28 lines
486 B
Go
28 lines
486 B
Go
// +build !windows,!plan9,!nacl // These lack syscall.Mmap
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package main
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import (
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"fmt"
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"log"
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"os"
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"syscall"
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)
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func main() {
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f, err := os.Open("file")
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if err != nil {
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log.Fatal(err)
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}
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fi, err := f.Stat()
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if err != nil {
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log.Fatal(err)
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}
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data, err := syscall.Mmap(int(f.Fd()), 0, int(fi.Size()),
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syscall.PROT_READ, syscall.MAP_PRIVATE)
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if err != nil {
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log.Fatal(err)
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}
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fmt.Println(string(data))
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}
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