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authorChristopher Koch <chrisko@google.com>2019-02-08 10:50:14 -0800
committerShentubot <shentubot@google.com>2019-02-08 10:51:24 -0800
commit5079b38a9af1d66ad720005d7487dd711a0cb713 (patch)
tree8aa1bcf46e69ac8ab5875acdad16f30422e341a2 /pkg/fd/fd.go
parent80f901b16b8bb8fe397cc44578035173f5155b24 (diff)
Keep FilePayloads open on server side until after RPC completed.
Prevents URPC FDs from being closed mid-call, especially if they are used as raw FDs. PiperOrigin-RevId: 233087955 Change-Id: I815a2ff32cc5f03774605aef0b35a32862f8e633
Diffstat (limited to 'pkg/fd/fd.go')
-rw-r--r--pkg/fd/fd.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/pkg/fd/fd.go b/pkg/fd/fd.go
index f6656ffa1..a2edf2aa6 100644
--- a/pkg/fd/fd.go
+++ b/pkg/fd/fd.go
@@ -158,6 +158,9 @@ func New(fd int) *FD {
// The returned FD is always blocking (Go 1.9+).
func NewFromFile(file *os.File) (*FD, error) {
fd, err := syscall.Dup(int(file.Fd()))
+ // Technically, the runtime may call the finalizer on file as soon as
+ // Fd() returns.
+ runtime.KeepAlive(file)
if err != nil {
return &FD{ReadWriter{-1}}, err
}