return b->priv.vt->readDirect(b, b->priv.blk_start + index, buf, offset, size);
}
+INLINE int kblock_writeBlock(struct KBlock *b, block_idx_t index, const void *buf)
+{
+ KB_ASSERT_METHOD(b, writeBlock);
+ ASSERT(index < b->blk_cnt);
+ return b->priv.vt->writeBlock(b, b->priv.blk_start + index, buf);
+}
+
INLINE size_t kblock_readBuf(struct KBlock *b, void *buf, size_t offset, size_t size)
{
KB_ASSERT_METHOD(b, readBuf);
ASSERT(offset + size <= b->blk_size);
LOG_INFO("blk_idx %d, offset %d, size %d\n", idx, offset, size);
- if (idx == b->priv.curr_blk)
+ if (kblock_buffered(b) && idx == b->priv.curr_blk)
return kblock_readBuf(b, buf, offset, size);
else
return kblock_readDirect(b, idx, buf, offset, size);
ASSERT(offset + size <= b->blk_size);
LOG_INFO("blk_idx %d, offset %d, size %d\n", idx, offset, size);
+
+ if (kblock_buffered(b))
+ {
+ if (!kblock_loadPage(b, idx))
+ return 0;
- if (!kblock_loadPage(b, idx))
- return 0;
-
- kblock_setDirty(b, true);
- return kblock_writeBuf(b, buf, offset, size);
+ kblock_setDirty(b, true);
+ return kblock_writeBuf(b, buf, offset, size);
+ }
+ else
+ {
+ ASSERT(offset == 0);
+ ASSERT(size == b->blk_size);
+ return (kblock_writeBlock(b, idx, buf) == 0) ? size : 0;
+ }
}
int kblock_copy(struct KBlock *b, block_idx_t idx1, block_idx_t idx2)
ASSERT(b);
ASSERT(idx1 < b->blk_cnt);
ASSERT(idx2 < b->blk_cnt);
+ ASSERT(kblock_buffered(b));
if (!kblock_loadPage(b, idx1))
return EOF;
return 0;
}
-int kblock_swWriteBlock(struct KBlock *b, block_idx_t index, const void *buf)
-{
- return (kblock_write(b, index, buf, 0, b->blk_size) == b->blk_size) ? 0 : EOF;
-}
-
-int kblock_swReadBlock(struct KBlock *b, block_idx_t index, void *buf)
-{
- return (kblock_read(b, index, buf, 0, b->blk_size) == b->blk_size) ? 0 : EOF;
-}
-
int kblock_swLoad(struct KBlock *b, block_idx_t index)
{
- return kblock_readBlock(b, index, b->priv.buf);
+ return (kblock_readDirect(b, index, b->priv.buf, 0, b->blk_size) == b->blk_size) ? 0 : EOF;
}
int kblock_swStore(struct KBlock *b, block_idx_t index)
memcpy((uint8_t *)b->priv.buf + offset, buf, size);
return size;
}
-
-size_t kblock_swReadDirect(struct KBlock *b, block_idx_t index, void *buf, size_t offset, size_t size)
-{
- ASSERT(buf);
- ASSERT(index < b->blk_cnt);
-
- if (!kblock_loadPage(b, index))
- return 0;
-
- return kblock_swReadBuf(b, buf, offset, size);
-}
-
* \{
*/
typedef size_t (* kblock_read_direct_t) (struct KBlock *b, block_idx_t index, void *buf, size_t offset, size_t size);
+typedef int (* kblock_write_block_t) (struct KBlock *b, block_idx_t index, const void *buf);
+
typedef size_t (* kblock_read_t) (struct KBlock *b, void *buf, size_t offset, size_t size);
typedef size_t (* kblock_write_t) (struct KBlock *b, const void *buf, size_t offset, size_t size);
typedef int (* kblock_load_t) (struct KBlock *b, block_idx_t index);
typedef int (* kblock_store_t) (struct KBlock *b, block_idx_t index);
-typedef int (* kblock_write_block_t) (struct KBlock *b, block_idx_t index, const void *buf);
-typedef int (* kblock_read_block_t) (struct KBlock *b, block_idx_t index, void *buf);
-
typedef int (* kblock_error_t) (struct KBlock *b);
typedef int (* kblock_clearerr_t) (struct KBlock *b);
typedef int (* kblock_close_t) (struct KBlock *b);
typedef struct KBlockVTable
{
kblock_read_direct_t readDirect;
-
+ kblock_write_block_t writeBlock;
+
kblock_read_t readBuf;
kblock_write_t writeBuf;
kblock_load_t load;
kblock_store_t store;
-
- kblock_read_block_t readBlock;
- kblock_write_block_t writeBlock;
-
+
kblock_error_t error; ///< \sa kblock_error()
kblock_clearerr_t clearerr; ///< \sa kblock_clearerr()
{
KBlockPriv priv; ///< Interface private data, do not use directly.
- /* Public access members/methods */
+ /* Public access members */
size_t blk_size; ///< Block size.
block_idx_t blk_cnt; ///< Number of blocks available in the device.
} KBlock;
return b->priv.vt->close(b);
}
-INLINE int kblock_writeBlock(struct KBlock *b, block_idx_t index, const void *buf)
-{
- KB_ASSERT_METHOD(b, writeBlock);
- ASSERT(index < b->blk_cnt);
- return b->priv.vt->writeBlock(b, b->priv.blk_start + index, buf);
-}
-
-INLINE int kblock_readBlock(struct KBlock *b, block_idx_t index, void *buf)
-{
- KB_ASSERT_METHOD(b, readDirect);
- ASSERT(index < b->blk_cnt);
- return b->priv.vt->readBlock(b, b->priv.blk_start + index, buf);
-}
-
INLINE bool kblock_cacheDirty(struct KBlock *b)
{
ASSERT(b);
return (b->priv.flags & KB_BUFFERED);
}
-
size_t kblock_read(struct KBlock *b, block_idx_t idx, void *buf, size_t offset, size_t size);
-int kblock_flush(struct KBlock *b);
-
size_t kblock_write(struct KBlock *b, block_idx_t idx, const void *buf, size_t offset, size_t size);
-int kblock_copy(struct KBlock *b, block_idx_t idx1, block_idx_t idx2);
-
+int kblock_flush(struct KBlock *b);
-int kblock_swWriteBlock(struct KBlock *b, block_idx_t index, const void *buf);
-int kblock_swReadBlock(struct KBlock *b, block_idx_t index, void *buf);
+int kblock_copy(struct KBlock *b, block_idx_t idx1, block_idx_t idx2);
-size_t kblock_swReadDirect(struct KBlock *b, block_idx_t index, void *buf, size_t offset, size_t size);
int kblock_swLoad(struct KBlock *b, block_idx_t index);
int kblock_swStore(struct KBlock *b, block_idx_t index);
size_t kblock_swReadBuf(struct KBlock *b, void *buf, size_t offset, size_t size);