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author | Ian Lance Taylor <iant@golang.org> | 2011-09-26 20:46:37 -0700 |
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committer | Ian Lance Taylor <iant@golang.org> | 2011-09-26 20:46:37 -0700 |
commit | 45301ba8c04cca3501d2324a7e30481e3ce022c0 (patch) | |
tree | 73db3b176e3459a4357952543bff02e4c13ae3cf /test/chan | |
parent | 9c643bb3fab4457c1a789e9aad75b5aaf7090753 (diff) | |
download | go-45301ba8c04cca3501d2324a7e30481e3ce022c0.tar.gz go-45301ba8c04cca3501d2324a7e30481e3ce022c0.zip |
runtime: check for nil value pointer in select syncsend case
Fixes #2309.
R=rsc, bradfitz
CC=golang-dev
https://golang.org/cl/5128053
Diffstat (limited to 'test/chan')
-rw-r--r-- | test/chan/select7.go | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/test/chan/select7.go b/test/chan/select7.go new file mode 100644 index 0000000000..5fed6cbd42 --- /dev/null +++ b/test/chan/select7.go @@ -0,0 +1,68 @@ +// $G $D/$F.go && $L $F.$A && ./$A.out + +// Copyright 2011 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. + +// Test select when discarding a value. + +package main + +import "runtime" + +func recv1(c <-chan int) { + <-c +} + +func recv2(c <-chan int) { + select { + case <-c: + } +} + +func recv3(c <-chan int) { + c2 := make(chan int) + select { + case <-c: + case <-c2: + } +} + +func send1(recv func(<-chan int)) { + c := make(chan int) + go recv(c) + runtime.Gosched() + c <- 1 +} + +func send2(recv func(<-chan int)) { + c := make(chan int) + go recv(c) + runtime.Gosched() + select { + case c <- 1: + } +} + +func send3(recv func(<-chan int)) { + c := make(chan int) + go recv(c) + runtime.Gosched() + c2 := make(chan int) + select { + case c <- 1: + case c2 <- 1: + } +} + +func main() { + send1(recv1) + send2(recv1) + send3(recv1) + send1(recv2) + send2(recv2) + send3(recv2) + send1(recv3) + send2(recv3) + send3(recv3) +} |