| 39,10 → 39,9 |
|---|
| |
| #include <stdint.h> |
| #include "../../srv/vfs/vfs.h" |
| #include <futex.h> |
| #include <rwlock.h> |
| #include <libadt/hash_table.h> |
| #include <libadt/list.h> |
| #include <fibril_sync.h> |
| #include <adt/hash_table.h> |
| #include <adt/list.h> |
| |
| /* |
| * Flags that can be used with block_get(). |
| 63,14 → 62,14 |
|---|
| typedef unsigned bn_t; /**< Block number type. */ |
| |
| typedef struct block { |
| /** Futex protecting the reference count. */ |
| futex_t lock; |
| /** Mutex protecting the reference count. */ |
| fibril_mutex_t lock; |
| /** Number of references to the block_t structure. */ |
| unsigned refcnt; |
| /** If true, the block needs to be written back to the block device. */ |
| bool dirty; |
| /** Readers / Writer lock protecting the contents of the block. */ |
| rwlock_t contents_lock; |
| fibril_rwlock_t contents_lock; |
| /** Handle of the device where the block resides. */ |
| dev_handle_t dev_handle; |
| /** Block offset on the block device. Counted in 'size'-byte blocks. */ |
| 85,6 → 84,14 |
|---|
| void *data; |
| } block_t; |
| |
| /** Caching mode */ |
| enum cache_mode { |
| /** Write-Through */ |
| CACHE_MODE_WT, |
| /** Write-Back */ |
| CACHE_MODE_WB |
| }; |
| |
| extern int block_init(dev_handle_t, size_t); |
| extern void block_fini(dev_handle_t); |
| |
| 91,12 → 98,13 |
|---|
| extern int block_bb_read(dev_handle_t, off_t, size_t); |
| extern void *block_bb_get(dev_handle_t); |
| |
| extern int block_cache_init(dev_handle_t, size_t, unsigned); |
| extern int block_cache_init(dev_handle_t, size_t, unsigned, enum cache_mode); |
| |
| extern block_t *block_get(dev_handle_t, bn_t, int flags); |
| extern void block_put(block_t *); |
| |
| extern int block_read(int, off_t *, size_t *, off_t *, void *, size_t, size_t); |
| extern int block_read(dev_handle_t, off_t *, size_t *, off_t *, void *, size_t, |
| size_t); |
| |
| #endif |
| |