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33 | 33 | ||
34 | #include <synch/condvar.h> |
34 | #include <synch/condvar.h> |
35 | #include <synch/mutex.h> |
35 | #include <synch/mutex.h> |
36 | #include <synch/waitq.h> |
36 | #include <synch/waitq.h> |
37 | #include <synch/synch.h> |
37 | #include <synch/synch.h> |
- | 38 | #include <arch.h> |
|
- | 39 | #include <typedefs.h> |
|
38 | 40 | ||
39 | /** Initialize condition variable |
41 | /** Initialize condition variable. |
40 | * |
- | |
41 | * Initialize condition variable. |
- | |
42 | * |
42 | * |
43 | * @param cv Condition variable. |
43 | * @param cv Condition variable. |
44 | */ |
44 | */ |
45 | void condvar_initialize(condvar_t *cv) |
45 | void condvar_initialize(condvar_t *cv) |
46 | { |
46 | { |
47 | waitq_initialize(&cv->wq); |
47 | waitq_initialize(&cv->wq); |
48 | } |
48 | } |
49 | 49 | ||
50 | /** Signal the condition has become true |
- | |
51 | * |
50 | /** |
52 | * Signal the condition has become true |
51 | * Signal the condition has become true |
53 | * to the first waiting thread by waking it up. |
52 | * to the first waiting thread by waking it up. |
54 | * |
53 | * |
55 | * @param cv Condition variable. |
54 | * @param cv Condition variable. |
56 | */ |
55 | */ |
57 | void condvar_signal(condvar_t *cv) |
56 | void condvar_signal(condvar_t *cv) |
58 | { |
57 | { |
59 | waitq_wakeup(&cv->wq, WAKEUP_FIRST); |
58 | waitq_wakeup(&cv->wq, WAKEUP_FIRST); |
60 | } |
59 | } |
61 | 60 | ||
62 | /** Signal the condition has become true |
- | |
63 | * |
61 | /** |
64 | * Signal the condition has become true |
62 | * Signal the condition has become true |
65 | * to all waiting threads by waking them up. |
63 | * to all waiting threads by waking them up. |
66 | * |
64 | * |
67 | * @param cv Condition variable. |
65 | * @param cv Condition variable. |
68 | */ |
66 | */ |
69 | void condvar_broadcast(condvar_t *cv) |
67 | void condvar_broadcast(condvar_t *cv) |
70 | { |
68 | { |
71 | waitq_wakeup(&cv->wq, WAKEUP_ALL); |
69 | waitq_wakeup(&cv->wq, WAKEUP_ALL); |
72 | } |
70 | } |
73 | 71 | ||
74 | /** Wait for the condition becoming true |
72 | /** Wait for the condition becoming true. |
75 | * |
- | |
76 | * Wait for the condition becoming true. |
- | |
77 | * |
73 | * |
78 | * @param cv Condition variable. |
74 | * @param cv Condition variable. |
79 | * @param mtx Mutex. |
75 | * @param mtx Mutex. |
80 | * @param usec Timeout value in microseconds. |
76 | * @param usec Timeout value in microseconds. |
81 | * @param trywait Blocking versus non-blocking operation mode switch. |
77 | * @param trywait Blocking versus non-blocking operation mode switch. |
Line 86... | Line 82... | ||
86 | * @return See comment for waitq_sleep_timeout(). |
82 | * @return See comment for waitq_sleep_timeout(). |
87 | */ |
83 | */ |
88 | int _condvar_wait_timeout(condvar_t *cv, mutex_t *mtx, __u32 usec, int trywait) |
84 | int _condvar_wait_timeout(condvar_t *cv, mutex_t *mtx, __u32 usec, int trywait) |
89 | { |
85 | { |
90 | int rc; |
86 | int rc; |
- | 87 | ipl_t ipl; |
|
91 | 88 | ||
- | 89 | ipl = waitq_sleep_prepare(&cv->wq); |
|
92 | mutex_unlock(mtx); |
90 | mutex_unlock(mtx); |
- | 91 | ||
93 | rc = waitq_sleep_timeout(&cv->wq, usec, trywait); |
92 | rc = waitq_sleep_timeout_unsafe(&cv->wq, usec, trywait); |
- | 93 | ||
94 | mutex_lock(mtx); |
94 | mutex_lock(mtx); |
- | 95 | waitq_sleep_finish(&cv->wq, rc, ipl); |
|
- | 96 | ||
95 | return rc; |
97 | return rc; |
96 | } |
98 | } |