Changeset ba25c4b in mainline for kernel/generic/src/time/clock.c

Timestamp:

2023-02-09T15:31:39Z (22 months ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

master, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

83789ea2

Parents:

78acbc72

git-author:

Jiří Zárevúcky <zarevucky.jiri@…> (2023-02-09 15:28:13)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2023-02-09 15:31:39)

Message:

Synchronize timeout_unregister() with handler execution

This ensures that when timeout_unregister() returns,
timeout handler either didn't run at all, or it ran to
completion and is no longer executing.

This will be handy a few patches later.

File:

• kernel/generic/src/time/clock.c (modified) (1 diff)

kernel/generic/src/time/clock.c

@@ -168 +168 @@
                 timeout_handler_t handler = timeout->handler;
                 void *arg = timeout->arg;
+                atomic_bool *finished = &timeout->finished;
 
                 irq_spinlock_unlock(&CPU->timeoutlock, false);
 
                 handler(arg);
+
+                /* Signal that the handler is finished. */
+                atomic_store_explicit(finished, true, memory_order_release);
 
                 irq_spinlock_lock(&CPU->timeoutlock, false);