llvm-project/clang-tools-extra/clangd/Logger.cpp

64 lines
1.6 KiB
C++

//===--- Logger.cpp - Logger interface for clangd -------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Logger.h"
#include "Trace.h"
#include "llvm/Support/Chrono.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/Support/raw_ostream.h"
#include <mutex>
using namespace llvm;
namespace clang {
namespace clangd {
namespace {
Logger *L = nullptr;
} // namespace
LoggingSession::LoggingSession(clangd::Logger &Instance) {
assert(!L);
L = &Instance;
}
LoggingSession::~LoggingSession() { L = nullptr; }
void detail::log(Logger::Level Level, const formatv_object_base &Message) {
if (L)
L->log(Level, Message);
else {
static std::mutex Mu;
std::lock_guard<std::mutex> Guard(Mu);
errs() << Message << "\n";
}
}
const char *detail::debugType(const char *Filename) {
if (const char *Slash = strrchr(Filename, '/'))
return Slash + 1;
if (const char *Backslash = strrchr(Filename, '\\'))
return Backslash + 1;
return Filename;
}
void StreamLogger::log(Logger::Level Level,
const formatv_object_base &Message) {
if (Level < MinLevel)
return;
sys::TimePoint<> Timestamp = std::chrono::system_clock::now();
trace::log(Message);
std::lock_guard<std::mutex> Guard(StreamMutex);
Logs << formatv("{0}[{1:%H:%M:%S.%L}] {2}\n", indicator(Level), Timestamp,
Message);
Logs.flush();
}
} // namespace clangd
} // namespace clang