27 lines
638 B
Go
27 lines
638 B
Go
// Copyright Terence J. Boldt (c)2021-2022
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// Use of this source code is governed by an MIT
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// license that can be found in the LICENSE file.
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// This file provides a file in memory
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package prodos
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type MemoryFile struct {
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data []byte
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size int
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}
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func NewMemoryFile(size int) *MemoryFile {
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return &MemoryFile{make([]byte, size), size}
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}
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func (memoryFile *MemoryFile) WriteAt(data []byte, offset int64) (int, error) {
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copy(memoryFile.data[int(offset):], data)
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return len(data), nil
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}
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func (memoryFile *MemoryFile) ReadAt(data []byte, offset int64) (int, error) {
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copy(data, memoryFile.data[int(offset):])
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return len(data), nil
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}
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