github.com/EgonCoin/EgonChain@v1.10.16/p2p/netutil/error.go (about)

     1  // Copyright 2016 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package netutil
    18  
    19  // IsTemporaryError checks whether the given error should be considered temporary.
    20  func IsTemporaryError(err error) bool {
    21  	tempErr, ok := err.(interface {
    22  		Temporary() bool
    23  	})
    24  	return ok && tempErr.Temporary() || isPacketTooBig(err)
    25  }
    26  
    27  // IsTimeout checks whether the given error is a timeout.
    28  func IsTimeout(err error) bool {
    29  	timeoutErr, ok := err.(interface {
    30  		Timeout() bool
    31  	})
    32  	return ok && timeoutErr.Timeout()
    33  }