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authorTing-Yu Wang <anivia@google.com>2021-01-07 14:14:58 -0800
committergVisor bot <gvisor-bot@google.com>2021-01-07 14:17:18 -0800
commitb1de1da318631c6d29f6c04dea370f712078f443 (patch)
treeb4e7f8f1b8fd195fa5d16257c5687126e1c7c9f6 /pkg/tcpip/checker
parentf4b4ed666d13eef6aebe23189b1431a933de0d8e (diff)
netstack: Refactor tcpip.Endpoint.Read
Read now takes a destination io.Writer, count, options. Keeping the method name Read, in contrast to the Write method. This enables: * direct transfer of views under VV * zero copy It also eliminates the need for sentry to keep a slice of view because userspace had requested a read that is smaller than the view returned, removing the complexity there. Read/Peek/ReadPacket are now consolidated together and some duplicate code is removed. PiperOrigin-RevId: 350636322
Diffstat (limited to 'pkg/tcpip/checker')
-rw-r--r--pkg/tcpip/checker/checker.go12
1 files changed, 12 insertions, 0 deletions
diff --git a/pkg/tcpip/checker/checker.go b/pkg/tcpip/checker/checker.go
index 91971b687..0ac2000ca 100644
--- a/pkg/tcpip/checker/checker.go
+++ b/pkg/tcpip/checker/checker.go
@@ -1603,3 +1603,15 @@ func IPv6RouterAlert(want header.IPv6RouterAlertValue) IPv6ExtHdrOptionChecker {
}
}
}
+
+// IgnoreCmpPath returns a cmp.Option that ignores listed field paths.
+func IgnoreCmpPath(paths ...string) cmp.Option {
+ ignores := map[string]struct{}{}
+ for _, path := range paths {
+ ignores[path] = struct{}{}
+ }
+ return cmp.FilterPath(func(path cmp.Path) bool {
+ _, ok := ignores[path.String()]
+ return ok
+ }, cmp.Ignore())
+}