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-rw-r--r--indra/newview/llappviewer.cpp43
-rw-r--r--indra/newview/llappviewer.h2
-rw-r--r--indra/newview/lltexturecache.cpp50
-rw-r--r--indra/newview/lltexturecache.h3
4 files changed, 77 insertions, 21 deletions
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 11c252406a..cdd553b9b4 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -3000,9 +3000,36 @@ void LLAppViewer::migrateCacheDirectory()
#endif // LL_WINDOWS || LL_DARWIN
}
+//static
+S32 LLAppViewer::getCacheVersion()
+{
+ static const S32 cache_version = 7;
+
+ return cache_version ;
+}
+
bool LLAppViewer::initCache()
{
mPurgeCache = false;
+ BOOL disable_texture_cache = FALSE ;
+ BOOL read_only = mSecondInstance ? TRUE : FALSE;
+ LLAppViewer::getTextureCache()->setReadOnly(read_only) ;
+
+ if (gSavedSettings.getS32("LocalCacheVersion") != LLAppViewer::getCacheVersion())
+ {
+ if(read_only)
+ {
+ disable_texture_cache = TRUE ; //if the cache version of this viewer is different from the running one, this viewer can not use the texture cache.
+ }
+ else
+ {
+ mPurgeCache = true; // Purge cache if the version number is different.
+ gSavedSettings.setS32("LocalCacheVersion", LLAppViewer::getCacheVersion());
+ }
+ }
+
+ if(!read_only)
+ {
// Purge cache if user requested it
if (gSavedSettings.getBOOL("PurgeCacheOnStartup") ||
gSavedSettings.getBOOL("PurgeCacheOnNextStartup"))
@@ -3010,16 +3037,6 @@ bool LLAppViewer::initCache()
gSavedSettings.setBOOL("PurgeCacheOnNextStartup", false);
mPurgeCache = true;
}
- // Purge cache if it belongs to an old version
- else
- {
- static const S32 cache_version = 6;
- if (gSavedSettings.getS32("LocalCacheVersion") != cache_version)
- {
- mPurgeCache = true;
- gSavedSettings.setS32("LocalCacheVersion", cache_version);
- }
- }
// We have moved the location of the cache directory over time.
migrateCacheDirectory();
@@ -3034,6 +3051,7 @@ bool LLAppViewer::initCache()
gSavedSettings.setString("CacheLocation", new_cache_location);
gSavedSettings.setString("CacheLocationTopFolder", gDirUtilp->getBaseFileName(new_cache_location));
}
+ }
if (!gDirUtilp->setCacheDir(gSavedSettings.getString("CacheLocation")))
{
@@ -3042,7 +3060,7 @@ bool LLAppViewer::initCache()
gSavedSettings.setString("CacheLocationTopFolder", "");
}
- if (mPurgeCache)
+ if (mPurgeCache && !read_only)
{
LLSplashScreen::update(LLTrans::getString("StartupClearingCache"));
purgeCache();
@@ -3052,13 +3070,12 @@ bool LLAppViewer::initCache()
// Init the texture cache
// Allocate 80% of the cache size for textures
- BOOL read_only = mSecondInstance ? TRUE : FALSE;
const S32 MB = 1024*1024;
S64 cache_size = (S64)(gSavedSettings.getU32("CacheSize")) * MB;
const S64 MAX_CACHE_SIZE = 1024*MB;
cache_size = llmin(cache_size, MAX_CACHE_SIZE);
S64 texture_cache_size = ((cache_size * 8)/10);
- S64 extra = LLAppViewer::getTextureCache()->initCache(LL_PATH_CACHE, texture_cache_size, read_only);
+ S64 extra = LLAppViewer::getTextureCache()->initCache(LL_PATH_CACHE, texture_cache_size, disable_texture_cache);
texture_cache_size -= extra;
LLSplashScreen::update(LLTrans::getString("StartupInitializingVFS"));
diff --git a/indra/newview/llappviewer.h b/indra/newview/llappviewer.h
index a915b7fa50..60645c46d4 100644
--- a/indra/newview/llappviewer.h
+++ b/indra/newview/llappviewer.h
@@ -102,6 +102,8 @@ public:
static LLImageDecodeThread* getImageDecodeThread() { return sImageDecodeThread; }
static LLTextureFetch* getTextureFetch() { return sTextureFetch; }
+ static S32 getCacheVersion() ;
+
const std::string& getSerialNumber() { return mSerialNumber; }
bool getPurgeCache() const { return mPurgeCache; }
diff --git a/indra/newview/lltexturecache.cpp b/indra/newview/lltexturecache.cpp
index 7a0712f8aa..290ac8dc04 100644
--- a/indra/newview/lltexturecache.cpp
+++ b/indra/newview/lltexturecache.cpp
@@ -742,7 +742,7 @@ LLTextureCache::LLTextureCache(bool threaded)
mHeaderMutex(NULL),
mListMutex(NULL),
mHeaderAPRFile(NULL),
- mReadOnly(FALSE),
+ mReadOnly(TRUE), //do not allow to change the texture cache until setReadOnly() is called.
mTexturesSizeTotal(0),
mDoPurge(FALSE)
{
@@ -929,13 +929,16 @@ U32 LLTextureCache::sCacheMaxEntries = MAX_REASONABLE_FILE_SIZE / TEXTURE_CACHE_
S64 LLTextureCache::sCacheMaxTexturesSize = 0; // no limit
const char* entries_filename = "texture.entries";
const char* cache_filename = "texture.cache";
-const char* textures_dirname = "textures";
+const char* old_textures_dirname = "textures";
+//change the location of the texture cache to prevent from being deleted by old version viewers.
+const char* textures_dirname = "texturecache";
void LLTextureCache::setDirNames(ELLPath location)
{
std::string delem = gDirUtilp->getDirDelimiter();
- mHeaderEntriesFileName = gDirUtilp->getExpandedFilename(location, entries_filename);
- mHeaderDataFileName = gDirUtilp->getExpandedFilename(location, cache_filename);
+
+ mHeaderEntriesFileName = gDirUtilp->getExpandedFilename(location, textures_dirname, entries_filename);
+ mHeaderDataFileName = gDirUtilp->getExpandedFilename(location, textures_dirname, cache_filename);
mTexturesDirName = gDirUtilp->getExpandedFilename(location, textures_dirname);
}
@@ -947,15 +950,37 @@ void LLTextureCache::purgeCache(ELLPath location)
{
setDirNames(location);
llassert_always(mHeaderAPRFile == NULL);
- LLAPRFile::remove(mHeaderEntriesFileName, getLocalAPRFilePool());
- LLAPRFile::remove(mHeaderDataFileName, getLocalAPRFilePool());
+
+ //remove the legacy cache if exists
+ std::string texture_dir = mTexturesDirName ;
+ mTexturesDirName = gDirUtilp->getExpandedFilename(location, old_textures_dirname);
+ if(LLFile::isdir(mTexturesDirName))
+ {
+ std::string file_name = gDirUtilp->getExpandedFilename(location, entries_filename);
+ LLAPRFile::remove(file_name, getLocalAPRFilePool());
+
+ file_name = gDirUtilp->getExpandedFilename(location, cache_filename);
+ LLAPRFile::remove(file_name, getLocalAPRFilePool());
+
+ purgeAllTextures(true);
+ }
+ mTexturesDirName = texture_dir ;
}
+
+ //remove the current texture cache.
purgeAllTextures(true);
}
-S64 LLTextureCache::initCache(ELLPath location, S64 max_size, BOOL read_only)
+//is called in the main thread before initCache(...) is called.
+void LLTextureCache::setReadOnly(BOOL read_only)
{
mReadOnly = read_only;
+}
+
+//called in the main thread.
+S64 LLTextureCache::initCache(ELLPath location, S64 max_size, BOOL disable_texture_cache)
+{
+ llassert_always(getPending() == 0) ; //should not start accessing the texture cache before initialized.
S64 header_size = (max_size * 2) / 10;
S64 max_entries = header_size / TEXTURE_CACHE_ENTRY_SIZE;
@@ -968,6 +993,15 @@ S64 LLTextureCache::initCache(ELLPath location, S64 max_size, BOOL read_only)
sCacheMaxTexturesSize = max_size;
max_size -= sCacheMaxTexturesSize;
+ if(disable_texture_cache) //the texture cache is disabled
+ {
+ llinfos << "The texture cache is disabled!" << llendl ;
+ setReadOnly(TRUE) ;
+ purgeAllTextures(true);
+
+ return max_size ;
+ }
+
LL_INFOS("TextureCache") << "Headers: " << sCacheMaxEntries
<< " Textures size: " << sCacheMaxTexturesSize/(1024*1024) << " MB" << LL_ENDL;
@@ -986,6 +1020,8 @@ S64 LLTextureCache::initCache(ELLPath location, S64 max_size, BOOL read_only)
readHeaderCache();
purgeTextures(true); // calc mTexturesSize and make some room in the texture cache if we need it
+ llassert_always(getPending() == 0) ; //should not start accessing the texture cache before initialized.
+
return max_size; // unused cache space
}
diff --git a/indra/newview/lltexturecache.h b/indra/newview/lltexturecache.h
index ca8815ee7e..5dc06ff401 100644
--- a/indra/newview/lltexturecache.h
+++ b/indra/newview/lltexturecache.h
@@ -110,7 +110,8 @@ public:
/*virtual*/ S32 update(U32 max_time_ms);
void purgeCache(ELLPath location);
- S64 initCache(ELLPath location, S64 maxsize, BOOL read_only);
+ void setReadOnly(BOOL read_only) ;
+ S64 initCache(ELLPath location, S64 maxsize, BOOL disable_texture_cache);
handle_t readFromCache(const std::string& local_filename, const LLUUID& id, U32 priority, S32 offset, S32 size,
ReadResponder* responder);
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 14:10:47 +0000