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https://github.com/golang/go
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293c8f8c65
will bring document in line in a later CL, which may include revisiting some of the names R=rsc DELTA=58 (0 added, 0 deleted, 58 changed) OCL=22906 CL=22908
55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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type request struct {
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a, b int;
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replyc chan int;
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}
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type binOp (a, b int) int;
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func run(op *binOp, request *request) {
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result := op(request.a, request.b);
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request.replyc <- result;
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}
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func server(op *binOp, service chan *request, quit chan bool) {
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for {
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select {
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case req := <-service:
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go run(op, req); // don't wait for it
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case <-quit:
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return;
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}
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}
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}
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func startServer(op *binOp) (service chan *request, quit chan bool) {
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service = make(chan *request);
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quit = make(chan bool);
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go server(op, service, quit);
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return service, quit;
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}
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func main() {
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adder, quit := startServer(func(a, b int) int { return a + b });
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const N = 100;
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var reqs [N]request;
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for i := 0; i < N; i++ {
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req := &reqs[i];
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req.a = i;
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req.b = i + N;
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req.replyc = make(chan int);
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adder <- req;
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}
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for i := N-1; i >= 0; i-- { // doesn't matter what order
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if <-reqs[i].replyc != N + 2*i {
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print("fail at ", i, "\n");
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}
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}
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quit <- true;
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}
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