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windows-nt-4.0/private/inet/ohnt/ie/core/dcache.c

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/*
Enhanced NCSA Mosaic from Spyglass
"Guitar"
Copyright 1994 Spyglass, Inc.
All Rights Reserved
Author(s):
Albert Lee [email protected]
*/
#include "all.h"
#include "oharever.h"
#include "history.h"
#include <intshcut.h> //for InetIsOffline()
/* version at which we changed cif file format */
#define VER_PRODUCTVERSION_CIFCHANGE_1 (0x04400000 | 216)
#define STATE_FILE_STREAMINIT (STATE_OTHER + 1)
#define STATE_FILE_COPYING (STATE_OTHER + 2)
#define MAX_KEY_LEN 25
/* Set dcache logging on by default in Debug builds */
#if defined(TEST_DCACHE_OPTIONS) || defined(XX_DEBUG)
#ifndef DCACHE_LOG
#define DCACHE_LOG
#endif
#endif
#ifdef DCACHE_LOG
#define DCACHE_LOG_CIF 1
#define DCACHE_LOG_OTHER 2
#define DCACHE_LOG_CLOSE 3
#define DCACHE_LOG_FOUND 4
#define DCACHE_LOG_PRESORT 5
#define DCACHE_LOG_SORT 6
#define DCACHE_LOG_NOFMT 7
#endif
/* Need this to possibly map to notcp.htm */
extern BOOL bNetwork;
struct _HTStream
{
CONST HTStreamClass *isa;
/* ... */
};
static BOOL bInitialized = FALSE; /* Flag indicating initialization */
static struct hash_table *pFileHash=NULL; /* Hash table containing file substitution rules (doesn't change, ex. on cdrom) */
static struct hash_table *pDynFileHash=NULL;/* Hash table containing file substitution rules (changes each time we access/save to disk cache) */
static struct hash_table *pAuxImgHash=NULL; /* Hash table for "obsolete" images */
static struct CacheRuleList *pRuleList=NULL;/* Linked list of rules */
static struct CDRomList *pCDRomList=NULL; /* List containing drive substitution rules */
static struct CDRomList *pCDRomAlias=NULL; /* Alias list containing user-defined substitution rules */
/* V,pszPrductName,dwProductVer */
const char cszCIFLineFmtV[]="V,%s,%lu\n";
const char cszProductName[]=VER_PRODUCTNAME_STR;
const char cszAppCIF[] = "iexplore.cif";
static HANDLE hCIFMutex = NULL; /* lock when updating cif info */
static HANDLE hDCacheMutex = NULL; /* lock when cleaning up dcache dir */
static HANDLE hDCacheStartEvent = NULL; /* Event signaled when start dcache cleaned up */
static HANDLE hDCacheDoneEvent = NULL; /* Event signaled when finish dcache cleaned up */
static HANDLE hDCacheThread = NULL; /* dcache cleanup done in separate thread */
#ifdef TEST_DCACHE_OPTIONS
static BOOL fCheckDCacheOverflow=TRUE; /* debug option: don't check for dcache overflow */
#endif
static BOOL bStopCleaning = FALSE; // Flag that cache cleanup honors in order to defer to
// main thread for CIF mutex
static void ReadDynCIF(void);
static void WriteDynCIF(void);
static BOOL FGetAppCIF(PSTR pszAppCIF, BOOL fCreate);
static int ProcessIndexFile(char *pFilename, BOOL fDynamic);
static void CleanupDCacheLocal(UINT uFlags);
static BOOL FDCacheOverflow(UINT uFlags);
static DWORD DwDirSize(PCSTR pcszDir, DWORD dwClusterSize);
DWORD WINAPI DwCleanupDCacheProc(LPUINT lpUFlags);
#ifdef DCACHE_LOG
static void WriteDCacheLog(PCSTR pcszFn, UINT uFlags);
#else
#define WriteDCacheLog(psz, fCif)
#endif
static void PropagateFreshnessToCif(void);
static void InitConnectState(void);
#ifdef FEATURE_INTL
BOOL HasDBCSchar(int codepage, LPCTSTR string, int count)
{
while(count-- > 0)
if (IsDBCSLeadByteEx(codepage, *string++)) return TRUE;
return FALSE;
}
#endif
/*
InitializeDiskCache
Initializes the local disk cache internal structures.
This function should be called once when Mosaic starts.
*/
BOOL InitializeDiskCache(void)
{
DWORD dwId;
UINT uFlags=0;
if (bInitialized)
return TRUE;
bInitialized = TRUE;
#ifdef XX_DEBUG
if (!gPrefs.bEnableDiskCache)
XX_Assert(FALSE, ("Disk Caching disabled!"));
#endif
#if 0
/* Make sure we have a min. amount of space for dcache */
if (FDCacheOverflow(DCACHE_WATERMARK_LOW))
{
ERR_ReportError(NULL, errNoDCacheSpace, NULL, NULL);
return FALSE;
}
#endif
pFileHash = Hash_Create();
pDynFileHash = Hash_Create();
if (!pFileHash || !pDynFileHash)
{
if (pFileHash)
Hash_Destroy(pFileHash);
if (pDynFileHash)
Hash_Destroy(pDynFileHash);
goto LError;
}
if (!(hCIFMutex = CreateMutex(NULL, FALSE, NULL)))
goto LError;
if (!(hDCacheMutex = CreateMutex(NULL, FALSE, NULL)))
goto LErrorClose1;
hDCacheStartEvent = CreateEvent( NULL, //Default security
TRUE, //manual reset
TRUE, //initial state signaled
NULL); //no name
if (!hDCacheStartEvent)
goto LErrorClose2;
hDCacheDoneEvent = CreateEvent( NULL, //Default security
TRUE, //manual reset
TRUE, //initial state signaled
NULL); //no name
if (!hDCacheDoneEvent)
goto LErrorClose3;
hDCacheThread = CreateThread( NULL, //Default security
0x1000, //stack size
DwCleanupDCacheProc,
&uFlags,
CREATE_SUSPENDED,
&dwId);
if (!hDCacheThread)
{
CloseHandle(hDCacheDoneEvent);
LErrorClose3:
CloseHandle(hDCacheStartEvent);
LErrorClose2:
CloseHandle(hDCacheMutex);
LErrorClose1:
CloseHandle(hCIFMutex);
goto LError;
}
pRuleList = NULL;
pCDRomList = NULL;
pCDRomAlias = NULL;
#ifdef WIN32
BuildCDRomList();
ReadCacheIndexFiles();
ReadDynCIF();
#endif
InitConnectState();
if ( hDCacheThread )
ResumeThread( hDCacheThread );
return TRUE;
LError:
hDCacheStartEvent = NULL;
hDCacheDoneEvent = NULL;
hCIFMutex = NULL;
hDCacheMutex = NULL;
hDCacheThread = NULL;
gPrefs.bEnableDiskCache = FALSE;
return TRUE; // Always return true. Just disable persistent caching.
}
/*
TerminateDiskCache
Frees all internal structures. This function should
be called when Mosaic is shutting down.
*/
void TerminateDiskCache(void)
{
struct CacheRuleList *p, *pNext;
HANDLE hTmpCache;
if (!bInitialized)
return;
#ifdef XX_DEBUG
if (!gPrefs.bEnableDiskCache)
XX_Assert(FALSE, (""));
#endif
WriteDynCIF();
if (pFileHash)
Hash_Destroy(pFileHash);
if (pDynFileHash)
Hash_Destroy(pDynFileHash);
if (hCIFMutex)
{
/* It's ok to check for existence of any one because upon creation,
* if we fail on any one of them, we release all of them.
*/
XX_Assert(hDCacheMutex, (""));
XX_Assert(hDCacheStartEvent, (""));
XX_Assert(hDCacheDoneEvent, (""));
XX_Assert(hDCacheThread, (""));
/* save this as we will need it */
hTmpCache = hDCacheThread;
hDCacheThread = NULL; // tell the thread to close down
SetEvent(hDCacheStartEvent);
CloseHandle(hTmpCache);
CloseHandle(hCIFMutex);
CloseHandle(hDCacheMutex);
CloseHandle(hDCacheStartEvent);
CloseHandle(hDCacheDoneEvent);
// TerminateThread(hDCacheThread, 0);
}
XX_Assert(!pAuxImgHash, ("pAuxImgHash not empty upon exit!"));
#ifdef DCACHE_LOG
WriteDCacheLog(NULL, DCACHE_LOG_CLOSE); //Close log file if open
#endif
p = pRuleList;
while (p)
{
pNext = p->next;
if (p->pszOriginal)
GTR_FREE(p->pszOriginal);
if (p->pszReplacement)
GTR_FREE(p->pszReplacement);
GTR_FREE(p);
p = pNext;
}
}
static void ReadDynCIF(void)
{
char szCIF[_MAX_PATH+1];
if (!FGetAppCIF(szCIF, /*fCreate=*/FALSE))
return;
if (FExistsFile(szCIF, FALSE, NULL))
ProcessIndexFile(szCIF, /*fDynamic=*/TRUE);
}
#ifdef TEST_DCACHE_OPTIONS
static void ReReadDynCIF(void)
{
int i, iMax;
XX_Assert(hCIFMutex, (""));
#ifdef TEMP0
XX_DebugMessage("Waiting for hCIFMutex");
#endif
WaitForSingleObject(hCIFMutex, INFINITE);
#ifdef TEMP0
XX_DebugMessage("Got hCIFMutex");
#endif
for (i=0, iMax=Hash_Count(pDynFileHash); i<iMax; i++)
Hash_DeleteIndexedEntry(pDynFileHash, i);
ReadDynCIF();
ReleaseMutex(hCIFMutex);
#ifdef TEMP0
XX_DebugMessage("Released hCIFMutex");
#endif
}
#endif
static BOOL FGetAppCIF(PSTR pszAppCIF, BOOL fCreate)
{
char *pszT;
if (!FExistsDir(gPrefs.szCacheLocation, fCreate, FALSE))
return FALSE;
XX_Assert(pszAppCIF, ("Null pszAppCIF"));
strcpy(pszAppCIF, gPrefs.szCacheLocation);
pszT = pszAppCIF + strlen(pszAppCIF);
/* Tack on a \ if there isn't already one */
if (!(pszT > pszAppCIF && *(pszT-1) == chBSlash))
*pszT++ = chBSlash;
strcpy(pszT, cszAppCIF);
return TRUE;
}
static void WriteDynCIF(void)
{
/* F,pszURL,lFilesize,
dctimeLastModif.dwDCacheTime1,
dctimeLastModif.dwDCacheTime2,
dctimeExpires.dwDCacheTime1,
dctimeExpires.dwDCacheTime2,
dctimeLastUsed.dwDCacheTime1,
dctimeLastUsed.dwDCacheTime2,
pszMime,
pszPathResolved,fNoDocCache */
const char cszCIFLineFmtF[]="F,%s,%lu,%lu,%lu,%lu,%lu,%lu,%lu,%s,%s,%u\n";
char szCIF[_MAX_PATH+1];
char *pszURL;
int cLine, i;
FILE *fp;
CacheFileInformation *pFileInfo;
if ( !pDynFileHash
|| !FGetAppCIF(szCIF, /*fCreate=*/TRUE))
return;
if (!(fp = fopen(szCIF, "w")))
return;
/* Put in version info */
fprintf(fp, cszCIFLineFmtV, cszProductName, VER_PRODUCTVERSION_DW);
for (i = 0, cLine=Hash_Count(pDynFileHash); i<cLine; i++)
{
Hash_GetIndexedEntry(pDynFileHash, i, &pszURL, NULL, (void **) &pFileInfo);
XX_Assert(pszURL, (""));
XX_Assert(pFileInfo->pszPath, (""));
XX_Assert(sizeof(DCACHETIME) == 2*sizeof(DWORD), (""));
fprintf(fp, cszCIFLineFmtF, pszURL,
pFileInfo->lFilesize,
pFileInfo->dctLastModified.dwDCacheTime1,
pFileInfo->dctLastModified.dwDCacheTime2,
pFileInfo->dctExpires.dwDCacheTime1,
pFileInfo->dctExpires.dwDCacheTime2,
pFileInfo->dctLastUsed.dwDCacheTime1,
pFileInfo->dctLastUsed.dwDCacheTime2,
pFileInfo->pszMime ? pFileInfo->pszMime : "", //else fprintf puts "(null)"
pFileInfo->pszPath,
pFileInfo->fNoDocCache);
}
fclose(fp);
}
/*
FreeCDRomList
Frees all memory blocks associated with a CD Rom list.
BuildCDRomList is platform-specific.
*/
static void FreeCDRomList(struct CDRomList *pList)
{
struct CDRomList *p;
struct CDRomList *pNext;
p = pList;
while (p)
{
pNext = p->next;
if (p->alias)
GTR_FREE(p->alias);
if (p->path)
GTR_FREE(p->path);
GTR_FREE(p);
p = pNext;
}
}
/*
ResolveFilename
Resolves the file name of the given file, using the CD-Rom
list and custom drive list.
THE CALLER MUST FREE THE RETURNED MEMORY BLOCK.
*/
static char *ResolveFilename(char *pFilename)
{
struct CDRomList *pCDRom;
char *pResolved;
int pass = 0, i;
pCDRom = pCDRomList;
DoAgain:
while (pCDRom)
{
if (strncmp(pFilename, pCDRom->alias, strlen(pCDRom->alias)) == 0)
{
/* Found a match - replace now */
pResolved = GTR_MALLOC(strlen(pFilename) + strlen(pCDRom->path + 1));
if (!pResolved)
return NULL;
strcpy(pResolved, pCDRom->path);
strcat(pResolved, &pFilename[strlen(pCDRom->alias)]);
/* Replace forward slashes with back slashes */
for (i = 0; i < strlen(pResolved); i++)
{
if (pResolved[i] == '/')
pResolved[i] = '\\';
}
return pResolved;
}
pCDRom = pCDRom->next;
}
pass++;
if (pass == 1)
{
pCDRom = pCDRomAlias;
goto DoAgain;
}
pResolved = GTR_strdup(pFilename);
return pResolved;
}
/*
ProcessIndexFile
Processes the specified index file. This function assumes
that pCDRomList and pCDRomAlias have already been populated
with the correct CD-Rom entries.
Returns 1 if file was processed, 0 if not.
*/
static int ProcessIndexFile(char *pFilename, BOOL fDynamic)
{
FILE *fp;
char *pLine; /* Buffer to hold the line content */
char szTab[3]; /* used in looking for tab delimiters */
int ret = 0; /* return value */
char *p1,*p2,*p3,*p41,*p42,*p51,*p52,*p61,*p62,*p7,*p8,*p9; /* temporary vars for parsing */
CacheFileInformation *pFileInfo; /* entry into */
struct CacheRuleList *pRuleInfo; /* rule info */
char *pResolvedFilename; /* resolved filename */
struct hash_table *pHash;
DWORD dwVersion=0;
if (fDynamic)
{
XX_Assert(pDynFileHash, (""));
pResolvedFilename = pFilename;
pHash = pDynFileHash;
}
else
{
pResolvedFilename = ResolveFilename(pFilename);
pHash = pFileHash;
}
if (!pResolvedFilename)
return 0;
szTab[0] = '\t'; /* tab character */
szTab[1] = ',';
szTab[2] = '\0'; /* NULL terminator */
pLine = GTR_MALLOC(DCACHE_MAXIMUM_LINE_LENGTH);
if (!pLine)
return 0;
fp = fopen(pResolvedFilename, "rt");
if (!fDynamic)
GTR_FREE(pResolvedFilename);
if (!fp)
{
GTR_FREE(pLine);
return 0;
}
while (!feof(fp))
{
if (NULL == fgets(pLine, DCACHE_MAXIMUM_LINE_LENGTH, fp))
break;
/* Strip the last character if it's a linefeed */
if (pLine[strlen(pLine) - 1] == '\n')
pLine[strlen(pLine) - 1] = '\0';
if (!(p1 = strtok(pLine, szTab)))
continue;
p2 = strtok(NULL, szTab);
p3 = strtok(NULL, szTab);
if (!p1)
{
continue;
}
if (strcmp(p1, "F") == 0)
{
/* This line contains information about a file substitution */
/* BUGBUG: don't ship with this code. Just for upgrading all the beta users */
#ifdef PRERELEASE_CIF
if (dwVersion < VER_PRODUCTVERSION_CIFCHANGE_1)
{
/* older version of cif file: DCACHETIME was dword */
p41 = strtok(NULL, szTab);
p42 = NULL;
p51 = strtok(NULL, szTab);
p52 = NULL;
p61 = strtok(NULL, szTab);
p62 = NULL;
}
else
#endif
{
/* new version of cif file: DCACHETIME is 2 dwords */
p41 = strtok(NULL, szTab);
p42 = strtok(NULL, szTab);
p51 = strtok(NULL, szTab);
p52 = strtok(NULL, szTab);
p61 = strtok(NULL, szTab);
p62 = strtok(NULL, szTab);
}
p7 = strtok(NULL, szTab);
p8 = strtok(NULL, szTab);
p9 = strtok(NULL, szTab);
if (!p2 || !p3 || !p41 || !p51 || !p61 || !p7 || !p8 || !p9)
continue; /* incomplete line */
#ifdef PRERELEASE_CIF
if (dwVersion >= VER_PRODUCTVERSION_CIFCHANGE_1)
#endif
{
if (!p42 || !p52 || !p62)
continue;
}
pFileInfo = GTR_MALLOC(sizeof(struct _CacheFileInformation));
memset(pFileInfo, 0, sizeof(struct _CacheFileInformation));
pFileInfo->pszMime = GTR_strdup(p7);
if (fDynamic)
{
/* Don't check if file exists here. Check it in GetResolvedURL */
pFileInfo->pszPath = GTR_MALLOC(strlen(p8) + 1);
strcpy(pFileInfo->pszPath, p8);
}
else
{
if (strchr(p8, '\\') == NULL)
{
/* There is no path specifier in the file name. In this case,
we use the same directory as the index file. */
pFileInfo->pszPath = GTR_MALLOC(strlen(p8) + strlen(pResolvedFilename) + 1);
strcpy(pFileInfo->pszPath, pResolvedFilename);
/* BUGBUG: What if there are subdirs? */
*(strrchr(pFileInfo->pszPath, '\\') + 1) = '\0';
strcat(pFileInfo->pszPath, p8);
}
else
pFileInfo->pszPath = ResolveFilename(p8);
}
pFileInfo->lFilesize = atol(p3);
pFileInfo->dctLastModified.dwDCacheTime1 = (DWORD)atol(p41);
pFileInfo->dctLastModified.dwDCacheTime2 = (p42 ? (DWORD)atol(p42) : 0);
pFileInfo->dctExpires.dwDCacheTime1 = (DWORD)atol(p51);
pFileInfo->dctExpires.dwDCacheTime2 = (p52 ? (DWORD)atol(p52) : 0);
pFileInfo->dctLastUsed.dwDCacheTime1 = (DWORD)atol(p61);
pFileInfo->dctExpires.dwDCacheTime2 = (p62 ? (DWORD)atol(p62) : 0);
pFileInfo->fNoDocCache = (BOOL)atol(p9);
Hash_Add(pHash, p2, NULL, pFileInfo);
}
else if (strcmp(p1, "R") == 0)
{
/* This line contains information about a rule */
if (!p2 || !p3)
continue; /* incomplete line */
pRuleInfo = GTR_MALLOC(sizeof(struct CacheRuleList));
pRuleInfo->pszOriginal = GTR_strdup(p2);
pRuleInfo->pszReplacement = ResolveFilename(p3);
if (pRuleList)
{
pRuleInfo->next = pRuleList;
pRuleList = pRuleInfo;
}
else
{
pRuleInfo->next = NULL;
pRuleList = pRuleInfo;
}
}
else if (strcmp(p1, "V") == 0)
{
/* Version information */
if (!p2 || !p3)
continue; /* incomplete line */
if ((dwVersion = (DWORD)atol(p3)) > VER_PRODUCTVERSION_DW)
break; /* don't read newer versions of the cif file */
}
else
{
/* Illegal entry, since it doesn't start with V, F or R */
}
}
fclose(fp);
return 1;
}
/*
MakeURLFromLocalFile
Given a local file name, returns a fully qualified URL.
THE CALLER MUST FREE THE RETURNED MEMORY BLOCK.
*/
static char *MakeURLFromLocalFile(char *pszLocal)
{
char *pszReturn, *p;
int i;
pszReturn = GTR_MALLOC(strlen(pszLocal) + 10);
strcpy(pszReturn, "file:///");
strcat(pszReturn, pszLocal);
/* Replace the second : with | (first one is file:) */
if (p = strrchr(pszReturn, ':'))
*p = '|';
/* Replace backslashes with forward slashes */
for (i = 0; i < strlen(pszReturn); i++)
{
if (pszReturn[i] == '\\')
pszReturn[i] = '/';
}
return pszReturn;
}
BOOL FExpired(DCACHETIME dctExpires)
{
DCACHETIME dctSystem;
/* Get current system time in our proprietary format */
SetDCacheTime(&dctSystem);
return (CompareDCacheTime(dctExpires, dctSystem) <= 0);
}
int CompareDCacheTime(DCACHETIME dct1, DCACHETIME dct2)
{
if (dct1.dwDCacheTime1 == dct2.dwDCacheTime1)
{
if (dct1.uSecs == dct2.uSecs)
return 0;
else if (dct1.uSecs < dct2.uSecs)
return -1;
return 1;
}
else if (dct1.dwDCacheTime1 < dct2.dwDCacheTime1)
return -1;
return 1;
}
/*
* We pull the file from the disk cache if:
* a) the file exists
* AND b) it is the same size as what we think (from cif) it is
* AND c) c1) If we are NOT connected to the net, (ignoring all other flags)
* OR c2) c21) If we ARE connected to the net,
* AND c22) it has not "expired"
*/
BOOL static FValidDCacheFile( PCSTR pszFullFn,
CacheFileInformation *pFileInfo,
BOOL fNetConnected,
BOOL fLoadFromDCacheOK)
{
BY_HANDLE_FILE_INFORMATION bhfi;
if (FExistsFile(pszFullFn, FALSE, &bhfi))
{
if ( (pFileInfo->lFilesize != (bhfi.nFileSizeHigh << sizeof(WORD)) + bhfi.nFileSizeLow)
|| ( fNetConnected
&& (pFileInfo->fNoDocCache || FExpired(pFileInfo->dctExpires))))
{
SetFileAttributes(pszFullFn, FILE_ATTRIBUTE_NORMAL);
DeleteFile(pszFullFn);
return FALSE;
}
return TRUE;
}
return FALSE;
}
#define CONNECT_STATE_UNINIT 0
#define CONNECT_STATE_CONNECTED 1
#define CONNECT_STATE_NOTCONNECTED 2
static int iCheckConnectState = CONNECT_STATE_UNINIT;
/* This will return true if the first time that we checked to see if we are
* connected we got a false and the next time we check in this routine, we
* are NOT connected. This means that the user pressed cancel in the Connect
* dialog (winsock) just before we timed out.
* This routine should return TRUE exactly once per session of IExplore.
*/
BOOL FUserCancelledAutoDialRecently(void)
{
BOOL fConn;
BOOL fRet;
fConn = (!InetIsOffline(0));
fRet = (iCheckConnectState == CONNECT_STATE_CONNECTED && !fConn);
XX_Assert(iCheckConnectState != CONNECT_STATE_UNINIT, (""));
iCheckConnectState = (fConn ? CONNECT_STATE_CONNECTED : CONNECT_STATE_NOTCONNECTED);
return fRet;
}
static void InitConnectState(void)
{
BOOL fConn;
fConn = (!InetIsOffline(0));
iCheckConnectState = (fConn ? CONNECT_STATE_CONNECTED : CONNECT_STATE_NOTCONNECTED);
}
static BOOL FConnected(HWND hwnd, DWORD dwFlags)
{
return (!InetIsOffline(0));
}
/*
GetResolvedURL
Returns the name of the resolved URL from the given URL.
It performs the following functions:
1. Put file:/// as the prefix
2. Replace the drive specifier (:) with |
3. Replace all backslashes with forward slashes
THE CALLER MUST FREE THE RETURNED MEMORY BLOCK AS WELL AS
ppPath.
*/
char *GetResolvedURL( PCSTR pcszURL,
HTFormat *pMime,
long *pFileLength,
char **ppPath,
DCACHETIME *pDcTimeLastModif,
BOOL fLoadFromDCacheOK)
{
const char cszFtp[]="ftp";
const char cszGopher[]="gopher";
if (gPrefs.bEnableDiskCache)
{
struct CacheRuleList *pRule;
char *pszResolved, *pszReturn;
char szFullFn[_MAX_PATH+1];
struct _CacheFileInformation *pFileInfo;
#ifdef FEATURE_LOCALONLY_MESSAGE_URL
char notcpBuff[_MAX_PATH + 1];
#endif
int ndx1=-1;
int ndx2=-1;
BOOL fConn;
AssertDiskCacheEnabled();
/* Look through the file list first for resolution */
if ( (ndx1 = Hash_Find(pDynFileHash, pcszURL, NULL, (void **) &pFileInfo)) != -1
|| (ndx2 = Hash_Find(pFileHash, pcszURL, NULL, (void **) &pFileInfo)) != -1)
{
if (fConn = FConnected(wg.hWndHidden, 0))
{
/* Don't get ftp and gopher data from dcache if we're connected */
if ( !_strnicmp(pcszURL, cszFtp, sizeof(cszFtp)-1)
|| !_strnicmp(pcszURL, cszGopher, sizeof(cszGopher)-1))
{
FlushDCacheEntry(pcszURL);
goto LNotFound;
}
}
GetFullDcPath(szFullFn, pFileInfo->pszPath, NULL, _MAX_PATH+1);
if (!FValidDCacheFile(szFullFn, pFileInfo, fConn, fLoadFromDCacheOK))
{
if (ndx1 != -1)
Hash_DeleteIndexedEntry(pDynFileHash, ndx1);
else
Hash_DeleteIndexedEntry(pFileHash, ndx2);
goto LNotFound;
}
/* fill in last modified date */
if (pDcTimeLastModif)
*pDcTimeLastModif = pFileInfo->dctLastModified;
if ( fConn
&& !fLoadFromDCacheOK
&& ( gPrefs.iCacheUpdFrequency == CACHE_UPDATE_FREQ_ONCEPERSESS
&& !pFileInfo->fCheckedForFreshness))
goto LNotFound;
pszResolved = GTR_strdup(szFullFn);
pszReturn = MakeURLFromLocalFile(pszResolved);
if (pMime)
*pMime = HTAtom_for(pFileInfo->pszMime);
if (pFileLength)
*pFileLength = pFileInfo->lFilesize;
if (ppPath)
*ppPath = pszResolved;
return pszReturn;
}
/* Look through the rule list for any possible resolution */
pRule = pRuleList;
while (pRule)
{
if (strncmp(pcszURL, pRule->pszOriginal, strlen(pRule->pszOriginal)) == 0)
{
pszResolved = GTR_MALLOC(strlen(pcszURL) + strlen(pRule->pszReplacement) + 10);
strcpy(pszResolved, pRule->pszReplacement);
strcat(pszResolved, &pcszURL[strlen(pRule->pszOriginal)]);
pszReturn = MakeURLFromLocalFile(pszResolved);
if (pMime)
*pMime = 0; /* No specified MIME type */
if (pFileLength)
*pFileLength = 0; /* File length unknown */
if (ppPath)
*ppPath = pszResolved;
return pszReturn;
}
pRule = pRule->next;
}
LNotFound:
/* No substitute found for the specified URL */
#ifdef FEATURE_LOCALONLY_MESSAGE_URL
if (!bNetwork)
{
if ((0 == strncmp(pcszURL, "http:", 5)) ||
(0 == strncmp(pcszURL, "ftp:", 4)) ||
(0 == strncmp(pcszURL, "gopher:", 7)))
{
strcpy(notcpBuff, wg.szRootDirectory);
/* They asked for this hack. I should put in .INI anyway */
/* TODO Beta 3 - requires prefs.c change which is OLD (and default.ini) */
strcat(notcpBuff, "\\");
strcat(notcpBuff, "notcp.htm");
pszResolved = GTR_strdup(notcpBuff);
pszReturn = MakeURLFromLocalFile(pszResolved);
if (pMime)
*pMime = 0; /* No specified MIME type */
if (pFileLength)
*pFileLength = 0; /* File length unknown */
if (ppPath)
*ppPath = pszResolved;
return pszReturn;
}
}
#endif /*FEATURE_LOCALONLY_MESSAGE_URL */
if (pMime)
*pMime = 0; /* No specified MIME type */
if (pFileLength)
*pFileLength = 0; /* unknown file length */
if (ppPath)
*ppPath = NULL;
}
return(GTR_strdup(pcszURL));
}
/*
* Input: pcszURL: (ahem...) a url.
*
* Output: Full path to the file if it is in the dcache and is valid
* else NULL (not in dcache, NOMEM, other.
*
* Side effects: none
*
* Used by: DavidDi's drag and drop code (GetURLFileSystemPath)
*/
PSTR PszGetDCachePath( PCSTR pcszURL,
HTFormat *pMime,
long *pFileLength)
{
char szFullFn[_MAX_PATH+1];
struct _CacheFileInformation *pFileInfo;
if (gPrefs.bEnableDiskCache)
{
/* Look through the file list for resolution */
if (Hash_Find(pDynFileHash, pcszURL, NULL, (void **) &pFileInfo) != -1)
{
GetFullDcPath(szFullFn, pFileInfo->pszPath, NULL, _MAX_PATH+1);
if (FValidDCacheFile(szFullFn, pFileInfo, FALSE, TRUE))
{
if (pMime)
*pMime = HTAtom_for(pFileInfo->pszMime);
if (pFileLength)
*pFileLength = pFileInfo->lFilesize;
return GTR_strdup(szFullFn);
}
}
}
return NULL;
}
/************************************************************
DCACHE PROTOCOL CODE
Borrowed heavily from htfile.c
************************************************************/
PRIVATE int HTLoadDCache_Async(struct Mwin *tw, int nState, void **ppInfo)
{
char *addr;
HTFormat format;
char *newname = 0; /* Simplified name of file */
ENCODING encoding;
HTAtom language;
char *localname;
struct Params_LoadAsync *pParams;
struct Data_LoadFileCache *pData;
DCACHETIME dct={0,0};
AssertDiskCacheEnabled();
pData = *ppInfo;
switch (nState)
{
case STATE_INIT:
pParams = *ppInfo;
pData = GTR_MALLOC(sizeof(*pData));
memset(pData, 0, sizeof(*pData));
pData->request = HTRequest_validate(pParams->request);
pData->pStatus = pParams->pStatus;
*ppInfo = pData;
GTR_FREE(pParams);
if (!pData->request)
{
*pData->pStatus = HT_INTERNAL;
return STATE_DONE;
}
/* Reduce the filename to a basic form (hopefully unique!) */
addr = (char *) pData->request->destination->szActualURL;
{ /* Hack -dpg to pass a long * to GetResolvedURL instead of int */
long tmp;
tmp = pData->request->content_length;
localname = PszGetDCachePath(addr, &format, &tmp);
// GetResolvedURL(addr, &format, &tmp, &localname, NULL, TRUE);
pData->request->content_length = (int) tmp;
}
/* Need protection here for telnet server but not httpd server */
if (localname)
{ /* try local file system */
if (format == 0)
format = HTFileFormat(localname, &encoding, &language);
pData->fp = fopen(localname, "rb");
if (pData->fp)
{
/*
Since we are reading a local file, we record that fact in the
request structure. If this request happens to end up in the
FileWriter class, that class can avoid writing a temp file
and simply read this file directly.
It is the responsibility of FileWriter to make sure that this
filename is not marked for deletion as a temporary file.
It is the responsibility of the caller (loaddoc.c) to make sure
that this string gets freed.
*/
pData->request->szLocalFileName = GTR_strdup(localname);
}
else
{
pData->request->szLocalFileName = NULL;
}
/* BUGBUG: (deepaka) overlapping functionality of fImgFromDCache
* and request->szLocalFileName. Remove it!
*/
pData->request->fImgFromDCache = TRUE; //external img. from dcache
pData->request->savefile = NULL;
localname = NULL;
if (pData->fp)
{
#ifdef DCACHE_LOG
{
const char cszDCFmt[]="Url: %s Fetching from dcache.";
char szT[_MAX_PATH+1];
wsprintf(szT, cszDCFmt, pData->request->destination->szActualURL);
WriteDCacheLog(szT, DCACHE_LOG_NOFMT);
}
#endif
if (pData->request->content_length == 0)
{
if (0 == fseek(pData->fp, 0, SEEK_END))
{
pData->request->content_length = ftell(pData->fp);
if (pData->request->content_length < 0)
pData->request->content_length = 0;
fseek(pData->fp, 0, SEEK_SET);
}
}
if (FGopherFormat(format))
return DoGopherDCache(tw, pData, format);
else if (FFtpFormat(format))
return DoFtpDCache(tw, pData, format);
if (!(pData->stream = HTStreamStack(tw, format, pData->request)))
{
if ( pData->request->iFlags & HTREQ_NULL_STREAM_IS_OK )
{
pData->request->iFlags &= ~HTREQ_NULL_STREAM_IS_OK;
*pData->pStatus = HT_LOADED;
}
else
*pData->pStatus = -501;
fclose(pData->fp);
return STATE_DONE;
}
else
{
/* Ignore CRLF if necessary
*/
if (!(pData->request->iFlags & HTREQ_BINARY) && ((pData->request->content_encoding == ENCODING_7BIT ||
pData->request->content_encoding == ENCODING_8BIT)))
{
pData->stream = HTNetToText(pData->stream);
}
HTSetStreamStatus(tw, pData->stream, pData->request);
if (pData->stream->isa->init_Async)
{
/* The stream has an async initialization function that needs to be called
(probably to put up a dialog) before we continue. */
struct Params_InitStream *pis;
pis = GTR_MALLOC(sizeof(*pis));
pis->me = pData->stream;
pis->request = pData->request;
pis->pResult = pData->pStatus;
pis->fDCache = FALSE;
Async_DoCall(pData->stream->isa->init_Async, pis);
return STATE_FILE_STREAMINIT;
}
else
return STATE_FILE_COPYING;
}
}
}
/* Failed. */
*pData->pStatus = -403;
ERR_ReportError(tw, errFileURLNotFound, pData->request->destination->szActualURL, NULL);
return STATE_DONE;
case STATE_FILE_STREAMINIT:
if (*pData->pStatus < 0)
{
(*pData->stream->isa->abort)(pData->stream, 0);
return STATE_DONE;
}
// #ifdef REVIEW_BY_DEEPAK
if (*pData->pStatus == 0)
{
/*
This only happens if the async init function told us we were already
done. In other words, only FileWriter should do this, and only when
request->szLocalFileName is true.
*/
fclose(pData->fp);
pData->fp = NULL;
(*pData->stream->isa->free)(pData->stream, dct, dct);
pData->stream = NULL;
*pData->pStatus = HT_LOADED;
return STATE_DONE;
}
// #endif REVIEW_BY_DEEPAK
/* else fall through to STATE_FILE_COPYING */
case STATE_FILE_COPYING:
{
int bytes = 0;
int status;
char input_buffer[INPUT_BUFFER_SIZE];
if ( !(pData->request->iFlags & HTREQ_IF_IN_CACHE_DONT_READ_DATA) ) {
while (1)
{
status = fread(input_buffer, 1, INPUT_BUFFER_SIZE, pData->fp);
if (status == 0)
{ /* EOF or error */
if (ferror(pData->fp) != 0)
status = -1;
break;
}
bytes += status;
if (pData->request->content_length)
WAIT_SetTherm(tw, bytes);
(*pData->stream->isa->put_block)(pData->stream, input_buffer, status, FALSE);
}
}
fclose(pData->fp);
pData->fp = NULL;
if (status < 0)
{
(*pData->stream->isa->abort)(pData->stream, 0);
pData->stream = NULL;
*pData->pStatus = -1;
}
else
{
(*pData->stream->isa->free)(pData->stream, dct, dct);
pData->stream = NULL;
*pData->pStatus = HT_LOADED;
}
return STATE_DONE;
}
case STATE_ABORT:
pData->request = HTRequest_validate(pData->request);
if (pData->stream)
{
(*pData->stream->isa->abort)(pData->stream, HTERROR_CANCELLED);
}
if (pData->fp)
{
fclose(pData->fp);
}
*pData->pStatus = -1;
return STATE_DONE;
}
XX_Assert((0), ("Function called with illegal state: %d", nState));
return STATE_DONE;
}
/************************************************************
Windows specific code
************************************************************/
#ifdef WIN32
/*
ReadProfileSection
Read the given section and return the buffer with
the content. The return value is NULL if there is
a memory error or if the given section does not
exist.
THE CALLER MUST FREE THE RETURNED MEMORY BLOCK.
*/
static char *ReadProfileSection(char *pSection)
{
char *pBuffer;
int nAllocSize = 1024; /* Memory allocation block size */
int nRead; /* Number of bytes read from INI section */
pBuffer = GTR_MALLOC(nAllocSize);
if (!pBuffer)
return NULL;
for (;;)
{
nRead = (int) regGetPrivateProfileSection(pSection, pBuffer, nAllocSize, HKEY_LOCAL_MACHINE );
if (nRead > nAllocSize - 512)
{
/* Buffer is too small. Increase the buffer size and try again. */
GTR_FREE(pBuffer);
nAllocSize *= 2;
pBuffer = GTR_MALLOC(nAllocSize);
if (!pBuffer)
return NULL;
}
else if (nRead == 0)
{
/* The specified section was not found */
GTR_FREE(pBuffer);
return NULL;
}
else
break; /* Section read in */
}
return pBuffer;
}
/*
BuildCDRomList
Scans all DOS drives and builds a CD-Rom list.
Returns the number of CD-Rom drives found.
*/
static int BuildCDRomList(void)
{
char szRoot[10], szAlias[20];
UINT dtype;
int dcount = 0;
struct CDRomList *pCDRom;
strcpy(szRoot, "C:\\");
dcount = 0;
for(;;)
{
dtype = GetDriveType(szRoot);
if (dtype == DRIVE_CDROM)
{
/* Found a CD Rom. Add an entry to the CD Rom list. */
dcount++;
pCDRom = GTR_MALLOC(sizeof(struct CDRomList));
pCDRom->path = GTR_strdup(szRoot);
sprintf(szAlias, "$(CDROM%d)", dcount);
pCDRom->alias = GTR_strdup(szAlias);
pCDRom->next = pCDRomList; /* Even if pCDRomList == NULL */
pCDRomList = pCDRom;
}
if (szRoot[0] < 'Z')
szRoot[0]++;
else
break;
}
/* Add a non-CDROM to CDROM list for $(EXEDIR) support */
pCDRom = GTR_MALLOC(sizeof(struct CDRomList));
pCDRom->path = GTR_strdup(wg.szRootDirectory);
strcpy(szAlias, "$(EXEDIR)");
pCDRom->alias = GTR_strdup(szAlias);
pCDRom->next = pCDRomList; /* Even if pCDRomList == NULL */
pCDRomList = pCDRom;
/* Hope we dont use dcount to assume an actual cdrom anywhere */
dcount++;
return dcount;
}
/*
ReadCacheIndexFiles
Read all entries from cache index files and put
the entries in the substitution hash table and
rule list.
Return value: 0 = no entries found
n = n entries found
negative values = error
*/
static int ReadCacheIndexFiles(void)
{
int nCount = 0; /* Number of index files processed */
char *p1, *p2, *p3, *p4; /* Temporary variables used for parsing */
char *pIndexSection; /* Pointer to [DiskCaches] section */
char *pCurrentIndex; /* Current index within [DiskCaches] section */
int nCurrentIndexLength; /* Length of current index */
char *pCustomDrive; /* Pointer to custom drive section */
char *pCurrentDrive; /* Current drive within the custom drive section */
int nCurrentDriveLength; /* Length of current drive */
struct CDRomList *pDrive; /* Entry to be added to the custom drive list */
pIndexSection = ReadProfileSection("DiskCaches");
if (!pIndexSection)
{
/* No cache is found. */
return 0;
}
/* Parse through the section */
pCurrentIndex = pIndexSection;
nCurrentIndexLength = strlen(pCurrentIndex);
while (pCurrentIndex[0])
{
/* BUGBUG: nCurrentIndexLength isn't updated */
p1 = strtok(pCurrentIndex, "=");
p2 = strtok(NULL, "=");
/* p1 should contain the entry name which can be used as a section name.
If there is a section with this name, it should contain CD Rom substitution
rules, so read it in before we start processing the index files. */
FreeCDRomList(pCDRomAlias);
pCDRomAlias = NULL;
pCustomDrive = ReadProfileSection(p1);
if (pCustomDrive)
{
/* Build a list of aliases for CD Roms */
pCurrentDrive = pCustomDrive;
nCurrentDriveLength = strlen(pCurrentDrive);
while (pCurrentDrive[0])
{
p3 = strtok(pCurrentDrive, "=");
p4 = strtok(NULL, "=");
pDrive = GTR_MALLOC(sizeof(struct CDRomList));
pDrive->alias = GTR_MALLOC(strlen(p3) + 4);
sprintf(pDrive->alias, "$(%s)", p3);
pDrive->path = GTR_strdup(p4);
if (pCDRomAlias)
{
pDrive->next = pCDRomAlias;
pCDRomAlias = pDrive;
}
else
{
pDrive->next = NULL;
pCDRomAlias = pDrive;
}
pCurrentDrive = pCurrentDrive + nCurrentDriveLength + 1;
}
}
/* Now read in the index file and process each line within the file */
if (ProcessIndexFile(p2, /*fDynamic=*/FALSE))
nCount++;
pCurrentIndex = pCurrentIndex + nCurrentIndexLength + 1; /* Skip past the null terminator */
}
return nCount;
}
#endif
void AbortFileDCache(FILE **pfpDc, PSTR *ppszDcFile)
{
AssertDiskCacheEnabled();
fclose(*pfpDc);
remove(*ppszDcFile);
*pfpDc = NULL;
GTR_FREE(*ppszDcFile);
*ppszDcFile = NULL;
}
/* Returns:
* pszFullDcFile = "c:\internet\dcache\abc.gif"
* pszDcFile = "abc.gif"
*/
BOOL FGetDCacheFilename(PSTR pszFullDcFile,
int iLenMax,
PSTR *ppszDcFile,
PCSTR pcszURL,
HTFormat mime_type)
{
const char cszDcFileFmt[]="%s (%i).%s";
char *pszDcFile, *pszExt;
char szBase[_MAX_PATH+1];
int i;
if (!gPrefs.bEnableDiskCache)
return FALSE;
iLenMax = min(iLenMax, _MAX_PATH+1); //because szBase is _MAX_PATH+1
XX_Assert(pszFullDcFile, (""));
if (!FExistsDir(gPrefs.szCacheLocation, TRUE, FALSE))
return FALSE;
strncpy(pszFullDcFile, gPrefs.szCacheLocation, iLenMax-1);
pszFullDcFile[iLenMax-1] = '\0';
pszDcFile = pszFullDcFile + strlen(pszFullDcFile);
if (!(pszDcFile > pszFullDcFile && *(pszDcFile-1) == chBSlash))
*pszDcFile++ = chBSlash;
/* REVIEW (deepaka): Fix x_get_good_filename to return friendly/long
* filenames of Win95. It truncates to 8.4 (strange) right now.
*/
/*
* NOTE: cszDcFileFmt has 8 chars of format specs, which balances insert of i
*/
x_get_good_filename(szBase,
iLenMax - (pszDcFile - pszFullDcFile) - strlen(cszDcFileFmt),
(PSTR)pcszURL,
mime_type);
// Word IA can't handle extensions ending in ".html". Check to see if the first
// stab at a file name end in ".html". If if does, truncate the string so that it
// ends in ".htm".
{
int len = strlen(szBase);
if ( len >= 5 ) {
if ( _stricmp( &szBase[len-5], ".html" ) == 0 ) {
szBase[len-1] = 0;
}
}
}
strcpy(pszDcFile, szBase);
pszExt = strrchr(szBase, chPeriod);
if (pszExt)
*pszExt++= '\0'; /* Now points to the extension */
for (i=0;;)
{
if (!FExistsFile(pszFullDcFile, FALSE, NULL))
break;
wsprintf(pszDcFile, cszDcFileFmt, szBase, ++i, pszExt ? pszExt : "");
}
if (ppszDcFile)
*ppszDcFile = pszDcFile;
return TRUE;
}
#ifdef FEATURE_INTL
void SetFileDCache(WWW *pdoc, PCSTR pcszActualURL,
ENCODING content_encoding,
FILE **pfpDc,
PSTR *ppszDcFile, //returns filename without root disk cache
HTFormat mime_type)
#else
void SetFileDCache( PCSTR pcszActualURL,
ENCODING content_encoding,
FILE **pfpDc,
PSTR *ppszDcFile, //returns filename without root disk cache
HTFormat mime_type)
#endif
{
PSTR pszFullDcFile;
PSTR pszDcFile;
if (!gPrefs.bEnableDiskCache)
return;
*pfpDc = NULL;
*ppszDcFile = NULL;
#ifdef FEATURE_INTL
// No way to create dcache file with FE characters on US system.
//
if (pdoc && IsFECodePage(GETMIMECP(pdoc)) && !wg.bDBCSEnabled)
if (HasDBCSchar(GETMIMECP(pdoc), (UCHAR *)pcszActualURL, lstrlen(pcszActualURL)))
return;
#endif
if (!(pszFullDcFile = GTR_MALLOC(_MAX_PATH + 1)))
return;
*pszFullDcFile = '\0';
if (!FGetDCacheFilename(pszFullDcFile, _MAX_PATH+1, &pszDcFile, pcszActualURL, mime_type))
goto LErr;
// if ( content_encoding == ENCODING_7BIT
// || content_encoding == ENCODING_8BIT)
// *pfpDc = fopen(pszFullDcFile, "w");
// else
// ascii files convert lf to cr,lf, thus if you already have cr,lf, you end up with
// cr,cr,lf (different from original bits and messed up)
*pfpDc = fopen(pszFullDcFile, "wb");
if (!*pfpDc)
{
LErr:
ERR_ReportError(NULL, errCantSaveFile, pszFullDcFile, NULL);
}
else
*ppszDcFile = GTR_strdup(pszDcFile);
GTR_FREE(pszFullDcFile);
}
static BOOL FAllocFileInfo(CacheFileInformation **ppFileInfo, PCSTR pcszDcFile, PCSTR pcszMime)
{
CacheFileInformation *pFileInfo;
if (pFileInfo = GTR_MALLOC(sizeof(struct _CacheFileInformation)))
{
pFileInfo->pszPath = NULL;
pFileInfo->pszMime = NULL;
if ( pcszDcFile
&& !(pFileInfo->pszPath = GTR_MALLOC(strlen(pcszDcFile) + 1)))
goto LNoMem;
if ( pcszMime
&& !(pFileInfo->pszMime = GTR_MALLOC(strlen(pcszMime) + 1)))
goto LNoMem;
*ppFileInfo = pFileInfo;
return TRUE;
}
LNoMem:
if (pFileInfo)
{
if (pFileInfo->pszPath)
GTR_FREE(pFileInfo->pszPath);
if (pFileInfo->pszMime)
GTR_FREE(pFileInfo->pszMime);
GTR_FREE(pFileInfo);
}
return FALSE;
}
void SetDCacheTime(DCACHETIME *pdctime)
{
DCACHETIME dctime;
SYSTEMTIME st;
GetSystemTime(&st);
dctime.uMins = st.wMinute;
dctime.uHrs = st.wHour;
dctime.uDate = st.wDay;
dctime.uMonth = st.wMonth;
dctime.uYear = st.wYear;
dctime.uSecs = st.wSecond;
dctime.uUnused = 0;
*pdctime = dctime;
}
static BOOL FUpdateCIFInfo( PCSTR pcszURL,
PCSTR pcszDcFile,
DCACHETIME dctExpires,
DCACHETIME dctLastModif,
HTFormat format_inDc,
BOOL fCurDoc)
{
char szFullFn[_MAX_PATH+1];
CacheFileInformation *pFileInfo;
BY_HANDLE_FILE_INFORMATION bhfi;
PSTR pszMime;
XX_Assert(pcszDcFile, ("Unexpected NULL filename"));
GetFullDcPath(szFullFn, pcszDcFile, NULL, _MAX_PATH+1);
if (!FExistsFile(szFullFn, FALSE, &bhfi))
{
XX_Assert(0, ("DCache: Hey, what happened to %s?", pcszDcFile));
return FALSE;
}
if (((bhfi.nFileSizeHigh << sizeof(WORD)) + bhfi.nFileSizeLow) == 0)
{
/* Could be because we got back a null result (ex. from a bogus
* query) or a form that has no associated METHOD and ACTION
* (ref. to bug# 272.
*/
remove(szFullFn);
return FALSE;
}
/* filesize not 0 */
XX_Assert((bhfi.nFileSizeHigh << sizeof(WORD)) + bhfi.nFileSizeLow, (""));
if (Hash_Find(pDynFileHash, pcszURL, NULL, (void **)&pFileInfo) == -1)
{
if (!FAllocFileInfo(&pFileInfo, pcszDcFile, (pszMime = HTAtom_name(format_inDc))))
return FALSE;
pFileInfo->lFilesize = (bhfi.nFileSizeHigh << sizeof(WORD)) + bhfi.nFileSizeLow;
pFileInfo->fRamDoc = FALSE;
pFileInfo->fNoDocCache = FALSE;
pFileInfo->fCurDoc = fCurDoc;
pFileInfo->fCheckedForFreshness = TRUE; /* hot off the wire */
strcpy(pFileInfo->pszPath, pcszDcFile);
XX_Assert(pszMime, ("Unexpected NULL mime string!"));
strcpy(pFileInfo->pszMime, pszMime);
Hash_Add(pDynFileHash, pcszURL, NULL, pFileInfo);
}
/* Update last modified/created time */
if (dctLastModif.dwDCacheTime1 == 0 && dctLastModif.dwDCacheTime2 == 0)
SetDCacheTime(&pFileInfo->dctLastModified);
else
pFileInfo->dctLastModified = dctLastModif;
/* update last access time */
SetDCacheTime(&pFileInfo->dctLastUsed);
/* update expires tag from header info. */
pFileInfo->dctExpires = dctExpires;
PropagateFreshnessToCif();
return TRUE;
}
BOOL FFreshnessCheckNeeded(PCSTR pcszURL)
{
CacheFileInformation *pFileInfo;
if ( gPrefs.iCacheUpdFrequency == CACHE_UPDATE_FREQ_NEVER
|| !FConnected(wg.hWndHidden, 0))
return FALSE;
XX_Assert(gPrefs.iCacheUpdFrequency == CACHE_UPDATE_FREQ_ONCEPERSESS, (""));
if (Hash_Find(pDynFileHash, pcszURL, NULL, (void **)&pFileInfo) != -1)
{
return !(pFileInfo->fCheckedForFreshness);
}
return FALSE;
}
static void UpdateFileDCacheLocal( PCSTR pcszActualURL,
FILE **pfpDc,
PSTR *ppszDcFile,
HTFormat format_inDc,
DCACHETIME dctExpires,
DCACHETIME dctLastModif,
BOOL fAbort,
BOOL fCurDoc,
struct Mwin *tw)
{
char szFullFn[_MAX_PATH+1];
struct _www *w3doc=NULL;
if (!gPrefs.bEnableDiskCache)
return;
if (!*pfpDc)
{
XX_Assert(!*ppszDcFile, ("Filename should be null too!"));
return;
}
#ifdef XX_DEBUG_T
fgetpos(*pfpDc, &fpos);
#endif
if (fclose(*pfpDc))
{
// CleanupDCache(0);
// if (fclose(*pfpDc))
fAbort = TRUE;
}
*pfpDc = NULL;
XX_Assert(*ppszDcFile, ("Null filename unexpected"));
GetFullDcPath(szFullFn, *ppszDcFile, NULL, _MAX_PATH+1);
if (fAbort)
{
remove(szFullFn);
}
else
{
SetFileAttributes(szFullFn, FILE_ATTRIBUTE_READONLY);
FUpdateCIFInfo( pcszActualURL,
*ppszDcFile,
dctExpires,
dctLastModif,
format_inDc,
fCurDoc);
/* Update the expiry time of the w3doc */
if ( Hash_Count(&tw->doc_cache) > 0
&& Hash_Find(&tw->doc_cache, pcszActualURL, NULL, (void **)&w3doc) >= 0)
{
w3doc->dctExpires.dwDCacheTime1 = dctExpires.dwDCacheTime1;
w3doc->dctExpires.dwDCacheTime2 = dctExpires.dwDCacheTime2;
}
}
GTR_FREE(*ppszDcFile);
*ppszDcFile = NULL;
}
/* Wrapper for UpdateFileDCacheLocal so multiple threads don't update CIF
* simultaneously.
*/
void UpdateFileDCache( PCSTR pcszActualURL,
FILE **pfpDc,
PSTR *ppszDcFile,
HTFormat format_inDc,
DCACHETIME dctExpires,
DCACHETIME dctLastModif,
BOOL fAbort,
BOOL fCurDoc,
struct Mwin *tw)
{
XX_Assert(hCIFMutex, (""));
#ifdef TEMP0
XX_DebugMessage("Waiting for hCIFMutex");
#endif
// Set the flag that will cause the cleaning thread to abandon cleaning, which will
// thus release the hCIFMutex. This favors the main thread with regard to accessing
// the CIF
bStopCleaning = TRUE;
WaitForSingleObject(hCIFMutex, INFINITE);
// Once we own the hCIFMutex, we can clear the "request to stop cleaning" flag
bStopCleaning = FALSE;
#ifdef TEMP0
XX_DebugMessage("Got hCIFMutex");
#endif
UpdateFileDCacheLocal( pcszActualURL,
pfpDc,
ppszDcFile,
format_inDc,
dctExpires,
dctLastModif,
fAbort,
fCurDoc,
tw);
SetEvent(hDCacheStartEvent);
ReleaseMutex(hCIFMutex);
#ifdef TEMP0
XX_DebugMessage("Released hCIFMutex");
#endif
}
static BOOL FUpdateBuiltinDCacheLocal( HTFormat mime_type,
PCSTR pcszURL,
char **ppszOrgFile,
DCACHETIME dctExpires,
DCACHETIME dctLastModif,
BOOL fCurDoc,
struct Mwin *tw)
{
char szFullDcFile[_MAX_PATH+1];
char *pszDcFile;
if ( !gPrefs.bEnableDiskCache
|| !*ppszOrgFile)
return FALSE;
if ( !FGetDCacheFilename(szFullDcFile, sizeof(szFullDcFile), &pszDcFile, pcszURL, mime_type)
|| !MoveFile(*ppszOrgFile, szFullDcFile))
{
ERR_ReportError(tw, errCantSaveFile, szFullDcFile, NULL);
return FALSE;
}
SetFileAttributes(szFullDcFile, FILE_ATTRIBUTE_READONLY);
/* fsOrig is also _MAX_PATH + 1 long */
strcpy(*ppszOrgFile, szFullDcFile);
/* Update cache info in hash table here */
return FUpdateCIFInfo( pcszURL,
pszDcFile,
dctExpires,
dctLastModif,
mime_type,
fCurDoc);
}
/* Wrapper for FUpdateBuiltinDCache so multiple threads don't update CIF
* simultaneously.
*/
BOOL FUpdateBuiltinDCache( HTFormat mime_type,
PCSTR pcszURL,
char **ppszOrgFile,
DCACHETIME dctExpires,
DCACHETIME dctLastModif,
BOOL fCurDoc,
struct Mwin *tw)
{
BOOL fRet;
XX_Assert(hCIFMutex, (""));
#ifdef TEMP0
XX_DebugMessage("Waiting for hCIFMutex");
#endif
// Set the flag that will cause the cleaning thread to abandon cleaning, which will
// thus release the hCIFMutex. This favors the main thread with regard to accessing
// the CIF
bStopCleaning = TRUE;
WaitForSingleObject(hCIFMutex, INFINITE);
// Once we own the hCIFMutex, we can clear the "request to stop cleaning" flag
bStopCleaning = FALSE;
#ifdef TEMP0
XX_DebugMessage("Got hCIFMutex");
#endif
fRet = FUpdateBuiltinDCacheLocal( mime_type,
pcszURL,
ppszOrgFile,
dctExpires,
dctLastModif,
fCurDoc,
tw);
SetEvent(hDCacheStartEvent);
ReleaseMutex(hCIFMutex);
#ifdef TEMP0
XX_DebugMessage("Released hCIFMutex");
#endif
return fRet;
}
#if 0
static BOOL FIgnoreDcFind(LPWIN32_FIND_DATA pwfd)
{
if (!(pwfd->dwFileAttributes & FILE_ATTRIBUTE_NORMAL))
return TRUE;
if (pwfd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
return FALSE;
}
#endif
static void DeleteDCacheFile(PCSTR pszDcFile)
{
char szFullFn[_MAX_PATH+1];
GetFullDcPath(szFullFn, pszDcFile, NULL, _MAX_PATH+1);
if ( FExistsFile(szFullFn, FALSE, NULL)
&& ( !SetFileAttributes(szFullFn, FILE_ATTRIBUTE_NORMAL)
|| !DeleteFile(szFullFn)))
{
ERR_ReportError(NULL, errCantDelete, szFullFn, NULL);
}
}
void FlushDCache(HWND hDlg)
{
if (!gPrefs.bEnableDiskCache)
return;
if (resourceMessageBox(hDlg, RES_STRING_FLUSH_CACHE, RES_STRING_FLUSH_TITLE, MB_YESNO | MB_DEFBUTTON2 | MB_ICONEXCLAMATION) != IDYES)
return;
if (!FExistsDir(gPrefs.szCacheLocation, TRUE, FALSE))
return;
CleanupDCacheLocal(DCACHE_WATERMARK_ZERO);
}
void FlushDCacheEntry(PCSTR pcszURL)
{
int ndx;
CacheFileInformation *pFileInfo;
AssertDiskCacheEnabled();
if ((ndx = Hash_Find(pDynFileHash, pcszURL, NULL, (void **)&pFileInfo)) == -1)
return;
DeleteDCacheFile(pFileInfo->pszPath);
Hash_DeleteIndexedEntry(pDynFileHash, ndx);
}
void CmdChangeCacheUpdFrequency(int iCacheUpdFreq)
{
gPrefs.iCacheUpdFrequency = iCacheUpdFreq;
}
const char cszFileFilter[] = "*";
void UpdateDCacheLocation(PCSTR pszNewDCLoc)
{
char szCur[_MAX_PATH+1], szNew[_MAX_PATH+1];
int i, cFiles;
CacheFileInformation *pFileInfo;
HCURSOR hCursorPrev=NULL;
extern HCURSOR hCursorWorking;
if (!gPrefs.bEnableDiskCache)
return;
if (!lstrcmpi(gPrefs.szCacheLocation, pszNewDCLoc))
return;
if (!FExistsDir(pszNewDCLoc, TRUE, FALSE))
{
ERR_ReportError(NULL, errNoDir, pszNewDCLoc, NULL);
return;
}
if (hCursorWorking)
hCursorPrev = SetCursor(hCursorWorking);
GetFullDcPath(szCur, cszAppCIF, NULL, _MAX_PATH+1);
GetFullDcPath(szNew, cszAppCIF, pszNewDCLoc, _MAX_PATH+1);
MoveFile(szCur, szNew);
for (i = 0, cFiles=Hash_Count(pDynFileHash); i<cFiles; i++)
{
Hash_GetIndexedEntry(pDynFileHash, i, NULL, NULL, (void **) &pFileInfo);
XX_Assert(pFileInfo->pszPath, ("Null filename!"));
GetFullDcPath(szCur, pFileInfo->pszPath, NULL, _MAX_PATH+1);
GetFullDcPath(szNew, pFileInfo->pszPath, pszNewDCLoc, _MAX_PATH+1);
if (!MoveFile(szCur, szNew))
{
ERR_ReportError(NULL, errCantMoveFile, szCur, szNew);
}
}
/* RemoveDirectory will fail if dir. is not empty */
RemoveDirectory(gPrefs.szCacheLocation);
strcpy(gPrefs.szCacheLocation, pszNewDCLoc);
FDCacheOverflow(DCACHE_RECALC_SIZE);
if (hCursorPrev)
SetCursor(hCursorPrev);
# undef szFileFind
}
static void GetImageInfoKey(PCImageInfo pImgInfo, PSTR pszKey)
{
const char szKeyFmt[]="%lx";
wsprintf(pszKey, szKeyFmt, (long)pImgInfo);
}
static void HashDestroyOnZero(struct hash_table **ppAuxImgHash)
{
if (Hash_Count(*ppAuxImgHash) == 0)
{
Hash_Destroy(*ppAuxImgHash);
*ppAuxImgHash = NULL;
}
}
void MoveDCacheEntryToAux(PCSTR pcszURL, struct ImageInfo *pImgInfo)
{
int ndx;
CacheFileInformation *pFileInfo;
char szKey[MAX_KEY_LEN];
if (!gPrefs.bEnableDiskCache)
return;
if ((ndx = Hash_Find(pDynFileHash, pImgInfo->actualURL, NULL, &pFileInfo)) == -1)
return;
if (!pAuxImgHash && !(pAuxImgHash = Hash_Create()))
return;
GetImageInfoKey(pImgInfo, szKey);
Hash_Add(pAuxImgHash, szKey, NULL, pFileInfo);
Hash_DeleteIndexedEntry(pDynFileHash, ndx);
}
void MoveAuxEntryToDCache(struct ImageInfo *pImgInfo)
{
char szKey[MAX_KEY_LEN];
int ndx;
CacheFileInformation *pFileInfo;
if (!gPrefs.bEnableDiskCache)
return;
if (!pAuxImgHash)
return;
GetImageInfoKey(pImgInfo, szKey);
if ((ndx = Hash_Find(pAuxImgHash, szKey, NULL, &pFileInfo)) == -1)
{
XX_Assert(FALSE, ("Image info. not found in pAuxImgHash!"));
return;
}
Hash_Add(pDynFileHash, pImgInfo->actualURL, NULL, pFileInfo);
Hash_DeleteIndexedEntry(pAuxImgHash, ndx);
HashDestroyOnZero(&pAuxImgHash);
}
void DeleteAuxEntry(struct ImageInfo *pImgInfo)
{
char szKey[MAX_KEY_LEN];
int ndx;
if (!gPrefs.bEnableDiskCache)
return;
if (!pAuxImgHash)
return;
GetImageInfoKey(pImgInfo, szKey);
ndx = Hash_Find(pAuxImgHash, szKey, NULL, NULL);
XX_Assert(ndx != -1, ("pImgInfo not found in pAuxImgHash!"));
Hash_DeleteIndexedEntry(pAuxImgHash, ndx);
HashDestroyOnZero(&pAuxImgHash);
}
/* Borrowed from GetResolvedURL */
char *GetResolvedURLAux(PCImageInfo pImgInfo, char **ppszPath)
{
CacheFileInformation *pFileInfo;
char szKey[MAX_KEY_LEN];
char szFullFn[_MAX_PATH+1];
int ndx;
PSTR pszResolved, pszReturn;
if (!gPrefs.bEnableDiskCache || !pAuxImgHash)
goto LNotFound;
GetImageInfoKey(pImgInfo, szKey);
if ((ndx = Hash_Find(pAuxImgHash, szKey, NULL, &pFileInfo)) == -1)
goto LNotFound;
GetFullDcPath(szFullFn, pFileInfo->pszPath, NULL, _MAX_PATH+1);
//For the aux. cache, we fake it and assume that we're not
// connected to the net.
if (!FValidDCacheFile(szFullFn, pFileInfo, FALSE, TRUE))
{
Hash_DeleteIndexedEntry(pAuxImgHash, ndx);
HashDestroyOnZero(&pAuxImgHash);
goto LNotFound;
}
pszResolved = GTR_strdup(szFullFn);
pszReturn = MakeURLFromLocalFile(pszResolved);
if (ppszPath)
*ppszPath = pszResolved;
return pszReturn;
LNotFound:
if (ppszPath)
*ppszPath = NULL;
return (pszReturn = GTR_strdup(pImgInfo->actualURL));
}
void CleanupDCache(UINT uFlags)
{
XX_Assert(hDCacheThread, (""));
XX_Assert(hDCacheDoneEvent, (""));
XX_Assert(hDCacheStartEvent, (""));
if (!gPrefs.bEnableDiskCache)
return;
/* Let DwCleanupDCacheProc (separate thread) do all the work */
ResetEvent(hDCacheDoneEvent);
SetEvent(hDCacheStartEvent);
#ifdef TEMP0
XX_DebugMessage("Waiting for hDCacheDoneEvent");
#endif
WaitForSingleObject(hDCacheDoneEvent, INFINITE);
#ifdef TEMP0
XX_DebugMessage("Got hDCacheDoneEvent");
#endif
}
int CbWriteDCache( PCSTR pch,
int cbSize,
int cb,
FILE **pfp,
char **ppszDcFile,
char *pszActualURL,
UINT uFlags,
struct Mwin *tw)
{
FILE *fp;
int cbWritten;
fpos_t fpos;
char szFullFn[_MAX_PATH+1];
if (!(fp = *pfp))
return -1;
if (!gPrefs.bEnableDiskCache)
return -1;
/* Save out current file position. In case of error, new file position
* cannot be determined later (per fwrite spec).
*/
if (fgetpos(fp, &fpos))
return -1;
XX_Assert(cbSize == 1, ("Writing non-byte objects, change following line to cb*cbSize"));
if ((cbWritten = fwrite(pch, cbSize, cb, fp)) != cb)
{
/* error: ran out of disk space? */
CleanupDCache(uFlags);
if (fsetpos(fp, &fpos))
goto LError;
if ((cbWritten = fwrite(pch, cbSize, cb, fp)) != cb)
{
/* failed to write again: give up */
LError:
ERR_ReportError(tw, errCantSaveCache, *ppszDcFile, NULL);
fclose(fp);
GetFullDcPath(szFullFn, *ppszDcFile, NULL, _MAX_PATH+1);
remove(szFullFn);
GTR_FREE(*ppszDcFile);
*pfp = NULL;
*ppszDcFile = NULL;
return -1;
}
}
XX_Assert(!fgetpos(fp, &fpos), (""));
return cbWritten;
}
DWORD WINAPI DwCleanupDCacheProc(LPUINT lpUFlags)
{
XX_Assert(hDCacheMutex, (""));
XX_Assert(hDCacheStartEvent, (""));
XX_Assert(hDCacheDoneEvent, (""));
while (TRUE)
{
#ifdef TEMP0
XX_DebugMessage("Waiting for hDCacheStartEvent");
#endif
WaitForSingleObject(hDCacheStartEvent, INFINITE);
/* should we close this thread? */
if(!hDCacheThread)
return(1);
ResetEvent(hDCacheStartEvent);
#ifdef TEMP0
XX_DebugMessage("Got hDCacheStartEvent");
#endif
if (FDCacheOverflow(DCACHE_WATERMARK_HIGH))
{
#ifdef TEMP0
XX_DebugMessage("Waiting for hCIFMutex");
#endif
WaitForSingleObject(hCIFMutex, INFINITE);
#ifdef TEMP0
XX_DebugMessage("Got hCIFMutex");
#endif
CleanupDCacheLocal(DCACHE_WATERMARK_HIGH);
ReleaseMutex(hCIFMutex);
#ifdef TEMP0
XX_DebugMessage("Released hCIFMutex");
#endif
}
SetEvent(hDCacheDoneEvent);
}
return 0;
}
GLOBALDEF PUBLIC HTProtocol HTDCache = {"dcache", NULL, HTLoadDCache_Async};
#define IsValidDriveCh(ch) isalpha(ch)
static void GetRootFromPath(PCSTR pcszPath, PSTR pszRoot)
{
const char cszCRoot[] = "c:\\";
if ( !pcszPath
|| strlen(pcszPath) < 3
|| !IsValidDriveCh(*pcszPath)
|| *(pcszPath+1) != chColon
|| *(pcszPath+2) != chBSlash)
{
strcpy(pszRoot, cszCRoot);
}
else
{
strncpy(pszRoot, pcszPath, 3);
*(pszRoot+3) = '\0';
}
}
static BOOL FDCacheOverflow(UINT uFlags)
{
char szRoot[10];
DWORD dwDCacheSpaceMax=0;
static DWORD dwClusterSize=0;
static DWORD dwClusters=0;
DWORD dwSectorsPerCluster, dwBytesPerSector;
DWORD dwFreeClusters;
int iPercent;
# define DW_BYTES_PER_SECTOR_DEF 512 //assume 512 bytes per sector
# define DW_SECTORS_PER_CLUSTER_DEF 32 //assume >400MB hard disk
#ifdef TEST_DCACHE_OPTIONS
/* Not checking for overflow is almost tantamount to saying we're
* always overflowing.
*/
if (!fCheckDCacheOverflow)
return TRUE;
#endif
if (uFlags == DCACHE_WATERMARK_ZERO)
return TRUE;
if (!dwClusterSize || uFlags == DCACHE_RECALC_SIZE)
{
GetRootFromPath(gPrefs.szCacheLocation, szRoot);
if ( !GetDiskFreeSpace(szRoot, &dwSectorsPerCluster, &dwBytesPerSector, &dwFreeClusters, &dwClusters)
|| ((dwClusterSize = dwSectorsPerCluster*dwBytesPerSector) == 0))
dwClusterSize = (DW_SECTORS_PER_CLUSTER_DEF * DW_BYTES_PER_SECTOR_DEF);
}
/* dcache is larger of 4Meg or 1% of disk or gPrefs.iCachePercent of disk */
dwDCacheSpaceMax = max( DCACHE_SIZE_MIN,
(DWORD)((dwClusterSize*dwClusters/100)*(max(DCACHE_PERCENT_MIN, gPrefs.iCachePercent))));
#ifdef TEST_DCACHE_OPTIONS
iPercent = (uFlags == DCACHE_WATERMARK_MAX ? 100 :
uFlags == DCACHE_WATERMARK_LOW ? gPrefs.iCachePercentLow :
gPrefs.iCachePercentHigh);
#else
iPercent = (uFlags == DCACHE_WATERMARK_MAX ? DCACHE_PERCENT_MAX :
uFlags == DCACHE_WATERMARK_LOW ? DCACHE_PERCENT_LOW :
DCACHE_PERCENT_HIGH);
#endif
#ifdef DCACHE_LOG
{
const char cszDCLogFmt[]="Dir=%s\tDirSize=%lu\tMaxDCache Size=%lu\nCheck if dcache > %i%%\tCleanup Flag=%i";
char szT[_MAX_PATH+1];
int iFlag;
DWORD dwDir = DwDirSize(gPrefs.szCacheLocation, dwClusterSize);
iFlag = ((dwDCacheSpaceMax/100)*iPercent < DwDirSize(gPrefs.szCacheLocation, dwClusterSize));
wsprintf(szT, cszDCLogFmt, gPrefs.szCacheLocation, dwDir, dwDCacheSpaceMax, iPercent, iFlag);
WriteDCacheLog(szT, DCACHE_LOG_NOFMT);
}
#endif
return ((dwDCacheSpaceMax/100)*iPercent < DwDirSize(gPrefs.szCacheLocation, dwClusterSize));
}
static BOOL FIgnoreDcFileFind(LPWIN32_FIND_DATA pwfd)
{
/* For now don't bother deleting subdirectories */
return ( pwfd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
|| !lstrcmpi(pwfd->cFileName, cszAppCIF)
);
}
//
// Create a hash table that allows lookup of URL given a cache file name
//
// On entry:
// ppFileToURLHash: pointer to pointer to hash table to be created
//
// On exit:
// *ppFileToURLHash: if created, points to new hash table
// returns: TRUE -> hash table was created
// FALSE -> hash table creation failed
//
// Notes:
// Although not common, there are times when we need to determine if a given
// file is in the CIF hash table. However, the CIF hash table allows only
// looking up by URL, not file name. This routine creates another hash table
// that allows looking up using the file name as the key. Currently, the only
// reason needed to perform this lookup is to determine if the file is part of
// the cache. Consequently we don't actually store any info about the files, just
// a big hash table of the file names, which can be used to determine if the file
// is part of the cache or not.
//
static BOOL CreateCacheFileToURLHashTable( struct hash_table **ppFileToURLHash )
{
int i, iMax;
CacheFileInformation *pFileInfo;
char szFullFn[_MAX_PATH+1];
// Make a new hash table for reverse lookup (file name -> URL )
*ppFileToURLHash = Hash_Create();
if ( *ppFileToURLHash ) {
// Iterate through cache hash table, adding each item to the new hash table that
// is indexed by cache file name instead of by URL
for (i=0, iMax=Hash_Count(pDynFileHash); i<iMax; i++)
{
Hash_GetIndexedEntry(pDynFileHash, i, NULL, NULL, &pFileInfo);
GetFullDcPath(szFullFn, pFileInfo->pszPath, NULL, _MAX_PATH+1);
Hash_Add(*ppFileToURLHash, szFullFn, NULL, NULL);
if ( bStopCleaning )
return FALSE;
}
return TRUE;
}
return FALSE;
}
//
// Destroy the hash table that allows lookup of URL given a cache file name
//
// On entry:
// pFileToURLHash: pointer to table to be destoyed
//
// On exit:
// *pFileToURLHash: hash table and it's contents have been freed
//
static void DestroyCacheFileToURLHashTable( struct hash_table *pFileToURLHash )
{
if ( pFileToURLHash )
Hash_Destroy( pFileToURLHash );
}
static BOOL FInDCacheList(PCSTR pcszFile, struct hash_table *pFileToURLHash)
{
int i, iMax;
CacheFileInformation *pFileInfo;
char szFullFn[_MAX_PATH+1];
if (!gPrefs.bEnableDiskCache)
return FALSE;
if ( pFileToURLHash ) {
// If we have a cache file to URL lookup hash table, use it
if ( Hash_Find(pFileToURLHash, pcszFile, NULL, NULL) != -1 )
return TRUE;
} else {
// Otherwise look for it by iterating through the regular hash table
for (i=0, iMax=Hash_Count(pDynFileHash); i<iMax; i++)
{
Hash_GetIndexedEntry(pDynFileHash, i, NULL, NULL, &pFileInfo);
GetFullDcPath(szFullFn, pFileInfo->pszPath, NULL, _MAX_PATH+1);
if (!lstrcmpi(szFullFn, pcszFile))
return TRUE;
// Abandon cleaning effort, assume we would have found it if we kept on looking,
// as this is the "safe" assumption (i.e. file won't be deleted)
if ( bStopCleaning )
return TRUE;
}
}
if (pAuxImgHash)
{
for (i=0, iMax=Hash_Count(pAuxImgHash); i<iMax; i++)
{
Hash_GetIndexedEntry(pAuxImgHash, i, NULL, NULL, &pFileInfo);
GetFullDcPath(szFullFn, pFileInfo->pszPath, NULL, _MAX_PATH+1);
if (!lstrcmpi(szFullFn, pcszFile))
return TRUE;
}
}
return FALSE;
}
#ifdef DCACHE_LOG
const char cszLogFile[]="\\dcache.log";
#endif
static BOOL FOkToDeleteDCacheFile(PCSTR pcszFile, PCSTR pcszUrl)
{
/* Why do we need this function? */
#ifdef DCACHE_LOG
if (!lstrcmpi(pcszFile, &cszLogFile[1]))
return FALSE;
#endif
return TRUE;
}
#ifdef DCACHE_LOG
static void WriteDCacheLog(PCSTR pcszFn, UINT uFlags)
{
const char cszLineFmtCif[]="Deleting CIF file: %s\n";
const char cszLineFmtOther[]="Deleting non-CIF file: %s\n";
const char cszLineFmtClose[]="Closing log file\n";
const char cszLineFmtFound[]="Found file: %s\n";
const char cszLineFmtPresort[]="Found file(presorted): %s\n";
const char cszLineFmtSort[]="Found file(sorted): %s\n";
const char cszLineFmtNone[]="%s\n";
static FILE *fpLog=NULL;
char szLogFile[_MAX_PATH+1];
char szLine[_MAX_PATH+1];
if (uFlags == DCACHE_LOG_CLOSE)
{
if (fpLog)
{
fwrite(cszLineFmtClose, sizeof(char), strlen(cszLineFmtClose), fpLog);
fclose(fpLog);
fpLog=NULL;
}
return;
}
if (!fpLog)
{
PREF_GetTempPath(_MAX_PATH, szLogFile);
strcat(szLogFile, cszLogFile);
fpLog = fopen(szLogFile, "w");
}
wsprintf( szLine,
uFlags == DCACHE_LOG_CIF ? cszLineFmtCif :
uFlags == DCACHE_LOG_OTHER ? cszLineFmtOther :
uFlags == DCACHE_LOG_PRESORT ? cszLineFmtPresort :
uFlags == DCACHE_LOG_SORT ? cszLineFmtSort :
uFlags == DCACHE_LOG_FOUND ? cszLineFmtFound :
cszLineFmtNone,
pcszFn);
fwrite(szLine, sizeof(char), strlen(szLine), fpLog);
}
#endif /* DCACHE_LOG */
/*
* DCache flushing:
* There can be four kinds of files in the disk cache directory:
* 1) Random files that are not part of the disk cache (either user
* put them there or some errors). These files are the first to be
* thrown out.
* 2) Files that are in the CIF (dcache) that are not in the ram cache.
* These are the next files to be thrown out.
* 3) Files that are in the CIF and that are in the ram cache, and
* can be discarded from the ram cache (ex. images with zero refcount)
* These go next.
* 4) Files that are in the CIF and in the ram cache and cannot be
* discarded from ram to reduce memory (either they are currently
* visible or are being referenced by another doc. that cannot be
* discarded. These never get thrown out.
*/
static BOOL FDeleteDCacheRamCache(UINT uFlags);
static void CleanupDCacheLocal(UINT uFlags)
{
char szFileFind[_MAX_PATH+1];
char szFullFn[_MAX_PATH+1];
HANDLE hFind;
WIN32_FIND_DATA wfd;
HCURSOR hCursorPrev=NULL;
struct hash_table *pFileToURLHash = NULL;
DebugCode(PSTR pszFn;)
extern HCURSOR hCursorWorking;
#ifdef XX_DEBUG
XX_DebugMessage("Cleaning up DCache");
#endif
if (!gPrefs.bEnableDiskCache)
return;
if (hCursorWorking)
hCursorPrev = SetCursor(hCursorWorking);
SetCurrentDirectory(gPrefs.szCacheLocation);
if (!FDCacheOverflow(uFlags))
goto LRet;
strcpy(szFileFind, cszFileFilter);
if ((hFind = FindFirstFile(szFileFind, &wfd)) == INVALID_HANDLE_VALUE)
goto LRet;
CreateCacheFileToURLHashTable( &pFileToURLHash );
do
{
/* Deal with:
* --random subdirectories that user may have created
* --readonly, hidden files
*/
if ( bStopCleaning )
break;
DebugCode(pszFn = wfd.cFileName);
GetFullDcPath(szFullFn, wfd.cFileName, NULL, _MAX_PATH+1);
if (FIgnoreDcFileFind(&wfd) || FInDCacheList(szFullFn,pFileToURLHash))
continue;
SetFileAttributes(szFullFn, FILE_ATTRIBUTE_NORMAL);
remove(szFullFn);
WriteDCacheLog(szFullFn, DCACHE_LOG_OTHER);
} while (FindNextFile(hFind, &wfd));
FindClose(hFind);
DestroyCacheFileToURLHashTable( pFileToURLHash );
/* REVIEW (deepaka): make FDCacheOverflow incremental so it doesn't
* recompute used space from scratch.
*/
if ( bStopCleaning ||
(uFlags != DCACHE_WATERMARK_ZERO && !FDCacheOverflow(DCACHE_WATERMARK_LOW))
)
goto LRet;
FDeleteDCacheRamCache(uFlags);
LRet:
if (hCursorPrev)
SetCursor(hCursorPrev);
}
typedef struct _FRESHCHECKEDITEM
{
PSTR pszUrl;
struct _FRESHCHECKEDITEM *pfciNext;
} FCI, FRESHCHECKEDITEM, *PFRESHCHECKEDITEM, *PFCI;
/* Items that are not in cif but were earlier and have been now
* thrown out because we got a fresher version of that url.
* Need to propagate this info. into the cif so that we can
* use the "Update url once per session" feature from the Advanced dlg
*/
static PFCI pfcItems=NULL;
static void AddToFreshnessCheckedList(PCSTR pcszURL)
{
PFCI pfcNewItem;
if (!(pfcNewItem = GTR_MALLOC(sizeof(struct _FRESHCHECKEDITEM))))
return;
if (!(pfcNewItem->pszUrl = GTR_strdup(pcszURL)))
GTR_FREE(pfcNewItem);
pfcNewItem->pfciNext = pfcItems;
pfcItems = pfcNewItem;
}
static void PropagateFreshnessToCif(void)
{
PFCI pfciCur;
struct _CacheFileInformation *pFileInfo;
while (pfciCur = pfcItems)
{
pfcItems = pfcItems->pfciNext;
XX_Assert(pfciCur->pszUrl, (""));
if (Hash_Find(pDynFileHash, pfciCur->pszUrl, NULL, (void **) &pFileInfo) != -1)
pFileInfo->fCheckedForFreshness=TRUE;
GTR_FREE(pfciCur->pszUrl);
GTR_FREE(pfciCur);
}
pfcItems = NULL;
}
void UpdateDCacheFreshness(PCSTR pcszURL, BOOL fDel)
{
struct _CacheFileInformation *pFileInfo;
if (!gPrefs.bEnableDiskCache)
return;
#ifdef DCACHE_LOG
{
const char cszFreshDelFmt[]="Url: %s has been modified. Deleting from dcache and fetching from wire.";
const char cszFreshMarkFmt[]="Url: %s has not been modified. Fetching from dcache.";
char szT[_MAX_PATH+1];
PCSTR pcszFmt;
if (Hash_Find(pDynFileHash, pcszURL, NULL, (void **) &pFileInfo) != -1)
{
if (fDel)
pcszFmt = cszFreshDelFmt;
else
pcszFmt = cszFreshMarkFmt;
wsprintf(szT, pcszFmt, pcszURL);
WriteDCacheLog(szT, DCACHE_LOG_NOFMT);
}
}
#endif
if (fDel)
{
AddToFreshnessCheckedList(pcszURL);
FlushDCacheEntry(pcszURL);
}
else
{
if (Hash_Find(pDynFileHash, pcszURL, NULL, (void **) &pFileInfo) != -1)
pFileInfo->fCheckedForFreshness=TRUE;
}
}
void ResetCIFEntryCurDoc(PCSTR pcszURL)
{
struct _CacheFileInformation *pFileInfo;
if ( gPrefs.bEnableDiskCache
&& Hash_Find(pDynFileHash, pcszURL, NULL, (void **) &pFileInfo) != -1)
{
pFileInfo->fCurDoc=FALSE;
}
}
static void SetCIFEntryRam(PCSTR pcszURL)
{
struct _CacheFileInformation *pFileInfo;
if ( gPrefs.bEnableDiskCache
&& Hash_Find(pDynFileHash, pcszURL, NULL, (void **) &pFileInfo) != -1)
{
pFileInfo->fRamDoc=TRUE;
}
}
static void ResetCIFEntryRam(void)
{
int i, iMax;
struct _CacheFileInformation *pFileInfo;
AssertDiskCacheEnabled();
for (i=0, iMax=Hash_Count(pDynFileHash); i<iMax; i++)
{
if (Hash_GetIndexedEntry(pDynFileHash, i, NULL, NULL, &pFileInfo) != -1)
pFileInfo->fRamDoc = FALSE;
else
XX_Assert(FALSE, (""));
}
}
static PCSTR PcszURLFromRamItem(RAMITEM *pRamItem)
{
if (pRamItem->fImage)
return (pRamItem->pImgInfo->actualURL);
return (pRamItem->pw3doc->szActualURL);
}
static UINT UDeleteNonRamDCache(UINT uFlags)
{
int i;
#ifdef TEST_DCACHE_OPTIONS
int iMax;
#endif
PSTR pszUrl;
struct _CacheFileInformation *pFileInfo;
UINT uRet=FLUSH_DCACHE_CONTINUE;
DebugCode(PSTR pszFn);
#ifdef TEST_DCACHE_OPTIONS
for (i=0, iMax=Hash_Count(pDynFileHash); i<iMax; i++)
{
Hash_GetIndexedEntry(pDynFileHash, i, &pszUrl, NULL, &pFileInfo);
WriteDCacheLog(pFileInfo->pszPath, DCACHE_LOG_PRESORT);
}
#endif
Hash_SortByDataAscending(pDynFileHash);
#ifdef TEST_DCACHE_OPTIONS
for (i=0, iMax=Hash_Count(pDynFileHash); i<iMax; i++)
{
Hash_GetIndexedEntry(pDynFileHash, i, &pszUrl, NULL, &pFileInfo);
WriteDCacheLog(pFileInfo->pszPath, DCACHE_LOG_SORT);
}
#endif
for (i=Hash_Count(pDynFileHash)-1; i>=0; i--)
{
DebugCode(pFileInfo=NULL);
Hash_GetIndexedEntry(pDynFileHash, 0, &pszUrl, NULL, &pFileInfo);
XX_Assert(pFileInfo, (""));
DebugCode(pszFn = pFileInfo->pszPath);
// WriteDCacheLog(pFileInfo->pszPath, DCACHE_LOG_FOUND);
/* As soon as we hit the first doc. in ram, we know we
* are done. All the remaining docs. will also be in ram.
*/
if (pFileInfo->fRamDoc || pFileInfo->fCurDoc)
break;
if (FOkToDeleteDCacheFile(pFileInfo->pszPath, pszUrl))
{
if (FExistsFile(pFileInfo->pszPath, FALSE, NULL))
{
SetFileAttributes(pFileInfo->pszPath, FILE_ATTRIBUTE_NORMAL);
remove(pFileInfo->pszPath);
WriteDCacheLog(pFileInfo->pszPath, DCACHE_LOG_CIF);
}
Hash_DeleteIndexedEntry(pDynFileHash, 0);
if ( bStopCleaning ||
(uFlags != DCACHE_WATERMARK_ZERO && !FDCacheOverflow(DCACHE_WATERMARK_LOW))
)
{
uRet = FLUSH_DCACHE_DONE;
break;
}
}
}
return uRet;
}
static UINT UDeleteRamDCacheItem(RAMITEM *pRamItem, UINT uFlags)
{
/* if (w3Doc) FreeW3Doc
* Update CIF
* if DONE return DONE
* while there are images with refcount == 0
* Delete Image
* Update CIF
* If DONE return DONE
* return CONTINUE
*
* if (fImage)
* Make sure refcount == 0 before freeing it.
*/
int ndx;
XX_Assert(!pRamItem->fImage, (""));
XX_Assert(pRamItem->pw3doc, (""));
XX_Assert(pRamItem->tw, (""));
if (!pRamItem->pw3doc)
return FLUSH_DCACHE_CONTINUE;
ndx = Hash_FindByData(&pRamItem->tw->doc_cache, NULL, NULL, pRamItem->pw3doc);
XX_Assert(ndx != -1, (""));
W3Doc_FreeContents(pRamItem->tw, pRamItem->pw3doc);
Hash_DeleteIndexedEntry(&pRamItem->tw->doc_cache, ndx);
GTR_FREE(pRamItem->pw3doc);
pRamItem->pw3doc = NULL;
/* throw away all images with zero refcount. */
Image_ReduceMemory(0, /*fOKToDelW3Docs=*/FALSE);
if ( uFlags != DCACHE_WATERMARK_ZERO
&& !FDCacheOverflow(DCACHE_WATERMARK_LOW))
return FLUSH_DCACHE_DONE;
return FLUSH_DCACHE_CONTINUE;
}
/*
* returns:
* -1 if RamItem1 < RamItem2
* 0 if RamItem1 = RamItem2
* +1 if RamItem1 > RamItem2
*/
static int CompRamItem(RAMITEM *pRamItem1, RAMITEM *pRamItem2)
{
/* For version 1, images are sorted so that in the victim list
* they come after w3docs in the dcache flushing algo.
*/
if (pRamItem1->fImage ^ pRamItem2->fImage)
return (pRamItem1->fImage - pRamItem2->fImage);
/* Throw out docs. that shouldn't be cached (per the server) first. */
if (pRamItem1->fNoDocCache ^ pRamItem2->fNoDocCache)
return (pRamItem1->fNoDocCache - pRamItem2->fNoDocCache);
/* Throw out item with older lastAccess stamp */
return CompareDCacheTime(pRamItem1->dctLastUsed, pRamItem2->dctLastUsed);
}
static BOOL FW3DocInRamItemList(RAMITEM **ppRamItem,
struct _www *pw3doc)
{
RAMITEM *pRamItemT;
XX_Assert(ppRamItem, (""));
for (pRamItemT = *ppRamItem; pRamItemT; pRamItemT = pRamItemT->next)
{
if (pRamItemT->pw3doc == pw3doc)
return TRUE;
}
return FALSE;
}
BOOL FInsertW3Doc( RAMITEM **ppRamItem,
struct _www *pw3doc,
struct Mwin *tw)
{
RAMITEM *pRamItemNew;
RAMITEM *pRamItemT;
struct _CacheFileInformation *pFileInfo=NULL;
XX_Assert(ppRamItem, (""));
/* Bulletproofing */
if (!gPrefs.bEnableDiskCache)
goto LInserted;
/* Don't insert same w3doc twice.
* Also: play it safe and don't insert current w3doc either. Screws up
* TW_DrawBackground.
*/
if ( FW3DocInRamItemList(ppRamItem, pw3doc)
|| tw->w3doc == pw3doc)
goto LInserted;
if (!(pRamItemNew = (RAMITEM *)GTR_MALLOC(sizeof(RAMITEM))))
return FALSE;
pRamItemNew->fImage=FALSE;
pRamItemNew->pw3doc = pw3doc;
pRamItemNew->tw = tw;
pRamItemNew->next = NULL;
if (Hash_Find(pDynFileHash, PcszURLFromRamItem(pRamItemNew), NULL, (void **) &pFileInfo) != -1)
{
pRamItemNew->fNoDocCache = pFileInfo->fNoDocCache;
pRamItemNew->dctLastUsed = pFileInfo->dctLastUsed;
pRamItemNew->dwSize = (DWORD)pFileInfo->lFilesize;
}
else
{
pRamItemNew->fNoDocCache = FALSE;
pRamItemNew->dctLastUsed.dwDCacheTime1 =
pRamItemNew->dctLastUsed.dwDCacheTime2 = 0;
pRamItemNew->dwSize = 0;
}
pRamItemT = *ppRamItem;
if (!pRamItemT || CompRamItem(pRamItemNew, pRamItemT) < 0)
{
pRamItemNew->next = pRamItemT;
*ppRamItem = pRamItemNew;
goto LInserted;
}
while (pRamItemT->next)
{
if (CompRamItem(pRamItemNew, pRamItemT->next) < 0)
{
pRamItemNew->next = pRamItemT->next;
pRamItemT->next = pRamItemNew;
goto LInserted;
}
pRamItemT = pRamItemT->next;
}
pRamItemT->next = pRamItemNew;
LInserted:
return TRUE;
}
#define FBuildW3DocList(ppRamItem) \
W3Doc_ReduceMemory(0, ppRamItem)
static BOOL FCreateRamCacheVictimList(RAMITEM **ppRamItem)
{
/* For version 1, we are going to simply walk down the list
* of w3docs and insert them into the ram list. Everytime we
* free a w3doc, we walk the list of images in cache and free
* the ones with a zero ref.count. For ver 2, we can implement
* a more sophisticated algo. with this same framework.
*/
if (!FBuildW3DocList(ppRamItem))
return FALSE; //Couldn't create list of w3doc's in ram
return TRUE;
}
static void FreeRamCacheVictimList(RAMITEM *pRamItem)
{
RAMITEM *pRamItemCur;
while (pRamItemCur = pRamItem)
{
pRamItem = pRamItem->next;
GTR_FREE(pRamItemCur);
}
}
static BOOL FDeleteDCacheRamCache(UINT uFlags)
{
RAMITEM *pRamItem=NULL;
RAMITEM *pRamItemT;
BOOL fRet = TRUE;
int i, iMax;
PSTR pszUrl;
struct Mwin *mw;
AssertDiskCacheEnabled();
if (!FCreateRamCacheVictimList(&pRamItem))
{
fRet=FALSE;
goto LDone;
}
/* reset the fRamDoc values of all the CIF files */
ResetCIFEntryRam();
/* Set all files in ram cache to be marked in CIF as being in ram. */
for (mw = Mlist; mw && mw->wintype == GHTML; mw = mw->next)
{
for (i=0, iMax=Hash_Count(&mw->doc_cache); i<iMax; i++)
{
Hash_GetIndexedEntry(&mw->doc_cache, i, &pszUrl, NULL, NULL);
XX_Assert(pszUrl, (""));
SetCIFEntryRam(pszUrl);
}
}
if (UDeleteNonRamDCache(uFlags) == FLUSH_DCACHE_DONE)
goto LDone;
for (pRamItemT = pRamItem; pRamItemT; pRamItemT = pRamItemT->next)
{
if (UDeleteRamDCacheItem(pRamItemT, uFlags) == FLUSH_DCACHE_DONE)
break;
}
LDone:
FreeRamCacheVictimList(pRamItem);
return fRet;
}
/* if (elem1 ">" elem 2) return 1;
* if (elem1 "<" elem 2) return -1;
* return 0;
*
* The dcache flushing algo. will throw out the "smaller" entry first.
*/
int _cdecl x_compare_entries_dcache_ascending(const void *elem1, const void *elem2)
{
struct _CacheFileInformation *pFileInfo1, *pFileInfo2;
pFileInfo1 = ((struct hash_entry *) elem1)->data;
pFileInfo2 = ((struct hash_entry *) elem2)->data;
if (pFileInfo1->fCurDoc ^ pFileInfo2->fCurDoc)
return (pFileInfo1->fCurDoc - pFileInfo2->fCurDoc);
if (pFileInfo1->fRamDoc ^ pFileInfo2->fRamDoc)
return (pFileInfo1->fRamDoc - pFileInfo2->fRamDoc);
if (pFileInfo1->fNoDocCache ^ pFileInfo2->fNoDocCache)
return (pFileInfo2->fNoDocCache - pFileInfo1->fNoDocCache);
/* file1 was accessed more recently than file2. It should be deleted
* after file2. Hence file1 > file2.
*/
return CompareDCacheTime(pFileInfo2->dctLastUsed, pFileInfo1->dctLastUsed);
}
static DWORD DwDirSize(PCSTR pcszDir, DWORD dwClusterSize)
{
char const cszStarDotStar[] = "\\*.*";
char const cszBSlash[] = "\\";
HANDLE hfind;
char szPath[MAX_PATH];
WIN32_FIND_DATA wfd;
DWORD dwSize = 0;
#ifdef XX_DEBUG
static BOOL fShowAssert=TRUE;
static BOOL fAssertShown=FALSE;
#endif
strcpy(szPath, pcszDir);
strcat(szPath, cszStarDotStar);
hfind = FindFirstFile(szPath, &wfd);
if (hfind != INVALID_HANDLE_VALUE)
{
do
{
if (wfd.cFileName[0] != '.')
{
if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
#ifdef XX_DEBUG
if (fShowAssert)
{
// XX_Assert(FALSE, ("\nUnexpected subdir %s found in %s", wfd.cFileName, pcszDir));
fAssertShown=TRUE;
}
#endif
strcpy(szPath, pcszDir);
strcat(szPath, "\\");
strcat(szPath, wfd.cFileName);
// DwDirSize(szPath, dwClusterSize);
}
else
{
/* Cluster rounded */
XX_Assert(dwClusterSize, (""));
dwSize += (wfd.nFileSizeLow + dwClusterSize) -
(wfd.nFileSizeLow % dwClusterSize);
}
}
} while (FindNextFile(hfind, &wfd));
FindClose(hfind);
#ifdef XX_DEBUG
if (fAssertShown)
fShowAssert=FALSE;
#endif
}
return dwSize;
}
#ifdef TEST_DCACHE_OPTIONS
BOOL CALLBACK TestDCacheOptionsDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam,
LPARAM lParam)
{
long hnpHigh, hnpLow;
switch (uMsg)
{
case WM_INITDIALOG:
{
SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_HIGHWATER, UDM_SETRANGE, 0,
MAKELPARAM(100, 0));
SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_HIGHWATER, UDM_SETPOS,
0, (LPARAM) MAKELONG((short) gPrefs.iCachePercentHigh, 0));
SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_LOWWATER, UDM_SETRANGE, 0,
MAKELPARAM(100, 0));
SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_LOWWATER, UDM_SETPOS,
0, (LPARAM) MAKELONG((short) gPrefs.iCachePercentLow, 0));
/* By default (for this dlg. only) ignore overflow condition. */
CheckDlgButton( hDlg, IDC_ADVANCED_TEST_OVERFLOW, TRUE);
}
// fall through
return TRUE;
case WM_NOTIFY:
{
NMHDR *lpnm = (NMHDR *) lParam;
switch (lpnm->code)
{
case PSN_QUERYCANCEL:
SetWindowLong( hDlg, DWL_MSGRESULT, FALSE );
return TRUE;
case PSN_KILLACTIVE:
SetWindowLong( hDlg,DWL_MSGRESULT, FALSE );
return TRUE;
case PSN_RESET:
break;
case PSN_APPLY:
{
// Get history field values
hnpHigh = SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_HIGHWATER, UDM_GETPOS, 0, 0 );
hnpLow = SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_LOWWATER, UDM_GETPOS, 0, 0 );
if ( HIWORD(hnpHigh) == 0 )
gPrefs.iCachePercentHigh = LOWORD(hnpHigh);
if ( HIWORD(hnpLow) == 0 )
gPrefs.iCachePercentLow = LOWORD(hnpLow);
if (gPrefs.iCachePercentHigh < gPrefs.iCachePercentLow)
gPrefs.iCachePercentHigh = gPrefs.iCachePercentLow;
}
}
}
break;
case WM_COMMAND:
{
switch (GET_WM_COMMAND_ID(wParam, lParam))
{
case IDC_ADVANCED_TEST_HIGHWATER:
case IDC_ADVANCED_TEST_LOWWATER:
{
hnpHigh = SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_HIGHWATER, UDM_GETPOS, 0, 0 );
hnpLow = SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_LOWWATER, UDM_GETPOS, 0, 0 );
if ( (HIWORD(hnpHigh) == 0)
&& (HIWORD(hnpLow) == 0))
{
if (LOWORD(hnpHigh) < LOWORD(hnpLow))
SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_HIGHWATER, UDM_SETPOS,
0, (LPARAM) MAKELONG((short) LOWORD(hnpLow), 0));
else if (LOWORD(hnpLow) > LOWORD(hnpHigh))
SendDlgItemMessage( hDlg, IDC_ADVANCED_TEST_LOWWATER, UDM_SETPOS,
0, (LPARAM) MAKELONG((short) LOWORD(hnpHigh), 0));
}
break;
}
case IDC_ADVANCED_TEST_FLUSH_DCACHE_THREAD:
{
/* Clean up dcache in a thread (retail scenario) */
fCheckDCacheOverflow = !IsDlgButtonChecked( hDlg, IDC_ADVANCED_TEST_OVERFLOW );
CleanupDCache(DCACHE_WATERMARK_MAX);
fCheckDCacheOverflow = TRUE;
break;
}
case IDC_ADVANCED_TEST_FLUSH_DCACHE:
{
/* Clean up dcache in current thread itself. Just for testing.
*
* Should we put up a message box saying that we're waiting?
*/
#ifdef TEMP0
XX_DebugMessage("Waiting for hCIFMutex");
#endif
WaitForSingleObject(hCIFMutex, INFINITE);
#ifdef TEMP0
XX_DebugMessage("Got hCIFMutex");
#endif
fCheckDCacheOverflow = !IsDlgButtonChecked( hDlg, IDC_ADVANCED_TEST_OVERFLOW );
CleanupDCacheLocal(DCACHE_WATERMARK_MAX);
ReleaseMutex(hCIFMutex);
#ifdef TEMP0
XX_DebugMessage("Released hCIFMutex");
#endif
fCheckDCacheOverflow = TRUE;
break;
}
case IDC_ADVANCED_TEST_REREAD_CIF:
{
/* Discard current contents of (in mem.) cif file
* and re-read from disk
*/
ReReadDynCIF();
break;
}
}
break;
}
}
return FALSE;
}
/* Stolen from Advanced Options dialog procs. */
#define NUM_OPTION_PAGES 1
void CC_OnItem_TestDCacheOptions(HWND hWnd)
{
const char cszCaption[] = "Test Disk Cache Options";
HPROPSHEETPAGE hOptPage[NUM_OPTION_PAGES]; // array to hold handles to pages
PROPSHEETPAGE psPage; // struct used to create prop sheet pages
PROPSHEETHEADER psHeader; // struct used to run property sheet
UINT nPageIndex;
// zero out structures
memset(&hOptPage,0,sizeof(hOptPage));
memset(&psPage,0,sizeof(psPage));
memset(&psHeader,0,sizeof(psHeader));
// fill out common data property sheet page struct
psPage.dwSize = sizeof(psPage);
psPage.dwFlags = 0;
psPage.hInstance = wg.hInstance;
// create a property sheet page for each page
for (nPageIndex = 0;nPageIndex < NUM_OPTION_PAGES;nPageIndex++) {
switch ( nPageIndex )
{
case 0:
psPage.pfnDlgProc = TestDCacheOptionsDlgProc;
psPage.pszTemplate = MAKEINTRESOURCE( IDD_ADVANCED_TEST );
break;
}
// set a pointer to the PAGEINFO struct as the private data for this
// page
psPage.lParam = (LPARAM) nPageIndex;
hOptPage[nPageIndex] = CreatePropertySheetPage(&psPage);
if (!hOptPage[nPageIndex]) {
UINT nFreeIndex;
for (nFreeIndex=0;nFreeIndex<nPageIndex;nFreeIndex++)
DestroyPropertySheetPage(hOptPage[nFreeIndex]);
return;
}
}
// fill out property sheet header struct
psHeader.dwSize = sizeof(psHeader);
psHeader.dwFlags = 0;
psHeader.hwndParent = hWnd;
psHeader.hInstance = wg.hInstance;
psHeader.nPages = NUM_OPTION_PAGES;
psHeader.phpage = hOptPage;
psHeader.pszCaption = cszCaption;
PropertySheet(&psHeader);
}
#endif /* TEST_DCACHE_OPTIONS */