Standard_ErrorHandlerCallback Class Reference

Defines a base class for callback objects that can be registered
in the OCC error handler (the class simulating C++ exceptions)
so as to be correctly destroyed when error handler is activated.

Note that this is needed only when Open CASCADE is compiled with
NO_CXX_EXCEPTION or OCC_CONVERT_SIGNALS options (i.e. on UNIX/Linux).
In that case, raising OCC exception and/or signal will not cause
C++ stack unwinding and destruction of objects created in the stack.

This class is intended to protect critical objects and operations in
the try {} catch {} block from being bypassed by OCC signal or exception.

Inherit your object from that class, implement DestroyCallback() function,
and call Register/Unregister in critical points.

Note that you must ensure that your object has life span longer than
that of the try {} block in which it calls Register().

#include <Standard_ErrorHandlerCallback.hxx>

Inheritance diagram for Standard_ErrorHandlerCallback:

Public Member Functions
DEFINE_STANDARD_ALLOC void	RegisterCallback ()
	Registers this callback object in the current error handler (if found).
void	UnregisterCallback ()
	Unregisters this callback object from the error handler.
virtual	~Standard_ErrorHandlerCallback ()
virtual void	DestroyCallback ()=0
	The callback function to perform necessary callback action. Called by the exception handler when it is being destroyed but still has this callback registered.
Protected Member Functions
	Standard_ErrorHandlerCallback ()
	Empty constructor

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Constructor & Destructor Documentation

virtual Standard_ErrorHandlerCallback::~Standard_ErrorHandlerCallback

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[virtual]

Standard_ErrorHandlerCallback::Standard_ErrorHandlerCallback

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[protected]

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Member Function Documentation

virtual void Standard_ErrorHandlerCallback::DestroyCallback

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[pure virtual]

DEFINE_STANDARD_ALLOC void Standard_ErrorHandlerCallback::RegisterCallback

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void Standard_ErrorHandlerCallback::UnregisterCallback

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The documentation for this class was generated from the following file:

• Standard_ErrorHandlerCallback.hxx