net: move error messages related to OpError into net.go
Also makes ErrWriteToConnected more appropriate; it's used
not only UDPConn operations but UnixConn operations.
Update #4856
LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/84800044
diff --git a/src/pkg/net/net.go b/src/pkg/net/net.go
index 2e6db55..ca56af5 100644
--- a/src/pkg/net/net.go
+++ b/src/pkg/net/net.go
@@ -275,7 +275,16 @@
Addr() Addr
}
-var errMissingAddress = errors.New("missing address")
+// Various errors contained in OpError.
+var (
+ // For connection setup and write operations.
+ errMissingAddress = errors.New("missing address")
+
+ // For both read and write operations.
+ errTimeout error = &timeoutError{}
+ errClosing = errors.New("use of closed network connection")
+ ErrWriteToConnected = errors.New("use of WriteTo with pre-connected connection")
+)
// OpError is the error type usually returned by functions in the net
// package. It describes the operation, network type, and address of
@@ -337,10 +346,6 @@
func (e *timeoutError) Timeout() bool { return true }
func (e *timeoutError) Temporary() bool { return true }
-var errTimeout error = &timeoutError{}
-
-var errClosing = errors.New("use of closed network connection")
-
type AddrError struct {
Err string
Addr string