From e875e816e42b8d7f53e25299eff1e83fbc3c0698 Mon Sep 17 00:00:00 2001
From: KevRiver <kanggakky1214@gmail.com>
Date: Sat, 2 Nov 2024 19:10:35 +0900
Subject: [PATCH] make cross-platform EADDRINUSE check

---
 cmd/humanlog/localhost.go         |  4 ++--
 internal/errors/errors_unix.go    | 13 +++++++++++++
 internal/errors/errors_windows.go | 13 +++++++++++++
 3 files changed, 28 insertions(+), 2 deletions(-)
 create mode 100644 internal/errors/errors_unix.go
 create mode 100644 internal/errors/errors_windows.go

diff --git a/cmd/humanlog/localhost.go b/cmd/humanlog/localhost.go
index 6ef3a36f..7e005edd 100644
--- a/cmd/humanlog/localhost.go
+++ b/cmd/humanlog/localhost.go
@@ -29,9 +29,9 @@ import (
 	"github.com/rs/cors"
 	"golang.org/x/net/http2"
 	"golang.org/x/net/http2/h2c"
-	"golang.org/x/sys/unix"
 
 	// imported for side-effect
+	internal_errors "github.com/humanlogio/humanlog/internal/errors"
 	_ "github.com/humanlogio/humanlog/internal/memstorage"
 )
 
@@ -51,7 +51,7 @@ func isEADDRINUSE(err error) bool {
 	if !ok {
 		return false
 	}
-	return nserrno == unix.EADDRINUSE
+	return internal_errors.IsSocketInUse(nserrno)
 }
 
 func startLocalhostServer(
diff --git a/internal/errors/errors_unix.go b/internal/errors/errors_unix.go
new file mode 100644
index 00000000..8d641e5c
--- /dev/null
+++ b/internal/errors/errors_unix.go
@@ -0,0 +1,13 @@
+//go:build !windows
+
+package errors
+
+import (
+	"syscall"
+
+	"golang.org/x/sys/unix"
+)
+
+func IsSocketInUse(errno syscall.Errno) bool {
+	return errno == unix.EADDRINUSE
+}
diff --git a/internal/errors/errors_windows.go b/internal/errors/errors_windows.go
new file mode 100644
index 00000000..da90b928
--- /dev/null
+++ b/internal/errors/errors_windows.go
@@ -0,0 +1,13 @@
+//go:build windows
+
+package errors
+
+import (
+	"syscall"
+
+	"golang.org/x/sys/windows"
+)
+
+func IsSocketInUse(errno syscall.Errno) bool {
+	return errno == windows.WSAEADDRINUSE
+}