You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
743 lines
21 KiB
743 lines
21 KiB
/*++
|
|
|
|
Copyright (c) 1996 Microsoft Corporation
|
|
All rights reserved
|
|
|
|
Abstract:
|
|
|
|
This module provides functionality for ADs within spooler
|
|
|
|
Author:
|
|
|
|
Steve Wilson (NT) July 1997
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
|
|
#include <precomp.h>
|
|
#pragma hdrstop
|
|
|
|
#include "ds.hxx"
|
|
#include "dsprune.hxx"
|
|
|
|
|
|
RETRYLIST gRetry = {NULL, 0, NULL};
|
|
|
|
|
|
#define IADSPATH 0
|
|
#define IUNCNAME 1
|
|
#define ICN 2
|
|
#define IVERSION 3
|
|
#define ISERVER 4
|
|
#define IFLAGS 5
|
|
#define ADSPATH L"ADsPath"
|
|
#define CN L"CN"
|
|
|
|
PWSTR gpszAttributes[] = {ADSPATH, SPLDS_UNC_NAME, CN, SPLDS_VERSION_NUMBER, SPLDS_SERVER_NAME, SPLDS_FLAGS};
|
|
#define N_ATTRIBUTES COUNTOF(gpszAttributes)
|
|
|
|
#define SZ_NO_CACHE L",NoCache"
|
|
|
|
#define LOG_EVENT_ERROR_BUFFER_SIZE 11
|
|
|
|
DWORD
|
|
SpawnDsPrune(
|
|
DWORD dwDelay
|
|
)
|
|
{
|
|
DWORD dwError = ERROR_SUCCESS;
|
|
DWORD ThreadId;
|
|
HANDLE hDsPruneThread;
|
|
PDWORD pdwDelay;
|
|
|
|
if (pdwDelay = (PDWORD) AllocSplMem(sizeof(DWORD)))
|
|
*pdwDelay = dwDelay;
|
|
|
|
if(!(hDsPruneThread = CreateThread(NULL,
|
|
0,
|
|
(LPTHREAD_START_ROUTINE) DsPrune,
|
|
(PVOID) pdwDelay,
|
|
0,
|
|
&ThreadId))) {
|
|
dwError = GetLastError();
|
|
FreeSplMem(pdwDelay);
|
|
} else {
|
|
CloseHandle(hDsPruneThread);
|
|
dwError = ERROR_SUCCESS;
|
|
}
|
|
|
|
|
|
return dwError;
|
|
}
|
|
|
|
|
|
DWORD
|
|
WINAPI
|
|
DsPrune(
|
|
PDWORD pdwDelay
|
|
)
|
|
{
|
|
PWSTR *ppszMySites = NULL;
|
|
PWSTR pszDomainRoot = NULL;
|
|
ULONG cMySites;
|
|
DWORD dwRet;
|
|
HRESULT hr;
|
|
|
|
/*
|
|
1) Determine my site
|
|
2) Query for all PrintQueue objects in my domain
|
|
3) For each PrintQueue:
|
|
a) Get array of IP addresses
|
|
b) Pass IP addresses to DsAddressToSiteNames
|
|
c) If no site returned by DsAddressToSiteNames matches my site, goto 3
|
|
d) Delete PrintQueue if orphaned
|
|
*/
|
|
|
|
//
|
|
// Sleep random amount on startup so DCs aren't all pruning at the same time
|
|
//
|
|
if (pdwDelay) {
|
|
Sleep(*pdwDelay*ONE_MINUTE); // *pdwDelay is number of minutes
|
|
FreeSplMem(pdwDelay);
|
|
}
|
|
|
|
hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
|
|
if (FAILED(hr)) {
|
|
return HRESULT_CODE(hr);
|
|
}
|
|
//
|
|
// Determine my sites
|
|
//
|
|
dwRet = DsGetDcSiteCoverage(NULL, &cMySites, &ppszMySites);
|
|
if (dwRet != NO_ERROR)
|
|
goto error;
|
|
|
|
dwRet = GetDomainRoot(&pszDomainRoot);
|
|
if (dwRet != NERR_Success)
|
|
goto error;
|
|
|
|
while(1) {
|
|
|
|
PRUNINGPOLICIES PruningPolicies;
|
|
DWORD dwSleep, dwOriginalSleep;
|
|
|
|
PruningPolicies.dwPruneDownlevel = PruneDownlevel();
|
|
PruningPolicies.dwPruningRetries = PruningRetries();
|
|
PruningPolicies.dwPruningRetryLog = PruningRetryLog();
|
|
|
|
SetPruningPriority();
|
|
|
|
DeleteOrphans(ppszMySites, cMySites, pszDomainRoot, &PruningPolicies);
|
|
|
|
dwSleep = dwOriginalSleep = PruningInterval();
|
|
|
|
while (dwSleep > HOUR_OF_MINUTES) {
|
|
|
|
Sleep(ONE_HOUR); // Check interval every hour
|
|
|
|
DWORD dwNewSleep = PruningInterval();
|
|
|
|
if (dwNewSleep != dwOriginalSleep) {
|
|
dwSleep = dwOriginalSleep = dwNewSleep;
|
|
}
|
|
|
|
if (dwSleep != INFINITE && dwSleep > HOUR_OF_MINUTES)
|
|
dwSleep -= HOUR_OF_MINUTES;
|
|
}
|
|
Sleep(dwSleep*ONE_MINUTE);
|
|
}
|
|
|
|
|
|
error:
|
|
|
|
if (ppszMySites)
|
|
NetApiBufferFree(ppszMySites);
|
|
|
|
FreeSplMem(pszDomainRoot);
|
|
|
|
CoUninitialize();
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
|
|
|
|
HRESULT
|
|
DeleteOrphans(
|
|
PWSTR *ppszMySites,
|
|
ULONG cMySites,
|
|
PWSTR pszSearchRoot,
|
|
PRUNINGPOLICIES *pPruningPolicies
|
|
)
|
|
{
|
|
ADS_SEARCH_HANDLE hSearchHandle = NULL;
|
|
IDirectorySearch *pDSSearch = NULL;
|
|
HRESULT hr = S_OK;
|
|
WCHAR szSearchPattern[] = L"(objectCategory=printQueue)";
|
|
SEARCHCOLUMN Col[N_ATTRIBUTES];
|
|
DWORD i;
|
|
ADS_SEARCHPREF_INFO SearchPrefs;
|
|
DWORD dwError;
|
|
|
|
|
|
|
|
// Find all PrintQueues in domain
|
|
hr = ADsGetObject( pszSearchRoot,
|
|
IID_IDirectorySearch,
|
|
(void **)&pDSSearch);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
|
|
SearchPrefs.dwSearchPref = ADS_SEARCHPREF_PAGESIZE;
|
|
SearchPrefs.vValue.dwType = ADSTYPE_INTEGER;
|
|
SearchPrefs.vValue.Integer = 256;
|
|
|
|
hr = pDSSearch->SetSearchPreference(&SearchPrefs, 1);
|
|
if (FAILED(hr)) {
|
|
DBGMSG(DBG_WARNING, ("DSPrune: SetSearchPref failed: %d\n", hr));
|
|
} else if (hr != S_OK && SearchPrefs.dwStatus != ADS_STATUS_S_OK) {
|
|
DBGMSG(DBG_WARNING, ("DSPrune: SearchPref failed: %d\n", SearchPrefs.dwStatus));
|
|
}
|
|
|
|
hr = pDSSearch->ExecuteSearch(
|
|
szSearchPattern,
|
|
gpszAttributes,
|
|
N_ATTRIBUTES,
|
|
&hSearchHandle);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
hr = pDSSearch->GetNextRow(hSearchHandle);
|
|
//
|
|
// This is the new way of checking for rows in Whistler.
|
|
// see bug 163776. I expect to be changed in the future.
|
|
//
|
|
if (hr == S_ADS_NOMORE_ROWS) {
|
|
ADsGetLastError(&dwError, NULL, 0, NULL, 0);
|
|
if (dwError == ERROR_MORE_DATA) {
|
|
hr = pDSSearch->GetNextRow(hSearchHandle);
|
|
}
|
|
}
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
while (hr != S_ADS_NOMORE_ROWS) {
|
|
|
|
for (i = 0 ; i < N_ATTRIBUTES ; ++i)
|
|
Col[i].hr = pDSSearch->GetColumn(hSearchHandle, gpszAttributes[i], &Col[i].Column);
|
|
|
|
DeleteOrphan(ppszMySites, cMySites, Col, pPruningPolicies);
|
|
|
|
for (i = 0 ; i < N_ATTRIBUTES ; ++i)
|
|
if (SUCCEEDED(Col[i].hr))
|
|
pDSSearch->FreeColumn(&Col[i].Column);
|
|
|
|
hr = pDSSearch->GetNextRow(hSearchHandle);
|
|
//
|
|
// This is the new way of checking for rows in Whistler.
|
|
// see bug 163776. I expect to be changed in the future.
|
|
//
|
|
if (hr == S_ADS_NOMORE_ROWS) {
|
|
ADsGetLastError(&dwError, NULL, 0, NULL, 0);
|
|
if (dwError == ERROR_MORE_DATA) {
|
|
hr = pDSSearch->GetNextRow(hSearchHandle);
|
|
}
|
|
}
|
|
BAIL_ON_FAILURE(hr);
|
|
}
|
|
|
|
hr = S_OK;
|
|
|
|
|
|
error:
|
|
|
|
|
|
if (hSearchHandle)
|
|
pDSSearch->CloseSearchHandle(hSearchHandle);
|
|
|
|
if (pDSSearch)
|
|
pDSSearch->Release();
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
VOID
|
|
DeleteOrphan(
|
|
PWSTR *ppszMySites,
|
|
ULONG cMySites,
|
|
SEARCHCOLUMN Col[],
|
|
PRUNINGPOLICIES *pPruningPolicies
|
|
)
|
|
{
|
|
IADs *pADs = NULL;
|
|
IADsContainer *pContainer = NULL;
|
|
PWSTR pszParent = NULL;
|
|
PWSTR pszCommonName = NULL;
|
|
HANDLE hPrinter = NULL;
|
|
PWSTR pszServerName = NULL;
|
|
PWSTR pszEscapedCN = NULL;
|
|
PWSTR pszCN;
|
|
PWSTR pszADsPath;
|
|
PWSTR pszUNCName;
|
|
PWSTR pszServer;
|
|
DWORD dwError = ERROR_SUCCESS;
|
|
HRESULT hr;
|
|
DWORD dwVersion;
|
|
DWORD dwFlags;
|
|
BOOL bDeleteIt = FALSE;
|
|
BOOL bDeleteImmediately = FALSE;
|
|
WCHAR ErrorBuffer[LOG_EVENT_ERROR_BUFFER_SIZE];
|
|
|
|
pszADsPath = SUCCEEDED(Col[IADSPATH].hr) ? Col[IADSPATH].Column.pADsValues->DNString : NULL;
|
|
pszUNCName = SUCCEEDED(Col[IUNCNAME].hr) ? Col[IUNCNAME].Column.pADsValues->DNString : NULL;
|
|
pszServer = SUCCEEDED(Col[ISERVER].hr) ? Col[ISERVER].Column.pADsValues->DNString : NULL;
|
|
pszCN = SUCCEEDED(Col[ICN].hr) ? Col[ICN].Column.pADsValues->DNString : NULL;
|
|
dwVersion = SUCCEEDED(Col[IVERSION].hr) ? Col[IVERSION].Column.pADsValues->Integer : 0;
|
|
dwFlags = SUCCEEDED(Col[IFLAGS].hr) ? Col[IFLAGS].Column.pADsValues->Integer : 0;
|
|
|
|
//
|
|
// We should always have an ADsPath & CN, but if not, don't continue because there's
|
|
// no way to delete something if we don't know where it is.
|
|
//
|
|
if (!pszADsPath || !pszCN) {
|
|
DBGMSG(DBG_WARNING, ("DeleteOrphan: No ADs Path or CN!\n"));
|
|
return;
|
|
}
|
|
|
|
if (!(dwFlags & IMMORTAL)) {
|
|
if (!pszUNCName || !pszServer || FAILED(Col[IVERSION].hr)) {
|
|
bDeleteIt = bDeleteImmediately = TRUE;
|
|
|
|
SplLogEvent( pLocalIniSpooler,
|
|
LOG_INFO,
|
|
MSG_PRUNING_NOUNC_PRINTER,
|
|
FALSE,
|
|
pszADsPath,
|
|
NULL );
|
|
|
|
} else if ((dwVersion >= DS_PRINTQUEUE_VERSION_WIN2000 ||
|
|
pPruningPolicies->dwPruneDownlevel != PRUNE_DOWNLEVEL_NEVER) &&
|
|
UNC2Server(pszUNCName, &pszServerName) == ERROR_SUCCESS &&
|
|
ServerOnSite(ppszMySites, cMySites, pszServerName)) {
|
|
//
|
|
// Try to open the printer. If it doesn't exist, delete it!
|
|
//
|
|
PWSTR pszNoCacheUNCName = NULL;
|
|
|
|
if (ERROR_SUCCESS == StrCatAlloc((PCWSTR *)&pszNoCacheUNCName, pszUNCName, SZ_NO_CACHE, NULL)) {
|
|
|
|
DBGMSG(DBG_EXEC, ("DSPrune: Checking %ws\n", pszUNCName));
|
|
|
|
if (!OpenPrinter(pszNoCacheUNCName, &hPrinter, NULL)) {
|
|
dwError = GetLastError();
|
|
|
|
if (dwError != ERROR_ACCESS_DENIED &&
|
|
(dwVersion >= DS_PRINTQUEUE_VERSION_WIN2000 ||
|
|
pPruningPolicies->dwPruneDownlevel == PRUNE_DOWNLEVEL_AGGRESSIVELY ||
|
|
(pPruningPolicies->dwPruneDownlevel == PRUNE_DOWNLEVEL_NICELY && ServerExists(pszServerName)))) {
|
|
bDeleteIt = TRUE;
|
|
|
|
//
|
|
// Log an info event for each retry, if the policy is configured so.
|
|
//
|
|
if (pPruningPolicies->dwPruningRetryLog) {
|
|
StringCchPrintf(ErrorBuffer, COUNTOF(ErrorBuffer), L"%0x", dwError);
|
|
SplLogEvent( pLocalIniSpooler,
|
|
LOG_INFO,
|
|
MSG_PRUNING_ABSENT_PRINTER,
|
|
FALSE,
|
|
pszADsPath,
|
|
ErrorBuffer,
|
|
NULL );
|
|
}
|
|
|
|
}
|
|
} else if (dwVersion >= DS_PRINTQUEUE_VERSION_WIN2000) {
|
|
|
|
BYTE Data[256];
|
|
DWORD cbNeeded = 0;
|
|
BYTE *pData = Data;
|
|
BYTE bHaveData = TRUE;
|
|
|
|
// Verify that the printer should indeed be published and that
|
|
// the GUID of the published object matches the GUID on the print server.
|
|
// NOTE: The GUID check is needed because we may publish the same printer
|
|
// twice if the spooler is restarted and checks a DC before the first publish
|
|
// is replicated.
|
|
|
|
if (!GetPrinter(hPrinter, 7, Data, COUNTOF(Data), &cbNeeded)) {
|
|
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
|
|
//
|
|
// Forget this printer if alloc or second GetPrinter fails
|
|
//
|
|
pData = (PBYTE) AllocSplMem(cbNeeded);
|
|
if (pData) {
|
|
if (!GetPrinter(hPrinter, 7, pData, cbNeeded, &cbNeeded)) {
|
|
bHaveData = FALSE;
|
|
}
|
|
} else {
|
|
bHaveData = FALSE;
|
|
}
|
|
} else {
|
|
//
|
|
// A Win9x machine may have the same printer UNCName
|
|
//
|
|
bDeleteIt = TRUE;
|
|
bHaveData = FALSE;
|
|
}
|
|
}
|
|
|
|
if (bHaveData) {
|
|
if (!(((PPRINTER_INFO_7) pData)->dwAction & DSPRINT_PUBLISH)) {
|
|
bDeleteIt = bDeleteImmediately = TRUE;
|
|
|
|
SplLogEvent( pLocalIniSpooler,
|
|
LOG_INFO,
|
|
MSG_PRUNING_UNPUBLISHED_PRINTER,
|
|
FALSE,
|
|
pszADsPath,
|
|
NULL );
|
|
} else {
|
|
//
|
|
// Compare object GUID to printer's GUID
|
|
//
|
|
PWSTR pszObjectGUID = NULL;
|
|
|
|
hr = ADsGetObject(pszADsPath, IID_IADs, (void **) &pADs);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
hr = GetGUID(pADs, &pszObjectGUID);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
if (!((PPRINTER_INFO_7) pData)->pszObjectGUID ||
|
|
wcscmp(((PPRINTER_INFO_7) pData)->pszObjectGUID, pszObjectGUID)) {
|
|
bDeleteIt = bDeleteImmediately = TRUE;
|
|
|
|
SplLogEvent( pLocalIniSpooler,
|
|
LOG_INFO,
|
|
MSG_PRUNING_DUPLICATE_PRINTER,
|
|
FALSE,
|
|
pszADsPath,
|
|
NULL );
|
|
}
|
|
|
|
|
|
FreeSplStr(pszObjectGUID);
|
|
pADs->Release();
|
|
pADs = NULL;
|
|
}
|
|
}
|
|
|
|
if (pData != Data)
|
|
FreeSplMem(pData);
|
|
}
|
|
FreeSplMem(pszNoCacheUNCName);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Get PrintQueue object
|
|
hr = ADsGetObject(pszADsPath, IID_IADs, (void **) &pADs);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
if (bDeleteIt) {
|
|
|
|
//
|
|
// Delete the printqueue, but check retry count first
|
|
//
|
|
if (!bDeleteImmediately && !EnoughRetries(pADs, pPruningPolicies->dwPruningRetries))
|
|
goto error;
|
|
|
|
//
|
|
// Get the Parent ADsPath
|
|
//
|
|
hr = pADs->get_Parent(&pszParent);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
//
|
|
// Get the Parent object
|
|
//
|
|
hr = ADsGetObject( pszParent,
|
|
IID_IADsContainer,
|
|
(void **) &pContainer);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
//
|
|
// The CN string read from ExecuteSearch may have unescaped characters, so
|
|
// be sure to fix this before trying to delete
|
|
//
|
|
pszEscapedCN = CreateEscapedString(pszCN, DN_SPECIAL_CHARS);
|
|
if (!pszEscapedCN) {
|
|
hr = MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, GetLastError());
|
|
BAIL_ON_FAILURE(hr);
|
|
}
|
|
|
|
hr = HResultFromWin32(StrCatAlloc((PCWSTR *)&pszCommonName, L"CN=", pszEscapedCN, NULL));
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
hr = pContainer->Delete(SPLDS_PRINTER_CLASS, pszCommonName);
|
|
}
|
|
|
|
if (FAILED(hr)) {
|
|
StringCchPrintf(ErrorBuffer, COUNTOF(ErrorBuffer), L"%0x", hr);
|
|
SplLogEvent( pLocalIniSpooler,
|
|
LOG_ERROR,
|
|
MSG_CANT_PRUNE_PRINTER,
|
|
FALSE,
|
|
pszADsPath,
|
|
ErrorBuffer,
|
|
NULL );
|
|
DBGMSG(DBG_EXEC, ("DSPrune: Can't delete %ws. Error: %0x\n", pszUNCName, hr));
|
|
goto error;
|
|
}
|
|
|
|
SplLogEvent( pLocalIniSpooler,
|
|
LOG_INFO,
|
|
MSG_PRUNING_PRINTER,
|
|
FALSE,
|
|
pszADsPath,
|
|
NULL );
|
|
DBGMSG(DBG_EXEC, ("DSPrune: DELETING %ws\n", pszUNCName));
|
|
|
|
} else {
|
|
//
|
|
// Delete the Retry Entry (if any) if we aren't deleting it
|
|
//
|
|
DeleteRetryEntry(pADs);
|
|
}
|
|
|
|
|
|
error:
|
|
|
|
if (hPrinter)
|
|
ClosePrinter(hPrinter);
|
|
|
|
if (pADs)
|
|
pADs->Release();
|
|
|
|
if (pContainer)
|
|
pContainer->Release();
|
|
|
|
if (pszParent)
|
|
SysFreeString(pszParent);
|
|
|
|
FreeSplMem(pszCommonName);
|
|
FreeSplMem(pszEscapedCN);
|
|
FreeSplMem(pszServerName);
|
|
}
|
|
|
|
|
|
|
|
BOOL
|
|
EnoughRetries(
|
|
IADs *pADs,
|
|
DWORD dwPruningRetries
|
|
)
|
|
/*++
|
|
Function Description:
|
|
This function return TRUE if we have retry count is greater than retry policy, FALSE otherwise
|
|
|
|
Parameters:
|
|
pADs - pointer to the PrintQueue object
|
|
|
|
Return Values:
|
|
TRUE if retry count is greater than the policy setting for this object
|
|
FALSE if we can't get the GUID or entry doesn't exist and it can't be created (out of memory)
|
|
--*/
|
|
{
|
|
HRESULT hr = S_OK;
|
|
PWSTR pszObjectGUID = NULL;
|
|
PRETRYLIST pRetry = NULL;
|
|
BOOL bEnoughRetries = FALSE;
|
|
|
|
//
|
|
// Get the GUID
|
|
//
|
|
hr = GetGUID(pADs, &pszObjectGUID);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
//
|
|
// Get the entry
|
|
//
|
|
if (!(pRetry = GetRetry(pszObjectGUID))) {
|
|
hr = MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, GetLastError());
|
|
BAIL_ON_FAILURE(hr);
|
|
}
|
|
|
|
//
|
|
// Increment retry count if we're not done. Delete retry if we're done.
|
|
//
|
|
if (++pRetry->nRetries > dwPruningRetries) {
|
|
DeleteRetry(pRetry);
|
|
bEnoughRetries = TRUE;
|
|
}
|
|
|
|
error:
|
|
|
|
FreeSplStr(pszObjectGUID);
|
|
|
|
return bEnoughRetries;
|
|
}
|
|
|
|
|
|
VOID
|
|
DeleteRetryEntry(
|
|
IADs *pADs
|
|
)
|
|
/*++
|
|
Function Description:
|
|
This function removes a Retry entry based on the supplied ADs pointer
|
|
|
|
Parameters:
|
|
pADs - pointer to the PrintQueue object
|
|
|
|
Return Values:
|
|
none
|
|
--*/
|
|
{
|
|
HRESULT hr = S_OK;
|
|
PWSTR pszObjectGUID = NULL;
|
|
PRETRYLIST pRetry = NULL;
|
|
|
|
//
|
|
// Get the GUID
|
|
//
|
|
hr = GetGUID(pADs, &pszObjectGUID);
|
|
BAIL_ON_FAILURE(hr);
|
|
|
|
//
|
|
// Get & Delete the entry
|
|
//
|
|
if (pRetry = FindRetry(pszObjectGUID)) {
|
|
DeleteRetry(pRetry);
|
|
}
|
|
|
|
error:
|
|
|
|
FreeSplStr(pszObjectGUID);
|
|
}
|
|
|
|
|
|
PRETRYLIST
|
|
FindRetry(
|
|
PWSTR pszObjectGUID
|
|
)
|
|
/*++
|
|
Function Description:
|
|
This function finds a RETRYLIST entry.
|
|
|
|
Parameters:
|
|
pszObjectGUID - pointer to buffer containing the GUID of the RETRYLIST entry to find or create.
|
|
|
|
Return Values:
|
|
PRETRYLIST - pointer to the found or create RETRYLIST entry. This may be NULL if the entry is
|
|
not found and a new one could not be created.
|
|
|
|
--*/
|
|
{
|
|
PRETRYLIST pRetry = &gRetry;
|
|
|
|
for (; pRetry->pNext ; pRetry = pRetry->pNext) {
|
|
//
|
|
// If entry exists, just return
|
|
//
|
|
if (!wcscmp(pszObjectGUID, pRetry->pNext->pszObjectGUID))
|
|
return pRetry->pNext;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
PRETRYLIST
|
|
GetRetry(
|
|
PWSTR pszObjectGUID
|
|
)
|
|
/*++
|
|
Function Description:
|
|
This function finds or creates a RETRYLIST entry.
|
|
|
|
Parameters:
|
|
pszObjectGUID - pointer to buffer containing the GUID of the RETRYLIST entry to find or create.
|
|
|
|
Return Values:
|
|
PRETRYLIST - pointer to the found or create RETRYLIST entry. This may be NULL if the entry is
|
|
not found and a new one could not be created.
|
|
|
|
--*/
|
|
{
|
|
PRETRYLIST pRetry = &gRetry;
|
|
int iRet = -1;
|
|
|
|
for (; pRetry->pNext ; pRetry = pRetry->pNext) {
|
|
//
|
|
// If entry exists, just return
|
|
//
|
|
if (!(iRet = wcscmp(pszObjectGUID, pRetry->pNext->pszObjectGUID)))
|
|
return pRetry->pNext;
|
|
//
|
|
// If next entry is greater than New entry, then insert New entry here
|
|
//
|
|
if (iRet > 0)
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Create a new entry
|
|
//
|
|
PRETRYLIST pRetryNew;
|
|
|
|
if (!(pRetryNew = (PRETRYLIST) AllocSplMem(sizeof(RETRYLIST))))
|
|
return NULL;
|
|
|
|
if (!(pRetryNew->pszObjectGUID = (PWSTR) AllocSplStr(pszObjectGUID))) {
|
|
FreeSplMem(pRetryNew);
|
|
return NULL;
|
|
}
|
|
|
|
if (!pRetry->pNext) {
|
|
//
|
|
// End of list
|
|
//
|
|
pRetryNew->pNext = NULL;
|
|
pRetryNew->pPrev = pRetry;
|
|
pRetry->pNext = pRetryNew;
|
|
} else {
|
|
//
|
|
// Middle of list
|
|
//
|
|
pRetryNew->pNext = pRetry->pNext;
|
|
pRetryNew->pPrev = pRetry;
|
|
pRetry->pNext->pPrev = pRetryNew;
|
|
pRetry->pNext = pRetryNew;
|
|
}
|
|
|
|
pRetryNew->nRetries = 0;
|
|
|
|
return pRetryNew;
|
|
}
|
|
|
|
|
|
VOID
|
|
DeleteRetry(
|
|
PRETRYLIST pRetry
|
|
)
|
|
{
|
|
SPLASSERT(pRetry != &gRetry);
|
|
SPLASSERT(pRetry);
|
|
SPLASSERT(pRetry->pszObjectGUID);
|
|
SPLASSERT(pRetry->pPrev);
|
|
|
|
pRetry->pPrev->pNext = pRetry->pNext;
|
|
|
|
if (pRetry->pNext)
|
|
pRetry->pNext->pPrev = pRetry->pPrev;
|
|
|
|
FreeSplStr(pRetry->pszObjectGUID);
|
|
FreeSplMem(pRetry);
|
|
}
|
|
|
|
|