A client for the SmartREST protocol from Cumulocity.
Dependencies: HTTPClient SmartRest
HTTPBuffer.cpp@2:1038411466a6, 2014-01-24 (annotated)
- Committer:
- vwochnik
- Date:
- Fri Jan 24 11:39:32 2014 +0000
- Revision:
- 2:1038411466a6
- Child:
- 3:ce2f116369bd
added abstraction
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
vwochnik | 2:1038411466a6 | 1 | #include "HTTPBuffer.h" |
vwochnik | 2:1038411466a6 | 2 | #include <stdlib.h> |
vwochnik | 2:1038411466a6 | 3 | |
vwochnik | 2:1038411466a6 | 4 | HTTPBuffer::HTTPBuffer() |
vwochnik | 2:1038411466a6 | 5 | { |
vwochnik | 2:1038411466a6 | 6 | _rptr = _wptr = _buf = NULL; |
vwochnik | 2:1038411466a6 | 7 | bufferSize(HTTPBUFFER_INITIAL_SIZE); |
vwochnik | 2:1038411466a6 | 8 | } |
vwochnik | 2:1038411466a6 | 9 | |
vwochnik | 2:1038411466a6 | 10 | HTTPBuffer::~HTTPBuffer() |
vwochnik | 2:1038411466a6 | 11 | { |
vwochnik | 2:1038411466a6 | 12 | if (_buf != NULL) |
vwochnik | 2:1038411466a6 | 13 | free(_buf); |
vwochnik | 2:1038411466a6 | 14 | } |
vwochnik | 2:1038411466a6 | 15 | |
vwochnik | 2:1038411466a6 | 16 | char HTTPBuffer::read() |
vwochnik | 2:1038411466a6 | 17 | { |
vwochnik | 2:1038411466a6 | 18 | if (_rptr == _wptr) |
vwochnik | 2:1038411466a6 | 19 | return 0; |
vwochnik | 2:1038411466a6 | 20 | return *_rptr++; |
vwochnik | 2:1038411466a6 | 21 | } |
vwochnik | 2:1038411466a6 | 22 | |
vwochnik | 2:1038411466a6 | 23 | uint8_t HTTPBuffer::status() |
vwochnik | 2:1038411466a6 | 24 | { |
vwochnik | 2:1038411466a6 | 25 | if (_rptr == _wptr) |
vwochnik | 2:1038411466a6 | 26 | return DS_STATUS_CLOSED; |
vwochnik | 2:1038411466a6 | 27 | return DS_STATUS_OK; |
vwochnik | 2:1038411466a6 | 28 | } |
vwochnik | 2:1038411466a6 | 29 | |
vwochnik | 2:1038411466a6 | 30 | void HTTPBuffer::writeReset() |
vwochnik | 2:1038411466a6 | 31 | { |
vwochnik | 2:1038411466a6 | 32 | _rptr = _wptr = _buf; |
vwochnik | 2:1038411466a6 | 33 | bufferSize(HTTPBUFFER_INITIAL_SIZE); |
vwochnik | 2:1038411466a6 | 34 | } |
vwochnik | 2:1038411466a6 | 35 | |
vwochnik | 2:1038411466a6 | 36 | int HTTPBuffer::write(const char* buf, size_t len) |
vwochnik | 2:1038411466a6 | 37 | { |
vwochnik | 2:1038411466a6 | 38 | if (_wptr - _buf + len > _len) { |
vwochnik | 2:1038411466a6 | 39 | size_t newLen = _len; |
vwochnik | 2:1038411466a6 | 40 | while (_wptr - _buf + len > newLen) |
vwochnik | 2:1038411466a6 | 41 | newLen += HTTPBUFFER_INCREMENT; |
vwochnik | 2:1038411466a6 | 42 | bufferSize(newLen); |
vwochnik | 2:1038411466a6 | 43 | } |
vwochnik | 2:1038411466a6 | 44 | memcpy(_wbuf, buf, len); |
vwochnik | 2:1038411466a6 | 45 | _wbuf += len; |
vwochnik | 2:1038411466a6 | 46 | } |
vwochnik | 2:1038411466a6 | 47 | |
vwochnik | 2:1038411466a6 | 48 | void HTTPBuffer::setDataType(const char* type) |
vwochnik | 2:1038411466a6 | 49 | { |
vwochnik | 2:1038411466a6 | 50 | } |
vwochnik | 2:1038411466a6 | 51 | |
vwochnik | 2:1038411466a6 | 52 | void HTTPBuffer::setIsChunked(bool chunked) |
vwochnik | 2:1038411466a6 | 53 | { |
vwochnik | 2:1038411466a6 | 54 | } |
vwochnik | 2:1038411466a6 | 55 | |
vwochnik | 2:1038411466a6 | 56 | void HTTPBuffer::setDataLen(size_t len) |
vwochnik | 2:1038411466a6 | 57 | { |
vwochnik | 2:1038411466a6 | 58 | bufferSize(len); |
vwochnik | 2:1038411466a6 | 59 | } |
vwochnik | 2:1038411466a6 | 60 | |
vwochnik | 2:1038411466a6 | 61 | |
vwochnik | 2:1038411466a6 | 62 | void HTTPBuffer::bufferSize(size_t length) |
vwochnik | 2:1038411466a6 | 63 | { |
vwochnik | 2:1038411466a6 | 64 | if (_len == length) |
vwochnik | 2:1038411466a6 | 65 | return; |
vwochnik | 2:1038411466a6 | 66 | |
vwochnik | 2:1038411466a6 | 67 | char *buf = (char*)realloc(_buf, length); |
vwochnik | 2:1038411466a6 | 68 | if (buf == NULL) |
vwochnik | 2:1038411466a6 | 69 | return; |
vwochnik | 2:1038411466a6 | 70 | |
vwochnik | 2:1038411466a6 | 71 | // set pointers |
vwochnik | 2:1038411466a6 | 72 | _wptr = buf + (_wptr - _buf); |
vwochnik | 2:1038411466a6 | 73 | _rptr = buf + (_rptr - _buf); |
vwochnik | 2:1038411466a6 | 74 | _buf = buf; |
vwochnik | 2:1038411466a6 | 75 | |
vwochnik | 2:1038411466a6 | 76 | _len = len; |
vwochnik | 2:1038411466a6 | 77 | } |