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#ifndef LIBBLOCK_LIBBLOCK_H_
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#ifndef LIBBLOCK_LIBBLOCK_H_
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#define LIBBLOCK_LIBBLOCK_H_
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#define LIBBLOCK_LIBBLOCK_H_
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#include <stdint.h>
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#include <stdint.h>
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#include "../../srv/vfs/vfs.h"
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#include "../../srv/vfs/vfs.h"
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#include <futex.h>
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#include <rwlock.h>
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#include <fibril_sync.h>
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#include <adt/hash_table.h>
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#include <adt/hash_table.h>
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#include <adt/list.h>
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#include <adt/list.h>
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/*
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/*
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 * Flags that can be used with block_get().
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 * Flags that can be used with block_get().
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#define BLOCK_FLAGS_NOREAD  1
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#define BLOCK_FLAGS_NOREAD  1
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typedef unsigned bn_t;  /**< Block number type. */
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typedef unsigned bn_t;  /**< Block number type. */
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typedef struct block {
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typedef struct block {
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    /** Futex protecting the reference count. */
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    /** Mutex protecting the reference count. */
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    futex_t lock;
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    fibril_mutex_t lock;
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    /** Number of references to the block_t structure. */
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    /** Number of references to the block_t structure. */
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    unsigned refcnt;
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    unsigned refcnt;
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    /** If true, the block needs to be written back to the block device. */
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    /** If true, the block needs to be written back to the block device. */
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    bool dirty;
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    bool dirty;
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    /** Readers / Writer lock protecting the contents of the block. */
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    /** Readers / Writer lock protecting the contents of the block. */
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    rwlock_t contents_lock;
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    fibril_rwlock_t contents_lock;
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    /** Handle of the device where the block resides. */
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    /** Handle of the device where the block resides. */
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    dev_handle_t dev_handle;
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    dev_handle_t dev_handle;
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    /** Block offset on the block device. Counted in 'size'-byte blocks. */
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    /** Block offset on the block device. Counted in 'size'-byte blocks. */
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    bn_t boff;
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    bn_t boff;
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    /** Size of the block. */
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    /** Size of the block. */