初始化导入 new-api 源码

common/system_monitor_windows.go

@@ -0,0 +1,50 @@
+//go:build windows
+
+package common
+
+import (
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+// GetDiskSpaceInfo 获取缓存目录所在磁盘的空间信息 (Windows)
+func GetDiskSpaceInfo() DiskSpaceInfo {
+	cachePath := GetDiskCachePath()
+	if cachePath == "" {
+		cachePath = os.TempDir()
+	}
+
+	info := DiskSpaceInfo{}
+
+	kernel32 := syscall.NewLazyDLL("kernel32.dll")
+	getDiskFreeSpaceEx := kernel32.NewProc("GetDiskFreeSpaceExW")
+
+	var freeBytesAvailable, totalBytes, totalFreeBytes uint64
+
+	pathPtr, err := syscall.UTF16PtrFromString(cachePath)
+	if err != nil {
+		return info
+	}
+
+	ret, _, _ := getDiskFreeSpaceEx.Call(
+		uintptr(unsafe.Pointer(pathPtr)),
+		uintptr(unsafe.Pointer(&freeBytesAvailable)),
+		uintptr(unsafe.Pointer(&totalBytes)),
+		uintptr(unsafe.Pointer(&totalFreeBytes)),
+	)
+
+	if ret == 0 {
+		return info
+	}
+
+	info.Total = totalBytes
+	info.Free = freeBytesAvailable
+	info.Used = totalBytes - totalFreeBytes
+
+	if info.Total > 0 {
+		info.UsedPercent = float64(info.Used) / float64(info.Total) * 100
+	}
+
+	return info
+}