void RaftConsensus::handleAppendEntriesResponse(const AppendEntriesResponse& resp, const grpc::Status& status) {
if (!status.ok() && status.error_code() != grpc::StatusCode::CANCELLED) {
std::cerr << "AppendEntries RPC failed: " << status.error_message() << std::endl;
return;
}
std::lock_guard<std::mutex> lock(mu_);
//TODO
}
void RaftConsensus::handleInstallSnapShotResponse(const InstallSnapShotResponse& resp, const grpc::Status& status) {
if (!status.ok() && status.error_code() != grpc::StatusCode::CANCELLED) {
std::cerr << "InstallSnapShot RCP failed: " << status.error_message() << std::endl;
return;
}
std::lock_guard<std::mutex> lock(mu_);
}
grpc::Status implement_status(Authorize &&authorize, F &&f) {
try {
const grpc::Status auth = authorize();
if (!auth.ok()) return auth;
} catch (std::exception &e) {
return grpc::Status(grpc::UNKNOWN, "Unable to authorize");
} catch (...) {
return grpc::Status(grpc::UNKNOWN, "Unable to authorize");
}
try {
return f();
} catch (std::exception &e) {
return grpc::Status(grpc::UNKNOWN, e.what());
} catch (...) {
return grpc::Status(grpc::UNKNOWN, "Unknown");
}
}
// src_term: 本地发起投票请求时当时本地的term
void RaftConsensus::handleVoteResponse(uint64_t src_term, const VoteResponse& resp, const grpc::Status& status) {
if (!status.ok() && status.error_code() != grpc::StatusCode::CANCELLED) {
std::cerr << "RequestVote RPC failed: " << status.error_message() << std::endl;
return;
}
std::lock_guard<std::mutex> lock(mu_);
if (src_term != term_) {
std::cout << "Mismatched term in VoteResponse:" << src_term <<
", cur:" << term_ << std::endl;
return;
}
else if (StateCandidate == state_) {
if (resp.votegranted()) {
++votes_;
if (votes_ >= majority_)
becomeLeader();
}
}
//TODO
}