Send and receive Request error codes

This commit is contained in:
Audrius Butkevicius 2015-02-08 11:04:01 +00:00
parent bf7fea9a0a
commit 34c2c1ec16
2 changed files with 54 additions and 2 deletions

51
errors.go Executable file
View File

@ -0,0 +1,51 @@
// Copyright (C) 2014 The Protocol Authors.
package protocol
import (
"errors"
)
const (
ecNoError int32 = iota
ecGeneric
ecNoSuchFile
ecInvalid
)
var (
ErrNoError error = nil
ErrGeneric = errors.New("generic error")
ErrNoSuchFile = errors.New("no such file")
ErrInvalid = errors.New("file is invalid")
)
var lookupError = map[int32]error{
ecNoError: ErrNoError,
ecGeneric: ErrGeneric,
ecNoSuchFile: ErrNoSuchFile,
ecInvalid: ErrInvalid,
}
var lookupCode = map[error]int32{
ErrNoError: ecNoError,
ErrGeneric: ecGeneric,
ErrNoSuchFile: ecNoSuchFile,
ErrInvalid: ecInvalid,
}
func codeToError(errcode int32) error {
err, ok := lookupError[errcode]
if !ok {
return ErrGeneric
}
return err
}
func errorToCode(err error) int32 {
code, ok := lookupCode[err]
if !ok {
return ecGeneric
}
return code
}

View File

@ -497,10 +497,11 @@ func filterIndexMessageFiles(fs []FileInfo) []FileInfo {
}
func (c *rawConnection) handleRequest(msgID int, req RequestMessage) {
data, _ := c.receiver.Request(c.id, req.Folder, req.Name, int64(req.Offset), int(req.Size), req.Hash, req.Flags, req.Options)
data, err := c.receiver.Request(c.id, req.Folder, req.Name, int64(req.Offset), int(req.Size), req.Hash, req.Flags, req.Options)
c.send(msgID, messageTypeResponse, ResponseMessage{
Data: data,
Code: errorToCode(err),
})
}
@ -508,7 +509,7 @@ func (c *rawConnection) handleResponse(msgID int, resp ResponseMessage) {
c.awaitingMut.Lock()
if rc := c.awaiting[msgID]; rc != nil {
c.awaiting[msgID] = nil
rc <- asyncResult{resp.Data, nil}
rc <- asyncResult{resp.Data, codeToError(resp.Code)}
close(rc)
}
c.awaitingMut.Unlock()