1 //
2 //
3 // Copyright 2015 gRPC authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 //
18
19 #include "absl/log/log.h"
20
21 #include <grpc/support/alloc.h>
22 #include <grpc/support/atm.h>
23 #include <grpc/support/log.h>
24 #include <grpc/support/port_platform.h>
25 #include <stdio.h>
26 #include <string.h>
27
28 #include "absl/log/check.h"
29 #include "absl/log/globals.h"
30 #include "absl/strings/match.h"
31 #include "absl/strings/str_cat.h"
32 #include "src/core/config/config_vars.h"
33 #include "src/core/util/crash.h"
34 #include "src/core/util/string.h"
35
gpr_unreachable_code(const char * reason,const char * file,int line)36 void gpr_unreachable_code(const char* reason, const char* file, int line) {
37 grpc_core::Crash(absl::StrCat("UNREACHABLE CODE: ", reason),
38 grpc_core::SourceLocation(file, line));
39 }
40
grpc_absl_log(const char * file,int line,gpr_log_severity severity,const char * message_str)41 GPRAPI void grpc_absl_log(const char* file, int line, gpr_log_severity severity,
42 const char* message_str) {
43 switch (severity) {
44 case GPR_LOG_SEVERITY_DEBUG:
45 VLOG(2).AtLocation(file, line) << message_str;
46 return;
47 case GPR_LOG_SEVERITY_INFO:
48 LOG(INFO).AtLocation(file, line) << message_str;
49 return;
50 case GPR_LOG_SEVERITY_ERROR:
51 LOG(ERROR).AtLocation(file, line) << message_str;
52 return;
53 default:
54 DCHECK(false) << "Invalid severity";
55 }
56 }
57
grpc_absl_log_int(const char * file,int line,gpr_log_severity severity,const char * message_str,intptr_t num)58 GPRAPI void grpc_absl_log_int(const char* file, int line,
59 gpr_log_severity severity,
60 const char* message_str, intptr_t num) {
61 switch (severity) {
62 case GPR_LOG_SEVERITY_DEBUG:
63 VLOG(2).AtLocation(file, line) << message_str << num;
64 return;
65 case GPR_LOG_SEVERITY_INFO:
66 LOG(INFO).AtLocation(file, line) << message_str << num;
67 return;
68 case GPR_LOG_SEVERITY_ERROR:
69 LOG(ERROR).AtLocation(file, line) << message_str << num;
70 return;
71 default:
72 DCHECK(false) << "Invalid severity";
73 }
74 }
75
grpc_absl_log_str(const char * file,int line,gpr_log_severity severity,const char * message_str1,const char * message_str2)76 GPRAPI void grpc_absl_log_str(const char* file, int line,
77 gpr_log_severity severity,
78 const char* message_str1,
79 const char* message_str2) {
80 switch (severity) {
81 case GPR_LOG_SEVERITY_DEBUG:
82 VLOG(2).AtLocation(file, line) << message_str1 << message_str2;
83 return;
84 case GPR_LOG_SEVERITY_INFO:
85 LOG(INFO).AtLocation(file, line) << message_str1 << message_str2;
86 return;
87 case GPR_LOG_SEVERITY_ERROR:
88 LOG(ERROR).AtLocation(file, line) << message_str1 << message_str2;
89 return;
90 default:
91 DCHECK(false) << "Invalid severity";
92 }
93 }
94
gpr_log_verbosity_init(void)95 void gpr_log_verbosity_init(void) {
96 #ifndef GRPC_VERBOSITY_MACRO
97 // SetMinLogLevel sets the value for the entire binary, not just gRPC.
98 // This setting will change things for other libraries/code that is unrelated
99 // to grpc.
100 absl::string_view verbosity = grpc_core::ConfigVars::Get().Verbosity();
101 if (absl::EqualsIgnoreCase(verbosity, "INFO")) {
102 LOG_FIRST_N(WARNING, 1)
103 << "Log level INFO is not suitable for production. Prefer WARNING or "
104 "ERROR. However if you see this message in a debug environment or "
105 "test environment it is safe to ignore this message.";
106 absl::SetVLogLevel("*grpc*/*", -1);
107 absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfo);
108 } else if (absl::EqualsIgnoreCase(verbosity, "DEBUG")) {
109 LOG_FIRST_N(WARNING, 1)
110 << "Log level DEBUG is not suitable for production. Prefer WARNING or "
111 "ERROR. However if you see this message in a debug environment or "
112 "test environment it is safe to ignore this message.";
113 absl::SetVLogLevel("*grpc*/*", 2);
114 absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfo);
115 } else if (absl::EqualsIgnoreCase(verbosity, "ERROR")) {
116 absl::SetVLogLevel("*grpc*/*", -1);
117 absl::SetMinLogLevel(absl::LogSeverityAtLeast::kError);
118 } else if (absl::EqualsIgnoreCase(verbosity, "NONE")) {
119 absl::SetVLogLevel("*grpc*/*", -1);
120 absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfinity);
121 } else if (verbosity.empty()) {
122 // Do not alter absl settings if GRPC_VERBOSITY flag is not set.
123 } else {
124 LOG(ERROR) << "Unknown log verbosity: " << verbosity;
125 }
126 #endif // GRPC_VERBOSITY_MACRO
127 }
128