65 lines
1.6 KiB
Python
65 lines
1.6 KiB
Python
import os
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class FileSystem:
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def __init__(self):
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self.files = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
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def open(self, params):
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name, mode = params
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slot = 0
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i = 1
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while i < 8:
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if self.files[i] == 0:
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slot = i
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i += 1
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if slot > 0:
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if mode == 0:
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if os.path.exists(name):
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self.files[slot] = open(name, "r")
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else:
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slot = 0
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elif mode == 1:
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self.files[slot] = open(name, "w")
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elif mode == 2:
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self.files[slot] = open(name, "a")
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elif mode == 3:
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if os.path.exists(name):
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self.files[slot] = open(name, "r+")
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else:
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slot = 0
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return slot
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def read(self, slot):
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return ord(self.files[slot].read(1))
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def write(self, params):
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slot, char = params
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self.files[slot].write(chr(stack.pop()))
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return 1
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def close(self, slot):
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self.files[slot].close()
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self.files[slot] = 0
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return 0
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def pos(self, slot):
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return self.files[slot].tell()
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def seek(slot, pos):
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return self.files[slot].seek(pos, 0)
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def size(self, slot):
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at = self.files[slot].tell()
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self.files[slot].seek(0, 2) # SEEK_END
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end = self.files[slot].tell()
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self.files[slot].seek(at, 0) # SEEK_SET
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return end
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def delete(self, name):
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name = extract_string(stack.pop())
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i = 0
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if os.path.exists(name):
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os.remove(name)
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i = 1
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return i
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