diff options
| author | Justus Winter <4winter@informatik.uni-hamburg.de> | 2015-07-25 01:46:53 +0200 |
|---|---|---|
| committer | Justus Winter <4winter@informatik.uni-hamburg.de> | 2015-09-14 14:45:05 +0200 |
| commit | 7e8ae7880a9e752884c7bcb674e6d1e7c1f325d4 (patch) | |
| tree | 8e94ace3a108b3df4db3ee035f13170e675444e4 | |
| parent | 428d6a971cffaba40b0f8ea5f66c3a3e0c853e88 (diff) | |
kern: new function `thread_sleep_lock'
* kern/sched_prim.c (thread_sleep_lock): New function.
* kern/sched_prim.h (thread_sleep_lock): New delcaration.
| -rw-r--r-- | kern/sched_prim.c | 18 | ||||
| -rw-r--r-- | kern/sched_prim.h | 4 |
2 files changed, 22 insertions, 0 deletions
diff --git a/kern/sched_prim.c b/kern/sched_prim.c index 580ca43..a06cc92 100644 --- a/kern/sched_prim.c +++ b/kern/sched_prim.c @@ -458,6 +458,24 @@ void thread_sleep( } /* + * thread_sleep_lock: + * + * Cause the current thread to wait until the specified event + * occurs. The specified lock is unlocked before releasing + * the cpu. (This is a convenient way to sleep without manually + * calling assert_wait). + */ +void thread_sleep_lock( + event_t event, + lock_t lock, + boolean_t interruptible) +{ + assert_wait(event, interruptible); /* assert event */ + lock_done(lock); /* release the lock */ + thread_block((void (*)()) 0); /* block ourselves */ +} + +/* * thread_bind: * * Force a thread to execute on the specified processor. diff --git a/kern/sched_prim.h b/kern/sched_prim.h index bb1865c..8b3f14b 100644 --- a/kern/sched_prim.h +++ b/kern/sched_prim.h @@ -71,6 +71,10 @@ extern void thread_sleep( event_t event, simple_lock_t lock, boolean_t interruptible); +extern void thread_sleep_lock( + event_t event, + lock_t lock, + boolean_t interruptible); extern void thread_wakeup(void); /* for function pointers */ extern void thread_wakeup_prim( event_t event, |