[Minios-devel] [UNIKRAFT PATCH v4 07/12] lib/uksched: Add function for killing threads

[Costin Lupu <costin.lupu@xxxxxxxxx>]

Thread kill function replaces the thread destroy function as the
public function for triggering thread deaths.

Signed-off-by: Costin Lupu <costin.lupu@xxxxxxxxx>
Reviewed-by: Florian Schmidt <florian.schmidt@xxxxxxxxx>
---
 lib/uksched/exportsyms.uk       | 1 +
 lib/uksched/include/uk/sched.h  | 2 ++
 lib/uksched/include/uk/thread.h | 4 ++--
 lib/uksched/sched.c             | 5 +++++
 lib/ukschedcoop/schedcoop.c     | 2 +-
 plat/xen/xenbus/xs_comms.c      | 2 +-
 6 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/lib/uksched/exportsyms.uk b/lib/uksched/exportsyms.uk
index 3118383d..c67892c4 100644
--- a/lib/uksched/exportsyms.uk
+++ b/lib/uksched/exportsyms.uk
@@ -7,6 +7,7 @@ uk_sched_start
 uk_sched_idle_init
 uk_sched_thread_create
 uk_sched_thread_destroy
+uk_sched_thread_kill
 uk_sched_thread_sleep
 uk_sched_thread_exit
 uk_thread_init
diff --git a/lib/uksched/include/uk/sched.h b/lib/uksched/include/uk/sched.h
index e5630ed6..9e218688 100644
--- a/lib/uksched/include/uk/sched.h
+++ b/lib/uksched/include/uk/sched.h
@@ -217,6 +217,8 @@ struct uk_thread *uk_sched_thread_create(struct uk_sched 
*sched,
                void (*function)(void *), void *arg);
 void uk_sched_thread_destroy(struct uk_sched *sched,
                struct uk_thread *thread);
+void uk_sched_thread_kill(struct uk_sched *sched,
+               struct uk_thread *thread);
 
 static inline
 void uk_sched_thread_switch(struct uk_sched *sched,
diff --git a/lib/uksched/include/uk/thread.h b/lib/uksched/include/uk/thread.h
index 131268b4..f3891c29 100644
--- a/lib/uksched/include/uk/thread.h
+++ b/lib/uksched/include/uk/thread.h
@@ -69,8 +69,8 @@ UK_TAILQ_HEAD(uk_thread_list, struct uk_thread);
                        name, attr, function, data)
 #define uk_thread_create(name, function, data) \
        uk_thread_create_attr(name, NULL, function, data)
-#define uk_thread_destroy(thread) \
-       uk_sched_thread_destroy(thread->sched, thread)
+#define uk_thread_kill(thread) \
+       uk_sched_thread_kill(thread->sched, thread)
 void uk_thread_exit(struct uk_thread *thread);
 
 int uk_thread_wait(struct uk_thread *thread);
diff --git a/lib/uksched/sched.c b/lib/uksched/sched.c
index a0d706f5..5f6bc685 100644
--- a/lib/uksched/sched.c
+++ b/lib/uksched/sched.c
@@ -222,6 +222,11 @@ void uk_sched_thread_destroy(struct uk_sched *sched, 
struct uk_thread *thread)
        uk_free(sched->allocator, thread);
 }
 
+void uk_sched_thread_kill(struct uk_sched *sched, struct uk_thread *thread)
+{
+       uk_sched_thread_remove(sched, thread);
+}
+
 void uk_sched_thread_sleep(__nsec nsec)
 {
        struct uk_thread *thread;
diff --git a/lib/ukschedcoop/schedcoop.c b/lib/ukschedcoop/schedcoop.c
index 2a646760..a3f265c6 100644
--- a/lib/ukschedcoop/schedcoop.c
+++ b/lib/ukschedcoop/schedcoop.c
@@ -128,7 +128,7 @@ static void schedcoop_schedule(struct uk_sched *s)
                        continue;
 
                if (thread != prev)
-                       uk_thread_destroy(thread);
+                       uk_sched_thread_destroy(s, thread);
        }
 }
 
diff --git a/plat/xen/xenbus/xs_comms.c b/plat/xen/xenbus/xs_comms.c
index 0589d48b..5c393c1e 100644
--- a/plat/xen/xenbus/xs_comms.c
+++ b/plat/xen/xenbus/xs_comms.c
@@ -617,6 +617,6 @@ void xs_comms_fini(void)
        xsh.buf = NULL;
 
        /* TODO stop thread, instead of killing it */
-       uk_thread_destroy(xsh.thread);
+       uk_thread_kill(xsh.thread);
        xsh.thread = NULL;
 }
-- 
2.11.0


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