diff options
Diffstat (limited to 'doc/CallDel.3')
| -rw-r--r-- | doc/CallDel.3 | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/doc/CallDel.3 b/doc/CallDel.3 index 0f53b2e..766621a 100644 --- a/doc/CallDel.3 +++ b/doc/CallDel.3 @@ -26,7 +26,6 @@ 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 @@ -36,11 +35,13 @@ 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: +.PP .CS -typedef void Tcl_InterpDeleteProc( +typedef void \fBTcl_InterpDeleteProc\fR( ClientData \fIclientData\fR, Tcl_Interp *\fIinterp\fR); .CE +.PP The \fIclientData\fR and \fIinterp\fR parameters are copies of the \fIclientData\fR and \fIinterp\fR arguments given to \fBTcl_CallWhenDeleted\fR. @@ -56,6 +57,11 @@ 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. - +.PP +Note that if the callback is being used to delete a resource that \fImust\fR +be released on exit, \fBTcl_CreateExitHandler\fR should be used to ensure that +a callback is received even if the application terminates without deleting the interpreter. +.SH "SEE ALSO" +Tcl_CreateExitHandler(3), Tcl_CreateThreadExitHandler(3) .SH KEYWORDS -callback, delete, interpreter +callback, cleanup, delete, interpreter |