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-rw-r--r--osdep/BlockingQueue.hpp27
1 files changed, 21 insertions, 6 deletions
diff --git a/osdep/BlockingQueue.hpp b/osdep/BlockingQueue.hpp
index 34abcb67..43ae7435 100644
--- a/osdep/BlockingQueue.hpp
+++ b/osdep/BlockingQueue.hpp
@@ -42,7 +42,7 @@ template <class T>
class BlockingQueue
{
public:
- BlockingQueue(void) {}
+ BlockingQueue(void) : r(true) {}
inline void post(T t)
{
@@ -51,19 +51,34 @@ public:
c.notify_one();
}
- inline T get(void)
+ inline void stop(void)
+ {
+ std::lock_guard<std::mutex> lock(m);
+ r = false;
+ c.notify_all();
+ }
+
+ /**
+ * @param value Value to set to next queue item if return value is true
+ * @return False if stop() has been called, true otherwise
+ */
+ inline bool get(T &value)
{
std::unique_lock<std::mutex> lock(m);
- while(q.empty())
+ if (!r) return false;
+ while (q.empty()) {
c.wait(lock);
- T val = q.front();
+ if (!r) return false;
+ }
+ value = q.front();
q.pop();
- return val;
+ return true;
}
private:
+ volatile bool r;
std::queue<T> q;
- mutable std::mutex m;
+ std::mutex m;
std::condition_variable c;
};