static void
signal_handler(int sig_num)
{
#ifdef WITH_THREAD
#ifdef WITH_PTH
if (PyThread_get_thread_ident() != main_thread) {
pth_raise(*(pth_t *) main_thread, sig_num);
return;
}
#endif
/* See NOTES section above */
if (getpid() == main_pid) {
#endif
is_tripped++;
Handlers[sig_num].tripped = 1;
Py_AddPendingCall(checksignals_witharg, NULL);
#ifdef WITH_THREAD
}
#endif
#ifdef SIGCHLD
if (sig_num == SIGCHLD) {
/* To avoid infinite recursion, this signal remains
reset until explicit re-instated.
Don't clear the 'func' field as it is our pointer
to the Python handler... */
return;
}
#endif
#ifdef HAVE_SIGINTERRUPT
siginterrupt(sig_num, 1);
#endif
PyOS_setsig(sig_num, signal_handler);
}
/* Replacements for intrcheck.c functionality
* Declared in pyerrors.h
*/
void
PyErr_SetInterrupt(void)
{
is_tripped++;
Handlers[SIGINT].tripped = 1;
Py_AddPendingCall((int (*)(void *))PyErr_CheckSignals, NULL);
}
//--------------------------------------------------------------------------------
//
// Python Watch Dog
//
//--------------------------------------------------------------------------------
static DWORD WINAPI python_watch_dog_starter( LPVOID )
{
for(;;)
{
WaitForSingleObject( h_watch_dog_queued_event, INFINITE );
Sleep( 50 );
Py_AddPendingCall( python_watch_dog, NULL );
}
}
/* Routine passed to NewSndChannel -- schedule a call to SndCh_CallCallBack */
static pascal void
SndCh_UserRoutine(SndChannelPtr chan, SndCommand *cmd)
{
SndChannelObject *p = (SndChannelObject *)(chan->userInfo);
if (p->ob_callback != NULL) {
long A5 = SetA5(p->ob_A5);
p->ob_cmd = *cmd;
Py_AddPendingCall(SndCh_CallCallBack, (void *)p);
SetA5(A5);
}
}
static pascal void
SPB_completion(SPBPtr my_spb)
{
SPBObject *p = (SPBObject *)(my_spb->userLong);
if (p && p->ob_completion) {
long A5 = SetA5(p->ob_A5);
p->ob_thiscallback = p->ob_completion; /* Hope we cannot get two at the same time */
Py_AddPendingCall(SPB_CallCallBack, (void *)p);
SetA5(A5);
}
}
static void aio_completion_handler(sigval_t sigval)
{
Pyaio_cb *aio;
aio = (Pyaio_cb*) sigval.sival_ptr;
/* Hybrid Approach if Pending fails grab GIL do it directly */
if(Py_AddPendingCall(&_async_callback, aio) < 0) {
PyGILState_STATE state = PyGILState_Ensure();
_async_callback(aio);
PyGILState_Release(state);
}
return;
}
/*
* For GPDB Use: Hook function, called when current query is being cancelled
* (on e.g. SIGINT or SIGTERM)
*
* NB: This is called from a signal handler!
*/
void
PLy_handle_cancel_interrupt(void)
{
/*
* We can't do much in a signal handler, so just tell the Python
* interpreter to call us back when possible.
*
* We don't bother to check the return value, as there's nothing we could
* do if it fails for some reason.
*/
if (PLy_enter_python_intepreter)
(void) Py_AddPendingCall(PLy_python_cancel_handler, NULL);
if (prev_cancel_pending_hook)
prev_cancel_pending_hook();
}
static PyObject* MMSV2GUI_invokeLater(PyObject *self, PyObject *args)
{
PyObject* pObject = NULL;
if (!PyArg_ParseTuple(args, "O", &pObject))
return NULL;
if(Action_Check(pObject))
{
PyMMSAction* pAction = new PyMMSAction;
Py_INCREF(pObject);
pAction->pCallback = pObject;
Py_AddPendingCall(Py_MMS_InvokeLater, pAction);
Py_PulseActionEvent();
}
Py_INCREF(Py_None);
return Py_None;
}
void PythonEngine::abortScript()
{
Py_AddPendingCall(&scriptQuit, NULL);
}
