windows-server-2003/ds/security/services/w32time/hwprov/mycritsec.cpp

//--------------------------------------------------------------------
// MyCritSec - implementation
// Copyright (C) Microsoft Corporation, 2000
//
// Created by: Louis Thomas (louisth), 02-03-00
//
// exception handling wrapper for critical sections
//

#include "pch.h" // precompiled headers

//####################################################################
// module public functions

//--------------------------------------------------------------------
HRESULT myHExceptionCode(EXCEPTION_POINTERS * pep) {
    HRESULT hr=pep->ExceptionRecord->ExceptionCode;
    if (!FAILED(hr)) {
        hr=HRESULT_FROM_WIN32(hr);
    }
    return hr;
}


//--------------------------------------------------------------------
HRESULT myEnterCriticalSection(CRITICAL_SECTION * pcs) {
    HRESULT hr;

    _BeginTryWith(hr) {
        EnterCriticalSection(pcs);
    } _TrapException(hr);
    _JumpIfError(hr, error, "EnterCriticalSection");

    hr=S_OK;
error:
    return hr;
}

//--------------------------------------------------------------------
HRESULT myTryEnterCriticalSection(CRITICAL_SECTION * pcs, BOOL * pbEntered) {
    BOOL     bEntered = FALSE;
    HRESULT  hr;

    _BeginTryWith(hr) {
        bEntered = TryEnterCriticalSection(pcs);
    } _TrapException(hr);
    _JumpIfError(hr, error, "TryEnterCriticalSection");

    *pbEntered = bEntered; 
    hr = S_OK;
error:
    return hr;
}

//--------------------------------------------------------------------
HRESULT myLeaveCriticalSection(CRITICAL_SECTION * pcs) {
    HRESULT hr;

    _BeginTryWith(hr) {
        LeaveCriticalSection(pcs);
    } _TrapException(hr);
    _JumpIfError(hr, error, "LeaveCriticalSection");

    hr=S_OK;
error:
    return hr;
}

//--------------------------------------------------------------------
HRESULT myInitializeCriticalSection(CRITICAL_SECTION * pcs) {
    HRESULT hr;

    _BeginTryWith(hr) {
        InitializeCriticalSection(pcs);
    } _TrapException(hr);
    _JumpIfError(hr, error, "InitializeCriticalSection");

    hr=S_OK;
error:
    return hr;
}

//--------------------------------------------------------------------
HRESULT myRtlInitializeResource(IN PRTL_RESOURCE Resource) { 
    HRESULT hr; 
    
    _BeginTryWith(hr) { 
	RtlInitializeResource(Resource); 
    } _TrapException(hr); 
    _JumpIfError(hr, error, "RtlInitializeResource"); 

    hr = S_OK; 
 error:
    return hr; 
}


//--------------------------------------------------------------------
HRESULT myRtlAcquireResourceExclusive(IN PRTL_RESOURCE Resource, IN BOOLEAN Wait, OUT BOOLEAN *pResult) { 
    HRESULT hr; 
    
    _BeginTryWith(hr) { 
	*pResult = RtlAcquireResourceExclusive(Resource, Wait); 
    } _TrapException(hr); 
    _JumpIfError(hr, error, "RtlAcquireResourceExclusive"); 

    hr = S_OK; 
 error:
    return hr; 
}

//--------------------------------------------------------------------
HRESULT myRtlAcquireResourceShared(IN PRTL_RESOURCE Resource, IN BOOLEAN Wait, OUT BOOLEAN *pResult) { 
    HRESULT hr; 
    
    _BeginTryWith(hr) { 
	*pResult = RtlAcquireResourceShared(Resource, Wait); 
    } _TrapException(hr); 
    _JumpIfError(hr, error, "RtlAcquireResourceShared"); 

    hr = S_OK; 
 error:
    return hr; 
}

//--------------------------------------------------------------------
HRESULT myRtlReleaseResource(IN PRTL_RESOURCE Resource) { 
    HRESULT hr; 
    
    _BeginTryWith(hr) { 
	RtlReleaseResource(Resource); 
    } _TrapException(hr); 
    _JumpIfError(hr, error, "RtlReleaseResource"); 

    hr = S_OK; 
 error:
    return hr; 
}