Merge pull request #7272 from behunin/the-courteous-logger

Logging: Impl refactor
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bunnei 2021-11-13 00:03:54 -08:00 committed by GitHub
commit 0eacc362dd
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4 changed files with 41 additions and 28 deletions

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@ -6,6 +6,7 @@
#include <chrono>
#include <climits>
#include <exception>
#include <stop_token>
#include <thread>
#include <vector>
@ -186,6 +187,10 @@ public:
initialization_in_progress_suppress_logging = false;
}
static void Start() {
instance->StartBackendThread();
}
Impl(const Impl&) = delete;
Impl& operator=(const Impl&) = delete;
@ -201,7 +206,7 @@ public:
}
void PushEntry(Class log_class, Level log_level, const char* filename, unsigned int line_num,
const char* function, std::string message) {
const char* function, std::string&& message) {
if (!filter.CheckMessage(log_class, log_level))
return;
const Entry& entry =
@ -211,40 +216,41 @@ public:
private:
Impl(const std::filesystem::path& file_backend_filename, const Filter& filter_)
: filter{filter_}, file_backend{file_backend_filename}, backend_thread{std::thread([this] {
: filter{filter_}, file_backend{file_backend_filename} {}
~Impl() {
StopBackendThread();
}
void StartBackendThread() {
backend_thread = std::thread([this] {
Common::SetCurrentThreadName("yuzu:Log");
Entry entry;
const auto write_logs = [this, &entry]() {
ForEachBackend([&entry](Backend& backend) { backend.Write(entry); });
};
while (true) {
entry = message_queue.PopWait();
if (entry.final_entry) {
break;
}
while (!stop.stop_requested()) {
entry = message_queue.PopWait(stop.get_token());
if (entry.filename != nullptr) {
write_logs();
}
}
// Drain the logging queue. Only writes out up to MAX_LOGS_TO_WRITE to prevent a
// case where a system is repeatedly spamming logs even on close.
int max_logs_to_write = filter.IsDebug() ? INT_MAX : 100;
while (max_logs_to_write-- && message_queue.Pop(entry)) {
write_logs();
}
})} {}
~Impl() {
StopBackendThread();
});
}
void StopBackendThread() {
Entry stop_entry{};
stop_entry.final_entry = true;
message_queue.Push(stop_entry);
stop.request_stop();
backend_thread.join();
}
Entry CreateEntry(Class log_class, Level log_level, const char* filename, unsigned int line_nr,
const char* function, std::string message) const {
const char* function, std::string&& message) const {
using std::chrono::duration_cast;
using std::chrono::microseconds;
using std::chrono::steady_clock;
@ -257,7 +263,6 @@ private:
.line_num = line_nr,
.function = function,
.message = std::move(message),
.final_entry = false,
};
}
@ -278,8 +283,9 @@ private:
ColorConsoleBackend color_console_backend{};
FileBackend file_backend;
std::stop_source stop;
std::thread backend_thread;
MPSCQueue<Entry> message_queue{};
MPSCQueue<Entry, true> message_queue{};
std::chrono::steady_clock::time_point time_origin{std::chrono::steady_clock::now()};
};
} // namespace
@ -288,6 +294,10 @@ void Initialize() {
Impl::Initialize();
}
void Start() {
Impl::Start();
}
void DisableLoggingInTests() {
initialization_in_progress_suppress_logging = true;
}

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@ -14,6 +14,8 @@ class Filter;
/// Initializes the logging system. This should be the first thing called in main.
void Initialize();
void Start();
void DisableLoggingInTests();
/**

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@ -22,7 +22,6 @@ struct Entry {
unsigned int line_num = 0;
std::string function;
std::string message;
bool final_entry = false;
};
} // namespace Common::Log

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@ -299,6 +299,8 @@ GMainWindow::GMainWindow()
SDL_EnableScreenSaver();
#endif
Common::Log::Start();
QStringList args = QApplication::arguments();
if (args.size() < 2) {