Ophestra
82029948e6
This is useful for initialising extra files before command. Signed-off-by: Ophestra <cat@gensokyo.uk>
18 lines
366 B
Go
18 lines
366 B
Go
package proc
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import (
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"os"
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"os/exec"
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)
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func ExtraFile(cmd *exec.Cmd, f *os.File) (fd uintptr) {
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return ExtraFileSlice(&cmd.ExtraFiles, f)
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}
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func ExtraFileSlice(extraFiles *[]*os.File, f *os.File) (fd uintptr) {
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// ExtraFiles: If non-nil, entry i becomes file descriptor 3+i.
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fd = uintptr(3 + len(*extraFiles))
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*extraFiles = append(*extraFiles, f)
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return
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}
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