166 lines
3.3 KiB
C++
166 lines
3.3 KiB
C++
/*++
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Copyright (c) 1994 Microsoft Corporation
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Module Name :
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tsres.hxx
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Abstract:
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Defines a wrapper class for locks ( for TCP Services Resources)
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used for light-weight syncronization and portability to Win95.
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Author:
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John Ludeman ( JohnL) 21-Nov-1994
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Project:
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TCP Services Common DLL
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Revision History:
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--*/
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# ifndef _TSRES_HXX_
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# define _TSRES_HXX_
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/************************************************************
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* Include Headers
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************************************************************/
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# ifdef __cplusplus
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extern "C" {
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# endif // __cplusplus
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# include <nt.h>
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# include <ntrtl.h>
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# ifdef __cplusplus
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}; // extern "C"
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# endif // __cplusplus
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#include <pudebug.h>
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# ifndef TCP_REQUIRE
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#define TCP_REQUIRE(x) DBG_REQUIRE(x)
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# endif // TCP_REQUIRE
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# ifndef TCP_ASSERT
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#define TCP_ASSERT(x) DBG_ASSERT(x)
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# endif // TCP_REQUIRE
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/************************************************************
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* Type Definitions
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************************************************************/
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# ifdef __cplusplus
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extern "C" {
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# endif // __cplusplus
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BOOL
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InetInitializeResource(
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IN PRTL_RESOURCE Resource
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);
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BOOL
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InetAcquireResourceShared(
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IN PRTL_RESOURCE Resource,
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IN BOOL Wait
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);
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BOOL
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InetAcquireResourceExclusive(
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IN PRTL_RESOURCE Resource,
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IN BOOL Wait
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);
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BOOL
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InetReleaseResource(
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IN PRTL_RESOURCE Resource
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);
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BOOL
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InetConvertSharedToExclusive(
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IN PRTL_RESOURCE Resource
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);
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BOOL
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InetConvertExclusiveToShared(
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IN PRTL_RESOURCE Resource
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);
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VOID
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InetDeleteResource (
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IN PRTL_RESOURCE Resource
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);
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VOID
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InetDumpResource(
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IN PRTL_RESOURCE Resource
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);
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# ifdef __cplusplus
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}; // extern "C"
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# endif // __cplusplus
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///////////////////////////////////////////////////////////////////////
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//
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// Simple RTL_RESOURCE Wrapper class
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//
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//////////////////////////////////////////////////////////////////////
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enum TSRES_LOCK_TYPE
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{
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TSRES_LOCK_READ = 0, // Take the lock for read only
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TSRES_LOCK_WRITE // Take the lock for write
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};
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enum TSRES_CONV_TYPE
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{
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TSRES_CONV_READ = 0, // Convert the lock from write to read
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TSRES_CONV_WRITE // Convert the lock from read to write
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};
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class dllexp TS_RESOURCE
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{
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public:
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TS_RESOURCE()
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{ DBG_REQUIRE( InetInitializeResource( &_rtlres )); }
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~TS_RESOURCE()
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{ InetDeleteResource( &_rtlres ); }
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void Lock( enum TSRES_LOCK_TYPE type )
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{ if ( type == TSRES_LOCK_READ ) {
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DBG_REQUIRE( InetAcquireResourceShared( &_rtlres, TRUE ) );
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} else {
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DBG_REQUIRE( InetAcquireResourceExclusive( &_rtlres, TRUE ));
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}
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}
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void Convert( enum TSRES_CONV_TYPE type )
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{ if ( type == TSRES_CONV_READ ) {
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DBG_REQUIRE( InetConvertExclusiveToShared( &_rtlres ));
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} else {
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DBG_REQUIRE( InetConvertSharedToExclusive( &_rtlres ));
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}
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}
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void Unlock( VOID )
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{ DBG_REQUIRE( InetReleaseResource( &_rtlres )); }
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private:
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RTL_RESOURCE _rtlres;
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};
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# endif // _TSRES_HXX_
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/************************ End of File ***********************/
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