3 * Copyright 2015 gRPC authors.
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
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include <grpc/support/port_platform.h>
23 #include <grpc/support/alloc.h>
24 #include <grpc/support/log.h>
25 #include <grpc/support/string_util.h>
26 #include <grpc/support/time.h>
34 static intptr_t sys_gettid(void) { return (intptr_t)pthread_self(); }
36 void gpr_log(const char* file, int line, gpr_log_severity severity,
37 const char* format, ...) {
38 /* Avoid message construction if gpr_log_message won't log */
39 if (gpr_should_log(severity) == 0) {
43 char* allocated = nullptr;
44 char* message = nullptr;
47 va_start(args, format);
48 ret = vsnprintf(buf, sizeof(buf), format, args);
52 } else if ((size_t)ret <= sizeof(buf) - 1) {
55 message = allocated = (char*)gpr_malloc((size_t)ret + 1);
56 va_start(args, format);
57 vsnprintf(message, (size_t)(ret + 1), format, args);
60 gpr_log_message(file, line, severity, message);
64 void gpr_default_log(gpr_log_func_args* args) {
65 const char* final_slash;
66 const char* display_file;
69 gpr_timespec now = gpr_now(GPR_CLOCK_REALTIME);
72 timer = (time_t)now.tv_sec;
73 final_slash = strrchr(args->file, '/');
74 if (final_slash == nullptr)
75 display_file = args->file;
77 display_file = final_slash + 1;
79 if (!localtime_r(&timer, &tm)) {
80 strcpy(time_buffer, "error:localtime");
82 strftime(time_buffer, sizeof(time_buffer), "%m%d %H:%M:%S", &tm)) {
83 strcpy(time_buffer, "error:strftime");
87 gpr_asprintf(&prefix, "%s%s.%09d %7" PRIdPTR " %s:%d]",
88 gpr_log_severity_string(args->severity), time_buffer,
89 (int)(now.tv_nsec), sys_gettid(), display_file, args->line);
91 fprintf(stderr, "%-70s %s\n", prefix, args->message);
95 #endif /* defined(GPR_POSIX_LOG) */