From 651caeba91ed020cdebb5a6b1335c4e37ee66557 Mon Sep 17 00:00:00 2001
From: Jack <40802798+Jack073@users.noreply.github.com>
Date: Sun, 31 Oct 2021 21:01:22 +0000
Subject: [PATCH] Fix build for Windows (#1377) (#1506)

* Fix build for Windows (#1377)

* Add tests for windows
---
 .github/workflows/test.yaml                |  2 +-
 core/chat/concurrentConnections.go         |  3 ++-
 core/chat/concurrentConnections_windows.go |  6 ++++++
 core/chat/utils.go                         |  3 +++
 core/chat/utils_windows.go                 | 12 ++++++++++++
 5 files changed, 24 insertions(+), 2 deletions(-)
 create mode 100644 core/chat/concurrentConnections_windows.go
 create mode 100644 core/chat/utils_windows.go

diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index cdd661626..e0f1dc8b5 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -6,7 +6,7 @@ jobs:
     strategy:
       matrix:
         go-version: [1.15.x, 1.16.x]
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
diff --git a/core/chat/concurrentConnections.go b/core/chat/concurrentConnections.go
index 0a968b549..cbbea81c3 100644
--- a/core/chat/concurrentConnections.go
+++ b/core/chat/concurrentConnections.go
@@ -1,5 +1,6 @@
 // nolint:goimports
-// +build !freebsd
+//go:build !freebsd && !windows
+// +build !freebsd,!windows
 
 package chat
 
diff --git a/core/chat/concurrentConnections_windows.go b/core/chat/concurrentConnections_windows.go
new file mode 100644
index 000000000..ef61843b3
--- /dev/null
+++ b/core/chat/concurrentConnections_windows.go
@@ -0,0 +1,6 @@
+//go:build windows
+// +build windows
+
+package chat
+
+func setSystemConcurrentConnectionLimit(limit int64) {}
diff --git a/core/chat/utils.go b/core/chat/utils.go
index 7ab6efea7..fae7beb29 100644
--- a/core/chat/utils.go
+++ b/core/chat/utils.go
@@ -1,3 +1,6 @@
+//go:build !windows
+// +build !windows
+
 package chat
 
 import (
diff --git a/core/chat/utils_windows.go b/core/chat/utils_windows.go
new file mode 100644
index 000000000..56fd59854
--- /dev/null
+++ b/core/chat/utils_windows.go
@@ -0,0 +1,12 @@
+//go:build windows
+// +build windows
+
+package chat
+
+func getMaximumConcurrentConnectionLimit() int64 {
+	// The maximum limit I can find for windows is 16,777,216
+	// (essentially unlimited, but add the 0.7 multiplier as well to be
+	// consistent with other systems)
+	// https://docs.microsoft.com/en-gb/archive/blogs/markrussinovich/pushing-the-limits-of-windows-handles
+	return (16777216 * 7) / 10
+}