Article View: pl.comp.lang.c
Article #309618Re: Szukam przykładu thread_pool
From: Borneq
Date: Sun, 14 Jan 2018 19:44
Date: Sun, 14 Jan 2018 19:44
51 lines
1913 bytes
1913 bytes
Biorę implementację z https://github.com/progschj/ThreadPool
wpisuje do puli za pomocą emplace_back
potem odpytuję:
for (auto &&result : results)
std::cout << result.get() << std::endl;
ALE to ma wadę: jeśli pierwszy result trwa najdłużej, to czeka na niego,
potem szybko wypluwa wyniki dalsze:521. A ja bym chciał od razu dostawać
125.
#include <iostream>
#include "ThreadPool.h" //https://github.com/progschj/ThreadPool
int main()
{
ThreadPool pool(8);
std::vector<std::future<int>> results;
results.emplace_back(
pool.enqueue([]
{
std::this_thread::sleep_for(std::chrono::seconds(5));
return 5;
})
);
results.emplace_back(
pool.enqueue([]
{
std::this_thread::sleep_for(std::chrono::seconds(2));
return 2;
})
);
results.emplace_back(
pool.enqueue([]
{
std::this_thread::sleep_for(std::chrono::seconds(1));
return 1;
})
);
for (auto &&result : results)
std::cout << result.get() << std::endl;
while(true);
return 0;
}
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Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.icm.edu.pl!newsfeed2.atman.pl!newsfeed.atman.pl!.POSTED!not-for-mail From: Borneq <borneq@antyspam.hidden.pl> Newsgroups: pl.comp.lang.c Subject: Re: Szukam przykładu thread_pool Date: Sun, 14 Jan 2018 20:44:06 +0100 Organization: ATMAN - ATM S.A. Lines: 51 Message-ID: <p3gbu6$nqa$1@node2.news.atman.pl> References: <p3d0dt$k1h$1@node2.news.atman.pl> NNTP-Posting-Host: public-gprs352921.centertel.pl Mime-Version: 1.0 X-Trace: node2.news.atman.pl 1515959046 24394 37.47.9.218 (14 Jan 2018 19:44:06 GMT) X-Complaints-To: usenet@atman.pl NNTP-Posting-Date: Sun, 14 Jan 2018 19:44:06 +0000 (UTC) User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 In-Reply-To: <p3d0dt$k1h$1@node2.news.atman.pl> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit