/* public interfaces for block io routines */

#ifndef _BLOCK_H
#define _BLOCK_H

/*#define IBEX_STATS*/		/* define to get/dump block access stats */

#include <glib.h>

/* version of file format */
#define IBEX_VERSION "ibx6"

typedef guint32 nameid_t;
typedef guint32 blockid_t;

#define BLOCK_BITS (8)
#define BLOCK_SIZE (1<<BLOCK_BITS)
#define CACHE_SIZE 256		/* blocks in disk cache */

/* root block */
struct _root {
	char version[4];

	blockid_t free;		/* list of free blocks */
	blockid_t roof;		/* top of allocated space, everything below is in a free or used list */
	blockid_t tail;		/* list of 'tail' blocks */

	blockid_t words;	/* root of words index */
	blockid_t names;	/* root of names index */

	char flags;		/* state flags */

	/* makes structure fill up to 1024 bytes */
	char dummy[1024 - (sizeof(char)*5) - (sizeof(blockid_t)*5)];
};

#define IBEX_ROOT_SYNCF (1<<0)	/* file is synced */

/* basic disk structure for (data) blocks */
struct _block {
	unsigned int next:32-BLOCK_BITS;	/* next block */
	unsigned int used:BLOCK_BITS;		/* number of elements used */

	nameid_t bl_data[(BLOCK_SIZE-4)/4];	/* references */
};

/* custom list structure, for a simple/efficient cache */
struct _listnode {
	struct _listnode *next;
	struct _listnode *prev;
};
struct _list {
	struct _listnode *head;
	struct _listnode *tail;
	struct _listnode *tailpred;
};

void ibex_list_new(struct _list *v);
struct _listnode *ibex_list_addhead(struct _list *l, struct _listnode *n);
struct _listnode *ibex_list_addtail(struct _list *l, struct _listnode *n);
struct _listnode *ibex_list_remove(struct _listnode *n);

/* in-memory structure for block cache */
struct _memblock {
	struct _memblock *next;
	struct _memblock *prev;

	blockid_t block;
	int flags;

	struct _block data;
};
#define BLOCK_DIRTY (1<<0)

struct _memcache {
	struct _list nodes;
	int count;		/* nodes in cache */

	GHashTable *index;	/* blockid->memblock mapping */
	int fd;			/* file fd */

#ifdef IBEX_STATS
	GHashTable *stats;
#endif
	struct _root root;	/* root block */

	/* temporary here */
	struct _IBEXWord *words; /* word index */
};

#ifdef IBEX_STATS
struct _stat_info {
	int read;
	int write;
	int cache_hit;
	int cache_miss;
};
#endif /* IBEX_STATS */

struct _memcache *ibex_block_cache_open(const char *name, int flags, int mode);
void ibex_block_cache_close(struct _memcache *block_cache);
void ibex_block_cache_sync(struct _memcache *block_cache);
void ibex_block_cache_flush(struct _memcache *block_cache);

blockid_t ibex_block_get(struct _memcache *block_cache);
void ibex_block_free(struct _memcache *block_cache, blockid_t blockid);
void ibex_block_dirty(struct _block *block);
struct _block *ibex_block_read(struct _memcache *block_cache, blockid_t blockid);

#define block_number(x) ((x)>>BLOCK_BITS)
#define block_location(x) ((x)<<BLOCK_BITS)

#endif /* ! _BLOCK_H */
ectron4/files/y18n-3.2.2'>dependabot/npm_and_yarn/devel/electron4/files/y18n-3.2.2</option>
<option value='dependabot/npm_and_yarn/devel/electron6/files/elliptic-6.5.3'>dependabot/npm_and_yarn/devel/electron6/files/elliptic-6.5.3</option>
<option value='dependabot/npm_and_yarn/devel/electron6/files/elliptic-6.5.4'>dependabot/npm_and_yarn/devel/electron6/files/elliptic-6.5.4</option>
<option value='dependabot/npm_and_yarn/devel/electron6/files/ini-1.3.8'>dependabot/npm_and_yarn/devel/electron6/files/ini-1.3.8</option>
<option value='dependabot/npm_and_yarn/devel/electron6/files/lodash-4.17.19'>dependabot/npm_and_yarn/devel/electron6/files/lodash-4.17.19</option>
<option value='dependabot/npm_and_yarn/devel/electron6/files/lodash.merge-4.6.2'>dependabot/npm_and_yarn/devel/electron6/files/lodash.merge-4.6.2</option>
<option value='dependabot/npm_and_yarn/devel/electron6/files/node-fetch-2.6.1'>dependabot/npm_and_yarn/devel/electron6/files/node-fetch-2.6.1</option>
<option value='dependabot/npm_and_yarn/devel/electron6/files/serve-10.1.2'>dependabot/npm_and_yarn/devel/electron6/files/serve-10.1.2</option>
<option value='gnome-3.22'>gnome-3.22</option>
<option value='gnome-3.24' selected='selected'>gnome-3.24</option>
<option value='gnome-3.26'>gnome-3.26</option>
<option value='gnome-3.28'>gnome-3.28</option>
<option value='gnome-3.32'>gnome-3.32</option>
<option value='gnome-3.36'>gnome-3.36</option>
<option value='gstreamer'>gstreamer</option>
<option value='gstreamer-1.16'>gstreamer-1.16</option>
<option value='gstreamer0.10-removal'>gstreamer0.10-removal</option>
<option value='main'>main</option>
<option value='master'>master</option>
<option value='mate-1.16'>mate-1.16</option>
<option value='mate-1.18'>mate-1.18</option>
<option value='mate-1.20'>mate-1.20</option>
<option value='mate-1.22'>mate-1.22</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>FreeBSD GNOME current development ports (https://github.com/freebsd/freebsd-ports-gnome)</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/about/?h=gnome-3.24'>about</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/?h=gnome-3.24'>summary</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/refs/?h=gnome-3.24'>refs</a><a class='active' href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/dns/whoseip?h=gnome-3.24'>log</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/tree/dns/whoseip?h=gnome-3.24'>tree</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/dns/whoseip?h=gnome-3.24'>commit</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/diff/dns/whoseip?h=gnome-3.24'>diff</a><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/stats/dns/whoseip?h=gnome-3.24'>stats</a></td><td class='form'><form class='right' method='get' action='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/dns/whoseip'>
<input type='hidden' name='h' value='gnome-3.24'/><select name='qt'>
<option value='grep'>log msg</option>
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</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
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<div class='path'>path: <a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/?h=gnome-3.24'>root</a>/<a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/dns?h=gnome-3.24'>dns</a>/<a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/dns/whoseip?h=gnome-3.24'>whoseip</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th></th><th class='left'>Commit message (<a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/dns/whoseip?h=gnome-3.24&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Age</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/dns/whoseip?h=gnome-3.24&amp;id=148314483d3098c0d6a33944f1190842e671502f'>Remove ${PORTSDIR}/ from dependencies, categories d, e, f, and g.</a></td><td>mat</td><td><span title='2016-04-01 22:00:51 +0800'>2016-04-01</span></td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+2</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/dns/whoseip?h=gnome-3.24&amp;id=fce96910d8fa5a4eed7867a15f95ee514b0fdc2e'>Make it so that the default Perl is always called perl5.</a></td><td>mat</td><td><span title='2015-09-14 20:19:48 +0800'>2015-09-14</span></td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/dns/whoseip?h=gnome-3.24&amp;id=0ae61b68184f04567df902d2ba70310dbe2bcb10'>Reduce the difference with other dnstools ports: provide fallback download</a></td><td>danfe</td><td><span title='2015-08-06 17:10:56 +0800'>2015-08-06</span></td><td>2</td><td><span class='deletions'>-2</span>/<span class='insertions'>+6</span></td></tr>