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Avoid connected monitor reusing unavailable ID (#2731)

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This commit is contained in:
Tuur Vanhoutte
2023-07-18 12:12:05 +02:00
committed by GitHub
parent 4537860079
commit d2eb4fee76
2 changed files with 5 additions and 5 deletions
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8
src/Compositor.cpp
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@@ -1707,17 +1707,17 @@ void CCompositor::updateWindowAnimatedDecorationValues(CWindow* pWindow) {
}
int CCompositor::getNextAvailableMonitorID(std::string const& name) {
// reuse ID if it's already in the map
if (m_mMonitorIDMap.contains(name))
// reuse ID if it's already in the map, and the monitor with that ID is not being used by another monitor
if (m_mMonitorIDMap.contains(name) && !std::any_of(m_vRealMonitors.begin(), m_vRealMonitors.end(), [&](auto m) { return m->ID == m_mMonitorIDMap[name]; }))
return m_mMonitorIDMap[name];
// otherwise, find minimum available ID that is not in the map
std::unordered_set<int> usedIDs;
std::unordered_set<uint64_t> usedIDs;
for (auto const& monitor : m_vRealMonitors) {
usedIDs.insert(monitor->ID);
}
int nextID = 0;
uint64_t nextID = 0;
while (usedIDs.count(nextID) > 0) {
nextID++;
}