INLINE_FUNCTION tShbError ShbIpcStopSignalingNewData (
tShbInstance pShbInstance_p)
{
tShbMemInst* pShbMemInst;
tShbMemHeader* pShbMemHeader;
tShbError ShbError;
DEBUG_LVL_29_TRACE0("------->ShbIpcStopSignalingNewData\n");
if (pShbInstance_p == NULL)
{
return (kShbInvalidArg);
}
ShbError = kShbOk;
pShbMemInst = ShbIpcGetShbMemInst (pShbInstance_p);
pShbMemHeader = ShbIpcGetShbMemHeader (pShbMemInst);
DEBUG_LVL_26_TRACE2("ShbIpcStopSignalingNewData(%p) pfnSignHndlrNewData=%p\n", pShbInstance_p, pShbMemInst->m_pfnSigHndlrNewData);
if (pShbMemInst->m_pfnSigHndlrNewData != NULL)
{ // signal handler was set before
kthread_stop(pShbMemInst->m_tThreadNewDataId);
pShbMemInst->m_pfnSigHndlrNewData = NULL;
pShbMemInst->m_tThreadNewDataId = INVALID_ID;
}
return ShbError;
}
INLINE_FUNCTION tShbError ShbIpcStartSignalingNewData (
tShbInstance pShbInstance_p,
tSigHndlrNewData pfnSignalHandlerNewData_p,
tShbPriority ShbPriority_p)
{
tShbMemInst* pShbMemInst;
tShbMemHeader* pShbMemHeader;
tShbError ShbError;
DEBUG_LVL_29_TRACE0("------->ShbIpcStartSignalingNewData\n");
if ((pShbInstance_p == NULL) || (pfnSignalHandlerNewData_p == NULL))
{
return (kShbInvalidArg);
}
pShbMemInst = ShbIpcGetShbMemInst (pShbInstance_p);
pShbMemHeader = ShbIpcGetShbMemHeader (pShbMemInst);
ShbError = kShbOk;
if ((pShbMemInst->m_tThreadNewDataId != INVALID_ID)
|| (pShbMemInst->m_pfnSigHndlrNewData != NULL))
{
ShbError = kShbAlreadySignaling;
goto Exit;
}
DEBUG_LVL_26_TRACE2("ShbIpcStartSignalingNewData(%p) m_pfnSigHndlrNewData = %p\n", pShbInstance_p, pfnSignalHandlerNewData_p);
pShbMemInst->m_pfnSigHndlrNewData = pfnSignalHandlerNewData_p;
pShbMemHeader->m_fNewData = FALSE;
switch (ShbPriority_p)
{
case kShbPriorityLow:
pShbMemInst->m_lThreadNewDataNice = -2;
break;
case kShbPriorityNormal:
pShbMemInst->m_lThreadNewDataNice = -9;
break;
case kShbPriorityHigh:
pShbMemInst->m_lThreadNewDataNice = -20;
break;
}
//create thread for signalling new data
pShbMemInst->m_tThreadNewDataId = kthread_run(ShbIpcThreadSignalNewData,
pShbInstance_p,
"ShbND%p", pShbInstance_p);
Exit:
return ShbError;
}
INLINE_FUNCTION tShbError ShbIpcStartSignalingNewData (
tShbInstance pShbInstance_p,
tSigHndlrNewData pfnSignalHandlerNewData_p,
tShbPriority ShbPriority_p)
{
tShbMemInst* pShbMemInst;
tShbMemInst** ppShbMemInst;
tShbMemHeader* pShbMemHeader;
tShbError ShbError;
DEBUG_LVL_29_TRACE0("------->ShbIpcStartSignalingNewData\n");
if (ShbTgtIsInterruptContext())
{
return (kShbInterruptContextNotAllowed);
}
if ((pShbInstance_p == NULL) || (pfnSignalHandlerNewData_p == NULL))
{
return (kShbInvalidArg);
}
pShbMemInst = ShbIpcGetShbMemInst(pShbInstance_p);
pShbMemHeader = ShbIpcGetShbMemHeader(pShbMemInst);
ShbError = kShbOk;
if (pShbMemInst->m_pfnSigHndlrNewData != NULL)
{
ShbError = kShbAlreadySignaling;
goto Exit;
}
DEBUG_LVL_26_TRACE2("ShbIpcStartSignalingNewData(%p) m_pfnSigHndlrNewData = %p\n", pShbInstance_p, pfnSignalHandlerNewData_p);
pShbMemInst->m_pfnSigHndlrNewData = pfnSignalHandlerNewData_p;
pShbMemInst->m_PriorityNewData = ShbPriority_p;
pShbMemHeader->m_fNewData = FALSE;
// insert ShbMemInst into NewData process list
// higher priority entries first
ppShbMemInst = &pShbIpcProcessListNewDataFirst_g;
while (*ppShbMemInst != NULL)
{
if ((*ppShbMemInst)->m_PriorityNewData < pShbMemInst->m_PriorityNewData)
{
break;
}
ppShbMemInst = &(*ppShbMemInst)->m_pProcessListNewDataNext;
}
pShbMemInst->m_pProcessListNewDataNext = *ppShbMemInst;
*ppShbMemInst = pShbMemInst;
Exit:
return ShbError;
}
INLINE_FUNCTION tShbError ShbIpcStopSignalingNewData (
tShbInstance pShbInstance_p)
{
tShbMemInst* pShbMemInst;
tShbMemInst** ppShbMemInst;
tShbMemHeader* pShbMemHeader;
tShbError ShbError;
DEBUG_LVL_29_TRACE0("------->ShbIpcStopSignalingNewData\n");
if (ShbTgtIsInterruptContext())
{
return (kShbInterruptContextNotAllowed);
}
if (pShbInstance_p == NULL)
{
return (kShbInvalidArg);
}
ShbError = kShbOk;
pShbMemInst = ShbIpcGetShbMemInst (pShbInstance_p);
pShbMemHeader = ShbIpcGetShbMemHeader (pShbMemInst);
DEBUG_LVL_26_TRACE2("ShbIpcStopSignalingNewData(%p) pfnSignHndlrNewData=%p\n", pShbInstance_p, pShbMemInst->m_pfnSigHndlrNewData);
if (pShbMemInst->m_pfnSigHndlrNewData != NULL)
{ // signal handler was set before
// remove pShbMemInst from NewData process list
ShbError = kShbInvalidSigHndlr;
ppShbMemInst = &pShbIpcProcessListNewDataFirst_g;
while (*ppShbMemInst != NULL)
{
if (*ppShbMemInst == pShbMemInst)
{
*ppShbMemInst = pShbMemInst->m_pProcessListNewDataNext;
pShbMemInst->m_pProcessListNewDataNext = NULL;
pShbMemInst->m_pfnSigHndlrNewData = NULL;
if (ppShbIpcProcessListNewDataCurrent_g == &pShbMemInst->m_pProcessListNewDataNext)
{
ppShbIpcProcessListNewDataCurrent_g = ppShbMemInst;
}
ShbError = kShbOk;
break;
}
ppShbMemInst = &(*ppShbMemInst)->m_pProcessListNewDataNext;
}
}
return ShbError;
}