summaryrefslogtreecommitdiffstats
path: root/misc/cgo/testplugin/testdata/issue25756/plugin/life.go
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--misc/cgo/testplugin/testdata/issue25756/plugin/life.go39
1 files changed, 39 insertions, 0 deletions
diff --git a/misc/cgo/testplugin/testdata/issue25756/plugin/life.go b/misc/cgo/testplugin/testdata/issue25756/plugin/life.go
new file mode 100644
index 0000000..675a192
--- /dev/null
+++ b/misc/cgo/testplugin/testdata/issue25756/plugin/life.go
@@ -0,0 +1,39 @@
+// Copyright 2010 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.
+
+package main
+
+// #include "life.h"
+import "C"
+
+import "unsafe"
+
+func Run(gen, x, y int, a []int32) {
+ n := make([]int32, x*y)
+ for i := 0; i < gen; i++ {
+ C.Step(C.int(x), C.int(y), (*C.int)(unsafe.Pointer(&a[0])), (*C.int)(unsafe.Pointer(&n[0])))
+ copy(a, n)
+ }
+}
+
+// Keep the channels visible from Go.
+var chans [4]chan bool
+
+//export GoStart
+// Double return value is just for testing.
+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
+ }()
+ chans[i] = c
+ return int(i), int(i + 100)
+}
+
+//export GoWait
+func GoWait(i C.int) {
+ <-chans[i]
+ chans[i] = nil
+}