GATE
C/C++ Framework
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A stream to read and write from in-memory data. More...
#include <streams.h>
Public Member Functions | |
char const * | get_data () |
Returns a pointer to the begin of the readable memory block. | |
gate_size_t | size () |
Returns the total size of readable bytes. | |
gate_result_t | reserve (gate_size_t space) |
Ensures that the given amount of space is preallocated at the end of the internal buffer. | |
gate_result_t | fill (char fillitem, gate_size_t fillsize) |
Adds a field of characters at the write-end of the internal buffer. | |
gate_size_t | discard (gate_size_t bytestodiscard) |
Removes the given amount of bytes from the read buffer at the beginning. | |
gate_size_t | discard_back (gate_size_t bytestodiscard) |
Removes the given amount of bytes at the end of the internal buffer (removes previously written bytes) | |
gate_result_t | reset () |
Clears the readable area from the stream, discards all bytes. | |
Public Member Functions inherited from gate_stream_t | |
gate_result_t | read (char *buffer, gate_size_t bufferlength, gate_size_t *returned) |
Read bytes from stream and stores them in the given buffer. | |
gate_result_t | peek (char *buffer, gate_size_t bufferlength, gate_size_t *returned) |
Tries to read bytes from the stream, but leaves them in its input buffer to be read again. | |
gate_result_t | write (char const *buffer, gate_size_t bufferlength, gate_size_t *written) |
Writes bytes from the given buffer into the stream. | |
gate_result_t | flush () |
Instructs the stream to flush its internal buffers and make current status persistent. | |
Public Member Functions inherited from gate_object_t | |
char const * | get_interface_name () |
Returns on object's interface path name. | |
void | release () |
Decrease object's reference counter, releases the object when count reaches zero. | |
int | retain () |
Increase object's reference counter. |
A stream to read and write from in-memory data.
gate_stream_t::write() appends data to the internal memory buffer at the end gate_stream_t::read() extracts data from the internal memory buffer from the beginning gate_memstream_t is a FIFO buffer. Data appended by write() are retrieved with read()
char const * get_data | ( | ) |
Returns a pointer to the begin of the readable memory block.
gate_size_t size | ( | ) |
Returns the total size of readable bytes.
gate_result_t reserve | ( | gate_size_t | space | ) |
Ensures that the given amount of space is preallocated at the end of the internal buffer.
[in] | space | Amount of bytes to be reserved (preallocated) of writing |
gate_result_t fill | ( | char | fillitem, |
gate_size_t | fillsize ) |
Adds a field of characters at the write-end of the internal buffer.
[in] | fillitem | Character to be used repeated to fill the buffer |
[in] | fillsize | Amount of characters to fill the write buffer at the end |
gate_size_t discard | ( | gate_size_t | bytestodiscard | ) |
Removes the given amount of bytes from the read buffer at the beginning.
[in] | bytestodiscard | Amount of bytes to discard |
gate_size_t discard_back | ( | gate_size_t | bytestodiscard | ) |
Removes the given amount of bytes at the end of the internal buffer (removes previously written bytes)
[in] | bytestodiscard | Amount of bytes to discard |
gate_result_t reset | ( | ) |
Clears the readable area from the stream, discards all bytes.