109 lines
1.8 KiB
Go
109 lines
1.8 KiB
Go
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// Copyright 2015 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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/*
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void foo1(void) {}
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void foo2(void* p) {}
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*/
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import "C"
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import (
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"fmt"
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"os"
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"runtime"
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"strconv"
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"time"
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"unsafe"
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)
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func init() {
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register("CgoSignalDeadlock", CgoSignalDeadlock)
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register("CgoTraceback", CgoTraceback)
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register("CgoCheckBytes", CgoCheckBytes)
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}
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func CgoSignalDeadlock() {
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runtime.GOMAXPROCS(100)
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ping := make(chan bool)
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go func() {
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for i := 0; ; i++ {
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runtime.Gosched()
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select {
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case done := <-ping:
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if done {
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ping <- true
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return
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}
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ping <- true
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default:
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}
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func() {
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defer func() {
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recover()
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}()
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var s *string
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*s = ""
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fmt.Printf("continued after expected panic\n")
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}()
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}
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}()
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time.Sleep(time.Millisecond)
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start := time.Now()
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var times []time.Duration
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n := 64
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if os.Getenv("RUNTIME_TEST_SHORT") != "" {
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n = 16
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}
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for i := 0; i < n; i++ {
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go func() {
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runtime.LockOSThread()
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select {}
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}()
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go func() {
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runtime.LockOSThread()
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select {}
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}()
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time.Sleep(time.Millisecond)
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ping <- false
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select {
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case <-ping:
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times = append(times, time.Since(start))
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case <-time.After(time.Second):
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fmt.Printf("HANG 1 %v\n", times)
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return
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}
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}
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ping <- true
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select {
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case <-ping:
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case <-time.After(time.Second):
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fmt.Printf("HANG 2 %v\n", times)
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return
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}
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fmt.Printf("OK\n")
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}
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func CgoTraceback() {
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C.foo1()
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buf := make([]byte, 1)
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runtime.Stack(buf, true)
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fmt.Printf("OK\n")
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}
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func CgoCheckBytes() {
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try, _ := strconv.Atoi(os.Getenv("GO_CGOCHECKBYTES_TRY"))
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if try <= 0 {
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try = 1
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}
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b := make([]byte, 1e6*try)
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start := time.Now()
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for i := 0; i < 1e3*try; i++ {
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C.foo2(unsafe.Pointer(&b[0]))
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if time.Since(start) > time.Second {
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break
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}
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}
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}
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