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logging: Simplify and make thread-safe

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This simplifies the logging system.

This also fixes some lost messages on startup.

The simplification is simple. I removed unused functions and moved most things in the .h to the .cpp. I replaced the unnecessary linked list with its contents laid out as three member variables. Anything that went through the linked list now directly accesses the backends. Generic functions are replaced with those for each specific use case and there aren't many. This change increases coupling but we gain back more KISS and encapsulation.

With those changes it was easy to make it thread-safe. I just removed the mutex and turned a boolean atomic. I was planning to use this thread-safety in my next PR about stacktraces. It was actually async-signal-safety at first but I ended up using a different approach. Anyway getting rid of the linked list is important for that because have the list of backends constantly changing complicates things.
This commit is contained in:
yzct12345
2021-08-13 18:39:45 +00:00
committed by GitHub
parent 71d8d84b59
commit 001675dced
8 changed files with 248 additions and 297 deletions
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19
src/yuzu/main.cpp
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@ -175,21 +175,6 @@ void GMainWindow::ShowTelemetryCallout() {
const int GMainWindow::max_recent_files_item;
static void InitializeLogging() {
using namespace Common;
Log::Filter log_filter;
log_filter.ParseFilterString(Settings::values.log_filter.GetValue());
Log::SetGlobalFilter(log_filter);
const auto log_dir = FS::GetYuzuPath(FS::YuzuPath::LogDir);
void(FS::CreateDir(log_dir));
Log::AddBackend(std::make_unique<Log::FileBackend>(log_dir / LOG_FILE));
#ifdef _WIN32
Log::AddBackend(std::make_unique<Log::DebuggerBackend>());
#endif
}
static void RemoveCachedContents() {
const auto cache_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::CacheDir);
const auto offline_fonts = cache_dir / "fonts";
@ -207,8 +192,6 @@ GMainWindow::GMainWindow()
: input_subsystem{std::make_shared<InputCommon::InputSubsystem>()},
config{std::make_unique<Config>()}, vfs{std::make_shared<FileSys::RealVfsFilesystem>()},
provider{std::make_unique<FileSys::ManualContentProvider>()} {
InitializeLogging();
LoadTranslation();
setAcceptDrops(true);
@ -3398,6 +3381,7 @@ void GMainWindow::SetDiscordEnabled([[maybe_unused]] bool state) {
#endif
int main(int argc, char* argv[]) {
Common::Log::Initialize();
Common::DetachedTasks detached_tasks;
MicroProfileOnThreadCreate("Frontend");
SCOPE_EXIT({ MicroProfileShutdown(); });
@ -3437,6 +3421,7 @@ int main(int argc, char* argv[]) {
// generating shaders
setlocale(LC_ALL, "C");
Core::System::InitializeGlobalInstance();
GMainWindow main_window;
// After settings have been loaded by GMainWindow, apply the filter
main_window.show();