Add session timer

src/session/session_timer.cpp

@@ -0,0 +1,69 @@
+#include "session_timer.h"
+#include "session_private.h"
+
+struct session_timer
+{
+    struct timeouts *timeouts;
+};
+
+struct session_timer *session_timer_create()
+{
+    timeout_error_t err;
+    struct session_timer *timer = (struct session_timer *)calloc(1, sizeof(struct session_timer));
+    if (timer == NULL)
+    {
+        return NULL;
+    }
+
+    timer->timeouts = timeouts_open(0, &err);
+    if (timer->timeouts == NULL)
+    {
+        goto error;
+    }
+
+    return timer;
+
+error:
+    session_timer_destroy(timer);
+    return NULL;
+}
+
+void session_timer_destroy(struct session_timer *timer)
+{
+    if (timer)
+    {
+        if (timer->timeouts)
+        {
+            timeouts_close(timer->timeouts);
+        }
+
+        free(timer);
+        timer = NULL;
+    }
+}
+
+void session_timer_add_session(struct session_timer *timer, struct session *sess)
+{
+    struct timeout *timeout = &sess->timeout;
+    timeouts_add(timer->timeouts, timeout, sess->abs_expire_ts);
+}
+
+void session_timer_del_session(struct session_timer *timer, struct session *sess)
+{
+    struct timeout *timeout = &sess->timeout;
+    timeouts_del(timer->timeouts, timeout);
+}
+
+struct session *session_timer_expire_session(struct session_timer *timer, uint64_t abs_current_ts)
+{
+    timeouts_update(timer->timeouts, abs_current_ts);
+
+    struct timeout *timeout = timeouts_get(timer->timeouts);
+    if (timeout == NULL)
+    {
+        return NULL;
+    }
+
+    struct session *sess = (struct session *)timeout->callback.arg;
+    return sess;
+}