diff options
Diffstat (limited to 'libgo/go/net/unixsock.go')
| -rw-r--r-- | libgo/go/net/unixsock.go | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/libgo/go/net/unixsock.go b/libgo/go/net/unixsock.go index bacdaa41d90..b25d492f591 100644 --- a/libgo/go/net/unixsock.go +++ b/libgo/go/net/unixsock.go @@ -7,6 +7,7 @@ package net import ( "context" "os" + "sync" "syscall" "time" ) @@ -120,6 +121,9 @@ func (c *UnixConn) ReadFrom(b []byte) (int, Addr, error) { // the associated out-of-band data into oob. It returns the number of // bytes copied into b, the number of bytes copied into oob, the flags // that were set on the packet, and the source address of the packet. +// +// Note that if len(b) == 0 and len(oob) > 0, this function will still +// read (and discard) 1 byte from the connection. func (c *UnixConn) ReadMsgUnix(b, oob []byte) (n, oobn, flags int, addr *UnixAddr, err error) { if !c.ok() { return 0, 0, 0, nil, syscall.EINVAL @@ -167,6 +171,9 @@ func (c *UnixConn) WriteTo(b []byte, addr Addr) (int, error) { // WriteMsgUnix writes a packet to addr via c, copying the payload // from b and the associated out-of-band data from oob. It returns // the number of payload and out-of-band bytes written. +// +// Note that if len(b) == 0 and len(oob) > 0, this function will still +// write 1 byte to the connection. func (c *UnixConn) WriteMsgUnix(b, oob []byte, addr *UnixAddr) (n, oobn int, err error) { if !c.ok() { return 0, 0, syscall.EINVAL @@ -200,9 +207,10 @@ func DialUnix(net string, laddr, raddr *UnixAddr) (*UnixConn, error) { // typically use variables of type Listener instead of assuming Unix // domain sockets. type UnixListener struct { - fd *netFD - path string - unlink bool + fd *netFD + path string + unlink bool + unlinkOnce sync.Once } func (ln *UnixListener) ok() bool { return ln != nil && ln.fd != nil } |