From 616d87444313db865c60fbeee36ebe5250ef301e Mon Sep 17 00:00:00 2001
From: Yuri Kunde Schlesner <yuriks@yuriks.net>
Date: Tue, 28 Oct 2014 05:36:00 -0200
Subject: New logging system
---
src/common/logging/backend.cpp | 151 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 151 insertions(+)
create mode 100644 src/common/logging/backend.cpp
(limited to 'src/common/logging/backend.cpp')
diff --git a/src/common/logging/backend.cpp b/src/common/logging/backend.cpp
new file mode 100644
index 0000000000..e79b846045
--- /dev/null
+++ b/src/common/logging/backend.cpp
@@ -0,0 +1,151 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include <algorithm>
+
+#include "common/log.h" // For _dbg_assert_
+
+#include "common/logging/backend.h"
+#include "common/logging/log.h"
+#include "common/logging/text_formatter.h"
+
+namespace Log {
+
+static std::shared_ptr<Logger> global_logger;
+
+/// Macro listing all log classes. Code should define CLS and SUB as desired before invoking this.
+#define ALL_LOG_CLASSES() \
+ CLS(Log) \
+ CLS(Common) \
+ SUB(Common, Filesystem) \
+ SUB(Common, Memory) \
+ CLS(Core) \
+ SUB(Core, ARM11) \
+ CLS(Config) \
+ CLS(Debug) \
+ SUB(Debug, Emulated) \
+ SUB(Debug, GPU) \
+ SUB(Debug, Breakpoint) \
+ CLS(Kernel) \
+ SUB(Kernel, SVC) \
+ CLS(Service) \
+ SUB(Service, SRV) \
+ SUB(Service, FS) \
+ SUB(Service, APT) \
+ SUB(Service, GSP) \
+ SUB(Service, AC) \
+ SUB(Service, PTM) \
+ SUB(Service, CFG) \
+ SUB(Service, DSP) \
+ SUB(Service, HID) \
+ CLS(HW) \
+ SUB(HW, Memory) \
+ SUB(HW, GPU) \
+ CLS(Frontend) \
+ CLS(Render) \
+ SUB(Render, Software) \
+ SUB(Render, OpenGL) \
+ CLS(Loader)
+
+Logger::Logger() {
+ // Register logging classes so that they can be queried at runtime
+ size_t parent_class;
+ all_classes.reserve((size_t)Class::Count);
+
+#define CLS(x) \
+ all_classes.push_back(Class::x); \
+ parent_class = all_classes.size() - 1;
+#define SUB(x, y) \
+ all_classes.push_back(Class::x##_##y); \
+ all_classes[parent_class].num_children += 1;
+
+ ALL_LOG_CLASSES()
+#undef CLS
+#undef SUB
+
+ // Ensures that ALL_LOG_CLASSES isn't missing any entries.
+ _dbg_assert_(Log, all_classes.size() == (size_t)Class::Count);
+}
+
+// GetClassName is a macro defined by Windows.h, grrr...
+const char* Logger::GetLogClassName(Class log_class) {
+ switch (log_class) {
+#define CLS(x) case Class::x: return #x;
+#define SUB(x, y) case Class::x##_##y: return #x "." #y;
+ ALL_LOG_CLASSES()
+#undef CLS
+#undef SUB
+ }
+ return "Unknown";
+}
+
+const char* Logger::GetLevelName(Level log_level) {
+#define LVL(x) case Level::x: return #x
+ switch (log_level) {
+ LVL(Trace);
+ LVL(Debug);
+ LVL(Info);
+ LVL(Warning);
+ LVL(Error);
+ LVL(Critical);
+ }
+ return "Unknown";
+#undef LVL
+}
+
+void Logger::LogMessage(Entry entry) {
+ ring_buffer.Push(std::move(entry));
+}
+
+size_t Logger::GetEntries(Entry* out_buffer, size_t buffer_len) {
+ return ring_buffer.BlockingPop(out_buffer, buffer_len);
+}
+
+std::shared_ptr<Logger> InitGlobalLogger() {
+ global_logger = std::make_shared<Logger>();
+ return global_logger;
+}
+
+Entry CreateEntry(Class log_class, Level log_level,
+ const char* filename, unsigned int line_nr, const char* function,
+ const char* format, va_list args) {
+ using std::chrono::steady_clock;
+ using std::chrono::duration_cast;
+
+ static steady_clock::time_point time_origin = steady_clock::now();
+
+ std::array<char, 4 * 1024> formatting_buffer;
+
+ Entry entry;
+ entry.timestamp = duration_cast<std::chrono::microseconds>(steady_clock::now() - time_origin);
+ entry.log_class = log_class;
+ entry.log_level = log_level;
+
+ snprintf(formatting_buffer.data(), formatting_buffer.size(), "%s:%s:%u", filename, function, line_nr);
+ entry.location = std::string(formatting_buffer.data());
+
+ vsnprintf(formatting_buffer.data(), formatting_buffer.size(), format, args);
+ entry.message = std::string(formatting_buffer.data());
+
+ return std::move(entry);
+}
+
+void LogMessage(Class log_class, Level log_level,
+ const char* filename, unsigned int line_nr, const char* function,
+ const char* format, ...) {
+ va_list args;
+ va_start(args, format);
+ Entry entry = CreateEntry(log_class, log_level,
+ filename, line_nr, function, format, args);
+ va_end(args);
+
+ if (global_logger != nullptr && !global_logger->IsClosed()) {
+ global_logger->LogMessage(std::move(entry));
+ } else {
+ // Fall back to directly printing to stderr
+ PrintMessage(entry);
+ }
+}
+
+}
--
cgit v1.2.3-70-g09d2