finalizers; merge package malloc into package runtime

R=r, cw
CC=golang-dev
https://golang.org/cl/198085

1 files changed, 58 insertions, 0 deletions

diff --git a/test/mallocfin.go b/test/mallocfin.go
new file mode 100644
index 0000000000..4c832583e0
--- /dev/null
+++ b/test/mallocfin.go
@@ -0,0 +1,58 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// trivial finalizer test
+
+package main
+
+import "runtime"
+
+const N = 250
+
+type A struct {
+	b *B
+	n int
+}
+
+type B struct {
+	n int
+}
+
+var i int
+var nfinal int
+var final [N]int
+
+func finalA(a *A) {
+	if final[a.n] != 0 {
+		panicln("finalA", a.n, final[a.n])
+	}
+	final[a.n] = 1
+}
+
+func finalB(b *B) {
+	if final[b.n] != 1 {
+		panicln("finalB", b.n, final[b.n])
+	}
+	final[b.n] = 2
+	nfinal++
+}
+
+func main() {
+	runtime.GOMAXPROCS(4)
+	for i = 0; i < N; i++ {
+		b := &B{i}
+		a := &A{b, i}
+		runtime.SetFinalizer(b, finalB)
+		runtime.SetFinalizer(a, finalA)
+	}
+	for i := 0; i < N; i++ {
+		runtime.GC()
+		runtime.Gosched()
+	}
+	if nfinal < N*9/10 {
+		panic("not enough finalizing:", nfinal, "/", N)
+	}
+}