Muokkaa

Jaa


CBaseAllocator.SetWaiting method

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The SetWaiting method increments the count of waiting threads.

Syntax

void SetWaiting();

Parameters

This method has no parameters.

Return value

This method does not return a value.

Remarks

This method increments the CBaseAllocator::m_lWaiting member variable. If a thread is blocked in the CBaseAllocator::GetBuffer method, the allocator calls SetWaiting and then waits for the CBaseAllocator::m_hSem semaphore to be signaled. The CBaseAllocator::ReleaseBuffer method signals the semaphore and sets m_lWaiting back to zero.

Requirements

Requirement Value
Header
Amfilter.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CBaseAllocator Class