gonuts / ffi Goto Github PK

#[no_mangle]
pub extern fn process() {
    let handles:Vec<_> = (0..10).map(|_|{
        thread::spawn(||{
            let mut x = 0;
            for _ in 0..5_000_000 {
                x += 1
            }
            x
        })
    }).collect();

    for h in handles {
        println!("Thread finished with count={}",
                 h.join().map_err(|_| "Could not join thread!").unwrap());
    }
    println!("done!");
}

package main

import (
	"fmt"
	"github.com/gonuts/ffi"
)

func main() {

	// dl-open a library: here, the math library on darwin
	lib, err := ffi.NewLibrary("libembed.rlib")


	// get a handle to 'cos', with the correct signature
	cos, err := lib.Fct("process", ffi.C_void, []ffi.Type{})
	handle_err(err)

	// call it
	out := cos(0.).Float()
	println("cos(0.)=", out)

	err = lib.Close()
	handle_err(err)
}

func handle_err(err error)  {
	if err != nil {
		fmt.Println("Error:",err)
	}
}

$ go version
go version go1.14.2 darwin/amd64

$ go get github.com/gonuts/ffi
# github.com/gonuts/ffi
$GOPATH/src/github.com/gonuts/ffi/ffi.go:190:7: cannot take the address of _Cmacro_ffi_type_uint()
$GOPATH/src/github.com/gonuts/ffi/ffi.go:192:7: cannot take the address of _Cmacro_ffi_type_sint()
$GOPATH/src/github.com/gonuts/ffi/type.go:244:50: cannot take the address of _Cmacro_ffi_type_uchar()
$GOPATH/src/github.com/gonuts/ffi/type.go:245:41: cannot take the address of _Cmacro_ffi_type_schar()
$GOPATH/src/github.com/gonuts/ffi/type.go:246:51: cannot take the address of _Cmacro_ffi_type_ushort()
$GOPATH/src/github.com/gonuts/ffi/type.go:247:42: cannot take the address of _Cmacro_ffi_type_sshort()
$GOPATH/src/github.com/gonuts/ffi/type.go:248:49: cannot take the address of _Cmacro_ffi_type_uint()
$GOPATH/src/github.com/gonuts/ffi/type.go:249:40: cannot take the address of _Cmacro_ffi_type_sint()
$GOPATH/src/github.com/gonuts/ffi/type.go:250:50: cannot take the address of _Cmacro_ffi_type_ulong()
$GOPATH/src/github.com/gonuts/ffi/type.go:251:41: cannot take the address of _Cmacro_ffi_type_slong()
$GOPATH/src/github.com/gonuts/ffi/ffi.go:192:7: too many errors