github.com/kelleygo/clashcore@v1.0.2/common/net/packet/thread.go (about)

     1  package packet
     2  
     3  import (
     4  	"net"
     5  	"sync"
     6  )
     7  
     8  type threadSafePacketConn struct {
     9  	EnhancePacketConn
    10  	access sync.Mutex
    11  }
    12  
    13  func (c *threadSafePacketConn) WriteTo(b []byte, addr net.Addr) (int, error) {
    14  	c.access.Lock()
    15  	defer c.access.Unlock()
    16  	return c.EnhancePacketConn.WriteTo(b, addr)
    17  }
    18  
    19  func (c *threadSafePacketConn) Upstream() any {
    20  	return c.EnhancePacketConn
    21  }
    22  
    23  func (c *threadSafePacketConn) ReaderReplaceable() bool {
    24  	return true
    25  }
    26  
    27  func NewThreadSafePacketConn(pc net.PacketConn) EnhancePacketConn {
    28  	tsPC := &threadSafePacketConn{EnhancePacketConn: NewEnhancePacketConn(pc)}
    29  	if singPC, isSingPC := pc.(SingPacketConn); isSingPC {
    30  		return &threadSafeSingPacketConn{
    31  			threadSafePacketConn: tsPC,
    32  			singPacketConn:       singPC,
    33  		}
    34  	}
    35  	return tsPC
    36  }