144 lines
2.4 KiB
C++
144 lines
2.4 KiB
C++
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/*++
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Copyright (c) 1995-1996 Microsoft Corporation
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Module Name:
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Mid.cxx
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Abstract:
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Implements the CMid class.
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Author:
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Mario Goertzel [MarioGo]
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Revision History:
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MarioGo 12-13-95 Bits 'n pieces
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MarioGo 02-01-96 Move binding handles out of mid
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--*/
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#include<or.hxx>
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CRITICAL_SECTION gcsMidLock;
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RPC_BINDING_HANDLE
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CMid::GetBinding(
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OUT USHORT &index
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)
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/*++
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Routine Description:
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Gets an RPC binding handle to the remote machine.
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Arguments:
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index - index into the string array contianed within
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this MID structure which can be passed to BindingFailed().
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Maybe modified even on failure.
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Return Value:
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0 - when no more binding are available.
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non-zero - A binding to the machine.
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--*/
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{
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PWSTR pwstrT;
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RPC_BINDING_HANDLE hserver;
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if (IsLocal())
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{
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return(0);
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}
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CMutexLock lock(&gcsMidLock);
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// Loop until we get a binding handle or run out of string bindings.
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for (;;)
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{
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pwstrT = &_dsa.aStringArray[_iStringBinding];
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if (*pwstrT == 0)
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{
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// Reached the end of the string bindings; give up..
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_iStringBinding = 0;
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return(0);
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}
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index = pwstrT - _dsa.aStringArray;
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lock.Unlock();
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if (_fDynamic)
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{
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// Create binding without an endpoint.
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hserver = ::GetBinding(pwstrT);
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}
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else
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{
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hserver = GetBindingToOr(pwstrT);
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}
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if (hserver != 0)
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{
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// index is already correct.
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return(hserver);
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}
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lock.Lock();
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BindingFailed(index);
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}
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ASSERT(0);
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}
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void
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CMid::BindingFailed(
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IN USHORT Index
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)
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/*++
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Routine Description:
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What a call on a binding handle associated with an index
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returned from GetBinding() fails this routine must be
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call before the next call to GetBinding() to update
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the internal state.
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Arguments:
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Index - An index updated by a previous call to GetBinding().
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Notes:
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Maybe called with the gcsMidLock already held.
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Return Value:
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None
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--*/
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{
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USHORT newIndex;
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PWSTR pwstrT = &_dsa.aStringArray[Index];
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pwstrT = OrStringSearch(pwstrT, 0) + 1;
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newIndex = pwstrT - _dsa.aStringArray;
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CMutexLock lock(&gcsMidLock);
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if (newIndex > _iStringBinding)
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{
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_iStringBinding = newIndex;
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}
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}
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