void CCONV CPhidget_free(void *arg)
{
CPhidgetHandle phid = (CPhidgetHandle)arg;
if (!phid)
return;
//Call device specific free function if it exists
if(phid->fptrFree)
phid->fptrFree(phid);
//this is only malloc-ed on windows and linux, not wince or mac
#if (defined(_WINDOWS) && !defined(WINCE)) || defined(_LINUX)
if (phid->CPhidgetFHandle) {
CPhidgetFHandle_free(phid->CPhidgetFHandle); phid->CPhidgetFHandle = NULL;
}
#endif
CThread_mutex_destroy(&phid->lock);
CThread_mutex_destroy(&phid->openCloseLock);
CThread_mutex_destroy(&phid->writelock);
CThread_mutex_destroy(&phid->outputLock);
CThread_destroy_event(&phid->writeAvailableEvent);
CThread_destroy_event(&phid->writtenEvent);
free(phid); phid = NULL;
return;
}
int CPhidgetDetachEvent(CPhidgetHandle phid) {
int result = 0;
CPhidgetList *trav = 0;
CPhidgetManagerList *trav2 = 0;
CPhidgetHandle travPhid = 0;
TESTPTR(phid)
CPhidget_clearStatusFlag(&phid->status, PHIDGET_ATTACHED_FLAG, NULL);
CPhidget_setStatusFlag(&phid->status, PHIDGET_DETACHING_FLAG, NULL);
for(trav2 = localPhidgetManagers; trav2; trav2 = trav2->next)
{
if (trav2->phidm->fptrDetachChange && trav2->phidm->state == PHIDGETMANAGER_ACTIVE)
trav2->phidm->fptrDetachChange((CPhidgetHandle)phid, trav2->phidm->fptrDetachChangeptr);
}
CPhidget_clearStatusFlag(&phid->status, PHIDGET_DETACHING_FLAG, NULL);
CThread_mutex_lock(&activeDevicesLock);
for (trav=ActiveDevices; trav; trav = trav->next)
{
if((CPhidget_areExtraEqual(phid, trav->phid) && CPhidget_statusFlagIsSet(trav->phid->status, PHIDGET_ATTACHED_FLAG))
|| CPhidgetHandle_areEqual(phid, trav->phid))
{
CPhidget_setStatusFlag(&trav->phid->status, PHIDGET_DETACHING_FLAG, &trav->phid->lock);
if(trav->phid->specificDevice == 2)
trav->phid->specificDevice = 0;
trav->phid->writeStopFlag = PTRUE;
CThread_set_event(&trav->phid->writeAvailableEvent); //if it's waiting on this event - signal NOW
result = CUSBCloseHandle(trav->phid);
CThread_join(&trav->phid->writeThread);
CThread_join(&trav->phid->readThread);
//because trav can be freed during the detach call, don't use it in or after the call
travPhid = trav->phid;
CThread_mutex_unlock(&activeDevicesLock);
if (travPhid->fptrDetach)
travPhid->fptrDetach((CPhidgetHandle)travPhid, travPhid->fptrDetachptr);
travPhid->deviceIDSpec = 0;
CPhidgetFHandle_free(travPhid->CPhidgetFHandle);
travPhid->CPhidgetFHandle = NULL;
CPhidget_clearStatusFlag(&travPhid->status, PHIDGET_DETACHING_FLAG, &travPhid->lock);
CPhidget_clearStatusFlag(&travPhid->status, PHIDGET_USB_ERROR_FLAG, &travPhid->lock);
goto found_to_detach;
}
}
CThread_mutex_unlock(&activeDevicesLock);
found_to_detach:
result = CList_removeFromList((CListHandle *)&AttachedDevices, phid, CPhidget_areExtraEqual, TRUE, CPhidget_free);
return result;
}