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Idle, GlobalEvents: use std::atomic::exchange()

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Less overhead than fetch_and() for what we do.
This commit is contained in:
Max Kellermann
2013-02-27 20:35:44 +01:00
parent a046b6e105
commit 19c67ab724
2 changed files with 2 additions and 2 deletions
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2
src/GlobalEvents.cxx
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@@ -59,7 +59,7 @@ GlobalEventCallback(G_GNUC_UNUSED GIOChannel *source,
if (!GlobalEvents::wake_fd.Read()) if (!GlobalEvents::wake_fd.Read())
return true; return true;
const unsigned flags = GlobalEvents::flags.fetch_and(0); const unsigned flags = GlobalEvents::flags.exchange(0);
for (unsigned i = 0; i < GlobalEvents::MAX; ++i) for (unsigned i = 0; i < GlobalEvents::MAX; ++i)
if (flags & (1u << i)) if (flags & (1u << i))

2
src/Idle.cxx
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@@ -61,7 +61,7 @@ idle_add(unsigned flags)
unsigned unsigned
idle_get(void) idle_get(void)
{ {
return idle_flags.fetch_and(0); return idle_flags.exchange(0);
} }
const char*const* const char*const*