From 1d28743f31b9f5086f137e2c634cbd448849acee Mon Sep 17 00:00:00 2001
From: Ophestra Umiker <cat@ophivana.moe>
Date: Sun, 30 Jun 2024 03:00:02 +0900
Subject: [PATCH] library: io: implement Windows platform support

Discord on Windows makes use of Windows named pipes for the socket instead of UNIX domain sockets.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
---
 go.mod        |  3 ++-
 io_windows.go | 27 +++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 io_windows.go

diff --git a/go.mod b/go.mod
index 7b5ce64..c0f95d4 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,9 @@ go 1.22
 
 require (
 	fyne.io/fyne/v2 v2.4.5
+	github.com/Microsoft/go-winio v0.6.2
 	github.com/google/uuid v1.6.0
+	golang.org/x/image v0.17.0
 )
 
 require (
@@ -28,7 +30,6 @@ require (
 	github.com/stretchr/testify v1.8.4 // indirect
 	github.com/tevino/abool v1.2.0 // indirect
 	github.com/yuin/goldmark v1.5.5 // indirect
-	golang.org/x/image v0.17.0 // indirect
 	golang.org/x/mobile v0.0.0-20231127183840-76ac6878050a // indirect
 	golang.org/x/net v0.17.0 // indirect
 	golang.org/x/sys v0.21.0 // indirect
diff --git a/io_windows.go b/io_windows.go
new file mode 100644
index 0000000..d5e313e
--- /dev/null
+++ b/io_windows.go
@@ -0,0 +1,27 @@
+package rpcfetch
+
+import (
+	"errors"
+	"github.com/Microsoft/go-winio"
+	"io/fs"
+	"syscall"
+)
+
+var errPipe = syscall.Errno(232)
+
+func (d *Client) dial() error {
+	if d.dialed {
+		panic("attempted to dial on open client")
+	}
+
+	if conn, err := winio.DialPipe(`\\.\pipe\discord-ipc-0`, nil); err != nil {
+		if errors.Is(err, winio.ErrTimeout) || errors.Is(err, fs.ErrNotExist) {
+			return ErrAgain
+		}
+		return err
+	} else {
+		d.conn = conn
+		d.dialed = true
+	}
+	return nil
+}