Commit eb9b3e06 authored by Willem Thiart's avatar Willem Thiart
Browse files

Fixed candidate/leader step down via request vote

parent 903b8eb0
......@@ -353,6 +353,9 @@ int raft_recv_requestvote(raft_server_t* me_, int node, msg_requestvote_t* vr,
{
raft_server_private_t* me = (raft_server_private_t*)me_;
if (raft_get_current_term(me_) < vr->term)
raft_become_follower(me_);
if (__should_grant_vote(me, vr))
{
/* It shouldn't be possible for a leader or candidate to grant a vote
......
......@@ -452,6 +452,26 @@ void TestRaft_server_recv_requestvote_reply_true_if_term_greater_than_or_equal_t
CuAssertTrue(tc, 1 == rvr.vote_granted);
}
void TestRaft_server_recv_requestvote_candidate_step_down_if_term_is_higher_than_current_term(
CuTest * tc
)
{
void *r = raft_new();
raft_add_peer(r, (void*)1, 1);
raft_add_peer(r, (void*)2, 0);
raft_become_candidate(r);
raft_set_current_term(r, 1);
/* current term is less than term */
msg_requestvote_t rv;
memset(&rv, 0, sizeof(msg_requestvote_t));
rv.term = 2;
rv.last_log_idx = 1;
msg_requestvote_response_t rvr;
raft_recv_requestvote(r, 1, &rv, &rvr);
CuAssertTrue(tc, 1 == raft_is_follower(r));
}
/* If votedFor is null or candidateId, and candidate's log is at
* least as up-to-date as local log, grant vote (5.2, 5.4) */
void TestRaft_server_dont_grant_vote_if_we_didnt_vote_for_this_candidate(
......
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