introduce mog_yield wrapper around sched_yield/pthread_yield

While pthread_yield is non-standard, it is relatively common and
preferable for systems where pthreads are _not_ 1:1 mapped to kernel
threads.  This also provides a stronger yield to weaken the priority
of the calling thread wherever we previously used sched_yield.

1 files changed, 3 insertions, 0 deletions

diff --git a/cmogstored.h b/cmogstored.h
index 580de8d..e6975c3 100644
--- a/cmogstored.h
+++ b/cmogstored.h
@@ -596,3 +596,6 @@ struct mog_ni {
 
 /* nameinfo.c */
 void mog_nameinfo(struct mog_packaddr *, struct mog_ni *);
+
+/* yield.c */
+void mog_yield(void);