1 #ifndef OSMIUM_THREAD_QUEUE_HPP
2 #define OSMIUM_THREAD_QUEUE_HPP
38 #include <condition_variable>
74 #ifdef OSMIUM_DEBUG_QUEUE_SIZE
75 size_t m_largest_size;
80 std::atomic<int> m_full_counter;
92 Queue(
size_t max_size = 0,
const std::string& name =
"") :
98 #ifdef OSMIUM_DEBUG_QUEUE_SIZE
107 #ifdef OSMIUM_DEBUG_QUEUE_SIZE
108 std::cerr <<
"queue '" << m_name <<
"' with max_size=" << m_max_size <<
" had largest size " << m_largest_size <<
" and was full " << m_full_counter <<
" times\n";
118 while (
size() >= m_max_size) {
120 #ifdef OSMIUM_DEBUG_QUEUE_SIZE
125 std::lock_guard<std::mutex> lock(m_mutex);
126 m_queue.push(std::move(value));
127 #ifdef OSMIUM_DEBUG_QUEUE_SIZE
128 if (m_largest_size < m_queue.size()) {
129 m_largest_size = m_queue.size();
132 m_data_available.notify_one();
136 std::unique_lock<std::mutex> lock(m_mutex);
137 m_data_available.wait(lock, [
this] {
138 return !m_queue.empty();
140 value=std::move(m_queue.front());
145 std::unique_lock<std::mutex> lock(m_mutex);
146 if (!m_data_available.wait_for(lock, std::chrono::seconds(1), [
this] {
147 return !m_queue.empty();
151 value=std::move(m_queue.front());
156 std::lock_guard<std::mutex> lock(m_mutex);
157 if (m_queue.empty()) {
160 value=std::move(m_queue.front());
166 std::lock_guard<std::mutex> lock(m_mutex);
167 return m_queue.empty();
171 std::lock_guard<std::mutex> lock(m_mutex);
172 return m_queue.size();
181 #endif // OSMIUM_THREAD_QUEUE_HPP
size_t size() const
Definition: queue.hpp:170
bool empty() const
Definition: queue.hpp:165
std::mutex m_mutex
Definition: queue.hpp:67
~Queue()
Definition: queue.hpp:106
std::queue< T > m_queue
Definition: queue.hpp:69
const std::string m_name
Name of this queue (for debugging only).
Definition: queue.hpp:65
const size_t m_max_size
Definition: queue.hpp:62
Namespace for everything in the Osmium library.
Definition: assembler.hpp:55
void wait_and_pop_with_timeout(T &value)
Definition: queue.hpp:144
bool try_pop(T &value)
Definition: queue.hpp:155
void wait_and_pop(T &value)
Definition: queue.hpp:135
void push(T value)
Definition: queue.hpp:116
#define OSMIUM_CONSTEXPR
Definition: compatibility.hpp:43
Queue(size_t max_size=0, const std::string &name="")
Definition: queue.hpp:92
OSMIUM_CONSTEXPR std::chrono::milliseconds full_queue_sleep_duration
Definition: queue.hpp:52
std::condition_variable m_data_available
Used to signal readers when data is available in the queue.
Definition: queue.hpp:72