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Minor file GC improvements.

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GitOrigin-RevId: a14b6e219ad90537875108b3e42473bf33267855
This commit is contained in:
levlam 2020-03-02 02:41:47 +03:00
parent 751dae9e64
commit 0b30530260
3 changed files with 13 additions and 14 deletions
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25
td/telegram/files/FileGcWorker.cpp
View File

@ -26,16 +26,6 @@ namespace td {
int VERBOSITY_NAME(file_gc) = VERBOSITY_NAME(INFO);
void FileGcWorker::do_remove_file(const FullFileInfo &info) {
// LOG(WARNING) << "Gc remove file: " << tag("path", file) << tag("mtime", stat.mtime_nsec_ / 1000000000)
// << tag("atime", stat.atime_nsec_ / 1000000000);
// TODO: remove file from database too
auto status = unlink(info.path);
LOG_IF(WARNING, status.is_error()) << "Failed to unlink file during files gc: " << status;
send_closure(G()->file_manager(), &FileManager::on_file_unlink,
FullLocalFileLocation(info.file_type, info.path, info.mtime_nsec));
}
void FileGcWorker::run_gc(const FileGcParameters &parameters, std::vector<FullFileInfo> files,
Promise<FileStats> promise) {
auto begin_time = Time::now();
@ -92,8 +82,17 @@ void FileGcWorker::run_gc(const FileGcParameters &parameters, std::vector<FullFi
FileStats new_stats;
new_stats.split_by_owner_dialog_id = parameters.dialog_limit != 0;
// Remove all files with atime > now - max_time_from_last_access
auto do_remove_file = [](const FullFileInfo &info) {
auto status = unlink(info.path);
LOG_IF(WARNING, status.is_error()) << "Failed to unlink file \"" << info.path << "\" during files gc: " << status;
send_closure(G()->file_manager(), &FileManager::on_file_unlink,
FullLocalFileLocation(info.file_type, info.path, info.mtime_nsec));
};
double now = Clocks::system();
// Keep all immune files
// Remove all files with (atime > now - max_time_from_last_access)
td::remove_if(files, [&](const FullFileInfo &info) {
if (token_) {
return false;
@ -113,14 +112,14 @@ void FileGcWorker::run_gc(const FileGcParameters &parameters, std::vector<FullFi
new_stats.add(FullFileInfo(info));
return true;
}
if (static_cast<double>(info.mtime_nsec / 1000000000) > now - parameters.immunity_delay) {
if (info.mtime_nsec * 1e-9 > now - parameters.immunity_delay) {
// new files are immune to gc
time_immunity_ignored_cnt++;
new_stats.add(FullFileInfo(info));
return true;
}
if (static_cast<double>(info.atime_nsec / 1000000000) < now - parameters.max_time_from_last_access) {
if (info.atime_nsec * 1e-9 < now - parameters.max_time_from_last_access) {
do_remove_file(info);
total_removed_size += info.size;
remove_by_atime_cnt++;

1
td/telegram/files/FileGcWorker.h
View File

@ -28,7 +28,6 @@ class FileGcWorker : public Actor {
private:
ActorShared<> parent_;
CancellationToken token_;
void do_remove_file(const FullFileInfo &info);
};
} // namespace td

1
td/telegram/files/FileManager.cpp
View File

@ -1020,6 +1020,7 @@ FileId FileManager::register_empty(FileType type) {
}
void FileManager::on_file_unlink(const FullLocalFileLocation &location) {
// TODO: remove file from the database too
auto it = local_location_to_file_id_.find(location);
if (it == local_location_to_file_id_.end()) {
return;