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29 lines
725 B
Python
29 lines
725 B
Python
# memory manager to prevent redundant calls to files and save up disk usage
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import os
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import mmap
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class Allocator:
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def __init__(self):
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self.files = {}
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def load_file(self, path):
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filename = os.path.basename(path)
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with open(path, "r+b") as f:
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mmap_object = mmap.mmap(f.fileno(), 0, access=mmap.ACCESS_READ)
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self.files[filename] = mmap_object
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def unload_file(self, name):
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self.files[os.path.basename(name)].close()
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def read_at(self, file, offset, size):
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mmap_object = self.files[os.path.basename(file)]
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mmap_object.seek(offset)
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data = mmap_object.read(size)
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return data
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def free_mem(self):
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for file in list(self.files.keys()):
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self.files[os.path.basename(file)].close()
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self.files.clear()
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