[dump.git] / common / transformation_null.c

#include <stdio.h>
#include <config.h>

#include "transformation.h"

/*
 * Initialize
 */
static int
null_initialize(Transformation *xform, int enc)
{
	return 0;
}

/*
 * Shut down.
 */
static int
null_shutdown(Transformation *xform)
{
	return 0;
}

/*
 * Handle fork.
 */
static int
null_startNewTape(Transformation *xform, struct tapebuf *tpbin,
	unsigned long *destlen)
{
	return 0;
}

/*
 * Start slave process.
 */
static int
null_startDiskIOProcess(Transformation *xform)
{
	return 0;
}

/*
 * End slave process.
 */
static int
null_endDiskIOProcess(Transformation *xform)
{
	return 0;
}

/*
 * Compress a buffer.
 */
static int
null_compress(Transformation *xform, struct tapebuf *tpbin, unsigned long *destlen,
		const char *src, int srclen)
{
	memcpy(tpbin->buf, src, srclen);
	*destlen = srclen;

	return 1;
}

/*
 * Decompress a buffer.
 */
static int
null_decompress(Transformation *xform, struct tapebuf *tpbin, unsigned long *destlen,
		const char *src, int srclen, char **reason)
{
	memcpy(tpbin->buf, src, srclen);
	*destlen = srclen;

	return 1;
}

/*
 *
 */
Transformation transformation_null =
{
	0,
	NULL,
	"null",
	0,
	&null_initialize,
	&null_shutdown,
	&null_startNewTape,
	&null_startDiskIOProcess,
	&null_endDiskIOProcess,
	&null_compress,
	&null_decompress
};
Commit	Line	Data
e3956dfb SP	1	#include <stdio.h>
	2	#include <config.h>
	3
	4	#include "transformation.h"
	5
	6	/*
	7	* Initialize
	8	*/
	9	static int
	10	null_initialize(Transformation *xform, int enc)
	11	{
	12	return 0;
	13	}
	14
	15	/*
	16	* Shut down.
	17	*/
	18	static int
	19	null_shutdown(Transformation *xform)
	20	{
	21	return 0;
	22	}
	23
	24	/*
	25	* Handle fork.
	26	*/
	27	static int
	28	null_startNewTape(Transformation xform, struct tapebuf tpbin,
	29	unsigned long *destlen)
	30	{
	31	return 0;
	32	}
	33
	34	/*
	35	* Start slave process.
	36	*/
	37	static int
	38	null_startDiskIOProcess(Transformation *xform)
	39	{
	40	return 0;
	41	}
	42
	43	/*
	44	* End slave process.
	45	*/
	46	static int
	47	null_endDiskIOProcess(Transformation *xform)
	48	{
	49	return 0;
	50	}
	51
	52	/*
	53	* Compress a buffer.
	54	*/
	55	static int
	56	null_compress(Transformation xform, struct tapebuf tpbin, unsigned long *destlen,
	57	const char *src, int srclen)
	58	{
	59	memcpy(tpbin->buf, src, srclen);
	60	*destlen = srclen;
	61
	62	return 1;
	63	}
	64
65	/*
66	* Decompress a buffer.
67	*/
68	static int
69	null_decompress(Transformation xform, struct tapebuf tpbin, unsigned long *destlen,
70	const char src, int srclen, char *reason)
71	{
72	memcpy(tpbin->buf, src, srclen);
73	*destlen = srclen;
74
75	return 1;
76	}
77
78	/*
79	*
80	*/
81	Transformation transformation_null =
82	{
83	0,
84	NULL,
85	"null",
86	0,
87	&null_initialize,
88	&null_shutdown,
89	&null_startNewTape,
90	&null_startDiskIOProcess,
91	&null_endDiskIOProcess,
92	&null_compress,
93	&null_decompress
94	};