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@AntiKnot

AntiKnot/Makefile

Created January 16, 2022 03:07
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go Plugin demo
Raw
arithmetic.go
package main
func Add(x int, y int) int {
z := x + y
return z
}
func Minus(x int, y int) int {
z := x - y
return z
}
Raw
calculate.go
package main
import (
"fmt"
"log"
"plugin"
)
func loadPlugin(filename string) (func(int, int) int, func(int, int) int) {
p, err := plugin.Open(filename)
if err != nil {
log.Fatalf("cannot load plugin %v", filename)
}
xminusf, err := p.Lookup("Minus")
if err != nil {
log.Fatal("cannot load xminusf in %v", filename)
}
minusf := xminusf.(func(int, int) int)
xaddf, err := p.Lookup("Add")
if err != nil {
log.Fatal("cannot load xaddf in %v", filename)
}
addf := xaddf.(func(int, int) int)
return addf, minusf
}
func main() {
addf, minusf := loadPlugin("arithmetic.so")
r1 := addf(1, 1)
r2 := minusf(1, 1)
fmt.Printf("add 1 1 res is %v\n", r1)
fmt.Printf("minus 1 1 res is %v\n", r2)
}
Raw
Makefile
build:
go build -buildmode=plugin arithmetic.go
go build calculate.go
run:
./calculate
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