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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #include <synch/synch.h> |
- | |
30 | #include <synch/condvar.h> |
29 | #include <synch/condvar.h> |
31 | #include <synch/mutex.h> |
30 | #include <synch/mutex.h> |
32 | #include <synch/waitq.h> |
31 | #include <synch/waitq.h> |
- | 32 | #include <synch/synch.h> |
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33 | 33 | ||
- | 34 | /** Initialize condition variable |
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- | 35 | * |
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- | 36 | * Initialize condition variable. |
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- | 37 | * |
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- | 38 | * @param cv Condition variable. |
|
- | 39 | */ |
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34 | void condvar_initialize(condvar_t *cv) |
40 | void condvar_initialize(condvar_t *cv) |
35 | { |
41 | { |
36 | waitq_initialize(&cv->wq); |
42 | waitq_initialize(&cv->wq); |
37 | } |
43 | } |
38 | 44 | ||
- | 45 | /** Signal the condition has become true |
|
- | 46 | * |
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- | 47 | * Signal the condition has become true |
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- | 48 | * to the first waiting thread by waking it up. |
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- | 49 | * |
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- | 50 | * @param Condition variable. |
|
- | 51 | */ |
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39 | void condvar_signal(condvar_t *cv) |
52 | void condvar_signal(condvar_t *cv) |
40 | { |
53 | { |
41 | waitq_wakeup(&cv->wq, WAKEUP_FIRST); |
54 | waitq_wakeup(&cv->wq, WAKEUP_FIRST); |
42 | } |
55 | } |
43 | 56 | ||
- | 57 | /** Signal the condition has become true |
|
- | 58 | * |
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- | 59 | * Signal the condition has become true |
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- | 60 | * to all waiting threads by waking them up. |
|
- | 61 | * |
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- | 62 | * @param Condition variable. |
|
- | 63 | */ |
|
44 | void condvar_broadcast(condvar_t *cv) |
64 | void condvar_broadcast(condvar_t *cv) |
45 | { |
65 | { |
46 | waitq_wakeup(&cv->wq, WAKEUP_ALL); |
66 | waitq_wakeup(&cv->wq, WAKEUP_ALL); |
47 | } |
67 | } |
48 | 68 | ||
- | 69 | /** Wait for the condition becoming true |
|
- | 70 | * |
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- | 71 | * Wait for the condition becoming true. |
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- | 72 | * |
|
- | 73 | * @param Condition variable. |
|
- | 74 | */ |
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49 | int _condvar_wait_timeout(condvar_t *cv, mutex_t *mtx, __u32 usec, int trywait) |
75 | int _condvar_wait_timeout(condvar_t *cv, mutex_t *mtx, __u32 usec, int trywait) |
50 | { |
76 | { |
51 | int rc; |
77 | int rc; |
52 | 78 | ||
53 | mutex_unlock(mtx); |
79 | mutex_unlock(mtx); |