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SourceImpl::GetNextFrame(): Avoid spurious wakeups.

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This commit is contained in:
Peter Johnson
2016-10-26 23:31:18 -07:00
parent 0053962182
commit a5f63c3ae3
1 changed files with 2 additions and 2 deletions
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4
src/SourceImpl.cpp
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@@ -56,8 +56,8 @@ Frame SourceImpl::GetCurFrame() {
Frame SourceImpl::GetNextFrame() {
std::unique_lock<std::mutex> lock{m_frameMutex};
// TODO: handle spurious wakeup by comparing frame timestamps
m_frameCv.wait(lock);
auto oldTime = m_frame.time();
m_frameCv.wait(lock, [=] { return m_frame.time() != oldTime; });
return m_frame;
}