名前空間
変種
操作

std::recursive_timed_mutex::lock

提供: cppreference.com

 
 
スレッドのサポートライブラリ
スレッド
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空間
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)
相互排除
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)
汎用のロック管理
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)
条件変数
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)
先物
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::recursive_timed_mutex
メンバ関数
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.
recursive_timed_mutex::recursive_timed_mutex
ロック
Original:
Locking
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
recursive_timed_mutex::lock
recursive_timed_mutex::try_lock
recursive_timed_mutex::try_lock_for
recursive_timed_mutex::try_lock_until
recursive_timed_mutex::unlock
ネイティブハンドル
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.
recursive_timed_mutex::native_handle
 
void lock();
(C++11およびそれ以降)
ミューテックスをロックします。別のスレッドが既にミューテックスをロックしていた場合にロックが取得されるまで、lockへの呼び出しは実行をブロックします。.
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.

A thread may call lock on a recursive mutex repeatedly. Ownership will only be released after the thread makes a matching number of calls to unlock.

The maximum number of levels of ownership is unspecified. An exception of type std::system_error will be thrown if this number is exceeded.

目次

[編集] パラメータ

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

[編集] 値を返します

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

[編集] 例外

エラーが発生したときに、その仕様を満たすことからstd::system_errorを防ぐことができ、基礎となるオペレーティング·システムからのエラーを含む、lockをスロー.
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.

[編集]

この例では、lockunlockが共有データを保護するために使用できる方法を示しています。.
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();
}

Possible output:

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

[編集] も参照してください

ミューテックスが使用できない場合は戻りますが、mutexをロックしようとします
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.

(パブリックメンバ関数) [edit]
ミューテックスは、指定されたタイムアウト期間のbeen
unavailable持っている場合、返品をmutexをロックしようとします
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.

(パブリックメンバ関数) [edit]
、mutexをロックしようとし、指定された時点に達するまで、ミューテックスがbeen
unavailable持っている場合を返します
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.

(パブリックメンバ関数) [edit]
ミューテックスのロックを解除します
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.

(パブリックメンバ関数) [edit]