mount_sd.py 文件源码

def statfs(self, path):
        if common.windows:
            lpSectorsPerCluster = ctypes.c_ulonglong(0)
            lpBytesPerSector = ctypes.c_ulonglong(0)
            lpNumberOfFreeClusters = ctypes.c_ulonglong(0)
            lpTotalNumberOfClusters = ctypes.c_ulonglong(0)
            ret = windll.kernel32.GetDiskFreeSpaceW(ctypes.c_wchar_p(path), ctypes.pointer(lpSectorsPerCluster), ctypes.pointer(lpBytesPerSector), ctypes.pointer(lpNumberOfFreeClusters), ctypes.pointer(lpTotalNumberOfClusters))
            if not ret:
                raise WindowsError
            free_blocks = lpNumberOfFreeClusters.value * lpSectorsPerCluster.value
            result = {'f_bavail': free_blocks,
                      'f_bfree': free_blocks,
                      'f_bsize': lpBytesPerSector.value,
                      'f_frsize': lpBytesPerSector.value,
                      'f_blocks': lpTotalNumberOfClusters.value * lpSectorsPerCluster.value,
                      'f_namemax': wintypes.MAX_PATH}
            return result
        else:
            stv = os.statvfs(path)
            # f_flag causes python interpreter crashes in some cases. i don't get it.
            return dict((key, getattr(stv, key)) for key in ('f_bavail', 'f_bfree', 'f_blocks', 'f_bsize', 'f_favail',
                                                             'f_ffree', 'f_files', 'f_frsize', 'f_namemax'))