clang-tools 8.0.0

Logger.cpp
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1 //===--- Logger.cpp - Logger interface for clangd -------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "Logger.h"
11 #include "Trace.h"
12 #include "llvm/Support/Chrono.h"
13 #include "llvm/Support/FormatVariadic.h"
14 #include "llvm/Support/raw_ostream.h"
15 #include <mutex>
16
17 namespace clang {
18 namespace clangd {
19
20 namespace {
21 Logger *L = nullptr;
22 } // namespace
23
24 LoggingSession::LoggingSession(clangd::Logger &Instance) {
25 assert(!L);
26 L = &Instance;
27 }
28
29 LoggingSession::~LoggingSession() { L = nullptr; }
30
31 void detail::log(Logger::Level Level,
32 const llvm::formatv_object_base &Message) {
33 if (L)
34 L->log(Level, Message);
35 else {
36 static std::mutex Mu;
37 std::lock_guard<std::mutex> Guard(Mu);
38 llvm::errs() << Message << "\n";
39 }
40 }
41
42 const char *detail::debugType(const char *Filename) {
43 if (const char *Slash = strrchr(Filename, '/'))
44 return Slash + 1;
45 if (const char *Backslash = strrchr(Filename, '\\'))
46 return Backslash + 1;
47 return Filename;
48 }
49
50 void StreamLogger::log(Logger::Level Level,
51 const llvm::formatv_object_base &Message) {
52 if (Level < MinLevel)
53 return;
54 llvm::sys::TimePoint<> Timestamp = std::chrono::system_clock::now();
55 trace::log(Message);
56 std::lock_guard<std::mutex> Guard(StreamMutex);
57 Logs << llvm::formatv("{0}[{1:%H:%M:%S.%L}] {2}\n", indicator(Level),
58 Timestamp, Message);
59 Logs.flush();
60 }
61
62 } // namespace clangd
63 } // namespace clang
Trace.h
clang::clangd::detail::log
void log(Logger::Level, const llvm::formatv_object_base &)
Definition: Logger.cpp:31
clang::tidy::modernize::Message
static const StringRef Message
Definition: UseTransparentFunctorsCheck.cpp:71
clang::clangd::detail::debugType
const char * debugType(const char *Filename)
Definition: Logger.cpp:42
Filename
std::string Filename
Filename as a string.
Definition: IncludeOrderCheck.cpp:39
clang::clangd::Logger
Interface to allow custom logging in clangd.
Definition: Logger.h:24
clang::clangd::Logger::Level
Level
Definition: Logger.h:28
clang::clangd::LoggingSession::~LoggingSession
~LoggingSession()
Definition: Logger.cpp:29
clang::clangd::StreamLogger::log
void log(Level, const llvm::formatv_object_base &Message) override
Write a line to the logging stream.
Definition: Logger.cpp:50
Logger.h
clang::clangd::LoggingSession::LoggingSession
LoggingSession(clangd::Logger &Instance)
Definition: Logger.cpp:24
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ChangeNamespace.cpp:18
clang::clangd::trace::log
void log(const llvm::Twine &Message)
Records a single instant event, associated with the current thread.
Definition: Trace.cpp:205