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,
38           std::optional<int> instance, char const* format,
39           fmt::format_args args);
40 
41 template <typename... Args>
Log(Verbosity verb,char const * file,int line,int instance,char const * format,const Args &...args)42 static void Log(Verbosity verb, char const* file, int line, int instance,
43                 char const* format, const Args&... args) {
44   VLog(verb, file, line, instance, format, fmt::make_format_args(args...));
45 }
46 
47 template <typename... Args>
Log(Verbosity verb,char const * file,int line,char const * format,const Args &...args)48 static void Log(Verbosity verb, char const* file, int line, char const* format,
49                 const Args&... args) {
50   VLog(verb, file, line, {}, format, fmt::make_format_args(args...));
51 }
52 
53 #define DEBUG(...)                                                           \
54   rootcanal::log::Log(rootcanal::log::Verbosity::kDebug, __FILE__, __LINE__, \
55                       __VA_ARGS__)
56 
57 #define INFO(...)                                                           \
58   rootcanal::log::Log(rootcanal::log::Verbosity::kInfo, __FILE__, __LINE__, \
59                       __VA_ARGS__)
60 
61 #define WARNING(...)                                                           \
62   rootcanal::log::Log(rootcanal::log::Verbosity::kWarning, __FILE__, __LINE__, \
63                       __VA_ARGS__)
64 
65 #define ERROR(...)                                                           \
66   rootcanal::log::Log(rootcanal::log::Verbosity::kError, __FILE__, __LINE__, \
67                       __VA_ARGS__)
68 
69 #define FATAL(...)                                                           \
70   rootcanal::log::Log(rootcanal::log::Verbosity::kFatal, __FILE__, __LINE__, \
71                       __VA_ARGS__)
72 
73 #define ASSERT(x)                                                       \
74   __builtin_expect((x) != 0, true) ||                                   \
75       (rootcanal::log::Log(rootcanal::log::Verbosity::kFatal, __FILE__, \
76                            __LINE__, "Check failed: {}", #x),           \
77        false)
78 
79 #define ASSERT_LOG(x, ...)                                              \
80   __builtin_expect((x) != 0, true) ||                                   \
81       (rootcanal::log::Log(rootcanal::log::Verbosity::kFatal, __FILE__, \
82                            __LINE__, "Check failed: {}, {}", #x,        \
83                            fmt::sprintf(__VA_ARGS__)),                  \
84        false)
85 
86 }  // namespace rootcanal::log
87