diff options
| author | Kevin Krakauer <krakauer@google.com> | 2021-10-07 17:37:50 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-10-07 17:41:20 -0700 |
| commit | e44b100654ca639d11221e547384f699e461296d (patch) | |
| tree | 950811fef6620dea99871f63e82a08cfa06849bf /pkg/tcpip/link/sharedmem/tx.go | |
| parent | 487651ac46f302592ccffc9e5a4336a331010e42 (diff) | |
add convenient wrapper for eventfd
The same create/write/read pattern is copied around several places. It's easier
to understand in a package with names and comments, and we can reuse the smart
blocking code in package rawfile.
PiperOrigin-RevId: 401647108
Diffstat (limited to 'pkg/tcpip/link/sharedmem/tx.go')
| -rw-r--r-- | pkg/tcpip/link/sharedmem/tx.go | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/pkg/tcpip/link/sharedmem/tx.go b/pkg/tcpip/link/sharedmem/tx.go index 5ffcb8ab4..35e5bff12 100644 --- a/pkg/tcpip/link/sharedmem/tx.go +++ b/pkg/tcpip/link/sharedmem/tx.go @@ -18,6 +18,7 @@ import ( "math" "golang.org/x/sys/unix" + "gvisor.dev/gvisor/pkg/eventfd" "gvisor.dev/gvisor/pkg/tcpip/buffer" "gvisor.dev/gvisor/pkg/tcpip/link/sharedmem/queue" ) @@ -32,7 +33,7 @@ type tx struct { q queue.Tx ids idManager bufs bufferManager - eventFD int + eventFD eventfd.Eventfd sharedDataFD int } @@ -148,7 +149,7 @@ func (t *tx) transmit(bufs ...buffer.View) bool { // notify writes to the tx.eventFD to indicate to the peer that there is data to // be read. func (t *tx) notify() { - unix.Write(t.eventFD, []byte{1, 0, 0, 0, 0, 0, 0, 0}) + t.eventFD.Notify() } // getBuffer returns a memory region mapped to the full contents of the given |