import sys import uos import uerrno try: uos.VfsFat except AttributeError: print("SKIP") sys.exit() class RAMFS: SEC_SIZE = 512 def __init__(self, blocks): self.data = bytearray(blocks * self.SEC_SIZE) def readblocks(self, n, buf): #print("readblocks(%s, %x(%d))" % (n, id(buf), len(buf))) for i in range(len(buf)): buf[i] = self.data[n * self.SEC_SIZE + i] def writeblocks(self, n, buf): #print("writeblocks(%s, %x)" % (n, id(buf))) for i in range(len(buf)): self.data[n * self.SEC_SIZE + i] = buf[i] def ioctl(self, op, arg): #print("ioctl(%d, %r)" % (op, arg)) if op == 4: # BP_IOCTL_SEC_COUNT return len(self.data) // self.SEC_SIZE if op == 5: # BP_IOCTL_SEC_SIZE return self.SEC_SIZE try: bdev = RAMFS(48) except MemoryError: print("SKIP") sys.exit() uos.VfsFat.mkfs(bdev) print(b"FOO_FILETXT" not in bdev.data) print(b"hello!" not in bdev.data) vfs = uos.VfsFat(bdev, "/ramdisk") try: vfs.statvfs("/null") except OSError as e: print(e.args[0] == uerrno.ENODEV) print("statvfs:", vfs.statvfs("/ramdisk")) print("getcwd:", vfs.getcwd()) try: vfs.stat("no_file.txt") except OSError as e: print(e.args[0] == uerrno.ENOENT) with vfs.open("foo_file.txt", "w") as f: f.write("hello!") print(vfs.listdir()) print("stat root:", vfs.stat("/")) print("stat disk:", vfs.stat("/ramdisk/")) print("stat file:", vfs.stat("foo_file.txt")) print(b"FOO_FILETXT" in bdev.data) print(b"hello!" in bdev.data) vfs.mkdir("foo_dir") vfs.chdir("foo_dir") print("getcwd:", vfs.getcwd()) print(vfs.listdir()) with vfs.open("sub_file.txt", "w") as f: f.write("subdir file") try: vfs.chdir("sub_file.txt") except OSError as e: print(e.args[0] == uerrno.ENOENT) vfs.chdir("..") print("getcwd:", vfs.getcwd()) vfs.umount() try: vfs.listdir() except OSError as e: print(e.args[0] == uerrno.ENODEV) try: vfs.getcwd() except OSError as e: print(e.args[0] == uerrno.ENODEV) vfs = uos.VfsFat(bdev, "/ramdisk") print(vfs.listdir(b""))