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std::recursive_mutex

Da cppreference.com.
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Discussione libreria di supporto
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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)
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Mutua esclusione
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Mutual exclusion
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mutex(C++11)
timed_mutex(C++11)
recursive_mutex(C++11)
recursive_timed_mutex(C++11)
Blocco di gestione generico
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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
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(C++11)
(C++11)
lock(C++11)
try_lock(C++11)
defer_lock
try_to_lock
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Condition variables
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std::recursive_mutex
Membri funzioni
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Member functions
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recursive_mutex::recursive_mutex
Bloccaggio
Original:
Locking
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recursive_mutex::lock
recursive_mutex::try_lock
recursive_mutex::unlock
Maniglia nativo
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Native handle
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recursive_mutex::native_handle
 
Defined in header <mutex>
class recursive_mutex;
(dal C++11)
La classe recursive_mutex è una primitiva di sincronizzazione che può essere utilizzato per proteggere i dati condivisi vengano accedere contemporaneamente più thread.
Original:
The recursive_mutex class is a synchronization primitive that can be used to protect shared data from being simultaneously accessed by multiple threads.
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recursive_mutex offre esclusivi, semantica proprietà ricorsive:
Original:
recursive_mutex offers exclusive, recursive ownership semantics:
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  • Un thread chiamante' possiede un recursive_mutex per un periodo di tempo che inizia quando si chiama con successo sia lock o try_lock. Durante questo periodo, il filo potrebbe effettuare chiamate supplementari per lock o try_lock. Il periodo di possesso termina quando il thread fa un numero corrispondente di chiamate a unlock.
    Original:
    A calling thread owns a recursive_mutex for a period of time that starts when it successfully calls either lock or try_lock. During this period, the thread may make additional calls to lock or try_lock. The period of ownership ends when the thread makes a matching number of calls to unlock.
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  • Quando un thread possiede un recursive_mutex, tutti gli altri thread si blocca (per le chiamate verso lock) o ricevere un valore restituito false (per try_lock) se tentano di rivendicare la proprietà del recursive_mutex.
    Original:
    When a thread owns a recursive_mutex, all other threads will block (for calls to lock) or receive a false return value (for try_lock) if they attempt to claim ownership of the recursive_mutex.
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  • Il numero massimo di volte che un recursive_mutex possono essere bloccati non è specificato, ma dopo che il numero viene raggiunto, le chiamate a lock lancerà std::system_error e chiama a try_lock tornerà false.
    Original:
    The maximum number of times that a recursive_mutex may be locked is unspecified, but after that number is reached, calls to lock will throw std::system_error and calls to try_lock will return false.
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Il comportamento di un programma non è definito se un recursive_mutex viene distrutto mentre ancora di proprietà di un po 'di filo. La classe recursive_mutex non è copiabile.
Original:
The behavior of a program is undefined if a recursive_mutex is destroyed while still owned by some thread. The recursive_mutex class is non-copyable.
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Indice

[modifica] Membri tipi

Membro tipo
Original:
Member type
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Definition
native_handle_type
Implementazione definita
Original:
implementation-defined
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[modifica] Membri funzioni

costruisce il mutex
Original:
constructs the mutex
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(membro pubblico funzione) [edit]
Bloccaggio
Original:
Locking
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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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(membro pubblico funzione) [edit]
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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(membro pubblico funzione) [edit]
sblocca il mutex
Original:
unlocks the mutex
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(membro pubblico funzione) [edit]
Maniglia nativo
Original:
Native handle
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restituisce l'implementazione sottostante definito handle di thread
Original:
returns the underlying implementation-defined thread handle
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(membro pubblico funzione) [edit]