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