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Open CASCADE Technology
7.5.0
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Support of handling of C signals as C++-style exceptions, and implementation of C++ exception handling on platforms that do not implement these natively. More...
#include <Standard.hxx>#include <Standard_Handle.hxx>#include <Standard_PErrorHandler.hxx>#include <Standard_JmpBuf.hxx>#include <Standard_HandlerStatus.hxx>#include <Standard_ThreadId.hxx>#include <Standard_Type.hxx>Data Structures | |
| class | Standard_ErrorHandler |
| Class implementing mechanics of conversion of signals to exceptions. More... | |
| class | Standard_ErrorHandler::Callback |
| 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. More... | |
Macros | |
| #define | OCC_CATCH_SIGNALS |
Typedefs | |
| typedef Standard_ErrorHandler::Callback | Standard_ErrorHandlerCallback |
Support of handling of C signals as C++-style exceptions, and implementation of C++ exception handling on platforms that do not implement these natively.
The implementation is based on C long jumps.
If macro OCC_CONVERT_SIGNALS is defined, this enables macro OCC_CATCH_SIGNALS that can be used in the code (often inside try {} blocks) to convert C-style signals to standard C++ exceptions. This works only when OSD::SetSignal() is called to set appropriate signal handler. In the case of signal (like access violation, division by zero, etc.) it will jump to the nearest OCC_CATCH_SIGNALS in the call stack, which will then throw a C++ exception. This method is useful for Unix and Linux systems where C++ exceptions cannot be thrown from C signal handler.
On Windows with MSVC compiler, exceptions can be thrown directly from signal handler, this OCC_CONVERT_SIGNALS is not needed. Note however that this requires that compiler option /EHa is used.
| #define OCC_CATCH_SIGNALS |
1.8.13