golang plugin传送引用方式调用插件

（1）编写插件

package main
import "fmt"
var Close []float64
func Sum() float64 { var sum float64 = 0.0 for i, v := range Close { sum += v fmt.Printf("%v ==> v:%p close[i]:%p \n", i, &v, &Close[i]) }
return sum }
编译:go build -buildmode=plugin cp plugin_M1.so ../testplugin (2)调用 package main
import ( "fmt" "plugin" )
func main() { p, err := plugin.Open("plugin_M1.so") if err != nil { panic(err) }
v, err := p.Lookup("Close") if err != nil { panic(err) }
para := v.(*[]float64) iniarr := make([]float64, 5) for i := 0; i < len(iniarr); i++ { iniarr[i] = float64(i) fmt.Printf("test %v ==> %p\n", i, &iniarr[i]) } *para = iniarr
v2, err := p.Lookup("Sum") if err != nil { panic(err) }
fun := v2.(func() float64) fmt.Println(fun()) } 编译输出：

jtwang@localhost:~/code/src/baocang.com/testplugin> go build
jtwang@localhost:~/code/src/baocang.com/testplugin> go run .
test 0 ==> 0xc00012e060
test 1 ==> 0xc00012e068
test 2 ==> 0xc00012e070
test 3 ==> 0xc00012e078
test 4 ==> 0xc00012e080
0 ==> v:0xc000132040 close[i]:0xc00012e060
1 ==> v:0xc000132040 close[i]:0xc00012e068
2 ==> v:0xc000132040 close[i]:0xc00012e070
3 ==> v:0xc000132040 close[i]:0xc00012e078
4 ==> v:0xc000132040 close[i]:0xc00012e080
10