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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include "common/assert.h"
#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) \
SUB(Core, Timing) \
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, LDR) \
SUB(Service, CFG) \
SUB(Service, DSP) \
SUB(Service, HID) \
SUB(Service, SOC) \
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.
DEBUG_ASSERT(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);
}
}
}
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