thread_queue_list: Make contains() and get_first() const member functions
These don't directly modify the contained data.
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@ -26,9 +26,9 @@ struct ThreadQueueList {
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}
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}
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// Only for debugging, returns priority level.
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// Only for debugging, returns priority level.
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Priority contains(const T& uid) {
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Priority contains(const T& uid) const {
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for (Priority i = 0; i < NUM_QUEUES; ++i) {
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for (Priority i = 0; i < NUM_QUEUES; ++i) {
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Queue& cur = queues[i];
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const Queue& cur = queues[i];
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if (std::find(cur.data.cbegin(), cur.data.cend(), uid) != cur.data.cend()) {
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if (std::find(cur.data.cbegin(), cur.data.cend(), uid) != cur.data.cend()) {
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return i;
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return i;
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}
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}
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@ -37,8 +37,8 @@ struct ThreadQueueList {
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return -1;
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return -1;
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}
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}
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T get_first() {
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T get_first() const {
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Queue* cur = first;
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const Queue* cur = first;
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while (cur != nullptr) {
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while (cur != nullptr) {
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if (!cur->data.empty()) {
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if (!cur->data.empty()) {
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return cur->data.front();
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return cur->data.front();
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