*
 * Copyright (c) 1991-1994 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tclIOUtil.c,v 1.8 1999/04/21 21:50:26 rjohnson Exp $
 */

#include "tclInt.h"
#include "tclPort.h"

/*
 * The following typedef declarations allow for hooking into the chain

    TclStatProc_ *proc;
{
    int retVal = TCL_ERROR;

    if (proc != NULL) {
	StatProc *newStatProcPtr;

	newStatProcPtr = (StatProc *)Tcl_Alloc(sizeof(StatProc));;

	if (newStatProcPtr != NULL) {
	    newStatProcPtr->proc = proc;
	    Tcl_MutexLock(&hookMutex);
	    newStatProcPtr->nextPtr = statProcList;
	    statProcList = newStatProcPtr;
	    Tcl_MutexUnlock(&hookMutex);

    TclAccessProc_ *proc;
{
    int retVal = TCL_ERROR;

    if (proc != NULL) {
	AccessProc *newAccessProcPtr;

	newAccessProcPtr = (AccessProc *)Tcl_Alloc(sizeof(AccessProc));;

	if (newAccessProcPtr != NULL) {
	    newAccessProcPtr->proc = proc;
	    Tcl_MutexLock(&hookMutex);
	    newAccessProcPtr->nextPtr = accessProcList;
	    accessProcList = newAccessProcPtr;
	    Tcl_MutexUnlock(&hookMutex);

{
    int retVal = TCL_ERROR;

    if (proc != NULL) {
	OpenFileChannelProc *newOpenFileChannelProcPtr;

	newOpenFileChannelProcPtr =
		(OpenFileChannelProc *)Tcl_Alloc(sizeof(OpenFileChannelProc));;

	if (newOpenFileChannelProcPtr != NULL) {
	    newOpenFileChannelProcPtr->proc = proc;
	    Tcl_MutexLock(&hookMutex);
	    newOpenFileChannelProcPtr->nextPtr = openFileChannelProcList;
	    openFileChannelProcList = newOpenFileChannelProcPtr;
	    Tcl_MutexUnlock(&hookMutex);