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windows-nt/Source/XPSP1/NT/base/fs/hsm/engine/task/tskmgr.cpp

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/*++
<EFBFBD> 1998 Seagate Software, Inc. All rights reserved.
Module Name:
tskmgr.cpp
Abstract:
This class represents the HSM task manager
Author:
Cat Brant [cbrant] 6-Dec-1996
Revision History:
Incorporate demand recall queue support
- Ravisankar Pudipeddi [ravisp] 1-Oct-199
--*/
#include "stdafx.h"
#define WSB_TRACE_IS WSB_TRACE_BIT_HSMTSKMGR
#include "wsb.h"
#include "hsmconn.h"
#include "hsmeng.h"
#include "fsa.h"
#include "task.h"
#include "tskmgr.h"
#include "hsmWorkQ.h"
#include "engine.h"
#define MAX_WORK_QUEUE_TYPES 7
HRESULT
CHsmTskMgr::FinalConstruct(
void
)
/*++
Routine Description:
This method does some initialization of the object that is necessary
after construction.
Arguments:
None.
Return Value:
S_OK
Anything returned by CWsbCollectable::FinalConstruct().
--*/
{
HRESULT hr = S_OK;
WsbTraceIn(OLESTR("CHsmTskMgr::FinalConstruct"),OLESTR(""));
try {
int index = 0;
WsbAssertHr(CComObjectRoot::FinalConstruct());
m_pWorkQueues = 0;
m_NumWorkQueues = 0;
// Set up queue type info and set limits
m_nWorkQueueTypes = 0;
m_pWorkQueueTypeInfo = static_cast<PHSM_WORK_QUEUE_TYPE_INFO>
(WsbAlloc(MAX_WORK_QUEUE_TYPES *
sizeof(HSM_WORK_QUEUE_TYPE_INFO)));
WsbAffirmPointer(m_pWorkQueueTypeInfo);
// Migrate queues
WsbAffirm(index < MAX_WORK_QUEUE_TYPES, WSB_E_INVALID_DATA);
m_pWorkQueueTypeInfo[index].Type = HSM_WORK_TYPE_FSA_MIGRATE;
m_pWorkQueueTypeInfo[index].MaxActiveAllowed = 1; // For Migrate, this is useless now
// - the limit is dynamically set
m_pWorkQueueTypeInfo[index].NumActive = 0;
index++;
// Recall queues
WsbAffirm(index < MAX_WORK_QUEUE_TYPES, WSB_E_INVALID_DATA);
m_pWorkQueueTypeInfo[index].Type = HSM_WORK_TYPE_FSA_RECALL;
m_pWorkQueueTypeInfo[index].MaxActiveAllowed = 1;
m_pWorkQueueTypeInfo[index].NumActive = 0;
index++;
// Demand Recall queues
WsbAffirm(index < MAX_WORK_QUEUE_TYPES, WSB_E_INVALID_DATA);
m_pWorkQueueTypeInfo[index].Type = HSM_WORK_TYPE_FSA_DEMAND_RECALL;
//
// MaxActiveAllowed is irrelevant for demand recall queues
// as it is computed afresh
//
m_pWorkQueueTypeInfo[index].MaxActiveAllowed = 1;
m_pWorkQueueTypeInfo[index].NumActive = 0;
index++;
// Validate queues
WsbAffirm(index < MAX_WORK_QUEUE_TYPES, WSB_E_INVALID_DATA);
m_pWorkQueueTypeInfo[index].Type = HSM_WORK_TYPE_FSA_VALIDATE;
m_pWorkQueueTypeInfo[index].MaxActiveAllowed = 2;
m_pWorkQueueTypeInfo[index].NumActive = 0;
index++;
// Validate_for_truncate queues. MaxActiveAllowed is essentially
// unlimited because this is the type of queue that the FSA's
// auto-truncator creates. Because there is one queue for each managed
// volume and these queues never go away, we can't limit the number
// or we will create problems. The Truncate job also
// creates this type of queue which means that type of job is not
// limited by this mechanism, but that's the way it goes.
WsbAffirm(index < MAX_WORK_QUEUE_TYPES, WSB_E_INVALID_DATA);
m_pWorkQueueTypeInfo[index].Type = HSM_WORK_TYPE_FSA_VALIDATE_FOR_TRUNCATE;
m_pWorkQueueTypeInfo[index].MaxActiveAllowed = 99999;
m_pWorkQueueTypeInfo[index].NumActive = 0;
index++;
m_nWorkQueueTypes = index;
}WsbCatch(hr);
WsbTraceOut(OLESTR("CHsmTskMgr::FinalConstruct"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::FinalRelease(
void
)
/*++
Routine Description:
This method does some clean up of the object that is necessary
before destruction.
Arguments:
None.
Return Value:
S_OK
Anything returned by CWsbCollection::FinalRelease().
--*/
{
HRESULT hr = S_OK;
HSM_SYSTEM_STATE SysState;
WsbTraceIn(OLESTR("CHsmTskMgr::FinalRelease"),OLESTR(""));
SysState.State = HSM_STATE_SHUTDOWN;
ChangeSysState(&SysState);
CComObjectRoot::FinalRelease();
// Free member resources
if (0 != m_pWorkQueues) {
WsbFree(m_pWorkQueues);
m_pWorkQueues = NULL;
}
if (m_pWorkQueueTypeInfo) {
WsbFree(m_pWorkQueueTypeInfo);
m_pWorkQueueTypeInfo = NULL;
}
m_nWorkQueueTypes = 0;
DeleteCriticalSection(&m_WorkQueueLock);
DeleteCriticalSection(&m_CurrentRunningLock);
DeleteCriticalSection(&m_CreateWorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::FinalRelease"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::Init(
IUnknown *pServer
)
/*++
Routine Description:
This method does some initialization of the object that is necessary
after construction.
Arguments:
None.
Return Value:
S_OK
--*/
{
HRESULT hr = S_OK;
WsbTraceIn(OLESTR("CHsmTskMgr::Init"),OLESTR(""));
try {
// Initialize critical sections
InitializeCriticalSectionAndSpinCount (&m_WorkQueueLock, 1000);
InitializeCriticalSectionAndSpinCount (&m_CurrentRunningLock, 1000);
InitializeCriticalSectionAndSpinCount (&m_CreateWorkQueueLock, 1000);
//
// Get the server interface
//
WsbAffirmHr(pServer->QueryInterface(IID_IHsmServer, (void **)&m_pServer));
//We want a weak link to the server so decrement the reference count
m_pServer->Release();
WsbAffirmHr(m_pServer->QueryInterface(IID_IWsbCreateLocalObject, (void **)&m_pHsmServerCreate));
// We want a weak link to the server so decrement the reference count
m_pHsmServerCreate->Release();
// Go ahead and preallocate some space for the work queues
WsbAffirmHr(IncreaseWorkQueueArraySize(HsmWorkQueueArrayBumpSize));
}WsbCatch( hr );
WsbTraceOut(OLESTR("CHsmTskMgr::Init"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return( hr );
}
HRESULT
CHsmTskMgr::ContactOk(
void
)
/*++
Routine Description:
This allows the caller to see if the RPC connection
to the task manager is OK
Arguments:
None.
Return Value:
S_OK
--*/
{
return( S_OK );
}
HRESULT
CHsmTskMgr::DoFsaWork(
IFsaPostIt *pFsaWorkItem
)
/*++
Implements:
IHsmFsaTskMgr::DoFsaWork
--*/
{
HRESULT hr = S_OK;
CComPtr<IHsmSession> pSession;
CComPtr<IHsmWorkQueue> pWorkQueue;
CComPtr<IHsmRecallQueue> pRecallQueue;
FSA_REQUEST_ACTION workAction;
GUID mediaId;
LONGLONG dataSetStart;
WsbTraceIn(OLESTR("CHsmTskMgr::DoFsaWork"),OLESTR(""));
try {
CWsbStringPtr path;
LONGLONG fileVersionId;
FSA_PLACEHOLDER placeholder;
GUID hsmId, bagId;
BOOL bCreated;
// Get the version Id from the work Item.
WsbAffirmHr(pFsaWorkItem->GetFileVersionId(&fileVersionId));
// Get the placeholder from the work item
WsbAffirmHr(pFsaWorkItem->GetPlaceholder(&placeholder));
// Get the HSM ID from the server
WsbAffirmHr(m_pServer->GetID(&hsmId));
//
// Make sure this instance of the engine managed the file
//
if ((GUID_NULL != placeholder.hsmId) && (hsmId != placeholder.hsmId)) {
CWsbStringPtr path;
(void)pFsaWorkItem->GetPath(&path, 0);
hr = HSM_E_FILE_MANAGED_BY_DIFFERENT_HSM;
WsbLogEvent(HSM_MESSAGE_FILE_MANAGED_BY_DIFFERENT_HSM, 0, NULL, WsbAbbreviatePath(path, 120), WsbHrAsString(hr), NULL);
WsbThrow(hr);
}
//
// Make sure there is a work allocater for this session
//
WsbAffirmHr(pFsaWorkItem->GetPath(&path, 0));
WsbAffirmHr(pFsaWorkItem->GetSession(&pSession));
WsbAffirmHr(pFsaWorkItem->GetRequestAction(&workAction));
WsbTrace(OLESTR("CHsmTskMgr::DoFsaWork for <%ls> for <%lu>.\n"), (WCHAR *)path, workAction);
if ((workAction == FSA_REQUEST_ACTION_FILTER_RECALL) ||
(workAction == FSA_REQUEST_ACTION_FILTER_READ)) {
WsbAffirmHr(FindRecallMediaToUse(pFsaWorkItem, &mediaId, &bagId, &dataSetStart));
WsbAffirmHr(AddToRecallQueueForFsaSession(pSession,&pRecallQueue, &bCreated, &mediaId, &bagId, dataSetStart, pFsaWorkItem));
} else {
WsbAffirmHr(EnsureQueueForFsaSession(pSession, workAction, &pWorkQueue, &bCreated));
//
// Give the work to a queue
//
WsbAffirmHr(pWorkQueue->Add(pFsaWorkItem));
}
//
// Start any queues that qualify (performance: only when a new queue is created)
//
if (bCreated) {
WsbAffirmHr(StartQueues());
}
}WsbCatch (hr);
WsbTraceOut(OLESTR("CHsmTskMgr::DoFsaWork"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::EnsureQueueForFsaSession(
IN IHsmSession *pSession,
IN FSA_REQUEST_ACTION fsaAction,
OUT IHsmWorkQueue **ppWorkQueue,
OUT BOOL *bCreated
)
/*++
--*/
{
HRESULT hr = S_OK;
HSM_WORK_QUEUE_STATE state;
ULONG index;
CComPtr<IHsmSession> l_pSession;
HSM_WORK_QUEUE_TYPE type1=HSM_WORK_TYPE_NONE;
HSM_WORK_QUEUE_TYPE type2;
FILETIME birthDate;
SYSTEMTIME systemTime;
GUID sessionGuid;
WsbTraceIn(OLESTR("CHsmTskMgr::EnsureQueueForFsaSession"),OLESTR("FsaRequestAction = <%lu>, Waiting on CreateWorkQueueLock"), fsaAction);
EnterCriticalSection(&m_CreateWorkQueueLock);
try {
WsbAffirm(0 != ppWorkQueue, E_POINTER);
// Convert FSA action to work queue type
switch (fsaAction) {
case FSA_REQUEST_ACTION_FILTER_READ:
case FSA_REQUEST_ACTION_FILTER_RECALL:
//
// Should not happen!! AddToRecallQueueForFsaSession is the
// right interface for recall items
//
WsbThrow(E_INVALIDARG);
break;
case FSA_REQUEST_ACTION_RECALL:
type1 = HSM_WORK_TYPE_FSA_RECALL;
break;
case FSA_REQUEST_ACTION_PREMIGRATE:
type1 = HSM_WORK_TYPE_FSA_MIGRATE;
break;
case FSA_REQUEST_ACTION_VALIDATE:
type1 = HSM_WORK_TYPE_FSA_VALIDATE;
break;
case FSA_REQUEST_ACTION_VALIDATE_FOR_TRUNCATE:
type1 = HSM_WORK_TYPE_FSA_VALIDATE_FOR_TRUNCATE;
break;
default:
hr = E_NOTIMPL;
type1 = HSM_WORK_TYPE_NONE;
break;
}
WsbTrace(OLESTR("CHsmTskMgr::EnsureQueueForFsaSession: type1 = %d\n"),
static_cast<int>(type1));
// Check the array of work queues and see if there is one for
// this session.
*bCreated = FALSE;
hr = FindWorkQueueElement(pSession, type1, &index, NULL);
if (hr == S_OK) {
WsbAffirmHr(GetWorkQueueElement(index, &l_pSession, ppWorkQueue, &type2, &state, &birthDate));
if ((l_pSession != pSession) || (type1 != type2)) {
*ppWorkQueue = 0;
WsbAssertHr(E_UNEXPECTED);
}
if (HSM_WORK_QUEUE_NONE == state) {
WsbTrace(OLESTR("CHsmTskMgr::EnsureQueueForFsaSession: Creating new queue (state is NONE)\n"));
WsbAffirmHr(m_pHsmServerCreate->CreateInstance(CLSID_CHsmWorkQueue, IID_IHsmWorkQueue,
(void **)ppWorkQueue));
WsbAffirmHr((*ppWorkQueue)->Init(m_pServer, pSession, (IHsmFsaTskMgr *)this, type1));
GetSystemTime(&systemTime);
WsbAffirmStatus(SystemTimeToFileTime(&systemTime, &birthDate));
WsbAffirmHr(pSession->GetIdentifier(&sessionGuid));
m_pWorkQueues[index].sessionId = sessionGuid;
WsbAffirmHr(SetWorkQueueElement(index, pSession, *ppWorkQueue, type1, HSM_WORK_QUEUE_IDLE, birthDate));
*bCreated = TRUE;
}
} else {
if (hr == WSB_E_NOTFOUND) {
hr = S_OK;
WsbTrace(OLESTR("CHsmTskMgr::EnsureQueueForFsaSession: Creating new queue (queue not found)\n"));
WsbAffirmHr(AddWorkQueueElement(pSession, type1, &index));
// The work queue has not been created so create it
WsbAffirmHr(m_pHsmServerCreate->CreateInstance(CLSID_CHsmWorkQueue, IID_IHsmWorkQueue,
(void **)ppWorkQueue));
WsbAffirmHr((*ppWorkQueue)->Init(m_pServer, pSession, (IHsmFsaTskMgr *)this, type1));
GetSystemTime(&systemTime);
WsbAffirmStatus(SystemTimeToFileTime(&systemTime, &birthDate));
WsbAffirmHr(pSession->GetIdentifier(&sessionGuid));
m_pWorkQueues[index].sessionId = sessionGuid;
WsbAffirmHr(SetWorkQueueElement(index, pSession, *ppWorkQueue, type1, HSM_WORK_QUEUE_IDLE, birthDate));
*bCreated = TRUE;
}
}
}WsbCatch( hr );
LeaveCriticalSection(&m_CreateWorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::EnsureQueueForFsaSession"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::AddToRecallQueueForFsaSession(
IN IHsmSession *pSession,
OUT IHsmRecallQueue **ppWorkQueue,
OUT BOOL *bCreated,
IN GUID *pMediaId,
IN GUID *pBagId,
IN LONGLONG dataSetStart,
IN IFsaPostIt *pFsaWorkItem
)
/*++
--*/
{
HRESULT hr = S_OK;
WsbTraceIn(OLESTR("CHsmTskMgr::AddToRecallQueueForFsaSession"),OLESTR("Waiting on CreateWorkQueueLock"));
EnterCriticalSection(&m_WorkQueueLock);
try {
WsbAffirm(0 != ppWorkQueue, E_POINTER);
//
// This call will find the queue if it's already present -
// and if not it will create a new queue and set it to the required media id
//
WsbAffirmHr(FindRecallQueueElement(pSession, pMediaId, ppWorkQueue, bCreated));
hr = (*ppWorkQueue)->Add(pFsaWorkItem,
pBagId,
dataSetStart);
}WsbCatch( hr );
LeaveCriticalSection(&m_WorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::AddToRecallQueueForFsaSession"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::IncreaseWorkQueueArraySize(
ULONG numToAdd
)
{
HRESULT hr = S_OK;
ULONG memSize;
LPVOID pTemp;
//Begin Critical Section
WsbTraceIn(OLESTR("CHsmTskMgr::IncreaseWorkQueueArraySize"),OLESTR("NumToAdd = %lu - Waiting for WorkQueueLock"), numToAdd);
EnterCriticalSection(&m_WorkQueueLock);
try {
memSize = (m_NumWorkQueues + numToAdd) * sizeof(HSM_WORK_QUEUES);
pTemp = WsbRealloc(m_pWorkQueues, memSize);
WsbAffirm(0 != pTemp, E_FAIL);
m_pWorkQueues = (HSM_WORK_QUEUES *) pTemp;
ZeroMemory( (m_pWorkQueues + m_NumWorkQueues), (numToAdd * sizeof(HSM_WORK_QUEUES))
);
m_NumWorkQueues += numToAdd;
}WsbCatch (hr);
//End Critical Section
LeaveCriticalSection(&m_WorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::IncreaseWorkQueueArraySize"),OLESTR("hr = <%ls>, QueuesInArray = <%lu>"),
WsbHrAsString(hr), m_NumWorkQueues);
return(hr);
}
HRESULT
CHsmTskMgr::WorkQueueDone(
IHsmSession *pSession,
HSM_WORK_QUEUE_TYPE type,
GUID *pMediaId
)
{
HRESULT hr = S_OK;
ULONG index;
FILETIME dummyTime;
IHsmRecallQueue *pRecallQueue;
BOOL locked = FALSE;
WsbTraceIn(OLESTR("CHsmTskMgr::WorkQueueDone"),OLESTR("type = %d"),
static_cast<int>(type));
try {
EnterCriticalSection(&m_WorkQueueLock);
locked = TRUE;
//
// Get the work queue index
//
hr = FindWorkQueueElement(pSession, type, &index, pMediaId);
if (hr == S_OK) {
WsbTrace(OLESTR("CHsmTskMgr::WorkQueueDone - ending queue # %lu\n"),
index);
ZeroMemory(&dummyTime, sizeof(FILETIME));
if (type == HSM_WORK_TYPE_FSA_DEMAND_RECALL) {
//
// It is possible for recall queues that an element was added
// just before we entered the critical section above
//
pRecallQueue = m_pWorkQueues[index].pRecallQueue;
if (pRecallQueue->IsEmpty() == S_OK) {
//
// Ok to destroy the queue
//
WsbAffirmHr(SetRecallQueueElement(index, 0, HSM_WORK_TYPE_NONE, HSM_WORK_QUEUE_NONE, dummyTime));
} else {
//
// We are not going to destroy the queue, since an element seems to have been added
// before we locked the work queues
//
hr = S_FALSE;
}
} else {
WsbAffirmHr(SetWorkQueueElement(index, 0, 0, HSM_WORK_TYPE_NONE, HSM_WORK_QUEUE_NONE, dummyTime));
}
LeaveCriticalSection(&m_WorkQueueLock);
locked = FALSE;
if (hr == S_OK) {
// Reduce active count for this work queue type
// It must protected from starting (activating) queues
EnterCriticalSection(&m_CurrentRunningLock);
for (ULONG i = 0; i < m_nWorkQueueTypes; i++) {
if (type == m_pWorkQueueTypeInfo[i].Type) {
if (m_pWorkQueueTypeInfo[i].NumActive > 0) {
m_pWorkQueueTypeInfo[i].NumActive--;
}
break;
}
}
LeaveCriticalSection(&m_CurrentRunningLock);
}
} else {
LeaveCriticalSection(&m_WorkQueueLock);
locked = FALSE;
WsbAffirmHr(hr);
}
if (hr == S_OK) {
//
// If there are any queues waiting to start, start them
//
WsbAffirmHr(StartQueues());
}
}WsbCatchAndDo (hr,
if (locked) {
LeaveCriticalSection(&m_WorkQueueLock);
locked = FALSE;
}
);
WsbTraceOut(OLESTR("CHsmTskMgr::WorkQueueDone"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::AddWorkQueueElement(
IHsmSession *pSession,
HSM_WORK_QUEUE_TYPE type,
ULONG *pIndex
)
{
HRESULT hr = S_OK;
BOOLEAN foundOne = FALSE;
WsbTraceIn(OLESTR("CHsmTskMgr::AddWorkQueueElement"),
OLESTR("type = %d, Waiting on WorkQueueLock"),
static_cast<int>(type));
//Begin Critical Section
EnterCriticalSection(&m_WorkQueueLock);
try {
WsbAssert(0 != pIndex, E_POINTER);
// Scan the array looking for an empty element
for (ULONG i = 0; ((i < m_NumWorkQueues) && (foundOne == FALSE)); i++) {
if (m_pWorkQueues[i].queueType == HSM_WORK_TYPE_NONE) {
foundOne = TRUE;
*pIndex = i;
if (type != HSM_WORK_TYPE_FSA_DEMAND_RECALL) {
//
// Stow away the session. For recall queues, the session
// is stored in the work item
//
m_pWorkQueues[i].pSession = pSession;
}
m_pWorkQueues[i].queueType = type;
}
}
if (foundOne == FALSE) {
// There are no empty elements so we need to add more
*pIndex = m_NumWorkQueues;
WsbAffirmHr(IncreaseWorkQueueArraySize(HsmWorkQueueArrayBumpSize));
if (type != HSM_WORK_TYPE_FSA_DEMAND_RECALL) {
//
// We store the session in the work-queue element itself..
// Just indicate this slot is taken..
//
m_pWorkQueues[*pIndex].pSession = pSession;
}
m_pWorkQueues[*pIndex].queueType = type;
}
}WsbCatch (hr);
//End Critical Section
LeaveCriticalSection(&m_WorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::AddWorkQueueElement"),
OLESTR("hr = <%ls>, index = %lu"),WsbHrAsString(hr), *pIndex);
return(hr);
}
HRESULT
CHsmTskMgr::FindWorkQueueElement(
IHsmSession *pSession,
HSM_WORK_QUEUE_TYPE type,
ULONG *pIndex,
GUID *pMediaId
)
{
HRESULT hr = S_OK;
BOOLEAN foundOne = FALSE;
GUID id;
WsbTraceIn(OLESTR("CHsmTskMgr::FindWorkQueueElement"),
OLESTR("type = %d, Waiting on WorkQueueLock"),
static_cast<int>(type));
//Begin Critical Section
EnterCriticalSection(&m_WorkQueueLock);
try {
WsbAssert(0 != pIndex, E_POINTER);
// Scan the array looking for an empty element
for (ULONG i = 0; ((i < m_NumWorkQueues) && (foundOne == FALSE)); i++) {
if (m_pWorkQueues[i].queueType == type) {
if (type == HSM_WORK_TYPE_FSA_DEMAND_RECALL) {
m_pWorkQueues[i].pRecallQueue->GetMediaId(&id);
if (WsbCompareGuid(id, *pMediaId) != 0) {
continue;
}
} else if (pSession != m_pWorkQueues[i].pSession) {
continue;
}
foundOne = TRUE;
*pIndex = i;
}
}
if (FALSE == foundOne) {
hr = WSB_E_NOTFOUND;
}
}WsbCatch (hr);
//End Critical Section
LeaveCriticalSection(&m_WorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::FindWorkQueueElement"),OLESTR("hr = <%ls>, index = <%ls>"),
WsbHrAsString(hr), WsbPtrToUlongAsString(pIndex));
return(hr);
}
HRESULT
CHsmTskMgr::FindRecallQueueElement(
IN IHsmSession *pSession,
IN GUID *pMediaId,
OUT IHsmRecallQueue **ppWorkQueue,
OUT BOOL *bCreated
)
{
HRESULT hr = S_OK;
BOOLEAN foundOne = FALSE;
GUID id;
FILETIME birthDate;
SYSTEMTIME systemTime;
ULONG index=0;
UNREFERENCED_PARAMETER(pSession);
//
// Important assumption: m_WorkQueueLock is held before calling this function
//
WsbTraceIn(OLESTR("CHsmTskMgr::FindRecallQueueElement"),
OLESTR("Waiting on WorkQueueLock"));
*bCreated = FALSE;
try {
for (ULONG i=0; (i < m_NumWorkQueues) && (foundOne == FALSE); i++) {
//
// Get the media id for the work queue
//
if (m_pWorkQueues[i].queueType == HSM_WORK_TYPE_FSA_DEMAND_RECALL) {
if (m_pWorkQueues[i].pRecallQueue != NULL) {
WsbAffirmHr(m_pWorkQueues[i].pRecallQueue->GetMediaId(&id));
if ((WsbCompareGuid(id, *pMediaId) == 0)) {
foundOne = TRUE;
index = i;
}
}
}
}
if (FALSE == foundOne) {
//
// No exisiting media queue was found. Make a new one
//
for (ULONG i = 0; ((i < m_NumWorkQueues) && (foundOne == FALSE)); i++) {
if (m_pWorkQueues[i].queueType == HSM_WORK_TYPE_NONE) {
foundOne = TRUE;
index = i;
}
}
if (foundOne == FALSE) {
// There are no empty elements so we need to add more
index = m_NumWorkQueues;
WsbAffirmHr(IncreaseWorkQueueArraySize(HsmWorkQueueArrayBumpSize));
}
//
// At this point we have the free slot index in index
// The work queue has not been created so create it
//
WsbAffirmHr(m_pHsmServerCreate->CreateInstance(CLSID_CHsmRecallQueue, IID_IHsmRecallQueue,
(void **)ppWorkQueue));
WsbAffirmHr((*ppWorkQueue)->SetMediaId(pMediaId));
WsbAffirmHr((*ppWorkQueue)->Init(m_pServer, (IHsmFsaTskMgr *)this));
GetSystemTime(&systemTime);
WsbAffirmStatus(SystemTimeToFileTime(&systemTime, &birthDate));
m_pWorkQueues[index].queueType = HSM_WORK_TYPE_FSA_DEMAND_RECALL;
m_pWorkQueues[index].pSession = NULL;
m_pWorkQueues[index].pRecallQueue = *ppWorkQueue;
m_pWorkQueues[index].queueState = HSM_WORK_QUEUE_IDLE;
m_pWorkQueues[index].birthDate = birthDate;
//
// Indicate a new queue was created
//
*bCreated = TRUE;
} else {
//
// Queue is already present, index points to it
//
*ppWorkQueue = m_pWorkQueues[index].pRecallQueue;
if (0 != *ppWorkQueue) {
//
// We need to AddRef it..
//
(*ppWorkQueue)->AddRef();
}
}
}WsbCatch (hr);
WsbTraceOut(OLESTR("CHsmTskMgr::FindRecallQueueElement"),OLESTR("hr = <%ls>, index = <%ls>"),
WsbHrAsString(hr), WsbLongAsString((LONG)index));
return(hr);
}
HRESULT
CHsmTskMgr::GetWorkQueueElement(
ULONG index,
IHsmSession **ppSession,
IHsmWorkQueue **ppWorkQueue,
HSM_WORK_QUEUE_TYPE *pType,
HSM_WORK_QUEUE_STATE *pState,
FILETIME *pBirthDate
)
{
HRESULT hr = S_OK;
WsbTraceIn(OLESTR("CHsmTskMgr::GetWorkQueueElement"),
OLESTR("index = %lu, Waiting on WorkQueueLock"), index);
//Begin Critical Section
EnterCriticalSection(&m_WorkQueueLock);
try {
*pType = m_pWorkQueues[index].queueType;
*ppSession = m_pWorkQueues[index].pSession;
if (0 != *ppSession) {
(*ppSession)->AddRef();
}
*ppWorkQueue = m_pWorkQueues[index].pWorkQueue;
if (0 != *ppWorkQueue) {
(*ppWorkQueue)->AddRef();
}
*pState = m_pWorkQueues[index].queueState;
*pBirthDate = m_pWorkQueues[index].birthDate;
}WsbCatch (hr);
//End Critical Section
LeaveCriticalSection(&m_WorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::GetWorkQueueElement"),
OLESTR("hr = <%ls>, type = %d"),WsbHrAsString(hr),
static_cast<int>(*pType));
return(hr);
}
HRESULT
CHsmTskMgr::GetRecallQueueElement(
ULONG index,
IHsmRecallQueue **ppWorkQueue,
HSM_WORK_QUEUE_STATE *pState,
FILETIME *pBirthDate
)
{
HRESULT hr = S_OK;
WsbTraceIn(OLESTR("CHsmTskMgr::GetRecallQueueElement"),
OLESTR("index = %lu, Waiting on WorkQueueLock"), index);
//Begin Critical Section
EnterCriticalSection(&m_WorkQueueLock);
try {
WsbAffirm(m_pWorkQueues[index].queueType == HSM_WORK_TYPE_FSA_DEMAND_RECALL, E_INVALIDARG);
*ppWorkQueue = m_pWorkQueues[index].pRecallQueue;
if (0 != *ppWorkQueue) {
(*ppWorkQueue)->AddRef();
}
*pState = m_pWorkQueues[index].queueState;
*pBirthDate = m_pWorkQueues[index].birthDate;
}WsbCatch (hr);
//End Critical Section
LeaveCriticalSection(&m_WorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::GetRecallQueueElement"),
OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::SetWorkQueueElement(
ULONG index,
IHsmSession *pSession,
IHsmWorkQueue *pWorkQueue,
HSM_WORK_QUEUE_TYPE type,
HSM_WORK_QUEUE_STATE state,
FILETIME birthDate
)
{
HRESULT hr = S_OK;
WsbTraceIn(OLESTR("CHsmTskMgr::SetWorkQueueElement"),OLESTR("Waiting on WorkQueueLock"));
//Begin Critical Section
EnterCriticalSection(&m_WorkQueueLock);
try {
m_pWorkQueues[index].pSession = pSession;
m_pWorkQueues[index].pWorkQueue = pWorkQueue;
m_pWorkQueues[index].queueType = type;
m_pWorkQueues[index].queueState = state;
m_pWorkQueues[index].birthDate = birthDate;
}WsbCatch (hr);
//End Critical Section
LeaveCriticalSection(&m_WorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::SetWorkQueueElement"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::SetRecallQueueElement(
ULONG index,
IHsmRecallQueue *pWorkQueue,
HSM_WORK_QUEUE_TYPE queueType,
HSM_WORK_QUEUE_STATE state,
FILETIME birthDate
)
{
HRESULT hr = S_OK;
WsbTraceIn(OLESTR("CHsmTskMgr::SetWorkQueueElement"),OLESTR("Waiting on WorkQueueLock"));
//Begin Critical Section
EnterCriticalSection(&m_WorkQueueLock);
try {
WsbAffirm(m_pWorkQueues[index].queueType == HSM_WORK_TYPE_FSA_DEMAND_RECALL, E_INVALIDARG);
//
// Ensure the session pointer is empty, this is unused for recall queues
//
m_pWorkQueues[index].pSession = NULL;
m_pWorkQueues[index].queueType = queueType;
m_pWorkQueues[index].pRecallQueue = pWorkQueue;
m_pWorkQueues[index].queueState = state;
m_pWorkQueues[index].birthDate = birthDate;
}WsbCatch (hr);
//End Critical Section
LeaveCriticalSection(&m_WorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::SetWorkQueueElement"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::RemoveWorkQueueElement(
ULONG index
)
{
HRESULT hr = S_OK;
WsbTraceIn(OLESTR("CHsmTskMgr::RemoveWorkQueueElement"),OLESTR("Waiting on WorkQueueLock"));
//Begin Critical Section
EnterCriticalSection(&m_WorkQueueLock);
try {
m_pWorkQueues[index].pSession = 0;
m_pWorkQueues[index].pWorkQueue = 0;
m_pWorkQueues[index].queueType = HSM_WORK_TYPE_NONE;
m_pWorkQueues[index].queueState = HSM_WORK_QUEUE_NONE;
ZeroMemory(&(m_pWorkQueues[index].birthDate), sizeof(FILETIME));
}WsbCatch (hr);
//End Critical Section
LeaveCriticalSection(&m_WorkQueueLock);
WsbTraceOut(OLESTR("CHsmTskMgr::RemoveWorkQueueElement"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::StartQueues( void )
{
HRESULT hr = S_OK;
ULONG uActive;
WsbTraceIn(OLESTR("CHsmTskMgr::StartQueues"),OLESTR("Waiting on CurrentRunningLock"));
//Begin Critical Section
EnterCriticalSection(&m_CurrentRunningLock);
try {
// Go over work types, and start (activate) queues until the threshold
// for the work type is reached
for (ULONG i = 0; i < m_nWorkQueueTypes; i++) {
// For Migrate queues, get the (dynamically set) Allowed limit
if ((HSM_WORK_TYPE_FSA_MIGRATE == m_pWorkQueueTypeInfo[i].Type) ||
(HSM_WORK_TYPE_FSA_DEMAND_RECALL == m_pWorkQueueTypeInfo[i].Type)) {
WsbAffirmHr(m_pServer->GetCopyFilesLimit( &(m_pWorkQueueTypeInfo[i].MaxActiveAllowed) ));
}
WsbTrace(OLESTR("CHsmTskMgr::StartQueues: QueueType[%lu].NumActive = %lu, Allowed = %lu\n"),
i, m_pWorkQueueTypeInfo[i].NumActive,
m_pWorkQueueTypeInfo[i].MaxActiveAllowed);
while ((uActive = m_pWorkQueueTypeInfo[i].NumActive) <
m_pWorkQueueTypeInfo[i].MaxActiveAllowed) {
WsbAffirmHr(StartFsaQueueType(m_pWorkQueueTypeInfo[i].Type));
if (uActive == m_pWorkQueueTypeInfo[i].NumActive) {
// no more work queues to activate - get out...
break;
}
}
}
}WsbCatch (hr);
//End Critical Section
LeaveCriticalSection(&m_CurrentRunningLock);
WsbTraceOut(OLESTR("CHsmTskMgr::StartQueues"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::StartFsaQueueType(HSM_WORK_QUEUE_TYPE type)
{
HRESULT hr = S_OK;
CComPtr<IHsmWorkQueue> pWorkQueue;
CComPtr<IHsmRecallQueue> pRecallQueue;
ULONG index;
WsbTraceIn(OLESTR("CHsmTskMgr::StartFsaQueueType"),OLESTR("type = %d"),
static_cast<int>(type));
try {
// Find the oldest queue of this type
hr = FindOldestQueue(type, &index);
if (S_OK == hr) {
HSM_WORK_QUEUE_STATE state;
CComPtr<IHsmSession> l_pSession;
HSM_WORK_QUEUE_TYPE l_type;
FILETIME birthDate;
// Make sure that the queue is idle
if (type == HSM_WORK_TYPE_FSA_DEMAND_RECALL) {
WsbAffirmHr(GetRecallQueueElement(index, &pRecallQueue, &state, &birthDate));
} else {
WsbAffirmHr(GetWorkQueueElement(index, &l_pSession, &pWorkQueue,
&l_type, &state, &birthDate));
}
if (HSM_WORK_QUEUE_IDLE == state) {
if (type == HSM_WORK_TYPE_FSA_DEMAND_RECALL) {
WsbAffirmHr(SetRecallQueueElement(index, pRecallQueue,
HSM_WORK_TYPE_FSA_DEMAND_RECALL,
HSM_WORK_QUEUE_STARTING, birthDate));
WsbAffirmHr(pRecallQueue->Start());
WsbAffirmHr(SetRecallQueueElement(index, pRecallQueue,
HSM_WORK_TYPE_FSA_DEMAND_RECALL,
HSM_WORK_QUEUE_STARTED, birthDate));
} else {
WsbAffirmHr(SetWorkQueueElement(index, l_pSession, pWorkQueue,
type, HSM_WORK_QUEUE_STARTING, birthDate));
WsbAffirmHr(pWorkQueue->Start());
WsbAffirmHr(SetWorkQueueElement(index, l_pSession, pWorkQueue,
type, HSM_WORK_QUEUE_STARTED, birthDate));
}
WsbTrace(OLESTR("CHsmTskMgr::StartFsaQueueType - started work queue %lu\n"),
index);
// Increment active count for this work queue type
for (ULONG i = 0; i < m_nWorkQueueTypes; i++) {
if (type == m_pWorkQueueTypeInfo[i].Type) {
m_pWorkQueueTypeInfo[i].NumActive++;
break;
}
}
}
} else {
if (WSB_E_NOTFOUND == hr) {
hr = S_OK;
}
}
WsbAffirmHr( hr );
}WsbCatch (hr);
WsbTraceOut(OLESTR("CHsmTskMgr::StartFsaQueueType"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::FindOldestQueue(
HSM_WORK_QUEUE_TYPE type,
ULONG *pIndex
)
{
HRESULT hr = S_OK;
FILETIME oldestOne;
LONG compare;
ULONG oldestIndex = 0xFFFFFFFF;
BOOLEAN firstOne;
WsbTraceIn(OLESTR("CHsmTskMgr::FindOldestQueue"),OLESTR("type = %d"),
static_cast<int>(type));
try {
WsbAffirmPointer(pIndex);
// Start out with the first time flag equal to TRUE so we select the first one with the right state and type
firstOne = TRUE;
for (ULONG i = 0; (i < m_NumWorkQueues); i++) {
if ((type == m_pWorkQueues[i].queueType) && (HSM_WORK_QUEUE_IDLE == m_pWorkQueues[i].queueState)) {
if (!firstOne)
compare = CompareFileTime(&(m_pWorkQueues[i].birthDate), &(oldestOne));
else
compare = -1;
if (compare < 0) {
// found an older one
firstOne = FALSE;
oldestOne.dwLowDateTime = m_pWorkQueues[i].birthDate.dwLowDateTime;
oldestOne.dwHighDateTime = m_pWorkQueues[i].birthDate.dwHighDateTime;
oldestIndex = i;
}
}
}
if (0xFFFFFFFF == oldestIndex) {
// Didn't find a match
hr = WSB_E_NOTFOUND;
} else {
HSM_WORK_QUEUE_STATE state;
CComPtr<IHsmSession> l_pSession;
CComPtr<IHsmWorkQueue> l_pWorkQueue;
CComPtr<IHsmRecallQueue> l_pRecallQueue;
HSM_WORK_QUEUE_TYPE type2;
FILETIME birthDate;
// Make sure that the queue is idle
if (type == HSM_WORK_TYPE_FSA_DEMAND_RECALL) {
WsbAffirmHr(GetRecallQueueElement(oldestIndex, &l_pRecallQueue, &state, &birthDate));
} else {
WsbAffirmHr(GetWorkQueueElement(oldestIndex, &l_pSession, &l_pWorkQueue, &type2, &state, &birthDate));
}
if (HSM_WORK_QUEUE_IDLE == state) {
*pIndex = oldestIndex;
WsbTrace(OLESTR("CHsmTskMgr::FindOldestQueue: found index = %lu\n"),
oldestIndex);
} else {
WsbTrace(OLESTR("CHsmTskMgr::FindOldestQueue - found NULL queue\n"));
hr = WSB_E_NOTFOUND;
}
}
}WsbCatch (hr);
WsbTraceOut(OLESTR("CHsmTskMgr::FindOldestQueue"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::ChangeSysState(
IN OUT HSM_SYSTEM_STATE* pSysState
)
/*++
Implements:
IHsmSystemState::ChangeSysState().
--*/
{
HRESULT hr = S_OK;
WsbTraceIn(OLESTR("CHsmTskMgr::ChangeSysState"), OLESTR(""));
try {
// Loop over work queues
if (0 != m_pWorkQueues) {
FILETIME dummyTime;
ZeroMemory(&dummyTime, sizeof(FILETIME));
for (ULONG i = 0; i < m_NumWorkQueues; i++) {
if (m_pWorkQueues[i].pWorkQueue) {
if (m_pWorkQueues[i].queueType == HSM_WORK_TYPE_FSA_DEMAND_RECALL) {
if (pSysState->State & HSM_STATE_SHUTDOWN) {
m_pWorkQueues[i].pRecallQueue->Stop();
}
m_pWorkQueues[i].pRecallQueue->ChangeSysState(pSysState);
} else {
if (pSysState->State & HSM_STATE_SHUTDOWN) {
m_pWorkQueues[i].pWorkQueue->Stop();
}
m_pWorkQueues[i].pWorkQueue->ChangeSysState(pSysState);
}
}
if (pSysState->State & HSM_STATE_SHUTDOWN) {
hr = SetWorkQueueElement(i, 0, 0, HSM_WORK_TYPE_NONE, HSM_WORK_QUEUE_NONE, dummyTime);
}
}
}
}WsbCatch(hr);
WsbTraceOut(OLESTR("CHsmTskMgr::ChangeSysState"), OLESTR("hr = <%ls>"), WsbHrAsString(hr));
return(hr);
}
HRESULT
CHsmTskMgr::FindRecallMediaToUse(
IN IFsaPostIt *pFsaWorkItem,
OUT GUID *pMediaToUse,
OUT GUID *pBagId,
OUT LONGLONG *pDataSetStart
)
/*++
--*/
{
HRESULT hr = S_OK;
CComQIPtr<ISegDb, &IID_ISegDb> pSegDb;
CComPtr<IWsbDb> pWsbDb;
CComPtr<IWsbDbSession> pDbWorkSession;
BOOL openedDb = FALSE;
WsbTraceIn(OLESTR("CHsmTskMgr::FindRecallMediaToUse"),OLESTR(""));
try {
WsbAssert(pMediaToUse != 0, E_POINTER);
*pMediaToUse = GUID_NULL;
CComPtr<ISegRec> pSegRec;
GUID l_BagId;
LONGLONG l_FileStart;
LONGLONG l_FileSize;
USHORT l_SegFlags;
GUID l_PrimPos;
LONGLONG l_SecPos;
GUID storagePoolId;
FSA_PLACEHOLDER placeholder;
//
// Get the segment database
//
WsbAffirmHr(m_pServer->GetSegmentDb(&pWsbDb));
pSegDb = pWsbDb;
//
// Go to the segment database to find out where the data
// is located.
//
WsbAffirmHr(pFsaWorkItem->GetPlaceholder(&placeholder));
WsbAffirmHr(pFsaWorkItem->GetStoragePoolId(&storagePoolId));
WsbTrace(OLESTR("Finding SegmentRecord: <%ls>, <%ls>, <%ls>\n"),
WsbGuidAsString(placeholder.bagId),
WsbStringCopy(WsbLonglongAsString(placeholder.fileStart)),
WsbStringCopy(WsbLonglongAsString(placeholder.fileSize)));
WsbAffirmHr(pSegDb->Open(&pDbWorkSession));
openedDb = TRUE;
hr = pSegDb->SegFind(pDbWorkSession, placeholder.bagId, placeholder.fileStart,
placeholder.fileSize, &pSegRec);
if (S_OK != hr) {
//
// We couldn't find the segment record for this information!
//
hr = HSM_E_SEGMENT_INFO_NOT_FOUND;
WsbAffirmHr(hr);
}
WsbAffirmHr(pSegRec->GetSegmentRecord(&l_BagId, &l_FileStart, &l_FileSize, &l_SegFlags,
&l_PrimPos, &l_SecPos));
WsbAssert(0 != l_SecPos, HSM_E_BAD_SEGMENT_INFORMATION);
//
// In case of an indirect record, go to the dirtect record to get real location info
//
if (l_SegFlags & SEG_REC_INDIRECT_RECORD) {
pSegRec = 0;
WsbTrace(OLESTR("Finding indirect SegmentRecord: <%ls>, <%ls>, <%ls>\n"),
WsbGuidAsString(l_PrimPos), WsbStringCopy(WsbLonglongAsString(l_SecPos)),
WsbStringCopy(WsbLonglongAsString(placeholder.fileSize)));
hr = pSegDb->SegFind(pDbWorkSession, l_PrimPos, l_SecPos,
placeholder.fileSize, &pSegRec);
if (S_OK != hr) {
//
// We couldn't find the direct segment record for this segment!
//
hr = HSM_E_SEGMENT_INFO_NOT_FOUND;
WsbAffirmHr(hr);
}
WsbAffirmHr(pSegRec->GetSegmentRecord(&l_BagId, &l_FileStart, &l_FileSize, &l_SegFlags,
&l_PrimPos, &l_SecPos));
WsbAssert(0 != l_SecPos, HSM_E_BAD_SEGMENT_INFORMATION);
// Don't support a second indirection for now !!
WsbAssert(0 == (l_SegFlags & SEG_REC_INDIRECT_RECORD), HSM_E_BAD_SEGMENT_INFORMATION);
}
//
// Go to the media database to get the media ID
//
CComPtr<IMediaInfo> pMediaInfo;
GUID l_RmsMediaId;
WsbAffirmHr(pSegDb->GetEntity(pDbWorkSession, HSM_MEDIA_INFO_REC_TYPE, IID_IMediaInfo,
(void**)&pMediaInfo));
WsbAffirmHr(pMediaInfo->SetId(l_PrimPos));
hr = pMediaInfo->FindEQ();
if (S_OK != hr) {
hr = HSM_E_MEDIA_INFO_NOT_FOUND;
WsbAffirmHr(hr);
}
WsbAffirmHr(pMediaInfo->GetMediaSubsystemId(&l_RmsMediaId));
*pMediaToUse = l_RmsMediaId;
*pDataSetStart = l_SecPos;
*pBagId = l_BagId;
if (openedDb) {
pSegDb->Close(pDbWorkSession);
openedDb = FALSE;
}
}WsbCatchAndDo( hr,
if (openedDb){
pSegDb->Close(pDbWorkSession);}
) ;
WsbTraceOut(OLESTR("CHsmTskMgr::FindRecallMediaToUse"),OLESTR("hr = <%ls>"),WsbHrAsString(hr));
return(hr);
}
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