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Name	Size	Permission	Date
bmp.h	2.39 KB	-rw-rw-r--	2022-10-31 11:36
gd.c	72.21 KB	-rw-rw-r--	2022-10-31 11:36
gd.h	33.01 KB	-rw-rw-r--	2022-10-31 11:36
gd2copypal.c	1.32 KB	-rw-rw-r--	2022-10-31 11:36
gd2time.c	1.2 KB	-rw-rw-r--	2022-10-31 11:36
gd2topng.c	1.04 KB	-rw-rw-r--	2022-10-31 11:36
gd_bmp.c	25.8 KB	-rw-rw-r--	2022-10-31 11:36
gd_color_match.c	1.42 KB	-rw-rw-r--	2022-10-31 11:36
gd_crop.c	7.68 KB	-rw-rw-r--	2022-10-31 11:36
gd_errors.h	673 B	-rw-rw-r--	2022-10-31 11:36
gd_filter.c	12.52 KB	-rw-rw-r--	2022-10-31 11:36
gd_gd.c	5.2 KB	-rw-rw-r--	2022-10-31 11:36
gd_gd2.c	19.53 KB	-rw-rw-r--	2022-10-31 11:36
gd_gif_in.c	13.9 KB	-rw-rw-r--	2022-10-31 11:36
gd_gif_out.c	20.75 KB	-rw-rw-r--	2022-10-31 11:36
gd_intern.h	261 B	-rw-rw-r--	2022-10-31 11:36
gd_interpolation.c	69.57 KB	-rw-rw-r--	2022-10-31 11:36
gd_io.c	3.39 KB	-rw-rw-r--	2022-10-31 11:36
gd_io.h	1.05 KB	-rw-rw-r--	2022-10-31 11:36
gd_io_dp.c	6.96 KB	-rw-rw-r--	2022-10-31 11:36
gd_io_file.c	2.31 KB	-rw-rw-r--	2022-10-31 11:36
gd_io_ss.c	2.66 KB	-rw-rw-r--	2022-10-31 11:36
gd_jpeg.c	26.3 KB	-rw-rw-r--	2022-10-31 11:36
gd_matrix.c	7.77 KB	-rw-rw-r--	2022-10-31 11:36
gd_pixelate.c	1.33 KB	-rw-rw-r--	2022-10-31 11:36
gd_png.c	22.61 KB	-rw-rw-r--	2022-10-31 11:36
gd_rotate.c	7.97 KB	-rw-rw-r--	2022-10-31 11:36
gd_security.c	662 B	-rw-rw-r--	2022-10-31 11:36
gd_ss.c	1.07 KB	-rw-rw-r--	2022-10-31 11:36
gd_tga.c	8.92 KB	-rw-rw-r--	2022-10-31 11:36
gd_tga.h	1.66 KB	-rw-rw-r--	2022-10-31 11:36
gd_topal.c	51.71 KB	-rw-rw-r--	2022-10-31 11:36
gd_transform.c	1.27 KB	-rw-rw-r--	2022-10-31 11:36
gd_wbmp.c	5.48 KB	-rw-rw-r--	2022-10-31 11:36
gd_webp.c	4.03 KB	-rw-rw-r--	2022-10-31 11:36
gd_xbm.c	5.27 KB	-rw-rw-r--	2022-10-31 11:36
gdcache.c	4.99 KB	-rw-rw-r--	2022-10-31 11:36
gdcache.h	2.68 KB	-rw-rw-r--	2022-10-31 11:36
gddemo.c	3.18 KB	-rw-rw-r--	2022-10-31 11:36
gdfontg.c	113.25 KB	-rw-rw-r--	2022-10-31 11:36
gdfontg.h	529 B	-rw-rw-r--	2022-10-31 11:36
gdfontl.c	108.5 KB	-rw-rw-r--	2022-10-31 11:36
gdfontl.h	527 B	-rw-rw-r--	2022-10-31 11:36
gdfontmb.c	79.24 KB	-rw-rw-r--	2022-10-31 11:36
gdfontmb.h	495 B	-rw-rw-r--	2022-10-31 11:36
gdfonts.c	69.46 KB	-rw-rw-r--	2022-10-31 11:36
gdfonts.h	491 B	-rw-rw-r--	2022-10-31 11:36
gdfontt.c	38.49 KB	-rw-rw-r--	2022-10-31 11:36
gdfontt.h	522 B	-rw-rw-r--	2022-10-31 11:36
gdft.c	32.75 KB	-rw-rw-r--	2022-10-31 11:36
gdhelpers.c	1.17 KB	-rw-rw-r--	2022-10-31 11:36
gdhelpers.h	1.54 KB	-rw-rw-r--	2022-10-31 11:36
gdkanji.c	12.01 KB	-rw-rw-r--	2022-10-31 11:36
gdparttopng.c	1.26 KB	-rw-rw-r--	2022-10-31 11:36
gdtables.c	5.45 KB	-rw-rw-r--	2022-10-31 11:36
gdtest.c	9.11 KB	-rw-rw-r--	2022-10-31 11:36
gdtestft.c	2.76 KB	-rw-rw-r--	2022-10-31 11:36
gdtopng.c	965 B	-rw-rw-r--	2022-10-31 11:36
gdxpm.c	3.21 KB	-rw-rw-r--	2022-10-31 11:36
jisx0208.h	69.68 KB	-rw-rw-r--	2022-10-31 11:36
pngtogd.c	967 B	-rw-rw-r--	2022-10-31 11:36
pngtogd2.c	1.17 KB	-rw-rw-r--	2022-10-31 11:36
testac.c	4.11 KB	-rw-rw-r--	2022-10-31 11:36
wbmp.c	6.79 KB	-rw-rw-r--	2022-10-31 11:36
wbmp.h	1.25 KB	-rw-rw-r--	2022-10-31 11:36
webpng.c	6.32 KB	-rw-rw-r--	2022-10-31 11:36

Rename

/*
 * gdcache.h
 *
 * Caches of pointers to user structs in which the least-recently-used
 * element is replaced in the event of a cache miss after the cache has
 * reached a given size.
 *
 * John Ellson  (ellson@graphviz.org)  Oct 31, 1997
 *
 * Test this with:
 *		 gcc -o gdcache -g -Wall -DTEST gdcache.c
 *
 * The cache is implemented by a singly-linked list of elements
 * each containing a pointer to a user struct that is being managed by
 * the cache.
 *
 * The head structure has a pointer to the most-recently-used
 * element, and elements are moved to this position in the list each
 * time they are used.  The head also contains pointers to three
 * user defined functions:
 *		- a function to test if a cached userdata matches some keydata
 *		- a function to provide a new userdata struct to the cache
 *          if there has been a cache miss.
 *		- a function to release a userdata struct when it is
 *          no longer being managed by the cache
 *
 * In the event of a cache miss the cache is allowed to grow up to
 * a specified maximum size.  After the maximum size is reached then
 * the least-recently-used element is discarded to make room for the
 * new.  The most-recently-returned value is always left at the
 * beginning of the list after retrieval.
 *
 * In the current implementation the cache is traversed by a linear
 * search from most-recent to least-recent.  This linear search
 * probably limits the usefulness of this implementation to cache
 * sizes of a few tens of elements.
 */

/*********************************************************/
/* header                                                */
/*********************************************************/

#include <stdlib.h>
#if (!defined(__OpenBSD__)) && HAVE_MALLOC_H
 #include <malloc.h>
#endif
#ifndef NULL
#define NULL (void *)0
#endif

/* user defined function templates */
typedef int (*gdCacheTestFn_t)(void *userdata, void *keydata);
typedef void *(*gdCacheFetchFn_t)(char **error, void *keydata);
typedef void (*gdCacheReleaseFn_t)(void *userdata);

/* element structure */
typedef struct gdCache_element_s gdCache_element_t;
struct gdCache_element_s {
	gdCache_element_t	*next;
	void			*userdata;
};

/* head structure */
typedef struct gdCache_head_s gdCache_head_t;
struct gdCache_head_s {
	gdCache_element_t	*mru;
	int					size;
	char				*error;
	gdCacheTestFn_t		gdCacheTest;
	gdCacheFetchFn_t	gdCacheFetch;
	gdCacheReleaseFn_t	gdCacheRelease;
};

/* function templates */
gdCache_head_t *
gdCacheCreate(
	int					size,
	gdCacheTestFn_t		gdCacheTest,
	gdCacheFetchFn_t	gdCacheFetch,
	gdCacheReleaseFn_t	gdCacheRelease );

void
gdCacheDelete( gdCache_head_t *head );

void *
gdCacheGet( gdCache_head_t *head, void *keydata );