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https://github.com/golang/go
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4d17efe81b
This would have failed with CL 11663043. R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/11480045
38 lines
674 B
Go
38 lines
674 B
Go
package cgotest
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/*
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void lockOSThreadCallback(void);
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inline static void lockOSThreadC(void)
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{
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lockOSThreadCallback();
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}
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int usleep(unsigned usec);
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*/
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import "C"
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import (
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"runtime"
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"testing"
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)
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func init() {
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// Same as test3775 but run during init so that
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// there are two levels of internal runtime lock
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// (1 for init, 1 for cgo).
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// This would have been broken by CL 11663043.
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C.lockOSThreadC()
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}
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func test3775(t *testing.T) {
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// Used to panic because of the UnlockOSThread below.
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C.lockOSThreadC()
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}
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//export lockOSThreadCallback
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func lockOSThreadCallback() {
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runtime.LockOSThread()
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runtime.UnlockOSThread()
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go C.usleep(10000)
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runtime.Gosched()
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}
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