pykd/pykd/pyaux.h

#pragma once

///////////////////////////////////////////////////////////////////////////////

//  --> call back 
//  { PyThread_StateSave  state( winext->getThreadState() );
//    do_callback();
//  }
//
//  Ĺńëč ęîëáĺę áűë âűçâŕí č ďđč ýňîě ó ňĺęůĺăî ďîňîęŕ ńîőđŕíĺí ęîíňĺęńň ( áűë âűçîâ setExecutionStatus )
//  ňî ďĺđĺä âűďîëíĺíčĺě ďčňîíîâńęîăî ęîäŕ íóćíî âîńńňŕíîâčňü ęîíňĺęńň, ŕ ďîńëĺ âîçâđŕňŕ óďđŕâëĺíč˙,
//  ńíîâŕ ńîőđŕíčňü ĺăî

class PyThread_StateSave {

public:

    PyThread_StateSave( PyThreadState  **state ) 
        : m_state(NULL)
    {
        if ( *state != NULL )
        {
            m_state = state;
            PyEval_RestoreThread( *m_state );
        }
    }

    ~PyThread_StateSave() {
        if (m_state)
            *m_state =PyEval_SaveThread();
    }

private:

    PyThreadState       **m_state;
};

// { PyThread_StateRestore   state;
//   long_or_block_opreration();
// }

class PyThread_StateRestore {

public:

    explicit PyThread_StateRestore() {
        m_state = &m_ownState;
        *m_state =PyEval_SaveThread();
    }

    PyThread_StateRestore( PyThreadState  **state ) {
        if ( *state != NULL )
        {
            m_state = state;                
            *m_state =PyEval_SaveThread();
        }
    }

    ~PyThread_StateRestore() {
            PyEval_RestoreThread( *m_state );
    }

private:

    PyThreadState       **m_state;

    PyThreadState       *m_ownState;

};

///////////////////////////////////////////////////////////////////////////////