Release a bidMessage from Procure()
Source position: exec.pas line 1293
procedure Vacate( |
sigSem: pSignalSemaphore; |
bidMsg: pSemaphoreMessage |
); |
sigSem |
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The SignalSemaphore that you wish to Vacate() |
bidMsg |
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The SemaphoreMessage that you wish to abort. The message's ssm_Semaphore field will be cleared. The message will be replied if it is still on the waiting list. If it is not on the waiting list, it is assumed that the semaphore is owned and it will be released. |
This function can be used to release a semaphore obtained via Procure(). However, the main purpose for this call is to be able to remove a bid for a semaphore that has not yet responded. This is required when a Procure() was issued and the program no longer needs to get the semaphore and wishes to cancel the Procure() request. The canceled request will be replied with the ssm_Semaphore field set to nil. If you own the semaphore, the message was already replied and only the ssm_Semaphore field will be cleared.
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Get a List of semaphores |
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Initialize a signal semaphore |
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Make signal semaphore available to others |
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Try to obtain a Semaphore without blocking |
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Gain exclusive access to a semaphore |
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Gain access to a semaphore in shared mode |
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Asynchron locking of a semaphore |