51 lines
993 B
C++
51 lines
993 B
C++
#include "index.h"
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namespace firesse {
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void Index::Add(Stream* stream) {
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std::lock_guard l(mu_);
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stream->last_message_time_ = std::chrono::steady_clock::now();
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stream->fresher_ = nullptr;
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stream->staler_ = freshest_;
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if (stream->staler_) {
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stream->staler_->fresher_ = stream;
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}
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freshest_ = stream;
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if (!stalest_) {
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stalest_ = stream;
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}
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}
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void Index::Remove(Stream* stream) {
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std::lock_guard l(mu_);
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if (freshest_ == stream) {
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freshest_ = stream->staler_;
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}
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if (stalest_ == stream) {
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stalest_ = stream->fresher_;
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}
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if (stream->fresher_) {
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stream->fresher_->staler_ = stream->staler_;
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stream->fresher_ = nullptr;
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}
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if (stream->staler_) {
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stream->staler_->fresher_ = stream->fresher_;
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stream->staler_ = nullptr;
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}
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}
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void Index::Freshen(Stream* stream) {
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std::lock_guard l(mu_);
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if (freshest_ == stream) {
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// Shortcut
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stream->last_message_time_ = std::chrono::steady_clock::now();
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return;
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}
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Remove(stream);
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Add(stream);
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}
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} // namespace firesse
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