Up @@ -336,7 +335,7 @@ int HTTPClient::sendRequest(const char * type, Stream * stream, size_t size) {
}

// create buffer for read
uint8_t buff[1460] = { 0 };
uint8_t * buff = (uint8_t *) malloc(HTTP_TCP_BUFFER_SIZE);

int len = size;
int bytesWritten = 0;
Expand All @@ -345,34 +344,40 @@ int HTTPClient::sendRequest(const char * type, Stream * stream, size_t size) {
len = -1;
}

// read all data from stream and send it to server
while(connected() && stream->available() && (len > 0 || len == -1)) {
if(buff) {
// read all data from stream and send it to server
while(connected() && stream->available() && (len > 0 || len == -1)) {

// get available data size
size_t s = stream->available();

// get available data size
size_t s = stream->available();
if(s) {
int c = stream->readBytes(buff, ((s > HTTP_TCP_BUFFER_SIZE) ? HTTP_TCP_BUFFER_SIZE : s));

if(s) {
int c = stream->readBytes(buff, ((s > sizeof(buff)) ? sizeof(buff) : s));
// write it to Stream
bytesWritten += _tcp->write((const uint8_t *) buff, c);

// write it to Stream
bytesWritten += _tcp->write((const uint8_t *)buff, c);
if(len > 0) {
len -= c;
}

if(len > 0) {
len -= c;
delay(0);
} else {
delay(1);
}
}

delay(0);
if(size && (int) size != bytesWritten) {
DEBUG_HTTPCLIENT("[HTTP-Client][sendRequest] Stream payload bytesWritten %d and size %d mismatch!.\n", bytesWritten, _size); DEBUG_HTTPCLIENT("[HTTP-Client][sendRequest] ERROR SEND PAYLOAD FAILED!");
free(buff);
return HTTPC_ERROR_SEND_PAYLOAD_FAILED;
} else {
delay(1);
DEBUG_HTTPCLIENT("[HTTP-Client][sendRequest] Stream payload written: %d\n", bytesWritten);
}
}

if(size && (int)size != bytesWritten) {
DEBUG_HTTPCLIENT("[HTTP-Client][sendRequest] Stream payload bytesWritten %d and size %d mismatch!.\n", bytesWritten, _size);
DEBUG_HTTPCLIENT("[HTTP-Client][sendRequest] ERROR SEND PAYLOAD FAILED!");
return HTTPC_ERROR_SEND_PAYLOAD_FAILED;
free(buff);
} else {
DEBUG_HTTPCLIENT("[HTTP-Client][sendRequest] Stream payload written: %d\n", bytesWritten);
DEBUG_HTTPCLIENT("[HTTP-Client][writeToStream] too less ram! need " HTTP_TCP_BUFFER_SIZE);
return HTTPC_ERROR_TOO_LESS_RAM;
}

// handle Server Response (Header)
Expand Down Expand Up @@ -434,37 +439,44 @@ int HTTPClient::writeToStream(Stream * stream) {
int len = _size;
int bytesWritten = 0;


// create buffer for read
uint8_t buff[1460] = { 0 };
uint8_t * buff = (uint8_t *) malloc(HTTP_TCP_BUFFER_SIZE);

// read all data from server
while(connected() && (len > 0 || len == -1)) {
if(buff) {
// read all data from server
while(connected() && (len > 0 || len == -1)) {

// get available data size
size_t size = _tcp->available();
// get available data size
size_t size = _tcp->available();

if(size) {
int c = _tcp->readBytes(buff, ((size > sizeof(buff)) ? sizeof(buff) : size));
if(size) {
int c = _tcp->readBytes(buff, ((size > HTTP_TCP_BUFFER_SIZE) ? HTTP_TCP_BUFFER_SIZE : size));

// write it to Stream
bytesWritten += stream->write(buff, c);
// write it to Stream
bytesWritten += stream->write(buff, c);

if(len > 0) {
len -= c;
}
if(len > 0) {
len -= c;
}

delay(0);
} else {
delay(1);
delay(0);
} else {
delay(1);
}
}
}

DEBUG_HTTPCLIENT("[HTTP-Client][writeToStream] connection closed or file end (written: %d).\n", bytesWritten);
free(buff);

if(_size && _size != bytesWritten) {
DEBUG_HTTPCLIENT("[HTTP-Client][writeToStream] bytesWritten %d and size %d mismatch!.\n", bytesWritten, _size);
}
DEBUG_HTTPCLIENT("[HTTP-Client][writeToStream] connection closed or file end (written: %d).\n", bytesWritten);

if(_size && _size != bytesWritten) {
DEBUG_HTTPCLIENT("[HTTP-Client][writeToStream] bytesWritten %d and size %d mismatch!.\n", bytesWritten, _size);
}

} else {
DEBUG_HTTPCLIENT("[HTTP-Client][writeToStream] too less ram! need " HTTP_TCP_BUFFER_SIZE);
}
end();
return bytesWritten;
}
Expand Down Expand Up @@ -509,12 +521,13 @@ String HTTPClient::errorToString(int error) {
return String("no stream");
case HTTPC_ERROR_NO_HTTP_SERVER:
return String("no HTTP server");
case HTTPC_ERROR_TOO_LESS_RAM:
return String("too less ram");
default:
return String();
}
}


/**
* adds Header to the request
* @param name
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4 changes: 4 additions & 0 deletions libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,10 @@
#define HTTPC_ERROR_CONNECTION_LOST (-5)
#define HTTPC_ERROR_NO_STREAM (-6)
#define HTTPC_ERROR_NO_HTTP_SERVER (-7)
#define HTTPC_ERROR_TOO_LESS_RAM (-8)

/// size for the stream handling
#define HTTP_TCP_BUFFER_SIZE (1460)

/// HTTP codes see RFC7231
typedef enum {
Expand Down

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