shithub: mc

ref: ab327dfacd49c61feb0311e064c79bee7e8aec27
dir: /lib/thread/smoketest.myr/

use std
use sys
use thread

var val : uint64 = 0
var done : uint32 = 0
var mtx : thread.mutex

const Nherd = 20

const main = {
	atomictest()
	mtxtest()
}


const atomictest = {
	done = 0
	val = 0
	mkherd(Nherd, atomicincvar)
	while thread.xget(&done) != Nherd
		/* nothing */
	;;
	std.assert(val == 20_000_000, "atomics are broken\n")
}

const atomicincvar = {
	var i

	for i = 0; i < 1_000_000; i++
		thread.xadd(&val, 1)
	;;
	std.write(1, "done\n")
	thread.xadd(&done, 1)
}


const mtxincvar = {
	var i

	for i = 0; i < 100_000; i++
		thread.mtxlock(&mtx)
		val++
		thread.mtxunlock(&mtx)
	;;
	std.write(1, "done\n")
	thread.xadd(&done, 1)
}

const mtxtest = {
	done = 0
	val = 0

	mtx = thread.mkmtx()
	mkherd(Nherd, mtxincvar)
	while thread.xget(&done) != Nherd
		/* nothing */
	;;
	if val != 100_000 * 20
		std.fatal("mutexes are broken, got {}\n", val)
	;;
}

const mkherd = {n, fn
	for var i = 0; i < n; i++
		std.try(thread.spawn(fn))
	;;
}