std::condition_variable::condition_variable - cppreference.com (original) (raw)

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Concurrency support library

Threads thread(C++11) jthread(C++20) hardware_destructive_interference_sizehardware_constructive_interference_size(C++17)(C++17) this_thread namespace get_id(C++11) yield(C++11) sleep_for(C++11) sleep_until(C++11) Cooperative cancellation stop_token(C++20) inplace_stop_token(C++26) never_stop_token(C++26) stop_source(C++20) inplace_stop_source(C++26) stop_callback(C++20) inplace_stop_callback(C++26) stop_callback_for_t(C++26) stoppable_token(C++26) unstoppable_token(C++26) stoppable-source(C++26) stoppable-callback-for(C++26) Mutual exclusion mutex(C++11) recursive_mutex(C++11) shared_mutex(C++17) timed_mutex(C++11) recursive_timed_mutex(C++11) shared_timed_mutex(C++14) Generic lock management lock(C++11) lock_guard(C++11) scoped_lock(C++17) unique_lock(C++11) shared_lock(C++14) once_flag(C++11) call_once(C++11) try_lock(C++11) defer_locktry_to_lockadopt_lockdefer_lock_ttry_to_lock_tadopt_lock_t(C++11)(C++11)(C++11)(C++11)(C++11)(C++11) Condition variables condition_variable(C++11) condition_variable_any(C++11) notify_all_at_thread_exit(C++11) cv_status(C++11) Semaphores counting_semaphorebinary_semaphore(C++20)(C++20) Latches and Barriers latch(C++20)barrier(C++20) Futures promise(C++11) future(C++11) shared_future(C++11) packaged_task(C++11) async(C++11) launch(C++11) future_status(C++11) future_error(C++11) future_category(C++11) future_errc(C++11) Safe reclamation rcu_obj_base(C++26) rcu_domain(C++26) rcu_default_domain(C++26) rcu_synchronize(C++26) rcu_barrier(C++26) rcu_retire(C++26) Hazard pointers hazard_pointer_obj_base(C++26) hazard_pointer(C++26) make_hazard_pointer(C++26) Atomic types atomic(C++11) atomic_ref(C++20) atomic_flag(C++11) Initialization of atomic types atomic_init(C++11)(deprecated in C++20) ATOMIC_VAR_INIT(C++11)(deprecated in C++20) ATOMIC_FLAG_INIT(C++11) Memory ordering memory_order(C++11) kill_dependency(C++11)(deprecated in C++26) atomic_thread_fence(C++11) atomic_signal_fence(C++11) Free functions for atomic operations atomic_storeatomic_store_explicit(C++11)(C++11) atomic_loadatomic_load_explicit(C++11)(C++11) atomic_exchangeatomic_exchange_explicit(C++11)(C++11) atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit(C++11)(C++11)(C++11)(C++11) atomic_fetch_addatomic_fetch_add_explicit(C++11)(C++11) atomic_fetch_subatomic_fetch_sub_explicit(C++11)(C++11) atomic_fetch_andatomic_fetch_and_explicit(C++11)(C++11) atomic_fetch_oratomic_fetch_or_explicit(C++11)(C++11) atomic_fetch_xoratomic_fetch_xor_explicit(C++11)(C++11) atomic_fetch_maxatomic_fetch_max_explicit(C++26)(C++26) atomic_fetch_minatomic_fetch_min_explicit(C++26)(C++26) atomic_is_lock_free(C++11) atomic_waitatomic_wait_explicit(C++20)(C++20) atomic_notify_one(C++20) atomic_notify_all(C++20) Free functions for atomic flags atomic_flag_test_and_setatomic_flag_test_and_set_explicit(C++11)(C++11) atomic_flag_clearatomic_flag_clear_explicit(C++11)(C++11) atomic_flag_testatomic_flag_test_explicit(C++20)(C++20) atomic_flag_waitatomic_flag_wait_explicit(C++20)(C++20) atomic_flag_notify_one(C++20) atomic_flag_notify_all(C++20)

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std::condition_variable

Member functions
condition_variable::condition_variable
condition_variable::~condition_variable
Notification
condition_variable::notify_one
condition_variable::notify_all
Waiting
condition_variable::wait
condition_variable::wait_for
condition_variable::wait_until
Native handle
condition_variable::native handle

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condition_variable(); (1) (since C++11)
condition_variable( const condition_variable& ) = delete; (2) (since C++11)

  1. Constructs an object of type std::condition_variable.

  2. Copy constructor is deleted.

[edit] Parameters

(none)

[edit] Exceptions

  1. May throw std::system_error with std::error_condition equal to std::errc::operation_not_permitted if the thread has no privilege to create a condition variable, std::errc::resource_unavailable_try_again if a non-memory resource limitation prevents this initialization, or another implementation-defined value.

[edit] See also

C documentation for cnd_init