Changeset c91f2d1b in mainline for uspace/lib/libblock/libblock.c

Timestamp:

2009-08-27T18:31:27Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

cd688d9

Parents:

02ee6bf5

Message:

Enable the block_get() and block_put() APIs to return error.

File:

• uspace/lib/libblock/libblock.c (modified) (5 diffs)

uspace/lib/libblock/libblock.c

@@ -313 +313 @@
 /** Instantiate a block in memory and get a reference to it.
  *
+ * @param block                 Pointer to where the function will store the
+ *                              block pointer on success.
  * @param dev_handle            Device handle of the block device.
  * @param boff                  Block offset.
@@ -319 +321 @@
  *                              device.
  *
- * @return                      Block structure.
- */
-block_t *block_get(dev_handle_t dev_handle, bn_t boff, int flags)
+ * @return                      EOK on success or a negative error code.
+ */
+int block_get(block_t **block, dev_handle_t dev_handle, bn_t boff, int flags)
 {
         devcon_t *devcon;
@@ -450 +452 @@
                 fibril_mutex_unlock(&b->lock);
         }
-        return b;
+        *block = b;
+        return EOK;
 }
 
@@ -458 +461 @@
  *
  * @param block         Block of which a reference is to be released.
- */
-void block_put(block_t *block)
+ *
+ * @return              EOK on success or a negative error code.
+ */
+int block_put(block_t *block)
 {
         devcon_t *devcon = devcon_search(block->dev_handle);
@@ -546 +551 @@
         fibril_mutex_unlock(&block->lock);
         fibril_mutex_unlock(&cache->lock);
+
+        return EOK;
 }