man/man3/Tcl_CallWhenDeleted.3 - toolchains/skids - Git at Google

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 '\" Copyright (c) 1993 The Regents of the University of California.
 '\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
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 '\" manual entries.
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 .TH Tcl_CallWhenDeleted 3 7.0 Tcl "Tcl Library Procedures"
 .BS
 .SH NAME
 Tcl_CallWhenDeleted, Tcl_DontCallWhenDeleted \- Arrange for callback when interpreter is deleted
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
 .sp
 \fBTcl_CallWhenDeleted\fR(\fIinterp\fR, \fIproc\fR, \fIclientData\fR)
 .sp
 \fBTcl_DontCallWhenDeleted\fR(\fIinterp\fR, \fIproc\fR, \fIclientData\fR)
 .SH ARGUMENTS
 .AS Tcl_InterpDeleteProc clientData
 .AP Tcl_Interp *interp in
 Interpreter with which to associated callback.
 .AP Tcl_InterpDeleteProc *proc in
 Procedure to call when \fIinterp\fR is deleted.
 .AP ClientData clientData in
 Arbitrary one-word value to pass to \fIproc\fR.
 .BE

 .SH DESCRIPTION
 .PP
 \fBTcl_CallWhenDeleted\fR arranges for \fIproc\fR to be called by
 \fBTcl_DeleteInterp\fR if/when \fIinterp\fR is deleted at some future
 time.  \fIProc\fR will be invoked just before the interpreter
 is deleted, but the interpreter will still be valid at the
 time of the call.
 \fIProc\fR should have arguments and result that match the
 type \fBTcl_InterpDeleteProc\fR:
 .CS
 typedef void Tcl_InterpDeleteProc(
 	ClientData \fIclientData\fR,
 	Tcl_Interp *\fIinterp\fR);
 .CE
 The \fIclientData\fR and \fIinterp\fR parameters are
 copies of the \fIclientData\fR and \fIinterp\fR arguments given
 to \fBTcl_CallWhenDeleted\fR.
 Typically, \fIclientData\fR points to an application-specific
 data structure that \fIproc\fR uses to perform cleanup when an
 interpreter is about to go away.
 \fIProc\fR does not return a value.
 .PP
 \fBTcl_DontCallWhenDeleted\fR cancels a previous call to
 \fBTcl_CallWhenDeleted\fR with the same arguments, so that
 \fIproc\fR won't be called after all when \fIinterp\fR is
 deleted.
 If there is no deletion callback that matches \fIinterp\fR,
 \fIproc\fR, and \fIclientData\fR then the call to
 \fBTcl_DontCallWhenDeleted\fR has no effect.

 .SH KEYWORDS
 callback, delete, interpreter
	'\"
	'\" Copyright (c) 1993 The Regents of the University of California.
	'\" Copyright (c) 1994-1996 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: CallDel.3,v 1.2 1998/09/14 18:39:46 stanton Exp $
	'\"
	'\" The definitions below are for supplemental macros used in Tcl/Tk
	'\" manual entries.
	'\"
	'\" .AP type name in/out ?indent?
	'\" Start paragraph describing an argument to a library procedure.
	'\" type is type of argument (int, etc.), in/out is either "in", "out",
	'\" or "in/out" to describe whether procedure reads or modifies arg,
	'\" and indent is equivalent to second arg of .IP (shouldn't ever be
	'\" needed; use .AS below instead)
	'\"
	'\" .AS ?type? ?name?
	'\" Give maximum sizes of arguments for setting tab stops. Type and
	'\" name are examples of largest possible arguments that will be passed
	'\" to .AP later. If args are omitted, default tab stops are used.
	'\"
	'\" .BS
	'\" Start box enclosure. From here until next .BE, everything will be
	'\" enclosed in one large box.
	'\"
	'\" .BE
	'\" End of box enclosure.
	'\"
	'\" .CS
	'\" Begin code excerpt.
	'\"
	'\" .CE
	'\" End code excerpt.
	'\"
	'\" .VS ?version? ?br?
	'\" Begin vertical sidebar, for use in marking newly-changed parts
	'\" of man pages. The first argument is ignored and used for recording
	'\" the version when the .VS was added, so that the sidebars can be
	'\" found and removed when they reach a certain age. If another argument
	'\" is present, then a line break is forced before starting the sidebar.
	'\"
	'\" .VE
	'\" End of vertical sidebar.
	'\"
	'\" .DS
	'\" Begin an indented unfilled display.
	'\"
	'\" .DE
	'\" End of indented unfilled display.
	'\"
	'\" .SO
	'\" Start of list of standard options for a Tk widget. The
	'\" options follow on successive lines, in four columns separated
	'\" by tabs.
	'\"
	'\" .SE
	'\" End of list of standard options for a Tk widget.
	'\"
	'\" .OP cmdName dbName dbClass
	'\" Start of description of a specific option. cmdName gives the
	'\" option's name as specified in the class command, dbName gives
	'\" the option's name in the option database, and dbClass gives
	'\" the option's class in the option database.
	'\"
	'\" .UL arg1 arg2
	'\" Print arg1 underlined, then print arg2 normally.
	'\"
	'\" RCS: @(#) $Id: man.macros,v 1.4 2000/08/25 06:18:32 ericm Exp $
	'\"
	'\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
	.if t .wh -1.3i ^B
	.nr ^l \n(.l
	.ad b
	'\" # Start an argument description
	.de AP
	.ie !"\\$4"" .TP \\$4
	.el \{\
	. ie !"\\$2"" .TP \\n()Cu
	. el .TP 15
	.\}
	.ta \\n()Au \\n()Bu
	.ie !"\\$3"" \{\
	\&\\$1 \\fI\\$2\\fP (\\$3)
	.\".b
	.\}
	.el \{\
	.br
	.ie !"\\$2"" \{\
	\&\\$1 \\fI\\$2\\fP
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	\&\\fI\\$1\\fP
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	..
	'\" # define tabbing values for .AP
	.de AS
	.nr )A 10n
	.if !"\\$1"" .nr )A \\w'\\$1'u+3n
	.nr )B \\n()Au+15n
	.\"
	.if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n
	.nr )C \\n()Bu+\\w'(in/out)'u+2n
	..
	.AS Tcl_Interp Tcl_CreateInterp in/out
	'\" # BS - start boxed text
	'\" # ^y = starting y location
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	.\" box if the box started on an earlier page.
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	\h'-1.5n'\L'\|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'\|0u-1.5n\(ul'
	.\}
	.el \}\
	\h'-1.5n'\L'\|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'\|0u-1.5n\(ul'
	.\}
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	.\" draw two sides but no top otherwise.
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	.el \h'-1.5n'\L'\|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'\|0u'\c
	.\}
	.if \\n(^v \{\
	.nr ^x \\n(^tu+1v-\\n(^Yu
	\kx\h'-\\nxu'\h'\|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'\|0u'\c
	.\}
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	'fi
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	.de SO
	.SH "STANDARD OPTIONS"
	.LP
	.nf
	.ta 5.5c 11c
	.ft B
	..
	'\" # SE - end of list of standard options
	.de SE
	.fi
	.ft R
	.LP
	See the \\fBoptions\\fR manual entry for details on the standard options.
	..
	'\" # OP - start of full description for a single option
	.de OP
	.LP
	.nf
	.ta 4c
	Command-Line Name: \\fB\\$1\\fR
	Database Name: \\fB\\$2\\fR
	Database Class: \\fB\\$3\\fR
	.fi
	.IP
	..
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	.de CS
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	.nf
	.ta .25i .5i .75i 1i
	..
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	.de CE
	.fi
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	..
	.de UL
	\\$1\l'\|0\(ul'\\$2
	..
	.TH Tcl_CallWhenDeleted 3 7.0 Tcl "Tcl Library Procedures"
	.BS
	.SH NAME
	Tcl_CallWhenDeleted, Tcl_DontCallWhenDeleted \- Arrange for callback when interpreter is deleted
	.SH SYNOPSIS
	.nf
	\fB#include <tcl.h>\fR
	.sp
	\fBTcl_CallWhenDeleted\fR(\fIinterp\fR, \fIproc\fR, \fIclientData\fR)
	.sp
	\fBTcl_DontCallWhenDeleted\fR(\fIinterp\fR, \fIproc\fR, \fIclientData\fR)
	.SH ARGUMENTS
	.AS Tcl_InterpDeleteProc clientData
	.AP Tcl_Interp *interp in
	Interpreter with which to associated callback.
	.AP Tcl_InterpDeleteProc *proc in
	Procedure to call when \fIinterp\fR is deleted.
	.AP ClientData clientData in
	Arbitrary one-word value to pass to \fIproc\fR.
	.BE

	.SH DESCRIPTION
	.PP
	\fBTcl_CallWhenDeleted\fR arranges for \fIproc\fR to be called by
	\fBTcl_DeleteInterp\fR if/when \fIinterp\fR is deleted at some future
	time. \fIProc\fR will be invoked just before the interpreter
	is deleted, but the interpreter will still be valid at the
	time of the call.
	\fIProc\fR should have arguments and result that match the
	type \fBTcl_InterpDeleteProc\fR:
	.CS
	typedef void Tcl_InterpDeleteProc(
	ClientData \fIclientData\fR,
	Tcl_Interp *\fIinterp\fR);
	.CE
	The \fIclientData\fR and \fIinterp\fR parameters are
	copies of the \fIclientData\fR and \fIinterp\fR arguments given
	to \fBTcl_CallWhenDeleted\fR.
	Typically, \fIclientData\fR points to an application-specific
	data structure that \fIproc\fR uses to perform cleanup when an
	interpreter is about to go away.
	\fIProc\fR does not return a value.
	.PP
	\fBTcl_DontCallWhenDeleted\fR cancels a previous call to
	\fBTcl_CallWhenDeleted\fR with the same arguments, so that
	\fIproc\fR won't be called after all when \fIinterp\fR is
	deleted.
	If there is no deletion callback that matches \fIinterp\fR,
	\fIproc\fR, and \fIclientData\fR then the call to
	\fBTcl_DontCallWhenDeleted\fR has no effect.

	.SH KEYWORDS
	callback, delete, interpreter