68 lines
1.5 KiB
Go
Vendored
68 lines
1.5 KiB
Go
Vendored
package memcached
|
|
|
|
import (
|
|
"errors"
|
|
"io"
|
|
|
|
"github.com/couchbase/gomemcached"
|
|
)
|
|
|
|
var errNoConn = errors.New("no connection")
|
|
|
|
// UnwrapMemcachedError converts memcached errors to normal responses.
|
|
//
|
|
// If the error is a memcached response, declare the error to be nil
|
|
// so a client can handle the status without worrying about whether it
|
|
// indicates success or failure.
|
|
func UnwrapMemcachedError(rv *gomemcached.MCResponse,
|
|
err error) (*gomemcached.MCResponse, error) {
|
|
|
|
if rv == err {
|
|
return rv, nil
|
|
}
|
|
return rv, err
|
|
}
|
|
|
|
// ReceiveHook is called after every packet is received (or attempted to be)
|
|
var ReceiveHook func(*gomemcached.MCResponse, int, error)
|
|
|
|
func getResponse(s io.Reader, hdrBytes []byte) (rv *gomemcached.MCResponse, n int, err error) {
|
|
if s == nil {
|
|
return nil, 0, errNoConn
|
|
}
|
|
|
|
rv = &gomemcached.MCResponse{}
|
|
n, err = rv.Receive(s, hdrBytes)
|
|
|
|
if ReceiveHook != nil {
|
|
ReceiveHook(rv, n, err)
|
|
}
|
|
|
|
if err == nil && (rv.Status != gomemcached.SUCCESS && rv.Status != gomemcached.AUTH_CONTINUE) {
|
|
err = rv
|
|
}
|
|
return rv, n, err
|
|
}
|
|
|
|
// TransmitHook is called after each packet is transmitted.
|
|
var TransmitHook func(*gomemcached.MCRequest, int, error)
|
|
|
|
func transmitRequest(o io.Writer, req *gomemcached.MCRequest) (int, error) {
|
|
if o == nil {
|
|
return 0, errNoConn
|
|
}
|
|
n, err := req.Transmit(o)
|
|
if TransmitHook != nil {
|
|
TransmitHook(req, n, err)
|
|
}
|
|
return n, err
|
|
}
|
|
|
|
func transmitResponse(o io.Writer, res *gomemcached.MCResponse) (int, error) {
|
|
if o == nil {
|
|
return 0, errNoConn
|
|
}
|
|
n, err := res.Transmit(o)
|
|
return n, err
|
|
}
|