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/*
* tclTrace.c --
*
* This file contains code to handle most trace management.
*
* Copyright (c) 1987-1993 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
* Copyright (c) 1998-2000 Scriptics Corporation.
* Copyright (c) 2002 ActiveState Corporation.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* RCS: @(#) $Id: tclTrace.c,v 1.21.4.2 2005/04/12 21:10:04 msofer Exp $
* RCS: @(#) $Id: tclTrace.c,v 1.21.4.3 2005/06/13 01:46:18 msofer Exp $
*/
#include "tclInt.h"
/*
* Structure used to hold information about variable traces:
*/
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* hold command. This field must be the
* last in the structure, so that it can
* be larger than 4 bytes. */
} TraceCommandInfo;
/*
* Used by command execution traces. Note that we assume in the code
* that the first two defines are exactly 4 times the
* 'TCL_TRACE_ENTER_EXEC' and 'TCL_TRACE_LEAVE_EXEC' constants.
* that TCL_TRACE_ENTER_DURING_EXEC == 4 * TCL_TRACE_ENTER_EXEC and
* that TCL_TRACE_LEAVE_DURING_EXEC == 4 * TCL_TRACE_LEAVE_EXEC.
*
* TCL_TRACE_ENTER_DURING_EXEC - Trace each command inside the command
* currently being traced, before execution.
* TCL_TRACE_LEAVE_DURING_EXEC - Trace each command inside the command
* currently being traced, after execution.
* TCL_TRACE_ANY_EXEC - OR'd combination of all EXEC flags.
* TCL_TRACE_EXEC_IN_PROGRESS - The callback procedure on this trace
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Tcl_Obj *CONST objv[]; /* Pointers to Tcl_Obj of each argument. */
{
Interp *iPtr = (Interp *) interp;
Trace *tracePtr, *lastTracePtr;
ActiveInterpTrace active;
int curLevel;
int traceCode = TCL_OK;
TraceCommandInfo* tcmdPtr;
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tracePtr->flags |= TCL_TRACE_EXEC_IN_PROGRESS;
if (state == NULL) {
state = Tcl_SaveInterpState(interp, code);
}
if (tracePtr->flags & (TCL_TRACE_ENTER_EXEC | TCL_TRACE_LEAVE_EXEC)) {
/* New style trace */
if ((tracePtr->flags != TCL_TRACE_EXEC_IN_PROGRESS) &&
((tracePtr->flags & traceFlags) != 0)) {
tcmdPtr = (TraceCommandInfo*)tracePtr->clientData;
tcmdPtr->curFlags = traceFlags;
tcmdPtr->curCode = code;
traceCode = (tracePtr->proc)((ClientData)tcmdPtr,
(Tcl_Interp*)interp,
curLevel, command,
(Tcl_Command)cmdPtr,
objc, objv);
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