//go:build !plan9 && !windows && !js && !wasip1

package runtime_test

import (
	"io"
	"os/exec"
	"syscall"
	"testing"
	"time"
)

// Issue #27250. Spurious wakeups to pthread_cond_timedwait_relative_np
// shouldn't cause semasleep to retry with the same timeout which would
// cause indefinite spinning.
func TestSpuriousWakeupsNeverHangSemasleep(t *testing.T) {
	if *flagQuick {
		t.Skip("-quick")
	}

	KeepAlive(c)
	KeepAlive(m)
	return ret
}
func pthread_cond_wait_trampoline()

//go:nosplit
//go:cgo_unsafe_args
func pthread_cond_timedwait_relative_np(c *pthreadcond, m *pthreadmutex, t *timespec) int32 {
	ret := libcCall(unsafe.Pointer(abi.FuncPCABI0(pthread_cond_timedwait_relative_np_trampoline)), unsafe.Pointer(&c))
	KeepAlive(c)
	KeepAlive(m)
	KeepAlive(t)

			return 0
		}
		if ns >= 0 {
			spent := nanotime() - start
			if spent >= ns {
				pthread_mutex_unlock(&mp.mutex)
				return -1
			}
			var t timespec
			t.setNsec(ns - spent)
			err := pthread_cond_timedwait_relative_np(&mp.cond, &mp.mutex, &t)
			if err == _ETIMEDOUT {
				pthread_mutex_unlock(&mp.mutex)
				return -1
			}
		} else {
			pthread_cond_wait(&mp.cond, &mp.mutex)
		}
	}
}

//go:nosplit