From 936bcecc50a7315e6f000e89fe610c25a2261f05 Mon Sep 17 00:00:00 2001
From: Dmitry Simonenko <pmwkaa@gmail.com>
Date: Tue, 8 Aug 2017 16:50:28 +0300
Subject: [PATCH] odissey: introduce atomic.h

---
 sources/atomic.h | 61 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 sources/atomic.h

diff --git a/sources/atomic.h b/sources/atomic.h
new file mode 100644
index 00000000..01642eb9
--- /dev/null
+++ b/sources/atomic.h
@@ -0,0 +1,61 @@
+#ifndef OD_ATOMIC_H
+#define OD_ATOMIC_H
+
+/*
+ * Odissey.
+ *
+ * Advanced PostgreSQL connection pooler.
+*/
+
+typedef volatile uint32_t od_atomic_u32_t;
+typedef volatile uint64_t od_atomic_u64_t;
+
+static inline void
+od_atomic_u32_inc(od_atomic_u32_t *atomic)
+{
+	__sync_fetch_and_add(atomic, 1);
+}
+
+static inline void
+od_atomic_u32_dec(od_atomic_u32_t *atomic)
+{
+	__sync_fetch_and_sub(atomic, 1);
+}
+
+static inline void
+od_atomic_u32_add(od_atomic_u32_t *atomic, uint32_t value)
+{
+	__sync_add_and_fetch(atomic, value);
+}
+
+static inline void
+od_atomic_u32_sub(od_atomic_u32_t *atomic, uint32_t value)
+{
+	__sync_sub_and_fetch(atomic, value);
+}
+
+static inline void
+od_atomic_u64_inc(od_atomic_u64_t *atomic)
+{
+	__sync_fetch_and_add(atomic, 1);
+}
+
+static inline void
+od_atomic_u64_dec(od_atomic_u64_t *atomic)
+{
+	__sync_fetch_and_sub(atomic, 1);
+}
+
+static inline void
+od_atomic_u64_add(od_atomic_u64_t *atomic, uint64_t value)
+{
+	__sync_add_and_fetch(atomic, value);
+}
+
+static inline void
+od_atomic_u64_sub(od_atomic_u64_t *atomic, uint64_t value)
+{
+	__sync_sub_and_fetch(atomic, value);
+}
+
+#endif /* OD_ATOMIC_H */