/*
* ======== STRM_Close ========
* Purpose:
* Close a stream opened with STRM_Open().
*/
DSP_STATUS STRM_Close(struct STRM_OBJECT *hStrm,
struct PROCESS_CONTEXT *pr_ctxt)
{
struct WMD_DRV_INTERFACE *pIntfFxns;
struct CHNL_INFO chnlInfo;
DSP_STATUS status = DSP_SOK;
HANDLE hSTRMRes;
DBC_Require(cRefs > 0);
GT_1trace(STRM_debugMask, GT_ENTER, "STRM_Close: hStrm: 0x%x\n", hStrm);
/* Have all buffers been reclaimed? If not, return
* DSP_EPENDING */
pIntfFxns = hStrm->hStrmMgr->pIntfFxns;
status = (*pIntfFxns->pfnChnlGetInfo) (hStrm->hChnl, &chnlInfo);
DBC_Assert(DSP_SUCCEEDED(status));
if (chnlInfo.cIOCs > 0 || chnlInfo.cIOReqs > 0)
status = DSP_EPENDING;
else
status = DeleteStrm(hStrm);
if (DSP_FAILED(status))
goto func_end;
if (DRV_GetSTRMResElement(hStrm, &hSTRMRes, pr_ctxt) !=
DSP_ENOTFOUND)
DRV_ProcRemoveSTRMResElement(hSTRMRes, pr_ctxt);
func_end:
DBC_Ensure(status == DSP_SOK || status == DSP_EHANDLE ||
status == DSP_EPENDING || status == DSP_EFAIL);
return status;
}
/*
* ======== STRM_Close ========
* Purpose:
* Close a stream opened with STRM_Open().
*/
DSP_STATUS STRM_Close(struct STRM_OBJECT *hStrm)
{
struct WMD_DRV_INTERFACE *pIntfFxns;
struct CHNL_INFO chnlInfo;
DSP_STATUS status = DSP_SOK;
#ifndef RES_CLEANUP_DISABLE
u32 hProcess;
HANDLE pCtxt = NULL;
HANDLE hDrvObject;
HANDLE hSTRMRes;
DSP_STATUS res_status = DSP_SOK;
#endif
DBC_Require(cRefs > 0);
GT_1trace(STRM_debugMask, GT_ENTER, "STRM_Close: hStrm: 0x%x\n", hStrm);
if (!MEM_IsValidHandle(hStrm, STRM_SIGNATURE)) {
status = DSP_EHANDLE;
} else {
/* Have all buffers been reclaimed? If not, return
* DSP_EPENDING */
pIntfFxns = hStrm->hStrmMgr->pIntfFxns;
status = (*pIntfFxns->pfnChnlGetInfo) (hStrm->hChnl, &chnlInfo);
DBC_Assert(DSP_SUCCEEDED(status));
if (chnlInfo.cIOCs > 0 || chnlInfo.cIOReqs > 0) {
status = DSP_EPENDING;
} else {
status = DeleteStrm(hStrm);
if (DSP_FAILED(status)) {
/* we already validated the handle. */
DBC_Assert(status != DSP_EHANDLE);
/* make sure we return a documented result */
status = DSP_EFAIL;
}
}
}
#ifndef RES_CLEANUP_DISABLE
if (DSP_FAILED(status))
goto func_end;
/* Update the node and stream resource status */
/* Return PID instead of process handle */
hProcess = current->pid;
res_status = CFG_GetObject((u32 *)&hDrvObject, REG_DRV_OBJECT);
if (DSP_FAILED(res_status))
goto func_end;
DRV_GetProcContext(hProcess, (struct DRV_OBJECT *)hDrvObject,
&pCtxt, NULL, 0);
if (pCtxt != NULL) {
if (DRV_GetSTRMResElement(hStrm, &hSTRMRes, pCtxt) !=
DSP_ENOTFOUND) {
DRV_ProcRemoveSTRMResElement(hSTRMRes, pCtxt);
}
}
func_end:
#endif
DBC_Ensure(status == DSP_SOK || status == DSP_EHANDLE ||
status == DSP_EPENDING || status == DSP_EFAIL);
return status;
}
