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Retry on EINTR in blocking zmq calls

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This commit is contained in:
Alexey Rybalchenko
2020-08-28 10:11:56 +02:00
parent 1f0c94f898
commit 690e8a0370
6 changed files with 59 additions and 45 deletions
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19
fairmq/shmem/Poller.h
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@@ -127,13 +127,20 @@ class Poller final : public fair::mq::Poller
void Poll(const int timeout) override
{
if (zmq_poll(fItems, fNumItems, timeout) < 0) {
if (errno == ETERM) {
LOG(debug) << "polling exited, reason: " << zmq_strerror(errno);
} else {
LOG(error) << "polling failed, reason: " << zmq_strerror(errno);
throw fair::mq::PollerError(fair::mq::tools::ToString("Polling failed, reason: ", zmq_strerror(errno)));
while (true) {
if (zmq_poll(fItems, fNumItems, timeout) < 0) {
if (errno == ETERM) {
LOG(debug) << "polling exited, reason: " << zmq_strerror(errno);
return;
} else if (errno == EINTR) {
LOG(debug) << "polling interrupted by system call";
continue;
} else {
LOG(error) << "polling failed, reason: " << zmq_strerror(errno);
throw fair::mq::PollerError(fair::mq::tools::ToString("Polling failed, reason: ", zmq_strerror(errno)));
}
}
break;
}
}