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std::unique_lock::try_lock

提供: cppreference.com
< cpp‎ | thread‎ | unique lock

 
 
スレッドのサポートライブラリ
スレッド
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Threads
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thread(C++11)
this_thread空間
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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)
相互排除
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Mutual exclusion
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mutex(C++11)
timed_mutex(C++11)
汎用のロック管理
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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
(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)
条件変数
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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)
先物
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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::unique_lock
メンバ関数
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Member functions
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unique_lock::unique_lock
unique_lock::~unique_lock
unique_lock::operator=
ロック
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Locking
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unique_lock::lock
unique_lock::try_lock
unique_lock::try_lock_for
unique_lock::try_lock_until
unique_lock::unlock
修飾子
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Modifiers
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unique_lock::swap
unique_lock::release
オブザーバー
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Observers
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unique_lock::mutex
unique_lock::owns_lock
unique_lock::operator bool
非メンバ関数
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Non-member functions
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std::swap
 
bool try_lock();
(C + + 11以来)
ブロックせずに、関連付けられたmutexをロックしようとします。効果的にmutex()->try_lock()呼び出し.
Original:
Tries to lock the associated mutex without blocking. Effectively calls mutex()->try_lock().
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std::system_errorどんな関連ミューテックスが存在しない場合にスローされた場合、またはミューテックスが既にロックされている場合.
Original:
std::system_error is thrown if there is no associated mutex or if the mutex is already locked.
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目次

[編集] パラメータ

(なし)
Original:
(none)
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[編集] 値を返します

trueミューテックスの所有権がfalseそうでなければ、正常に取得されている場合.
Original:
true if the ownership of the mutex has been acquired successfully, false otherwise.
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[編集] 例外

  • mutex()->try_lock()によってスローされた例外
    Original:
    Any exceptions thrown by mutex()->try_lock()
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  • 関連付けられたミューテックス、std::system_errorのエラーコードでstd::errc::operation_not_permittedが存在しない場合
    Original:
    If there is no associated mutex, std::system_error with an error code of std::errc::operation_not_permitted
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  • std::system_errorのエラーコードでミューテックスが既にロックされている場合、std::errc::resource_deadlock_would_occur
    Original:
    If the mutex is already locked, std::system_error with an error code of std::errc::resource_deadlock_would_occur
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[編集]

[編集] も参照してください

locks the associated mutex
(パブリックメンバ関数) [edit]
ミューテックスが指定した時間のために利用できなかった場合に、対応するTimedLockableミューテックス、返品をロックしようとします
Original:
attempts to lock the associated TimedLockable mutex, returns if the mutex has been unavailable for the specified time duration
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(パブリックメンバ関数) [edit]
指定された時点に達するまで、ミューテックスが使用不能になっている場合に、対応するTimedLockableミューテックス、リターンをロックしようとします
Original:
tries to lock the associated TimedLockable mutex, returns if the mutex has been unavailable until specified time point has been reached
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(パブリックメンバ関数) [edit]
関連するミューテックスのロックを解除します
Original:
unlocks the associated mutex
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(パブリックメンバ関数) [edit]