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Rev 2089 Rev 2106
Line 46... Line 46...
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    RWLOCK_WRITER
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    RWLOCK_WRITER
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} rwlock_type_t;
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} rwlock_type_t;
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typedef struct {
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typedef struct {
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    SPINLOCK_DECLARE(lock);
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    SPINLOCK_DECLARE(lock);
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    /**
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    mutex_t exclusive;  /**< Mutex for writers, readers can bypass it if readers_in is positive. */
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     * Mutex for writers, readers can bypass it if readers_in is positive.
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     */
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    mutex_t exclusive;
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    count_t readers_in; /**< Number of readers in critical section. */
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    /** Number of readers in critical section. */
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    count_t readers_in;
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} rwlock_t;
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} rwlock_t;
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#define rwlock_write_lock(rwl) \
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#define rwlock_write_lock(rwl) \
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    _rwlock_write_lock_timeout((rwl),SYNCH_NO_TIMEOUT,SYNCH_FLAGS_NONE)
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    _rwlock_write_lock_timeout((rwl), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)
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#define rwlock_read_lock(rwl) \
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#define rwlock_read_lock(rwl) \
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    _rwlock_read_lock_timeout((rwl),SYNCH_NO_TIMEOUT,SYNCH_FLAGS_NONE)
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    _rwlock_read_lock_timeout((rwl), SYNCH_NO_TIMEOUT, SYNCH_FLAGS_NONE)
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#define rwlock_write_trylock(rwl) \
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#define rwlock_write_trylock(rwl) \
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    _rwlock_write_lock_timeout((rwl),SYNCH_NO_TIMEOUT,SYNCH_FLAGS_NON_BLOCKING)
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    _rwlock_write_lock_timeout((rwl), SYNCH_NO_TIMEOUT, \
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        SYNCH_FLAGS_NON_BLOCKING)
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#define rwlock_read_trylock(rwl) \
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#define rwlock_read_trylock(rwl) \
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    _rwlock_read_lock_timeout((rwl),SYNCH_NO_TIMEOUT,SYNCH_FLAGS_NON_BLOCKING)
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    _rwlock_read_lock_timeout((rwl), SYNCH_NO_TIMEOUT, \
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        SYNCH_FLAGS_NON_BLOCKING)
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#define rwlock_write_lock_timeout(rwl,usec) \
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#define rwlock_write_lock_timeout(rwl, usec) \
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    _rwlock_write_lock_timeout((rwl),(usec),SYNCH_FLAGS_NONE)
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    _rwlock_write_lock_timeout((rwl), (usec), SYNCH_FLAGS_NONE)
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#define rwlock_read_lock_timeout(rwl,usec) \
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#define rwlock_read_lock_timeout(rwl, usec) \
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    _rwlock_read_lock_timeout((rwl),(usec),SYNCH_FLAGS_NONE)
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    _rwlock_read_lock_timeout((rwl), (usec), SYNCH_FLAGS_NONE)
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extern void rwlock_initialize(rwlock_t *rwl);
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extern void rwlock_initialize(rwlock_t *rwl);
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extern void rwlock_read_unlock(rwlock_t *rwl);
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extern void rwlock_read_unlock(rwlock_t *rwl);
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extern void rwlock_write_unlock(rwlock_t *rwl);
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extern void rwlock_write_unlock(rwlock_t *rwl);
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extern int _rwlock_read_lock_timeout(rwlock_t *rwl, uint32_t usec, int flags);
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extern int _rwlock_read_lock_timeout(rwlock_t *rwl, uint32_t usec, int flags);