libpulp: move expire_alarms() to pulp_tick() begin

Expiring alarms of sleeping fibers in pulp_schedule() has the potential
to prevent pulp_tick() from ever returning if there's always another
fiber expiring @ schedule.

In order to allow simple integration with external event loops, pulp_tick()
is supposed to operate on what is essentially a slice of runnable fibers
then immediately return control to the caller.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/pulp.c b/src/pulp.c
index fdb95cd..179451e 100644
--- a/src/pulp.c
+++ b/src/pulp.c
@@ -269,8 +269,6 @@ static void pulp_schedule(pulp_t *pulp)
 
 	assert(pulp);
 
-	expire_alarms(pulp);
-
 	current = pulp->current;
 	pulp->current = NULL;
 
@@ -296,6 +294,8 @@ int pulp_tick(pulp_t *pulp, unsigned *next_tick_delay_us)
 {
 	assert(pulp);
 
+	expire_alarms(pulp);
+
 	swap_context(&pulp->caller_context, &pulp->schedule_context);
 
 	if (pulp->exited)