Revert "Merge branch 'master' of https://bitbucket.org/lindenlab/viewer into DRTVWR-519"

This reverts commit e61f485a04dc8c8ac6bcf6a24848359092884d14, reversing
changes made to 00c47d079f7e958e473ed4083a7f7691fa02dcd5.

1 files changed, 0 insertions, 327 deletions

diff --git a/indra/llfilesystem/lldiskcache.cpp b/indra/llfilesystem/lldiskcache.cpp
deleted file mode 100644
index c9f7684b5a..0000000000
--- a/indra/llfilesystem/lldiskcache.cpp
+++ /dev/null
@@ -1,327 +0,0 @@
-/**
- * @file lldiskcache.cpp
- * @brief The disk cache implementation.
- *
- * Note: Rather than keep the top level function comments up
- * to date in both the source and header files, I elected to
- * only have explicit comments about each function and variable
- * in the header - look there for details. The same is true for
- * description of how this code is supposed to work.
- *
- * $LicenseInfo:firstyear=2009&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2020, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
-
-#include "linden_common.h"
-#include "llassettype.h"
-#include "lldir.h"
-#include <boost/filesystem.hpp>
-#include <boost/range/iterator_range.hpp>
-#include <chrono>
-
-#include "lldiskcache.h"
-
-LLDiskCache::LLDiskCache(const std::string cache_dir,
-                         const int max_size_bytes,
-                         const bool enable_cache_debug_info) :
-    mCacheDir(cache_dir),
-    mMaxSizeBytes(max_size_bytes),
-    mEnableCacheDebugInfo(enable_cache_debug_info)
-{
-    mCacheFilenamePrefix = "sl_cache";
-
-    LLFile::mkdir(cache_dir);
-}
-
-void LLDiskCache::purge()
-{
-    if (mEnableCacheDebugInfo)
-    {
-        LL_INFOS() << "Total dir size before purge is " << dirFileSize(mCacheDir) << LL_ENDL;
-    }
-
-    auto start_time = std::chrono::high_resolution_clock::now();
-
-    typedef std::pair<std::time_t, std::pair<uintmax_t, std::string>> file_info_t;
-    std::vector<file_info_t> file_info;
-
-#if LL_WINDOWS
-    std::wstring cache_path(utf8str_to_utf16str(mCacheDir));
-#else
-    std::string cache_path(mCacheDir);
-#endif
-    if (boost::filesystem::is_directory(cache_path))
-    {
-        for (auto& entry : boost::make_iterator_range(boost::filesystem::directory_iterator(cache_path), {}))
-        {
-            if (boost::filesystem::is_regular_file(entry))
-            {
-                if (entry.path().string().find(mCacheFilenamePrefix) != std::string::npos)
-                {
-                    uintmax_t file_size = boost::filesystem::file_size(entry);
-                    const std::string file_path = entry.path().string();
-                    const std::time_t file_time = boost::filesystem::last_write_time(entry);
-
-                    file_info.push_back(file_info_t(file_time, { file_size, file_path }));
-                }
-            }
-        }
-    }
-
-    std::sort(file_info.begin(), file_info.end(), [](file_info_t& x, file_info_t& y)
-    {
-        return x.first > y.first;
-    });
-
-    LL_INFOS() << "Purging cache to a maximum of " << mMaxSizeBytes << " bytes" << LL_ENDL;
-
-    uintmax_t file_size_total = 0;
-    for (file_info_t& entry : file_info)
-    {
-        file_size_total += entry.second.first;
-
-        std::string action = "";
-        if (file_size_total > mMaxSizeBytes)
-        {
-            action = "DELETE:";
-            boost::filesystem::remove(entry.second.second);
-        }
-        else
-        {
-            action = "  KEEP:";
-        }
-
-        if (mEnableCacheDebugInfo)
-        {
-            // have to do this because of LL_INFO/LL_END weirdness
-            std::ostringstream line;
-
-            line << action << "  ";
-            line << entry.first << "  ";
-            line << entry.second.first << "  ";
-            line << entry.second.second;
-            line << " (" << file_size_total << "/" << mMaxSizeBytes << ")";
-            LL_INFOS() << line.str() << LL_ENDL;
-        }
-    }
-
-    if (mEnableCacheDebugInfo)
-    {
-        auto end_time = std::chrono::high_resolution_clock::now();
-        auto execute_time = std::chrono::duration_cast<std::chrono::milliseconds>(end_time - start_time).count();
-        LL_INFOS() << "Total dir size after purge is " << dirFileSize(mCacheDir) << LL_ENDL;
-        LL_INFOS() << "Cache purge took " << execute_time << " ms to execute for " << file_info.size() << " files" << LL_ENDL;
-    }
-}
-
-const std::string LLDiskCache::assetTypeToString(LLAssetType::EType at)
-{
-    /**
-     * Make use of the handy C++17  feature that allows
-     * for inline initialization of an std::map<>
-     */
-    typedef std::map<LLAssetType::EType, std::string> asset_type_to_name_t;
-    asset_type_to_name_t asset_type_to_name =
-    {
-        { LLAssetType::AT_TEXTURE, "TEXTURE" },
-        { LLAssetType::AT_SOUND, "SOUND" },
-        { LLAssetType::AT_CALLINGCARD, "CALLINGCARD" },
-        { LLAssetType::AT_LANDMARK, "LANDMARK" },
-        { LLAssetType::AT_SCRIPT, "SCRIPT" },
-        { LLAssetType::AT_CLOTHING, "CLOTHING" },
-        { LLAssetType::AT_OBJECT, "OBJECT" },
-        { LLAssetType::AT_NOTECARD, "NOTECARD" },
-        { LLAssetType::AT_CATEGORY, "CATEGORY" },
-        { LLAssetType::AT_LSL_TEXT, "LSL_TEXT" },
-        { LLAssetType::AT_LSL_BYTECODE, "LSL_BYTECODE" },
-        { LLAssetType::AT_TEXTURE_TGA, "TEXTURE_TGA" },
-        { LLAssetType::AT_BODYPART, "BODYPART" },
-        { LLAssetType::AT_SOUND_WAV, "SOUND_WAV" },
-        { LLAssetType::AT_IMAGE_TGA, "IMAGE_TGA" },
-        { LLAssetType::AT_IMAGE_JPEG, "IMAGE_JPEG" },
-        { LLAssetType::AT_ANIMATION, "ANIMATION" },
-        { LLAssetType::AT_GESTURE, "GESTURE" },
-        { LLAssetType::AT_SIMSTATE, "SIMSTATE" },
-        { LLAssetType::AT_LINK, "LINK" },
-        { LLAssetType::AT_LINK_FOLDER, "LINK_FOLDER" },
-        { LLAssetType::AT_MARKETPLACE_FOLDER, "MARKETPLACE_FOLDER" },
-        { LLAssetType::AT_WIDGET, "WIDGET" },
-        { LLAssetType::AT_PERSON, "PERSON" },
-        { LLAssetType::AT_MESH, "MESH" },
-        { LLAssetType::AT_SETTINGS, "SETTINGS" },
-        { LLAssetType::AT_UNKNOWN, "UNKNOWN" }
-    };
-
-    asset_type_to_name_t::iterator iter = asset_type_to_name.find(at);
-    if (iter != asset_type_to_name.end())
-    {
-        return iter->second;
-    }
-
-    return std::string("UNKNOWN");
-}
-
-const std::string LLDiskCache::metaDataToFilepath(const std::string id,
-        LLAssetType::EType at,
-        const std::string extra_info)
-{
-    std::ostringstream file_path;
-
-    file_path << mCacheDir;
-    file_path << gDirUtilp->getDirDelimiter();
-    file_path << mCacheFilenamePrefix;
-    file_path << "_";
-    file_path << id;
-    file_path << "_";
-    file_path << (extra_info.empty() ? "0" : extra_info);
-    //file_path << "_";
-    //file_path << assetTypeToString(at); // see  SL-14210 Prune descriptive tag from new cache filenames
-                                          // for details of why it was removed. Note that if you put it
-                                          // back or change the format of the filename, the cache files
-                                          // files will be invalidated (and perhaps, more importantly,
-                                          // never deleted unless you delete them manually).
-    file_path << ".asset";
-
-    return file_path.str();
-}
-
-void LLDiskCache::updateFileAccessTime(const std::string file_path)
-{
-    /**
-     * Threshold in time_t units that is used to decide if the last access time
-     * time of the file is updated or not. Added as a precaution for the concern
-     * outlined in SL-14582  about frequent writes on older SSDs reducing their
-     * lifespan. I think this is the right place for the threshold value - rather
-     * than it being a pref - do comment on that Jira if you disagree...
-     *
-     * Let's start with 1 hour in time_t units and see how that unfolds
-     */
-    const std::time_t time_threshold = 1 * 60 * 60;
-
-    // current time
-    const std::time_t cur_time = std::time(nullptr);
-
-#if LL_WINDOWS
-    // file last write time
-    const std::time_t last_write_time = boost::filesystem::last_write_time(utf8str_to_utf16str(file_path));
-
-    // delta between cur time and last time the file was written
-    const std::time_t delta_time = cur_time - last_write_time;
-
-    // we only write the new value if the time in time_threshold has elapsed
-    // before the last one
-    if (delta_time > time_threshold)
-    {
-        boost::filesystem::last_write_time(utf8str_to_utf16str(file_path), cur_time);
-    }
-#else
-    // file last write time
-    const std::time_t last_write_time = boost::filesystem::last_write_time(file_path);
-
-    // delta between cur time and last time the file was written
-    const std::time_t delta_time = cur_time - last_write_time;
-
-    // we only write the new value if the time in time_threshold has elapsed
-    // before the last one
-    if (delta_time > time_threshold)
-    {
-        boost::filesystem::last_write_time(file_path, cur_time);
-    }
-#endif
-}
-
-const std::string LLDiskCache::getCacheInfo()
-{
-    std::ostringstream cache_info;
-
-    F32 max_in_mb = (F32)mMaxSizeBytes / (1024.0 * 1024.0);
-    F32 percent_used = ((F32)dirFileSize(mCacheDir) / (F32)mMaxSizeBytes) * 100.0;
-
-    cache_info << std::fixed;
-    cache_info << std::setprecision(1);
-    cache_info << "Max size " << max_in_mb << " MB ";
-    cache_info << "(" << percent_used << "% used)";
-
-    return cache_info.str();
-}
-
-void LLDiskCache::clearCache()
-{
-    /**
-     * See notes on performance in dirFileSize(..) - there may be
-     * a quicker way to do this by operating on the parent dir vs
-     * the component files but it's called infrequently so it's
-     * likely just fine
-     */
-#if LL_WINDOWS
-    std::wstring cache_path(utf8str_to_utf16str(mCacheDir));
-#else
-    std::string cache_path(mCacheDir);
-#endif
-    if (boost::filesystem::is_directory(cache_path))
-    {
-        for (auto& entry : boost::make_iterator_range(boost::filesystem::directory_iterator(cache_path), {}))
-        {
-            if (boost::filesystem::is_regular_file(entry))
-            {
-                if (entry.path().string().find(mCacheFilenamePrefix) != std::string::npos)
-                {
-                    boost::filesystem::remove(entry);
-                }
-            }
-        }
-    }
-}
-
-uintmax_t LLDiskCache::dirFileSize(const std::string dir)
-{
-    uintmax_t total_file_size = 0;
-
-    /**
-     * There may be a better way that works directly on the folder (similar to
-     * right clicking on a folder in the OS and asking for size vs right clicking
-     * on all files and adding up manually) but this is very fast - less than 100ms
-     * for 10,000 files in my testing so, so long as it's not called frequently,
-     * it should be okay. Note that's it's only currently used for logging/debugging
-     * so if performance is ever an issue, optimizing this or removing it altogether,
-     * is an easy win.
-     */
-#if LL_WINDOWS
-    std::wstring dir_path(utf8str_to_utf16str(dir));
-#else
-    std::string dir_path(dir);
-#endif
-    if (boost::filesystem::is_directory(dir_path))
-    {
-        for (auto& entry : boost::make_iterator_range(boost::filesystem::directory_iterator(dir_path), {}))
-        {
-            if (boost::filesystem::is_regular_file(entry))
-            {
-                if (entry.path().string().find(mCacheFilenamePrefix) != std::string::npos)
-                {
-                    total_file_size += boost::filesystem::file_size(entry);
-                }
-            }
-        }
-    }
-
-    return total_file_size;
-}