std::condition_variable_any::notify_all
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< cpp | thread | condition variable any
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void notify_all(); | (dal C++11) | |
Unblocks all threads currently waiting for *this.
Indice |
[modifica]Parametri
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Original:
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[modifica]Valore di ritorno
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Original:
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[modifica]Eccezioni
[modifica]Esempio
#include <iostream>#include <condition_variable>#include <thread>#include <chrono> std::condition_variable_any cv;std::mutex cv_m;int i =0; void waits(){std::unique_lock<std::mutex> lk(cv_m);std::cerr<<"Waiting... \n"; cv.wait(lk, [](){return i ==1;});std::cerr<<"...finished waiting. i == 1\n";} void signals(){std::this_thread::sleep_for(std::chrono::seconds(1));std::cerr<<"Notifying...\n"; cv.notify_all();std::this_thread::sleep_for(std::chrono::seconds(1)); i =1;std::cerr<<"Notifying again...\n"; cv.notify_all();} int main(){std::thread t1(waits), t2(waits), t3(waits), t4(signals); t1.join(); t2.join(); t3.join(); t4.join();}
Output:
Waiting... Waiting... Waiting... Notifying... Notifying again... ...finished waiting. i == 1 ...finished waiting. i == 1 ...finished waiting. i == 1
[modifica]Vedi anche
segnala un thread in attesa Original: notifies one waiting thread The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico) | |
