Adding upstream version 1.16.10.upstream/1.16.10upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 282 insertions, 0 deletions

diff --git a/test/chan/nonblock.go b/test/chan/nonblock.go
new file mode 100644
index 0000000..7e3c0c7
--- /dev/null
+++ b/test/chan/nonblock.go
@@ -0,0 +1,282 @@
+// run
+
+// 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.
+
+// Test channel operations that test for blocking.
+// Use several sizes and types of operands.
+
+package main
+
+import "runtime"
+import "time"
+
+func i32receiver(c chan int32, strobe chan bool) {
+	if <-c != 123 {
+		panic("i32 value")
+	}
+	strobe <- true
+}
+
+func i32sender(c chan int32, strobe chan bool) {
+	c <- 234
+	strobe <- true
+}
+
+func i64receiver(c chan int64, strobe chan bool) {
+	if <-c != 123456 {
+		panic("i64 value")
+	}
+	strobe <- true
+}
+
+func i64sender(c chan int64, strobe chan bool) {
+	c <- 234567
+	strobe <- true
+}
+
+func breceiver(c chan bool, strobe chan bool) {
+	if !<-c {
+		panic("b value")
+	}
+	strobe <- true
+}
+
+func bsender(c chan bool, strobe chan bool) {
+	c <- true
+	strobe <- true
+}
+
+func sreceiver(c chan string, strobe chan bool) {
+	if <-c != "hello" {
+		panic("s value")
+	}
+	strobe <- true
+}
+
+func ssender(c chan string, strobe chan bool) {
+	c <- "hello again"
+	strobe <- true
+}
+
+var ticker = time.Tick(10 * 1000) // 10 us
+func sleep() {
+	<-ticker
+	<-ticker
+	runtime.Gosched()
+	runtime.Gosched()
+	runtime.Gosched()
+}
+
+const maxTries = 10000 // Up to 100ms per test.
+
+func main() {
+	var i32 int32
+	var i64 int64
+	var b bool
+	var s string
+
+	var sync = make(chan bool)
+
+	for buffer := 0; buffer < 2; buffer++ {
+		c32 := make(chan int32, buffer)
+		c64 := make(chan int64, buffer)
+		cb := make(chan bool, buffer)
+		cs := make(chan string, buffer)
+
+		select {
+		case i32 = <-c32:
+			panic("blocked i32sender")
+		default:
+		}
+
+		select {
+		case i64 = <-c64:
+			panic("blocked i64sender")
+		default:
+		}
+
+		select {
+		case b = <-cb:
+			panic("blocked bsender")
+		default:
+		}
+
+		select {
+		case s = <-cs:
+			panic("blocked ssender")
+		default:
+		}
+
+		go i32receiver(c32, sync)
+		try := 0
+	Send32:
+		for {
+			select {
+			case c32 <- 123:
+				break Send32
+			default:
+				try++
+				if try > maxTries {
+					println("i32receiver buffer=", buffer)
+					panic("fail")
+				}
+				sleep()
+			}
+		}
+		<-sync
+
+		go i32sender(c32, sync)
+		if buffer > 0 {
+			<-sync
+		}
+		try = 0
+	Recv32:
+		for {
+			select {
+			case i32 = <-c32:
+				break Recv32
+			default:
+				try++
+				if try > maxTries {
+					println("i32sender buffer=", buffer)
+					panic("fail")
+				}
+				sleep()
+			}
+		}
+		if i32 != 234 {
+			panic("i32sender value")
+		}
+		if buffer == 0 {
+			<-sync
+		}
+
+		go i64receiver(c64, sync)
+		try = 0
+	Send64:
+		for {
+			select {
+			case c64 <- 123456:
+				break Send64
+			default:
+				try++
+				if try > maxTries {
+					panic("i64receiver")
+				}
+				sleep()
+			}
+		}
+		<-sync
+
+		go i64sender(c64, sync)
+		if buffer > 0 {
+			<-sync
+		}
+		try = 0
+	Recv64:
+		for {
+			select {
+			case i64 = <-c64:
+				break Recv64
+			default:
+				try++
+				if try > maxTries {
+					panic("i64sender")
+				}
+				sleep()
+			}
+		}
+		if i64 != 234567 {
+			panic("i64sender value")
+		}
+		if buffer == 0 {
+			<-sync
+		}
+
+		go breceiver(cb, sync)
+		try = 0
+	SendBool:
+		for {
+			select {
+			case cb <- true:
+				break SendBool
+			default:
+				try++
+				if try > maxTries {
+					panic("breceiver")
+				}
+				sleep()
+			}
+		}
+		<-sync
+
+		go bsender(cb, sync)
+		if buffer > 0 {
+			<-sync
+		}
+		try = 0
+	RecvBool:
+		for {
+			select {
+			case b = <-cb:
+				break RecvBool
+			default:
+				try++
+				if try > maxTries {
+					panic("bsender")
+				}
+				sleep()
+			}
+		}
+		if !b {
+			panic("bsender value")
+		}
+		if buffer == 0 {
+			<-sync
+		}
+
+		go sreceiver(cs, sync)
+		try = 0
+	SendString:
+		for {
+			select {
+			case cs <- "hello":
+				break SendString
+			default:
+				try++
+				if try > maxTries {
+					panic("sreceiver")
+				}
+				sleep()
+			}
+		}
+		<-sync
+
+		go ssender(cs, sync)
+		if buffer > 0 {
+			<-sync
+		}
+		try = 0
+	RecvString:
+		for {
+			select {
+			case s = <-cs:
+				break RecvString
+			default:
+				try++
+				if try > maxTries {
+					panic("ssender")
+				}
+				sleep()
+			}
+		}
+		if s != "hello again" {
+			panic("ssender value")
+		}
+		if buffer == 0 {
+			<-sync
+		}
+	}
+}