[Tarantool-patches] [PATCH 1/1] txn_limbo: use fiber_clock() instead of fiber_time()

Vladislav Shpilevoy v.shpilevoy at tarantool.org
Tue Jul 21 00:11:39 MSK 2020


box.ctl.clear_synchro_queue() used fiber_time()
instead of fiber_clock() to wait for a timeout. This is wrong,
fiber_time() is realtime, not suitable for relative timeouts.

For that purpose always should be used monotonic clock. The patch
fixes that.

Follow up #4849
---
Branch: http://github.com/tarantool/tarantool/tree/gerold103/qsync-fiber_clock
Issue: https://github.com/tarantool/tarantool/issues/4849

 src/box/box.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/box/box.cc b/src/box/box.cc
index 7a7befc32..45340df2e 100644
--- a/src/box/box.cc
+++ b/src/box/box.cc
@@ -960,9 +960,9 @@ box_clear_synchro_queue(void)
 
 	/* Wait until pending confirmations/rollbacks reach us. */
 	double timeout = 2 * replication_synchro_timeout;
-	double start_tm = fiber_time();
+	double start_tm = fiber_clock();
 	while (!txn_limbo_is_empty(&txn_limbo)) {
-		if (fiber_time() - start_tm > timeout)
+		if (fiber_clock() - start_tm > timeout)
 			break;
 		fiber_sleep(0.001);
 	}
-- 
2.21.1 (Apple Git-122.3)



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