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fix WriteAt race condition

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This commit is contained in:
Jeromy
2015-03-24 11:41:41 -07:00
parent 13c489eca1
commit 5440bb0e6d
1 changed files with 5 additions and 14 deletions
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19
fuse/ipns/ipns_unix.go
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@ -296,22 +296,13 @@ func (fi *File) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.Read
}
func (fi *File) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
errs := make(chan error, 1)
go func() {
wrote, err := fi.fi.WriteAt(req.Data, req.Offset)
if err != nil {
errs <- err
}
resp.Size = wrote
errs <- nil
}()
select {
case err := <-errs:
// TODO: at some point, ensure that WriteAt here respects the context
wrote, err := fi.fi.WriteAt(req.Data, req.Offset)
if err != nil {
return err
case <-ctx.Done():
return ctx.Err()
}
resp.Size = wrote
return nil
}
func (fi *File) Flush(ctx context.Context, req *fuse.FlushRequest) error {