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doc: Fix deadlocks in tutorial due to yield bustage

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This commit is contained in:
Brian Anderson 2013-08-06 13:25:09 -07:00
parent ad8010fdf2
commit b735e6b104
1 changed files with 6 additions and 3 deletions
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9
doc/tutorial-tasks.md
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@ -492,7 +492,8 @@ either task fails, it kills the other one.
~~~
# use std::task;
# fn sleep_forever() { loop { task::yield() } }
# use std::comm::oneshot;
# fn sleep_forever() { loop { let (p, c) = oneshot::<()>(); p.recv(); } }
# do task::try {
do spawn {
do spawn {
@ -513,9 +514,10 @@ before returning. Hence:
~~~
# use std::comm::{stream, Chan, Port};
# use std::comm::oneshot;
# use std::task::{spawn, try};
# use std::task;
# fn sleep_forever() { loop { task::yield() } }
# fn sleep_forever() { loop { let (p, c) = oneshot::<()>(); p.recv(); } }
# do task::try {
let (receiver, sender): (Port<int>, Chan<int>) = stream();
do spawn { // Bidirectionally linked
@ -543,7 +545,8 @@ an intermediate generation has already exited:
~~~
# use std::task;
# fn sleep_forever() { loop { task::yield() } }
# use std::comm::oneshot;
# fn sleep_forever() { loop { let (p, c) = oneshot::<()>(); p.recv(); } }
# fn wait_for_a_while() { for _ in range(0, 1000u) { task::yield() } }
# do task::try::<int> {
do task::spawn_supervised {