Rumored Buzz on sleep
No synchronization is done on *this itself. Concurrently contacting be part of() on the identical thread object from various threads constitutes an information race that leads to undefined actions.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
If policy is std::start::async
remaining - pointer to the object To place the remaining time on interruption. Could be NULL, by which circumstance it truly is dismissed
Mutual exclusion algorithms prevent several threads from at the same time accessing shared resources. This stops details races and offers assist for synchronization concerning threads. Defined in header
Waits for The end result to be obtainable. Blocks until eventually specified timeout_duration has elapsed or The end result gets to be offered, whichever will come first. The return benefit identifies the state of the result.
Regardless of whether the clock in use is std::chrono::steady_clock or A further monotonic clock, a procedure clock adjustment may induce a spurious wakeup.
Continual Clarification future_status::deferred The shared condition includes a deferred operate employing lazy evaluation, so The end result is going to be computed only when explicitly asked for future_status::Prepared The result is ready future_status::timeout The timeout has expired [edit] Exceptions
This overload can be utilised to ignore spurious awakenings while looking ahead to a certain issue to become true.
This functionality may possibly block How sleep cycle works for lengthier than timeout_duration as a consequence of scheduling or source contention delays.
period and remaining might issue at the identical item, which simplifies re-managing the function following a signal.
std::start::deferred.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
Threads get started execution straight away upon building with the associated thread object (pending any OS scheduling delays), starting up at the top-degree purpose delivered as being a constructor argument. The return worth of the highest-amount function is dismissed and when it terminates by throwing an exception, std::terminate known as.
std::condition_variable can be a synchronization primitive applied that has a std::mutex to dam a number of threads right until A further thread both modifies a shared variable (the condition) and notifies the std::condition_variable.