64 lines
1.2 KiB
Python
64 lines
1.2 KiB
Python
import sys
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import uos
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import uerrno
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try:
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uos.VfsFat
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uos.vfs_mkfs
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uos.vfs_mount
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except AttributeError:
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print("SKIP")
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sys.exit()
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class RAMFS_OLD:
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SEC_SIZE = 512
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def __init__(self, blocks):
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self.data = bytearray(blocks * self.SEC_SIZE)
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def readblocks(self, n, buf):
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#print("readblocks(%s, %x(%d))" % (n, id(buf), len(buf)))
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for i in range(len(buf)):
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buf[i] = self.data[n * self.SEC_SIZE + i]
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def writeblocks(self, n, buf):
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#print("writeblocks(%s, %x)" % (n, id(buf)))
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for i in range(len(buf)):
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self.data[n * self.SEC_SIZE + i] = buf[i]
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def sync(self):
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pass
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def count(self):
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return len(self.data) // self.SEC_SIZE
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try:
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bdev = RAMFS_OLD(48)
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except MemoryError:
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print("SKIP")
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sys.exit()
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uos.vfs_mkfs(bdev, "/ramdisk")
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uos.vfs_mount(bdev, "/ramdisk")
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# file io
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vfs = uos.VfsFat(bdev, "/ramdisk")
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with vfs.open("file.txt", "w") as f:
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f.write("hello!")
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print(vfs.listdir())
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with vfs.open("file.txt", "r") as f:
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print(f.read())
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vfs.remove("file.txt")
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print(vfs.listdir())
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# umount by device
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uos.vfs_umount(bdev)
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try:
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vfs.listdir()
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except OSError as e:
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print(e.args[0] == uerrno.ENODEV)
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