From f8e230049143412ac424d4cbfd4ca95b6c7f64e1 Mon Sep 17 00:00:00 2001
From: dimitri staessens <dimitri.staessens@intec.ugent.be>
Date: Wed, 28 Dec 2016 09:51:08 +0100
Subject: irmd: Hide reg_entry internal lock

---
 src/irmd/registry.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

(limited to 'src/irmd/registry.c')

diff --git a/src/irmd/registry.c b/src/irmd/registry.c
index 61d562fc..34d0a921 100644
--- a/src/irmd/registry.c
+++ b/src/irmd/registry.c
@@ -278,6 +278,9 @@ int reg_entry_add_api(struct reg_entry * e, pid_t api)
                 return -ENOMEM;
 
         i->pid = api;
+
+        pthread_mutex_lock(&e->state_lock);
+
         list_add(&i->next, &e->reg_apis);
 
         if (e->state == REG_NAME_IDLE ||
@@ -287,6 +290,8 @@ int reg_entry_add_api(struct reg_entry * e, pid_t api)
                 pthread_cond_signal(&e->state_cond);
         }
 
+        pthread_mutex_unlock(&e->state_lock);
+
         return 0;
 }
 
@@ -329,6 +334,52 @@ pid_t reg_entry_get_api(struct reg_entry * e)
         return list_first_entry(&e->reg_apis, struct pid_el, next)->pid;
 }
 
+enum reg_name_state reg_entry_get_state(struct reg_entry * e)
+{
+        enum reg_name_state state;
+
+        if (e == NULL)
+                return REG_NAME_NULL;
+
+        pthread_mutex_lock(&e->state_lock);
+
+        state = e->state;
+
+        pthread_mutex_unlock(&e->state_lock);
+
+        return state;
+}
+
+int reg_entry_set_state(struct reg_entry * e, enum reg_name_state state)
+{
+        if (state == REG_NAME_DESTROY)
+                return -EPERM;
+
+        pthread_mutex_lock(&e->state_lock);
+
+        e->state = state;
+        pthread_cond_broadcast(&e->state_cond);
+
+        pthread_mutex_unlock(&e->state_lock);
+
+        return 0;
+}
+
+int reg_entry_leave_state(struct reg_entry * e, enum reg_name_state state)
+{
+        if (e == NULL || state == REG_NAME_DESTROY)
+                return -EINVAL;
+
+        pthread_mutex_lock(&e->state_lock);
+
+        while (e->state == state)
+                pthread_cond_wait(&e->state_cond, &e->state_lock);
+
+        pthread_mutex_unlock(&e->state_lock);
+
+        return 0;
+}
+
 struct reg_entry * registry_get_entry(struct list_head * registry,
                                       char *             name)
 {
-- 
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