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First draft of the new block cache API with transaction support.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9893 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2004-11-10 01:57:38 +00:00
parent 4f727c8fb6
commit 060b02824b
1 changed files with 20 additions and 0 deletions
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headers/os/drivers/fs_cache.h
+20
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@@ -9,10 +9,30 @@
#include <fs_interface.h>
typedef void (*transaction_notification_hook)(int32);
#ifdef __cplusplus
extern "C" {
#endif
/* transactions */
extern int32 cache_transaction_start(void *_cache, transaction_notification_hook hook);
extern status_t cache_transaction_sync(void *_cache, int32 id);
extern status_t cache_transaction_end(void *_cache, int32 id);
extern status_t cache_transaction_abort(void *_cache, int32 id);
/* 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 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 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);