From caa792897296f0b03b364ec64ce9065b010e1305 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 17 Aug 2009 03:50:04 +0200
Subject: libpulse: some minor optimizations when checking equality

---
 src/pulse/channelmap.c | 8 ++++++++
 src/pulse/sample.c     | 4 ++++
 src/pulse/volume.c     | 4 ++++
 3 files changed, 16 insertions(+)

diff --git a/src/pulse/channelmap.c b/src/pulse/channelmap.c
index 98f79b43..9b516262 100644
--- a/src/pulse/channelmap.c
+++ b/src/pulse/channelmap.c
@@ -453,6 +453,10 @@ int pa_channel_map_equal(const pa_channel_map *a, const pa_channel_map *b) {
     pa_assert(b);
 
     pa_return_val_if_fail(pa_channel_map_valid(a), 0);
+
+    if (PA_UNLIKELY(a == b))
+        return 1;
+
     pa_return_val_if_fail(pa_channel_map_valid(b), 0);
 
     if (a->channels != b->channels)
@@ -641,6 +645,10 @@ int pa_channel_map_superset(const pa_channel_map *a, const pa_channel_map *b) {
     pa_assert(b);
 
     pa_return_val_if_fail(pa_channel_map_valid(a), 0);
+
+    if (PA_UNLIKELY(a == b))
+        return 1;
+
     pa_return_val_if_fail(pa_channel_map_valid(b), 0);
 
     am = pa_channel_map_mask(a);
diff --git a/src/pulse/sample.c b/src/pulse/sample.c
index 0f19f8eb..d5d38eda 100644
--- a/src/pulse/sample.c
+++ b/src/pulse/sample.c
@@ -125,6 +125,10 @@ int pa_sample_spec_equal(const pa_sample_spec*a, const pa_sample_spec*b) {
     pa_assert(b);
 
     pa_return_val_if_fail(pa_sample_spec_valid(a), 0);
+
+    if (PA_UNLIKELY(a == b))
+        return 1;
+
     pa_return_val_if_fail(pa_sample_spec_valid(b), 0);
 
     return
diff --git a/src/pulse/volume.c b/src/pulse/volume.c
index e816d679..d7fb2477 100644
--- a/src/pulse/volume.c
+++ b/src/pulse/volume.c
@@ -40,6 +40,10 @@ int pa_cvolume_equal(const pa_cvolume *a, const pa_cvolume *b) {
     pa_assert(b);
 
     pa_return_val_if_fail(pa_cvolume_valid(a), 0);
+
+    if (PA_UNLIKELY(a == b))
+        return 1;
+
     pa_return_val_if_fail(pa_cvolume_valid(b), 0);
 
     if (a->channels != b->channels)
-- 
cgit