初始化导入 new-api 源码

common/system_monitor_unix.go

@@ -0,0 +1,37 @@
+//go:build !windows
+
+package common
+
+import (
+	"os"
+
+	"golang.org/x/sys/unix"
+)
+
+// GetDiskSpaceInfo 获取缓存目录所在磁盘的空间信息 (Unix/Linux/macOS)
+func GetDiskSpaceInfo() DiskSpaceInfo {
+	cachePath := GetDiskCachePath()
+	if cachePath == "" {
+		cachePath = os.TempDir()
+	}
+
+	info := DiskSpaceInfo{}
+
+	var stat unix.Statfs_t
+	err := unix.Statfs(cachePath, &stat)
+	if err != nil {
+		return info
+	}
+
+	// 计算磁盘空间 (显式转换以兼容 FreeBSD，其字段类型为 int64)
+	bsize := uint64(stat.Bsize)
+	info.Total = uint64(stat.Blocks) * bsize
+	info.Free = uint64(stat.Bavail) * bsize
+	info.Used = info.Total - uint64(stat.Bfree)*bsize
+
+	if info.Total > 0 {
+		info.UsedPercent = float64(info.Used) / float64(info.Total) * 100
+	}
+
+	return info
+}