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Tcl_CallWhenDeleted(3) Tcl Library Procedures Tcl_CallWhenDeleted(3)
Tcl_CallWhenDeleted, Tcl_DontCallWhenDeleted - Arrange for callback when interpreter is
Tcl_CallWhenDeleted(interp, proc, clientData)
Tcl_DontCallWhenDeleted(interp, proc, clientData)
Tcl_Interp *interp (in) Interpreter with which to associated call-
Tcl_InterpDeleteProc *proc (in) Procedure to call when interp is deleted.
ClientData clientData (in) Arbitrary one-word value to pass to proc.
Tcl_CallWhenDeleted arranges for proc to be called by Tcl_DeleteInterp if/when interp is
deleted at some future time. Proc will be invoked just before the interpreter is deleted,
but the interpreter will still be valid at the time of the call. Proc should have argu-
ments and result that match the type Tcl_InterpDeleteProc:
typedef void Tcl_InterpDeleteProc(
The clientData and interp parameters are copies of the clientData and interp arguments
given to Tcl_CallWhenDeleted. Typically, clientData points to an application-specific
data structure that proc uses to perform cleanup when an interpreter is about to go away.
Proc does not return a value.
Tcl_DontCallWhenDeleted cancels a previous call to Tcl_CallWhenDeleted with the same argu-
ments, so that proc won't be called after all when interp is deleted. If there is no
deletion callback that matches interp, proc, and clientData then the call to Tcl_DontCall-
WhenDeleted has no effect.
callback, delete, interpreter
Tcl 7.0 Tcl_CallWhenDeleted(3)
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