mirror of
https://github.com/YuzuZensai/TrollSSH.git
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31 lines
540 B
Go
31 lines
540 B
Go
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//go:build unix
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package main
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import (
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"os"
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"syscall"
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)
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func readFrameFile(filename string) ([]byte, error) {
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f, err := os.Open(filename)
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if err != nil {
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return nil, err
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}
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defer func() { _ = f.Close() }()
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info, err := f.Stat()
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if err != nil {
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return nil, err
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}
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size := info.Size()
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if size <= 0 || size != int64(int(size)) {
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return os.ReadFile(filename)
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}
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data, err := syscall.Mmap(int(f.Fd()), 0, int(size), syscall.PROT_READ, syscall.MAP_SHARED)
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if err != nil {
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return os.ReadFile(filename)
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}
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return data, nil
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}
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