1 files changed, 71 insertions, 0 deletions
diff --git a/contrib/timer-wheel/timer-wheel.h b/contrib/timer-wheel/timer-wheel.h
new file mode 100644
index 00000000000..74b8dfdff5e
--- /dev/null
+++ b/contrib/timer-wheel/timer-wheel.h
@@ -0,0 +1,71 @@
+/*
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along
+  with this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef __TIMER_WHEEL_H
+#define __TIMER_WHEEL_H
+
+#include <pthread.h>
+
+#include "list.h"
+
+#define TVR_BITS  8
+#define TVN_BITS  6
+#define TVR_SIZE  (1 << TVR_BITS)
+#define TVN_SIZE  (1 << TVN_BITS)
+#define TVR_MASK  (TVR_SIZE - 1)
+#define TVN_MASK  (TVN_SIZE - 1)
+
+#define BITS_PER_LONG  64
+
+struct tvec {
+        struct list_head vec[TVN_SIZE];
+};
+
+struct tvec_root {
+        struct list_head vec[TVR_SIZE];
+};
+
+struct tvec_base {
+        pthread_spinlock_t lock;      /* base lock */
+
+        pthread_t runner;             /* run_timer() */
+
+        unsigned long timer_sec;      /* time counter */
+
+        struct tvec_root tv1;
+        struct tvec tv2;
+        struct tvec tv3;
+        struct tvec tv4;
+        struct tvec tv5;
+};
+
+struct gf_tw_timer_list {
+        void *data;
+        unsigned long expires;
+
+        /** callback routine */
+        void (*function)(struct gf_tw_timer_list *, void *, unsigned long);
+
+        struct list_head entry;
+};
+
+/** The API! */
+struct tvec_base *gf_tw_init_timers ();
+int gf_tw_cleanup_timers (struct tvec_base *);
+void gf_tw_add_timer (struct tvec_base *, struct gf_tw_timer_list *);
+void gf_tw_del_timer (struct gf_tw_timer_list *);
+
+#endif