Espaces de noms
Variantes

    std::timed_mutex::lock

    De cppreference.com
    See More

    [edit template]

    This page has been machine-translated from the English version of the wiki using Google Translate.

    The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

    Click here for the English version of this page

    <metanoindex/>

     
    C++
     
    Bibliothèque de support fil
    Threads
    Original:
    Threads
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    thread (C++11)
    this_thread espace de noms
    Original:
    this_thread namespace
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    get_id (C++11)
    yield (C++11)
    sleep_for (C++11)
    sleep_until (C++11)
    L'exclusion mutuelle
    Original:
    Mutual exclusion
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    mutex (C++11)
    timed_mutex (C++11)
    Gestion du verrouillage générique
    Original:
    Generic lock management
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    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)
    Les variables de condition
    Original:
    Condition variables
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    condition_variable (C++11)
    condition_variable_any (C++11)
    notify_all_at_thread_exit (C++11)
    cv_status (C++11)
    Futures
    Original:
    Futures
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    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
    Les fonctions membres
    Original:
    Member functions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    timed_mutex::timed_mutex
    Verrouiller
    Original:
    Locking
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    timed_mutex::lock
    timed_mutex::try_lock
    timed_mutex::try_lock_for
    timed_mutex::try_lock_until
    timed_mutex::unlock
    Handle natif
    Original:
    Native handle
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    timed_mutex::native_handle
     
    <tbody> </tbody>
    void lock();
    		 (depuis C++11)
    Verrouille le mutex. Si un autre thread a déjà verrouillé le mutex, un appel à lock bloque l'exécution jusqu'à ce que le verrou est acquis .
    Original:
    Locks the mutex. If another thread has already locked the mutex, a call to lock will block execution until the lock is acquired.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Paramètres

    (Aucun)
    Original:
    (none)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Retourne la valeur

    (Aucun)
    Original:
    (none)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Exceptions

    std::system_error jette quand des erreurs se produisent, y compris les erreurs du système d'exploitation sous-jacent qui empêcheraient lock de respecter ses spécifications .
    Original:
    Throws std::system_error when errors occur, including errors from the underlying operating system that would prevent lock from meeting its specifications.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Note

    A program may deadlock if a thread that already owns a mutex calls lock on that mutex. Alternatively, if an implementation can detect the deadlock, a resource_deadlock_would_occur error condition may be observed.

    Exemple

    Cet exemple montre comment lock et unlock peut être utilisé pour protéger les données partagées .
    Original:
    This example shows how lock and unlock can be used to protect shared data.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    #include <iostream>
#include <chrono>
#include <thread>
#include <mutex>

int g_num = 0;  // protected by g_num_mutex
std::mutex g_num_mutex;

void slow_increment(int id) 
{
  for (int i = 0; i < 3; ++i) {
    g_num_mutex.lock();
    ++g_num;
    std::cout << id << " => " << g_num << '\n';
    g_num_mutex.unlock();

    std::this_thread::sleep_for(std::chrono::seconds(1));
  }
}

int main()
{
  std::thread t1(slow_increment, 0);
  std::thread t2(slow_increment, 1);
  t1.join();
  t2.join();
}

    Résultat possible : 

    0 => 1
1 => 2
0 => 3
1 => 4
0 => 5
1 => 6

    Voir aussi
    essaie de verrouiller le mutex, retourne si le mutex n'est pas disponible
    Original:
    tries to lock the mutex, returns if the mutex is not available
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    (fonction membre publique) [edit]
    essaie de verrouiller le mutex, les retours si le mutex a been
    unavailable pour la durée d'attente spécifié
    Original:
    tries to lock the mutex, returns if the mutex has been
    unavailable for the specified timeout duration
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    (fonction membre publique) [edit]
    essaie de verrouiller le mutex, si le mutex retourne a been
    unavailable jusqu'à ce point dans le temps spécifié a été atteint
    Original:
    tries to lock the mutex, returns if the mutex has been
    unavailable until specified time point has been reached
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    (fonction membre publique) [edit]
    déverrouille le mutex
    Original:
    unlocks the mutex
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    (fonction membre publique) [edit]