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55 lines
1.5 KiB
55 lines
1.5 KiB
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1992.
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//
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// File: utexcept.cxx
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//
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// Contents: Functions used to make exception handling nicer.
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//
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// Functions: SafeIUnknownRelease
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//
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// History: 22-Jan-93 Ricksa Created
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//
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//--------------------------------------------------------------------------
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#include <ole2int.h>
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//+-------------------------------------------------------------------------
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//
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// Function: SafeIUnknownRelease
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//
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// Synopsis: Guarantees that an IUnknown can be released without
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// causing an to be thrown outside of this routine.
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//
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// Arguments: [pUnk] - pointer to interface instance to release
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//
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// Algorithm: Verify pointer is not NULL then call its Release operation
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// inside of a try block.
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//
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// History: 22-Jan-93 Ricksa Created
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//
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// Notes: This exists because we are working under the assumption
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// that Release (like close on a file) cannot really fail.
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// And that if it does fail it should be ignored. This function
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// isn't really necessary, its purpose is simply to make code
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// smaller and easier to write by not duplicating thousands
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// of tiny try blocks throughout code which must clean up
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// interfaces before an exit.
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//
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//--------------------------------------------------------------------------
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void SafeIUnknownRelease(IUnknown *pUnk)
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{
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TRY
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{
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if (pUnk)
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{
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pUnk->Release();
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}
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}
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CATCH(CException, e)
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{
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HandleException(e);
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}
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END_CATCH
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}
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