1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package main 6 7 import ( 8 "fmt" 9 "os" 10 "syscall" 11 "time" 12 13 _ "p" 14 ) 15 16 import "C" 17 18 var initCh = make(chan int, 1) 19 var ranMain bool 20 21 func init() { 22 // emulate an exceedingly slow package initialization function 23 time.Sleep(100 * time.Millisecond) 24 initCh <- 42 25 } 26 27 func main() { ranMain = true } 28 29 //export DidInitRun 30 func DidInitRun() bool { 31 select { 32 case x := <-initCh: 33 if x != 42 { 34 // Just in case initCh was not correctly made. 35 println("want init value of 42, got: ", x) 36 syscall.Exit(2) 37 } 38 return true 39 default: 40 return false 41 } 42 } 43 44 //export DidMainRun 45 func DidMainRun() bool { return ranMain } 46 47 //export CheckArgs 48 func CheckArgs() { 49 if len(os.Args) != 3 || os.Args[1] != "arg1" || os.Args[2] != "arg2" { 50 fmt.Printf("CheckArgs: want [_, arg1, arg2], got: %v\n", os.Args) 51 os.Exit(2) 52 } 53 } 54
