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

1 files changed, 22 insertions, 0 deletions

diff --git a/pkg/eventfd/BUILD b/pkg/eventfd/BUILD
new file mode 100644
index 000000000..02407cb99
--- /dev/null
+++ b/pkg/eventfd/BUILD
@@ -0,0 +1,22 @@
+load("//tools:defs.bzl", "go_library", "go_test")
+
+package(licenses = ["notice"])
+
+go_library(
+    name = "eventfd",
+    srcs = [
+        "eventfd.go",
+    ],
+    visibility = ["//:sandbox"],
+    deps = [
+        "//pkg/hostarch",
+        "//pkg/tcpip/link/rawfile",
+        "@org_golang_x_sys//unix:go_default_library",
+    ],
+)
+
+go_test(
+    name = "eventfd_test",
+    srcs = ["eventfd_test.go"],
+    library = ":eventfd",
+)