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Merged changes from branch build_system_redesign at revision 14573.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14574 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2005-10-29 16:27:43 +00:00
parent 5412b02d50
commit 338b8dc301
1836 changed files with 114718 additions and 14057 deletions
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headers/build/os/drivers/fs_cache.h
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/* File System File and Block Caches
*
* Copyright 2004-2005, Haiku Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _FS_CACHE_H
#define _FS_CACHE_H
#include <fs_interface.h>
typedef void (*transaction_notification_hook)(int32 id, void *data);
#ifdef __cplusplus
extern "C" {
#endif
/* transactions */
extern int32 cache_start_transaction(void *_cache);
extern status_t cache_sync_transaction(void *_cache, int32 id);
extern status_t cache_end_transaction(void *_cache, int32 id, transaction_notification_hook hook, void *data);
extern status_t cache_abort_transaction(void *_cache, int32 id);
extern int32 cache_detach_sub_transaction(void *_cache, int32 id);
extern status_t cache_abort_sub_transaction(void *_cache, int32 id);
extern status_t cache_start_sub_transaction(void *_cache, int32 id);
extern status_t cache_next_block_in_transaction(void *_cache, int32 id, uint32 *_cookie,
off_t *_blockNumber, void **_data, void **_unchangedData);
/* block cache */
extern void block_cache_delete(void *_cache, bool allowWrites);
extern void *block_cache_create(int fd, off_t numBlocks, size_t blockSize);
extern status_t block_cache_sync(void *_cache);
extern status_t block_cache_make_writable(void *_cache, off_t blockNumber, int32 transaction);
extern void *block_cache_get_writable_etc(void *_cache, off_t blockNumber, off_t base,
off_t length, int32 transaction);
extern void *block_cache_get_writable(void *_cache, off_t blockNumber, int32 transaction);
extern void *block_cache_get_empty(void *_cache, off_t blockNumber, int32 transaction);
extern const void *block_cache_get_etc(void *_cache, off_t blockNumber, off_t base, off_t length);
extern const void *block_cache_get(void *_cache, off_t blockNumber);
extern status_t block_cache_set_dirty(void *_cache, off_t blockNumber, bool isDirty, int32 transaction);
extern void block_cache_put(void *_cache, off_t blockNumber);
/* file cache */
extern void *file_cache_create(mount_id mountID, vnode_id vnodeID, off_t size, int fd);
extern void file_cache_delete(void *_cacheRef);
extern status_t file_cache_set_size(void *_cacheRef, off_t size);
extern status_t file_cache_sync(void *_cache);
extern status_t file_cache_invalidate_file_map(void *_cacheRef, off_t offset, off_t size);
extern status_t file_cache_read_pages(void *_cacheRef, off_t offset,
const iovec *vecs, size_t count, size_t *_numBytes);
extern status_t file_cache_write_pages(void *_cacheRef, off_t offset,
const iovec *vecs, size_t count, size_t *_numBytes);
extern status_t file_cache_read(void *_cacheRef, off_t offset, void *bufferBase, size_t *_size);
extern status_t file_cache_write(void *_cacheRef, off_t offset, const void *buffer, size_t *_size);
#ifdef __cplusplus
}
#endif
#endif /* _FS_CACHE_H */