GoStart dt=5 g=53 g_seq=4
GoLabel dt=1 label_string=2
GoBlock dt=1751 reason_string=15 stack=5
GoUnblock dt=12 g=53 g_seq=5 stack=0
GoStart dt=6 g=53 g_seq=6
GoLabel dt=3 label_string=2
GoBlock dt=119 reason_string=15 stack=5
GoStart dt=15 g=88 g_seq=4
GoBlock dt=50 reason_string=13 stack=11
GoUnblock dt=1212 g=54 g_seq=15 stack=0
GoStart dt=6 g=54 g_seq=16
GoLabel dt=1 label_string=4

Frequency freq=15625000
EventBatch gen=1 m=1709048 time=7689670869319 size=423
ProcStart dt=409 p=7 p_seq=1
GoStart dt=31 g=34 g_seq=1
GoStop dt=291990 reason_string=16 stack=50
GoStart dt=21 g=34 g_seq=2
GoStop dt=315853 reason_string=16 stack=50
GoStart dt=30 g=34 g_seq=3
GoUnblock dt=173432 g=1 g_seq=73 stack=52
GoDestroy dt=96
GoStart dt=22 g=1 g_seq=74
HeapAlloc dt=79 heapalloc_value=26397576
HeapAlloc dt=51 heapalloc_value=26405640

EventBatch gen=1 m=1986496 time=2753925246280 size=267
ProcStart dt=549 p=0 p_seq=1
GoStart dt=211 g=18 g_seq=1
GoBlock dt=3533 reason_string=12 stack=21
GoStart dt=41 g=21 g_seq=1
GoBlock dt=150 reason_string=10 stack=22
GoStart dt=93 g=20 g_seq=1
GoSyscallBegin dt=51 p_seq=2 stack=23
GoSyscallEnd dt=400
GoBlock dt=582 reason_string=15 stack=25
GoStart dt=26 g=23 g_seq=1
HeapAlloc dt=50 heapalloc_value=1646592

	// Use Go to start 4 goroutines each of which handles 1/4 of the
	// board.
	r = GoStart(0, x, y, 0, x / 2, 0, y / 2, a, n);
	assert(r.r0 == 0 && r.r1 == 100);	// test multiple returns
	r = GoStart(1, x, y, x / 2, x, 0, y / 2, a, n);
	assert(r.r0 == 1 && r.r1 == 101);	// test multiple returns
	GoStart(2, x, y, 0, x / 2, y / 2, y, a, n);
	GoStart(3, x, y, x / 2, x, y / 2, y, a, n);
	GoWait(0);
	GoWait(1);
	GoWait(2);
	GoWait(3);
}

	// Use Go to start 4 goroutines each of which handles 1/4 of the
	// board.
	r = GoStart(0, x, y, 0, x / 2, 0, y / 2, a, n);
	assert(r.r0 == 0 && r.r1 == 100);	// test multiple returns
	r = GoStart(1, x, y, x / 2, x, 0, y / 2, a, n);
	assert(r.r0 == 1 && r.r1 == 101);	// test multiple returns
	GoStart(2, x, y, 0, x / 2, y / 2, y, a, n);
	GoStart(3, x, y, x / 2, x, y / 2, y, a, n);
	GoWait(0);
	GoWait(1);
	GoWait(2);
	GoWait(3);
}

Strings
String id=1
	data="whatever"
EventBatch gen=2 m=1 time=3 size=8
ProcStatus dt=1 p=1 pstatus=1
GoStart dt=1 g=1 g_seq=2
EventBatch gen=2 m=0 time=5 size=17
ProcStatus dt=1 p=0 pstatus=1
GoStatus dt=1 g=1 m=0 gstatus=1
GoStart dt=1 g=1 g_seq=1
GoStop dt=1 reason_string=1 stack=0
EventBatch gen=2 m=18446744073709551615 time=0 size=5
Frequency freq=15625000
EventBatch gen=2 m=18446744073709551615 time=0 size=1

	b11.Event("ProcStatus", trace.ProcID(1), go122.ProcRunning)
	b11.Event("GoStart", trace.GoID(1), testgen.Seq(1))
	b11.Event("GoStop", "whatever", testgen.NoStack)

	g2 := t.Generation(2)

	// Start running the goroutine, but later.
	b21 := g2.Batch(trace.ThreadID(1), 3)
	b21.Event("ProcStatus", trace.ProcID(1), go122.ProcRunning)
	b21.Event("GoStart", trace.GoID(1), testgen.Seq(2))

		copy(a, n)
	}
}

// Keep the channels visible from Go.
var chans [4]chan bool

// Double return value is just for testing.
//
//export GoStart
func GoStart(i, xdim, ydim, xstart, xend, ystart, yend C.int, a *C.int, n *C.int) (int, int) {
	c := make(chan bool, int(C.MYCONST))
	go func() {
		C.DoStep(xdim, ydim, xstart, xend, ystart, yend, a, n)
		c <- true
	}()

		copy(a, n)
	}
}

// Keep the channels visible from Go.
var chans [4]chan bool

// Double return value is just for testing.
//
//export GoStart
func GoStart(i, xdim, ydim, xstart, xend, ystart, yend C.int, a *C.int, n *C.int) (int, int) {
	c := make(chan bool, int(C.MYCONST))
	go func() {
		C.DoStep(xdim, ydim, xstart, xend, ystart, yend, a, n)
		c <- true
	}()

	b0 := g1.Batch(trace.ThreadID(0), 0)
	b0.Event("ProcStatus", trace.ProcID(0), go122.ProcRunning)
	b0.Event("GoCreate", trace.GoID(5), testgen.NoStack, testgen.NoStack)
	b0.Event("GoStart", trace.GoID(5), testgen.Seq(1))
	b0.Event("GoStop", "whatever", testgen.NoStack)