1 /*
2  * Copyright 2022 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #pragma once
18 
19 #include <fmt/core.h>
20 #include <fmt/format.h>
21 #include <fmt/printf.h>
22 
23 #include <optional>
24 
25 namespace rootcanal::log {
26 
27 enum Verbosity {
28   kDebug,
29   kInfo,
30   kWarning,
31   kError,
32   kFatal,
33 };
34 
35 void SetLogColorEnable(bool);
36 
37 void VLog(Verbosity verb, char const* file, int line, std::optional<int> instance,
38           char const* format, fmt::format_args args);
39 
40 template <typename... Args>
Log(Verbosity verb,char const * file,int line,int instance,char const * format,const Args &...args)41 static void Log(Verbosity verb, char const* file, int line, int instance, char const* format,
42                 const Args&... args) {
43   VLog(verb, file, line, instance, format, fmt::make_format_args(args...));
44 }
45 
46 template <typename... Args>
Log(Verbosity verb,char const * file,int line,char const * format,const Args &...args)47 static void Log(Verbosity verb, char const* file, int line, char const* format,
48                 const Args&... args) {
49   VLog(verb, file, line, {}, format, fmt::make_format_args(args...));
50 }
51 
52 #define DEBUG(...) \
53   rootcanal::log::Log(rootcanal::log::Verbosity::kDebug, __FILE__, __LINE__, __VA_ARGS__)
54 
55 #define INFO(...) \
56   rootcanal::log::Log(rootcanal::log::Verbosity::kInfo, __FILE__, __LINE__, __VA_ARGS__)
57 
58 #define WARNING(...) \
59   rootcanal::log::Log(rootcanal::log::Verbosity::kWarning, __FILE__, __LINE__, __VA_ARGS__)
60 
61 #define ERROR(...) \
62   rootcanal::log::Log(rootcanal::log::Verbosity::kError, __FILE__, __LINE__, __VA_ARGS__)
63 
64 #define FATAL(...) \
65   rootcanal::log::Log(rootcanal::log::Verbosity::kFatal, __FILE__, __LINE__, __VA_ARGS__)
66 
67 #define ASSERT(x)                                                                     \
68   __builtin_expect((x) != 0, true) ||                                                 \
69           (rootcanal::log::Log(rootcanal::log::Verbosity::kFatal, __FILE__, __LINE__, \
70                                "Check failed: {}", #x),                               \
71            false)
72 
73 #define ASSERT_LOG(x, ...)                                                             \
74   __builtin_expect((x) != 0, true) ||                                                  \
75           (rootcanal::log::Log(rootcanal::log::Verbosity::kFatal, __FILE__, __LINE__,  \
76                                "Check failed: {}, {}", #x, fmt::sprintf(__VA_ARGS__)), \
77            false)
78 
79 }  // namespace rootcanal::log
80