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std::timed_mutex::try_lock_until

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< cpp‎ | thread‎ | timed mutex

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C++
 
Discussione libreria di supporto
Threads
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Threads
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thread(C++11)
this_thread spazio dei nomi
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this_thread namespace
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get_id(C++11)
yield(C++11)
sleep_for(C++11)
sleep_until(C++11)
Mutua esclusione
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Mutual exclusion
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mutex(C++11)
timed_mutex(C++11)
Blocco di gestione generico
Original:
Generic lock management
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lock_guard(C++11)
unique_lock(C++11)
defer_lock_t
try_to_lock_t
adopt_lock_t		(C++11)
(C++11)
(C++11)
lock(C++11)
try_lock(C++11)
defer_lock
try_to_lock
adopt_lock		(C++11)
(C++11)
(C++11)
Condizioni variabili
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Condition variables
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condition_variable(C++11)
condition_variable_any(C++11)
notify_all_at_thread_exit(C++11)
cv_status(C++11)
Futures
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Futures
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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)
 
std::timed_mutex
Membri funzioni
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Member functions
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timed_mutex::timed_mutex
Bloccaggio
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Locking
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timed_mutex::lock
timed_mutex::try_lock
timed_mutex::try_lock_for
timed_mutex::try_lock_until
timed_mutex::unlock
Maniglia nativo
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Native handle
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timed_mutex::native_handle
 
template< class Clock, class Duration >
bool try_lock_until( const std::chrono::time_point<Clock,Duration>& timeout_time );
 (dal C++11)
Tenta di bloccare il mutex. Blocchi fino timeout_time specificata è stata raggiunta o il blocco viene acquisito, quello che viene prima. Il successo di acquisizione blocco true ritorni, altrimenti restituisce false. Può bloccare per più di fino timeout_time è stato raggiunto.
Original:
Tries to lock the mutex. Blocks until specified timeout_time has been reached or the lock is acquired, whichever comes first. On successful lock acquisition returns true, otherwise returns false. May block for longer than until timeout_time has been reached.
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Indice

[modifica] Parametri

timeout_time -
punto di tempo massimo per bloccare fino
Original:
maximum time point to block until
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[modifica] Valore di ritorno

true se il blocco è stato acquisito con successo, altrimenti false.
Original:
true if the lock was acquired successfully, otherwise false.
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[modifica] Eccezioni

This section is incomplete

[modifica] Esempio

Questo esempio mostra un blocco di due minuti
Original:
This example shows a two minute block
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#include <iostream>
#include <ctime>
#include <chrono>
#include <mutex>
 
int main()
{
    std::timed_mutex test;
    test.try_lock();
    auto now=std::chrono::steady_clock::now();
    test.try_lock_until(now+std::chrono::minutes(2));
    std::cout << "hello world";
 
}


[modifica] Vedi anche
blocca i blocchi mutex, se il mutex non è disponibile
Original:
locks the mutex, blocks if the mutex is not available
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(metodo pubblico) [modifica]
prova a bloccare il mutex, restituisce se il mutex non è disponibile
Original:
tries to lock the mutex, returns if the mutex is not available
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(metodo pubblico) [modifica]
prova a bloccare il mutex, restituisce se il mutex è been
unavailable per la durata del timeout specificato
Original:
tries to lock the mutex, returns if the mutex has been
unavailable for the specified timeout duration
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(metodo pubblico) [modifica]
sblocca il mutex
Original:
unlocks the mutex
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(metodo pubblico) [modifica]
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