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debug.go
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debug.go
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// Copyright 2019, Keychain Foundation Ltd.
// This file is part of the dipperin-core library.
//
// The dipperin-core library is free software: you can redistribute
// it and/or modify it under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// The dipperin-core library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package util
import (
"io/ioutil"
"os"
"path/filepath"
"runtime"
)
func WriteDebugStack(toFile string) error {
// prepare dir
toDir := filepath.Dir(toFile)
if !FileExist(toDir) {
if err := os.MkdirAll(toDir, 0755); err != nil {
return err
}
}
// write stack
buf := make([]byte, 5 * 1024 * 1024)
buf = buf[:runtime.Stack(buf, true)]
return ioutil.WriteFile(toFile, buf, 0755)
}