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//
//
// Copyright 2015 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
//
#ifndef _POSIX_SOURCE
#define _POSIX_SOURCE
#endif
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <grpc/support/port_platform.h>
#ifdef GPR_LINUX_LOG
#include <inttypes.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <sys/syscall.h>
#include <time.h>
#include <unistd.h>
#include <util/generic/string.h>
#include <util/string/cast.h>
#include "y_absl/strings/str_format.h"
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/time.h>
#include "src/core/lib/gprpp/crash.h"
#include "src/core/lib/gprpp/examine_stack.h"
int gpr_should_log_stacktrace(gpr_log_severity severity);
static long sys_gettid(void) { return syscall(__NR_gettid); }
void gpr_log(const char* file, int line, gpr_log_severity severity,
const char* format, ...) {
// Avoid message construction if gpr_log_message won't log
if (gpr_should_log(severity) == 0) {
return;
}
char* message = nullptr;
va_list args;
va_start(args, format);
if (vasprintf(&message, format, args) == -1) {
va_end(args);
return;
}
va_end(args);
gpr_log_message(file, line, severity, message);
// message has been allocated by vasprintf above, and needs free
free(message);
}
void gpr_default_log(gpr_log_func_args* args) {
const char* final_slash;
const char* display_file;
char time_buffer[64];
time_t timer;
gpr_timespec now = gpr_now(GPR_CLOCK_REALTIME);
struct tm tm;
static thread_local long tid(0);
if (tid == 0) tid = sys_gettid();
timer = static_cast<time_t>(now.tv_sec);
final_slash = strrchr(args->file, '/');
if (final_slash == nullptr) {
display_file = args->file;
} else {
display_file = final_slash + 1;
}
if (!localtime_r(&timer, &tm)) {
strcpy(time_buffer, "error:localtime");
} else if (0 ==
strftime(time_buffer, sizeof(time_buffer), "%m%d %H:%M:%S", &tm)) {
strcpy(time_buffer, "error:strftime");
}
TString prefix = y_absl::StrFormat(
"%s%s.%09" PRId32 " %7ld %s:%d]", gpr_log_severity_string(args->severity),
time_buffer, now.tv_nsec, tid, display_file, args->line);
y_absl::optional<TString> stack_trace =
gpr_should_log_stacktrace(args->severity)
? grpc_core::GetCurrentStackTrace()
: y_absl::nullopt;
if (stack_trace) {
fprintf(stderr, "%-70s %s\n%s\n", prefix.c_str(), args->message,
stack_trace->c_str());
} else {
fprintf(stderr, "%-70s %s\n", prefix.c_str(), args->message);
}
}
#endif // GPR_LINUX_LOG
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