获取磁盘占用情况 linux mac下有效
import ("syscall")type DiskStatus struct {All uint64 `json:"all"`Used uint64 `json:"used"`Free uint64 `json:"free"`}// disk usage of path/diskfunc DiskUsage(path string) (disk DiskStatus) {fs := syscall.Statfs_t{}err := syscall.Statfs(path, &fs)if err != nil {return}disk.All = fs.Blocks * uint64(fs.Bsize)disk.Free = fs.Bfree * uint64(fs.Bsize)disk.Used = disk.All - disk.Freereturn}获取内存占用
import ("runtime")type MemStatus struct {All uint32 `json:"all"`Used uint32 `json:"used"`Free uint32 `json:"free"`Self uint64 `json:"self"`}func MemStat() MemStatus {//自身占用memStat := new(runtime.MemStats)runtime.ReadMemStats(memStat)mem := MemStatus{}mem.Self = memStat.Alloc//系统占用,仅linux/mac下有效//system memory usagesysInfo := new(syscall.Sysinfo_t)err := syscall.Sysinfo(sysInfo)if err == nil {mem.All = sysInfo.Totalram * uint32(syscall.Getpagesize())mem.Free = sysInfo.Freeram * uint32(syscall.Getpagesize())mem.Used = mem.All - mem.Free}return mem}通过调用win32 api windows下获取磁盘空间
func main() {kernel32, err := syscall.LoadLibrary("Kernel32.dll")if err != nil {log.Panic(err)}defer syscall.FreeLibrary(kernel32)GetDiskFreeSpaceEx, err := syscall.GetProcAddress(syscall.Handle(kernel32), "GetDiskFreeSpaceExW")if err != nil {log.Panic(err)}lpFreeBytesAvailable := int64(0)lpTotalNumberOfBytes := int64(0)lpTotalNumberOfFreeBytes := int64(0)r, a, b := syscall.Syscall6(uintptr(GetDiskFreeSpaceEx), 4,uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr("C:"))),uintptr(unsafe.Pointer(&lpFreeBytesAvailable)),uintptr(unsafe.Pointer(&lpTotalNumberOfBytes)),uintptr(unsafe.Pointer(&lpTotalNumberOfFreeBytes)), 0, 0)log.Printf("Available %dmb", lpFreeBytesAvailable/1024/1024.0)log.Printf("Total %dmb", lpTotalNumberOfBytes/1024/1024.0)log.Printf("Free %dmb", lpTotalNumberOfFreeBytes/1024/1024.0)}更简单的版本
func main() {h := syscall.MustLoadDLL("kernel32.dll")c := h.MustFindProc("GetDiskFreeSpaceExW")lpFreeBytesAvailable := int64(0)lpTotalNumberOfBytes := int64(0)lpTotalNumberOfFreeBytes := int64(0)r2, _, err := c.Call(uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr("F:"))),uintptr(unsafe.Pointer(&lpFreeBytesAvailable)),uintptr(unsafe.Pointer(&lpTotalNumberOfBytes)),uintptr(unsafe.Pointer(&lpTotalNumberOfFreeBytes)))