Tcl_CreateObjCommand(interp, "testfilehandler", TestfilehandlerCmd,
	    NULL, NULL);
    Tcl_CreateObjCommand(interp, "testfilewait", TestfilewaitCmd,
	    NULL, NULL);
    Tcl_CreateObjCommand(interp, "testfindexecutable", TestfindexecutableCmd,
	    NULL, NULL);
    Tcl_CreateObjCommand(interp, "testfork", TestforkCmd,
        NULL, NULL);
    Tcl_CreateObjCommand(interp, "testalarm", TestalarmCmd,
	    NULL, NULL);
    Tcl_CreateObjCommand(interp, "testgotsig", TestgotsigCmd,
	    NULL, NULL);
    return TCL_OK;
}


	    testPipes[i].readFile = NULL;
	}
	initialized = 1;
    }

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "option ...");
        return TCL_ERROR;
    }
    pipePtr = NULL;
    if (objc >= 3) {
	if (Tcl_GetIntFromObj(interp, objv[2], &i) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (i >= MAX_PIPES) {

	}
    } else if (strcmp(Tcl_GetString(objv[1]), "empty") == 0) {
	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "index");
	    return TCL_ERROR;
	}

        while (read(GetFd(pipePtr->readFile), buffer, 4000) > 0) {
	    /* Empty loop body. */
        }
    } else if (strcmp(Tcl_GetString(objv[1]), "fill") == 0) {
	if (objc != 3) {
	    Tcl_WrongNumArgs(interp, 2, objv, "index");
	    return TCL_ERROR;
	}

	memset(buffer, 'a', 4000);

    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const *objv)	/* Argument strings. */
{
    pid_t pid;

    if (objc != 1) {
        Tcl_WrongNumArgs(interp, 1, objv, "");
        return TCL_ERROR;
    }
    pid = fork();
    if (pid == -1) {
        Tcl_AppendResult(interp,
                "Cannot fork", (char *)NULL);
        return TCL_ERROR;
    }
    /* Only needed when pthread_atfork is not present,
     * should not hurt otherwise. */
    if (pid==0) {
	Tcl_InitNotifier();
    }
    Tcl_SetObjResult(interp, Tcl_NewWideIntObj(pid));