From 1252a5ebffca99690899c53234e8bd92215dcc8f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= <remi@remlab.net>
Date: Tue, 9 Aug 2011 18:48:13 +0300
Subject: [PATCH] Add helpers to store floats into vlc_atomic_t
(Lets assume that uintptr_t is big enough, i.e. 32-bits).
---
include/vlc_atomic.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/include/vlc_atomic.h b/include/vlc_atomic.h
index 39d02b4b5142..d21c8ad3b5b7 100644
--- a/include/vlc_atomic.h
+++ b/include/vlc_atomic.h
@@ -53,4 +53,21 @@ static inline uintptr_t vlc_atomic_dec (vlc_atomic_t *atom)
VLC_API uintptr_t vlc_atomic_swap(vlc_atomic_t *, uintptr_t);
VLC_API uintptr_t vlc_atomic_compare_swap(vlc_atomic_t *, uintptr_t, uintptr_t);
+/** Helper to retrieve a single precision from an atom. */
+static inline float vlc_atomic_getf(const vlc_atomic_t *atom)
+{
+ union { float f; uintptr_t i; } u;
+ u.i = vlc_atomic_get(atom);
+ return u.f;
+}
+
+/** Helper to store a single precision into an atom. */
+static inline float vlc_atomic_setf(vlc_atomic_t *atom, float f)
+{
+ union { float f; uintptr_t i; } u;
+ u.f = f;
+ vlc_atomic_set(atom, u.i);
+ return f;
+}
+
#endif
--
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