From ba4dfa7172a00f8b104a75a4655fe3de1e4a94c9 Mon Sep 17 00:00:00 2001
From: Jamie Liu <jamieliu@google.com>
Date: Wed, 24 Feb 2021 11:55:02 -0800
Subject: Move //pkg/gate.Gate to //pkg/sync.
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- Use atomic add rather than CAS in every Gate method, which is slightly
  faster in most cases.

- Implement Close wakeup using gopark/goready to avoid channel allocation.

New benchmarks:
name                         old time/op  new time/op  delta
GateEnterLeave-12            16.7ns ± 1%  10.3ns ± 1%  -38.44%  (p=0.000 n=9+8)
GateClose-12                 50.2ns ± 8%  42.4ns ± 6%  -15.44%  (p=0.000 n=10+10)
GateEnterLeaveAsyncClose-12   972ns ± 2%   640ns ± 7%  -34.15%  (p=0.000 n=9+10)

PiperOrigin-RevId: 359336344
---
 pkg/gate/BUILD | 22 ----------------------
 1 file changed, 22 deletions(-)
 delete mode 100644 pkg/gate/BUILD

(limited to 'pkg/gate/BUILD')

diff --git a/pkg/gate/BUILD b/pkg/gate/BUILD
deleted file mode 100644
index dd3141143..000000000
--- a/pkg/gate/BUILD
+++ /dev/null
@@ -1,22 +0,0 @@
-load("//tools:defs.bzl", "go_library", "go_test")
-
-package(licenses = ["notice"])
-
-go_library(
-    name = "gate",
-    srcs = [
-        "gate.go",
-    ],
-    visibility = ["//visibility:public"],
-)
-
-go_test(
-    name = "gate_test",
-    srcs = [
-        "gate_test.go",
-    ],
-    deps = [
-        ":gate",
-        "//pkg/sync",
-    ],
-)
-- 
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