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IHostSemaphore::ReleaseSemaphore Method

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Increases the count of the current IHostSemaphore instance by the specified amount.

Syntax

HRESULT ReleaseSemaphore (  
    [in]  LONG  lReleaseCount,  
    [out] LONG  *lpPreviousCount  
);

Parameters

lReleaseCount
[in] The amount by which to increase the count of the current IHostSemaphore instance. This amount must be greater than zero.

lpPreviousCount
[out] A pointer to the previous count, or null if the caller does not require the previous count.

Return Value

HRESULT Description
S_OK ReleaseSemaphore returned successfully.
HOST_E_CLRNOTAVAILABLE The common language runtime (CLR) has not been loaded into a process, or the CLR is in a state in which it cannot run managed code or process the call successfully.
HOST_E_TIMEOUT The call timed out.
HOST_E_NOT_OWNER The caller does not own the lock.
HOST_E_ABANDONED An event was canceled while a blocked thread or fiber was waiting on it.
E_FAIL An unknown catastrophic failure occurred. When a method returns E_FAIL, the CLR is no longer usable within the process. Subsequent calls to hosting methods return HOST_E_CLRNOTAVAILABLE.

Remarks

The CLR typically calls ReleaseSemaphore to notify the host that it has finished using a resource, passing a value of 1 for the lReleaseCount parameter.

Requirements

Platforms: See System Requirements.

Header: MSCorEE.h

Library: Included as a resource in MSCorEE.dll

.NET Framework Versions: Available since 2.0

See also