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34 lines
1.2 KiB
34 lines
1.2 KiB
// +build !go1.10
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package cap
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import "syscall"
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// LaunchSupported indicates that is safe to return from a locked OS
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// Thread and have that OS Thread be terminated by the runtime. The
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// Launch functionality really needs to rely on the fact that an
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// excess of runtime.LockOSThread() vs. runtime.UnlockOSThread() calls
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// in a returning go routine will cause the underlying locked OSThread
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// to terminate. That feature was added to the Go runtime in version
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// 1.10.
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//
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// See these bugs for the discussion and feature assumed by the code
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// in this Launch() functionality:
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//
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// https://github.com/golang/go/issues/20395
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// https://github.com/golang/go/issues/20458
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//
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// A value of false for this constant causes the Launch functionality
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// to fail with an error: cap.ErrNoLaunch. If this value is false you
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// have two choices with respect to the Launch functionality:
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//
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// 1) don't use cap.(*Launcher).Launch()
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// 2) upgrade your Go toolchain to 1.10+ (ie., do this one).
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const LaunchSupported = false
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// validatePA confirms that the pa.Sys entry is not incompatible with
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// Launch.
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func validatePA(pa *syscall.ProcAttr, chroot string) (bool, error) {
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return false, ErrNoLaunch
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}
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