Initial commit (code only without large binaries)

EdgeNode/internal/caches/reader_file_mmap_darwin_plus.go

@@ -0,0 +1,22 @@
+// Copyright 2024 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
+//go:build plus && darwin
+
+package caches
+
+import (
+	memutils "github.com/TeaOSLab/EdgeNode/internal/utils/mem"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/mmap"
+)
+
+func IsValidForMMAPSize(size int64) bool {
+	var availableGB = int64(memutils.AvailableMemoryGB())
+	if availableGB < 1 {
+		return false
+	}
+
+	if mmap.TotalMMAPFileSize() > (availableGB << 28) /** 1/4 availableGB **/ {
+		return false
+	}
+
+	return size > (4<<10) && size < maxMMAPFileSize
+}