Method runOnExternalClients

fdbclient/MultiVersionTransaction.actor.cpp:2184–2214

runOnFailedClients should be used cautiously. Some failed clients may not have successfully loaded all symbols.

// runOnFailedClients should be used cautiously. Some failed clients may not have successfully loaded all symbols.
void MultiVersionApi::runOnExternalClients(int threadIdx,
                                           std::function<void(Reference<ClientInfo>)> func,
                                           bool runOnFailedClients) {
	bool newFailure = false;

	auto c = externalClients.begin();
	while (c != externalClients.end()) {
		auto client = c->second[threadIdx];
		try {
			if (!client->failed || runOnFailedClients) { // TODO: Should we ignore some failures?
				func(client);
			}
		} catch (Error& e) {
			if (e.code() == error_code_external_client_already_loaded) {
				TraceEvent(SevInfo, "ExternalClientAlreadyLoaded").error(e).detail("LibPath", c->first);
				c = externalClients.erase(c);
				continue;
			} else {
				TraceEvent(SevWarnAlways, "ExternalClientFailure").error(e).detail("LibPath", c->first);
				client->failed = true;
				newFailure = true;
			}
		}

		++c;
	}

	if (newFailure) {
		updateSupportedVersions();
	}
}

Reference<ClientInfo> MultiVersionApi::getLocalClient() {
	return localClient;