/usr/include/oce/Standard_ErrorHandlerCallback.hxx is in liboce-foundation-dev 0.17.2-2.
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// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to
// this header file considered to be the "object code" form of the original source.
#ifndef _Standard_ErrorHandlerCallback_HeaderFile
#define _Standard_ErrorHandlerCallback_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Macro.hxx>
#include <Standard_Address.hxx>
class Standard_ErrorHandler;
//! 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().
class Standard_ErrorHandlerCallback
{
public:
DEFINE_STANDARD_ALLOC
//! Registers this callback object in the current error handler
//! (if found).
void RegisterCallback() ;
//! Unregisters this callback object from the error handler.
void UnregisterCallback() ;
virtual Standard_EXPORT ~Standard_ErrorHandlerCallback ();
//! The callback function to perform necessary callback action.
//! Called by the exception handler when it is being destroyed but
//! still has this callback registered.
Standard_EXPORT virtual void DestroyCallback() = 0;
friend class Standard_ErrorHandler;
protected:
//! Empty constructor
Standard_ErrorHandlerCallback();
private:
Standard_Address myHandler;
Standard_Address myPrev;
Standard_Address myNext;
};
#include <Standard_ErrorHandlerCallback.lxx>
#endif // _Standard_ErrorHandlerCallback_HeaderFile
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