mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
1cb875156f
Before this change, when we encounter an unhandles exception, we see: ``` [00050.147083][37665][67367][klog] ERROR: [ERROR:flutter/shell/common/shell.cc(209)] Dart Error: Unhandled exception: [00050.147087][37665][67367][klog] INFO: UnimplementedError ``` This doesn't help identify the root cause. Adding stack trace will help the cause.
51 lines
950 B
C++
51 lines
950 B
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "tonic/common/log.h"
|
|
|
|
#include <cstdarg>
|
|
#include <cstdio>
|
|
#include <memory>
|
|
|
|
namespace tonic {
|
|
|
|
namespace {
|
|
|
|
std::function<void(const char*)> log_handler;
|
|
|
|
} // namespace
|
|
|
|
void Log(const char* format, ...) {
|
|
va_list ap;
|
|
va_start(ap, format);
|
|
int result = vsnprintf(nullptr, 0, format, ap);
|
|
va_end(ap);
|
|
|
|
if (result < 0) {
|
|
return;
|
|
}
|
|
|
|
int size = result + 1;
|
|
std::unique_ptr<char[]> message(new char[size]);
|
|
va_start(ap, format);
|
|
result = vsnprintf(message.get(), size, format, ap);
|
|
va_end(ap);
|
|
|
|
if (result < 0) {
|
|
return;
|
|
}
|
|
|
|
if (log_handler) {
|
|
log_handler(message.get());
|
|
} else {
|
|
printf("%s\n", message.get());
|
|
}
|
|
}
|
|
|
|
void SetLogHandler(std::function<void(const char*)> handler) {
|
|
log_handler = handler;
|
|
}
|
|
|
|
} // namespace tonic
|