56b4e8289c
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7830 a95241bf-73f2-0310-859d-f6bbb57e9c96
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
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Copyright 1999-2001, Be Incorporated. All Rights Reserved.
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This file may be used under the terms of the Be Sample Code License.
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*/
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#ifndef _CACHE_H_
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#define _CACHE_H_
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#include <OS.h>
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#define ALLOW_WRITES 1
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#define NO_WRITES 0
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int init_block_cache(int max_blocks, int flags);
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extern void shutdown_block_cache(void);
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extern void force_cache_flush(int dev, int prefer_log_blocks);
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extern int flush_blocks(int dev, off_t bnum, int nblocks);
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extern int flush_device(int dev, int warn_locked);
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extern int init_cache_for_device(int fd, off_t max_blocks);
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extern int remove_cached_device_blocks(int dev, int allow_write);
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extern void *get_block(int dev, off_t bnum, int bsize);
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extern void *get_empty_block(int dev, off_t bnum, int bsize);
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extern int release_block(int dev, off_t bnum);
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extern int mark_blocks_dirty(int dev, off_t bnum, int nblocks);
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extern int cached_read(int dev, off_t bnum, void *data, off_t num_blocks, int bsize);
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extern int cached_write(int dev, off_t bnum, const void *data,
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off_t num_blocks, int bsize);
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extern int cached_write_locked(int dev, off_t bnum, const void *data,
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off_t num_blocks, int bsize);
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extern int set_blocks_info(int dev, off_t *blocks, int nblocks,
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void (*func)(off_t bnum, size_t nblocks, void *arg),
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void *arg);
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extern size_t read_phys_blocks(int fd, off_t bnum, void *data, uint num_blocks, int bsize);
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extern size_t write_phys_blocks(int fd, off_t bnum, void *data, uint num_blocks, int bsize);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _CACHE_H_ */
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