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[SPSCQueue] limit the idx value #5

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[SPSCQueue] limit the idx value #5

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4 changes: 2 additions & 2 deletions SPSCQueue.h
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@ class SPSCQueue
}

void push() {
((std::atomic<uint32_t>*)&write_idx)->store(write_idx + 1, std::memory_order_release);
((std::atomic<uint32_t>*)&write_idx)->store((write_idx + 1) % CNT, std::memory_order_release);
}

template<typename Writer>
Expand All @@ -68,7 +68,7 @@ class SPSCQueue
}

void pop() {
((std::atomic<uint32_t>*)&read_idx)->store(read_idx + 1, std::memory_order_release);
((std::atomic<uint32_t>*)&read_idx)->store((read_idx + 1) % CNT, std::memory_order_release);
}

template<typename Reader>
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