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From: Alexandre Oliva <>
Subject: [PATCH] libstdc++: testsuite: call sched_yield for nonpreemptive targets
Date: Tue, 21 Jun 2022 02:52:55 -0300	[thread overview]
Message-ID: <> (raw)

As in the gcc testsuite, systems without preemptive multi-threading
require sched_yield calls to be placed at points in which a context
switch might be needed to enable the test to complete.

Regstrapped on x86_64-linux-gnu, also tested with a cross to
aarch64-rtems6.  Ok to install?

for  libstdc++-v3/ChangeLog

	* testsuite/30_threads/this_thread/ (test02): Call
 .../testsuite/30_threads/this_thread/      |    1 +
 1 file changed, 1 insertion(+)

diff --git a/libstdc++-v3/testsuite/30_threads/this_thread/ b/libstdc++-v3/testsuite/30_threads/this_thread/
index ad6f9aeffcc80..12dbeba1cc492 100644
--- a/libstdc++-v3/testsuite/30_threads/this_thread/
+++ b/libstdc++-v3/testsuite/30_threads/this_thread/
@@ -59,6 +59,7 @@ test02()
   while (!sleeping)
     // Wait for the thread to start sleeping.
+    sched_yield ();
   while (sleeping)

Alexandre Oliva, happy hacker      
   Free Software Activist                       GNU Toolchain Engineer
Disinformation flourishes because many people care deeply about injustice
but very few check the facts.  Ask me about <>

             reply	other threads:[~2022-06-21  5:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-21  5:52 Alexandre Oliva [this message]
2022-06-21  7:38 ` Jonathan Wakely
2022-06-22  0:20   ` Alexandre Oliva

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