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170 lines
4.8 KiB
170 lines
4.8 KiB
/*++
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Copyright (c) 1998-2001 Microsoft Corporation
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Module Name:
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reftrace.h
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Abstract:
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This module contains public declarations and definitions for tracing
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and debugging reference count problems. This module uses the generic
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TRACE_LOG facility in tracelog.h.
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The REF_ACTION_* codes are declared separately in refaction.h
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Author:
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Keith Moore (keithmo) 10-Jun-1998
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Revision History:
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--*/
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#ifndef _REFTRACE_H_
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#define _REFTRACE_H_
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#if defined(__cplusplus)
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extern "C" {
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#endif // __cplusplus
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//
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// Pull in the action codes
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//
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#include "refaction.h"
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#define REF_TRACE_PROCESSOR_BITS 6 // MAXIMUM_PROCESSORS == 64 on Win64
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#define REF_TRACE_ACTION_BITS (16 - REF_TRACE_PROCESSOR_BITS)
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C_ASSERT((1 << REF_TRACE_PROCESSOR_BITS) >= MAXIMUM_PROCESSORS);
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C_ASSERT((1 << REF_TRACE_ACTION_BITS) >= REF_ACTION_MAX);
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//
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// This defines the entry written to the trace log.
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//
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typedef struct _REF_TRACE_LOG_ENTRY
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{
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PVOID pContext;
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PVOID pFileName;
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PEPROCESS pProcess;
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PETHREAD pThread;
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PVOID pCaller;
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PVOID pCallersCaller;
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LONG NewRefCount;
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USHORT LineNumber;
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USHORT Action : REF_TRACE_ACTION_BITS;
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USHORT Processor : REF_TRACE_PROCESSOR_BITS;
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} REF_TRACE_LOG_ENTRY, *PREF_TRACE_LOG_ENTRY;
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#define REF_TRACELOG_SIGNATURE ((ULONG) 'gLfR')
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//
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// Subtract REF_TRACE_OVERHEAD from a power of 2 when calculating the
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// number of entries in a reftrace log, to ensure that overall size is
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// a nice power of 2 and doesn't spill onto another page. This accounts
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// for the size of the TRACE_LOG struct itself and the overhead
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// imposed by the pool and the verifier. On x86, a REF_TRACE_LOG_ENTRY
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// is currently 32 bytes. If you modify the struct, please recalculate
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// REF_TRACE_OVERHEAD and *change the per-object* reftrace logs (in
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// UL_CONNECTION, UL_HTTP_CONNECTION, and UL_INTERNAL_REQUEST) accordingly.
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//
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#define REF_TRACE_OVERHEAD 2 // entries
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//
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// Manipulators.
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//
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PTRACE_LOG
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CreateRefTraceLog(
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IN ULONG LogSize,
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IN ULONG ExtraBytesInHeader
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);
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VOID
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DestroyRefTraceLog(
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IN PTRACE_LOG pLog
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);
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VOID
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ResetRefTraceLog(
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IN PTRACE_LOG pLog
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);
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LONGLONG
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WriteRefTraceLog(
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IN PTRACE_LOG pLog,
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IN PTRACE_LOG pLog2,
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IN USHORT Action,
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IN LONG NewRefCount,
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IN PVOID pContext,
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IN PVOID pFileName,
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IN USHORT LineNumber
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);
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#if REFERENCE_DEBUG
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#define CREATE_REF_TRACE_LOG( ptr, size, extra ) \
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(ptr) = CreateRefTraceLog( (size), (extra) )
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#define DESTROY_REF_TRACE_LOG( ptr ) \
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do \
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{ \
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DestroyRefTraceLog( ptr ); \
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(ptr) = NULL; \
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} while (FALSE)
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#define RESET_REF_TRACE_LOG( ptr ) \
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ResetRefTraceLog( ptr )
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#define WRITE_REF_TRACE_LOG( plog, act, ref, pctx, pfile, line ) \
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WriteRefTraceLog( \
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(plog), \
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NULL, \
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(act), \
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(ref), \
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(pctx), \
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(pfile), \
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(line) \
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)
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#define WRITE_REF_TRACE_LOG2( plog1, plog2, act, ref, pctx, pfile, line ) \
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WriteRefTraceLog( \
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(plog1), \
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(plog2), \
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(act), \
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(ref), \
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(pctx), \
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(pfile), \
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(line) \
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)
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#else // !REFERENCE_DEBUG
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#define CREATE_REF_TRACE_LOG( ptr, size, extra )
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#define DESTROY_REF_TRACE_LOG( ptr )
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#define RESET_REF_TRACE_LOG( ptr )
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#define WRITE_REF_TRACE_LOG( plog, act, ref, pctx, pfile, line )
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#define WRITE_REF_TRACE_LOG2( plog1, plog2 , act, ref, pctx, pfile, line )
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#endif // !REFERENCE_DEBUG
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#if defined(__cplusplus)
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} // extern "C"
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#endif // __cplusplus
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#endif // _REFTRACE_H_
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