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// Copyright 2009 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
type Request struct {
a, b int;
replyc chan int;
}
type BinOp (a, b int) int;
func Run(op *BinOp, request *Request) {
result := op(request.a, request.b);
request.replyc <- result;
}
func Server(op *BinOp, service chan *Request) {
for {
request := <-service;
go Run(op, request); // don't wait for it
}
}
func StartServer(op *BinOp) chan *Request {
req := new(chan *Request);
go Server(op, req);
return req;
}
func main() {
adder := StartServer(func(a, b int) int { return a + b });
const N = 100;
var reqs [N]Request;
for i := 0; i < N; i++ {
req := &reqs[i];
req.a = i;
req.b = i + N;
req.replyc = new(chan int);
adder <- req;
}
for i := N-1; i >= 0; i-- { // doesn't matter what order
if <-reqs[i].replyc != N + 2*i {
print("fail at ", i, "\n");
}
}
print("done\n");
}
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