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threadpool: guard against exceptions in jobs, and armour plating

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Those would, if uncaught, exit run and leave the waiter to wait
indefinitely for the number of active jobs to reach 0
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moneromooo-monero 2020-08-12 22:13:29 +00:00
parent 5d850dde99
commit 6a37da837e
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8 changed files with 72 additions and 60 deletions
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4
src/common/dns_utils.cpp
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@ -521,14 +521,14 @@ bool load_txt_records_from_dns(std::vector<std::string> &good_records, const std
// send all requests in parallel
std::deque<bool> avail(dns_urls.size(), false), valid(dns_urls.size(), false);
tools::threadpool& tpool = tools::threadpool::getInstance();
tools::threadpool::waiter waiter;
tools::threadpool::waiter waiter(tpool);
for (size_t n = 0; n < dns_urls.size(); ++n)
{
tpool.submit(&waiter,[n, dns_urls, &records, &avail, &valid](){
records[n] = tools::DNSResolver::instance().get_txt_record(dns_urls[n], avail[n], valid[n]);
});
}
waiter.wait(&tpool);
waiter.wait();
size_t cur_index = first_index;
do