buffer.h File Reference

#include <parserutils/errors.h>
#include <parserutils/functypes.h>

Go to the source code of this file.

Data Structures
struct	parserutils_buffer
Typedefs
typedef struct parserutils_buffer	parserutils_buffer
Functions
parserutils_error	parserutils_buffer_create (parserutils_buffer **buffer)
	Create a memory buffer.
parserutils_error	parserutils_buffer_destroy (parserutils_buffer *buffer)
	Destroy a memory buffer.
parserutils_error	parserutils_buffer_append (parserutils_buffer *buffer, const uint8_t *data, size_t len)
	Append data to a memory buffer.
parserutils_error	parserutils_buffer_insert (parserutils_buffer *buffer, size_t offset, const uint8_t *data, size_t len)
	Insert data into a memory buffer.
parserutils_error	parserutils_buffer_discard (parserutils_buffer *buffer, size_t offset, size_t len)
	Discard a section of a memory buffer.
parserutils_error	parserutils_buffer_grow (parserutils_buffer *buffer)
	Extend the amount of space allocated for a memory buffer.
parserutils_error	parserutils_buffer_randomise (parserutils_buffer *buffer)

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Typedef Documentation

typedef struct parserutils_buffer parserutils_buffer

Definition at line 25 of file buffer.h.

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Function Documentation

parserutils_error parserutils_buffer_append	(	parserutils_buffer *	buffer,
		const uint8_t *	data,
		size_t	len
	)

Append data to a memory buffer.

Parameters:

buffer	The buffer to append to
data	The data to append
len	The length, in bytes, of the data to append

Returns:

PARSERUTILS_OK on success, appropriate error otherwise.

Definition at line 72 of file buffer.c.

References parserutils_buffer::allocated, parserutils_buffer::data, len, parserutils_buffer::length, parserutils_buffer_grow(), and PARSERUTILS_OK.

Referenced by parserutils_buffer_insert(), and parserutils_inputstream_append().

parserutils_error parserutils_buffer_create

(

parserutils_buffer **

buffer

)

Create a memory buffer.

Parameters:

buffer

Pointer to location to receive memory buffer

Returns:

PARSERUTILS_OK on success, PARSERUTILS_BADPARM on bad parameters, PARSERUTILS_NOMEM on memory exhausion

Definition at line 22 of file buffer.c.

References parserutils_buffer::allocated, parserutils_buffer::data, DEFAULT_SIZE, parserutils_buffer::length, PARSERUTILS_BADPARM, PARSERUTILS_NOMEM, and PARSERUTILS_OK.

Referenced by parserutils_inputstream_create().

parserutils_error parserutils_buffer_destroy

(

parserutils_buffer *

buffer

)

Destroy a memory buffer.

Parameters:

buffer

The buffer to destroy

Returns:

PARSERUTILS_OK on success, appropriate error otherwise

Definition at line 53 of file buffer.c.

References parserutils_buffer::data, PARSERUTILS_BADPARM, and PARSERUTILS_OK.

Referenced by parserutils_inputstream_create(), and parserutils_inputstream_destroy().

parserutils_error parserutils_buffer_discard	(	parserutils_buffer *	buffer,
		size_t	offset,
		size_t	len
	)

Discard a section of a memory buffer.

Parameters:

buffer	The buffer to discard data from
offset	The offset into the buffer of the start of the section
len	The number of bytes to discard

Returns:

PARSERUTILS_OK on success, appropriate error otherwise.

Definition at line 130 of file buffer.c.

References parserutils_buffer::data, len, parserutils_buffer::length, PARSERUTILS_BADPARM, and PARSERUTILS_OK.

Referenced by parserutils_inputstream_refill_buffer(), and parserutils_inputstream_strip_bom().

parserutils_error parserutils_buffer_grow

(

parserutils_buffer *

buffer

)

Extend the amount of space allocated for a memory buffer.

Parameters:

buffer

The buffer to extend

Returns:

PARSERUTILS_OK on success, appropriate error otherwise.

Definition at line 150 of file buffer.c.

References parserutils_buffer::allocated, parserutils_buffer::data, PARSERUTILS_NOMEM, and PARSERUTILS_OK.

Referenced by parserutils_buffer_append(), parserutils_buffer_insert(), and parserutils_inputstream_refill_buffer().

parserutils_error parserutils_buffer_insert	(	parserutils_buffer *	buffer,
		size_t	offset,
		const uint8_t *	data,
		size_t	len
	)

Insert data into a memory buffer.

Parameters:

buffer	The buffer to insert into
offset	The offset into the buffer to insert at
data	The data to insert
len	The length, in bytes, of the data to insert

Returns:

PARSERUTILS_OK on success, appropriate error otherwise

Definition at line 97 of file buffer.c.

References parserutils_buffer::allocated, parserutils_buffer::data, len, parserutils_buffer::length, PARSERUTILS_BADPARM, parserutils_buffer_append(), parserutils_buffer_grow(), and PARSERUTILS_OK.

Referenced by parserutils_inputstream_insert().

parserutils_error parserutils_buffer_randomise

(

parserutils_buffer *

buffer

)

Definition at line 162 of file buffer.c.

References parserutils_buffer::allocated, parserutils_buffer::data, parserutils_buffer::length, PARSERUTILS_BADPARM, PARSERUTILS_NOMEM, and PARSERUTILS_OK.

Referenced by parserutils_inputstream_peek().