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core.sync.semaphore.semaphore.wait - multiple declarations
- Function Semaphore.wait
- Function Semaphore.wait
Function Semaphore.wait
Wait until the current count is above zero, then atomically decrement the count by one and return.
Prototype
void wait();
Throws
SyncError on error.
Function Semaphore.wait
Suspends the calling thread until the current count moves above zero or
until the supplied time period has elapsed. If the count moves above
zero in this interval, then atomically decrement the count by one and
return true. Otherwise, return false.
Prototype
bool wait( Duration period );
Parameters
| Name | Description |
|---|---|
| period | The time to wait. |
In
period must be non-negative.
Throws
SyncError on error.
Returns
true if notified before the timeout and false if not.
Authors
Sean Kelly