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mirror of https://github.com/RPCS3/rpcs3.git synced 2024-11-22 18:53:28 +01:00
rpcs3/Utilities/Log.cpp
2016-05-23 16:22:25 +03:00

148 lines
3.0 KiB
C++

#include "Log.h"
#include "File.h"
#include "StrFmt.h"
#include <cstdarg>
#include <string>
// Thread-specific log prefix provider
thread_local std::string(*g_tls_log_prefix)() = nullptr;
#ifndef _MSC_VER
constexpr DECLARE(bijective<logs::level, const char*>::map);
#endif
namespace logs
{
struct listener
{
listener() = default;
virtual ~listener() = default;
virtual void log(const channel& ch, level sev, const std::string& text) = 0;
};
class file_writer
{
// Could be memory-mapped file
fs::file m_file;
public:
file_writer(const std::string& name);
virtual ~file_writer() = default;
// Append raw data
void log(const std::string& text);
// Get current file size (may be used by secondary readers)
std::size_t size() const;
};
struct file_listener : public file_writer, public listener
{
file_listener(const std::string& name)
: file_writer(name)
, listener()
{
}
// Encode level, current thread name, channel name and write log message
virtual void log(const channel& ch, level sev, const std::string& text) override;
};
static file_listener& get_logger()
{
// Use magic static
static file_listener logger("RPCS3.log");
return logger;
}
channel GENERAL(nullptr, level::notice);
channel LOADER("LDR", level::notice);
channel MEMORY("MEM", level::notice);
channel RSX("RSX", level::notice);
channel HLE("HLE", level::notice);
channel PPU("PPU", level::notice);
channel SPU("SPU", level::notice);
channel ARMv7("ARMv7");
}
void logs::channel::broadcast(const logs::channel& ch, logs::level sev, const char* fmt...)
{
va_list args;
va_start(args, fmt);
get_logger().log(ch, sev, fmt::unsafe_vformat(fmt, args));
va_end(args);
}
[[noreturn]] extern void catch_all_exceptions();
logs::file_writer::file_writer(const std::string& name)
{
try
{
if (!m_file.open(fs::get_config_dir() + name, fs::rewrite + fs::append))
{
throw fmt::exception("Can't create log file %s (error %d)", name, fs::g_tls_error);
}
}
catch (...)
{
catch_all_exceptions();
}
}
void logs::file_writer::log(const std::string& text)
{
m_file.write(text);
}
std::size_t logs::file_writer::size() const
{
return m_file.pos();
}
void logs::file_listener::log(const logs::channel& ch, logs::level sev, const std::string& text)
{
std::string msg; msg.reserve(text.size() + 200);
// Used character: U+00B7 (Middle Dot)
switch (sev)
{
case level::always: msg = u8"·A "; break;
case level::fatal: msg = u8"·F "; break;
case level::error: msg = u8"·E "; break;
case level::todo: msg = u8"·U "; break;
case level::success: msg = u8"·S "; break;
case level::warning: msg = u8"·W "; break;
case level::notice: msg = u8"·! "; break;
case level::trace: msg = u8"·T "; break;
}
// TODO: print time?
if (auto prefix = g_tls_log_prefix)
{
msg += '{';
msg += prefix();
msg += "} ";
}
if (ch.name)
{
msg += ch.name;
msg += sev == level::todo ? " TODO: " : ": ";
}
else if (sev == level::todo)
{
msg += "TODO: ";
}
msg += text;
msg += '\n';
file_writer::log(msg);
}