go life 源码
golang life 代码
文件路径：/misc/cgo/life/testdata/life.go
// skip
// 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 cgolife
// #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
}
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