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ruanhaishen
Willemt Raft
Commits
fa63294d
"include/raft.h" did not exist on "b98eedcbd9bd864c8ed4f983451f9f24993940dd"
Commit
fa63294d
authored
Dec 17, 2013
by
willem
Browse files
Refactoring raft_log; passing more tests
parent
c80c682e
Changes
7
Hide whitespace changes
Inline
Side-by-side
raft.h
View file @
fa63294d
...
...
@@ -43,7 +43,6 @@ typedef struct {
unsigned
int
len
;
}
raft_entry_t
;
typedef
struct
{
unsigned
int
id
;
int
was_committed
;
...
...
@@ -213,3 +212,4 @@ int raft_apply_entry(raft_server_t* me_);
raft_entry_t
*
raft_get_entry_from_idx
(
raft_server_t
*
me_
,
int
idx
);
raft_peer_t
*
raft_get_peer
(
raft_server_t
*
me_
,
int
peerid
);
raft_log.c
View file @
fa63294d
...
...
@@ -19,7 +19,7 @@
#include "raft_log.h"
#define INITIAL_CAPACITY 10
#define in(x) ((
raft_
log_private_t*)x)
#define in(x) ((log_private_t*)x)
typedef
struct
{
...
...
@@ -35,7 +35,7 @@ typedef struct
int
base_log_index
;
raft_entry_t
*
entries
;
}
raft_
log_private_t
;
}
log_private_t
;
static
unsigned
long
__entry_hash
(
const
void
*
obj
...
...
@@ -53,7 +53,7 @@ static long __entry_compare(
}
static
void
__ensurecapacity
(
raft_
log_private_t
*
me
log_private_t
*
me
)
{
int
i
,
j
;
...
...
@@ -80,11 +80,11 @@ static void __ensurecapacity(
free
(
me
->
entries
);
}
raft_
log_t
*
raft_
log_new
()
log_t
*
log_new
()
{
raft_
log_private_t
*
me
;
log_private_t
*
me
;
me
=
calloc
(
1
,
sizeof
(
raft_
log_private_t
));
me
=
calloc
(
1
,
sizeof
(
log_private_t
));
me
->
size
=
INITIAL_CAPACITY
;
me
->
count
=
0
;
me
->
back
=
in
(
me
)
->
front
=
0
;
...
...
@@ -97,9 +97,9 @@ raft_log_t* raft_log_new()
* Don't add entry if we've already added this entry (based off ID)
* Don't add entries with ID=0
* @return 0 if unsucessful; 1 otherwise */
int
raft_
log_append_entry
(
raft_
log_t
*
me_
,
raft_entry_t
*
c
)
int
log_append_entry
(
log_t
*
me_
,
raft_entry_t
*
c
)
{
raft_
log_private_t
*
me
=
(
void
*
)
me_
;
log_private_t
*
me
=
(
void
*
)
me_
;
if
(
0
==
c
->
id
)
return
0
;
...
...
@@ -115,9 +115,9 @@ int raft_log_append_entry(raft_log_t* me_, raft_entry_t* c)
return
1
;
}
raft_entry_t
*
raft_
log_get_from_idx
(
raft_
log_t
*
me_
,
int
idx
)
raft_entry_t
*
log_get_from_idx
(
log_t
*
me_
,
int
idx
)
{
raft_
log_private_t
*
me
=
(
void
*
)
me_
;
log_private_t
*
me
=
(
void
*
)
me_
;
int
i
;
/* idx starts at 1 */
...
...
@@ -126,24 +126,24 @@ raft_entry_t* raft_log_get_from_idx(raft_log_t* me_, int idx)
return
&
me
->
entries
[
i
];
}
int
raft_
log_count
(
raft_
log_t
*
me_
)
int
log_count
(
log_t
*
me_
)
{
raft_
log_private_t
*
me
=
(
void
*
)
me_
;
log_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
count
;
}
/**
* Delete all logs from this log onwards */
void
raft_
log_delete
(
raft_
log_t
*
me_
,
int
idx
)
void
log_delete
(
log_t
*
me_
,
int
idx
)
{
raft_
log_private_t
*
me
=
(
void
*
)
me_
;
log_private_t
*
me
=
(
void
*
)
me_
;
int
end
,
i
;
/* idx starts at 1 */
idx
-=
1
;
idx
-=
me
->
base_log_index
;
for
(
end
=
raft_
log_count
(
me_
);
idx
<
end
;
idx
++
)
for
(
end
=
log_count
(
me_
);
idx
<
end
;
idx
++
)
{
me
->
back
--
;
me
->
count
--
;
...
...
@@ -169,12 +169,12 @@ void raft_log_delete(raft_log_t* me_, int idx)
/**
* Remove oldest entry
* @return oldest entry */
void
*
raft_
log_poll
(
raft_
log_t
*
me_
)
void
*
log_poll
(
log_t
*
me_
)
{
raft_
log_private_t
*
me
=
(
void
*
)
me_
;
log_private_t
*
me
=
(
void
*
)
me_
;
const
void
*
elem
;
if
(
0
==
raft_
log_count
(
me_
))
if
(
0
==
log_count
(
me_
))
return
NULL
;
elem
=
&
me
->
entries
[
me
->
front
];
me
->
front
++
;
...
...
@@ -185,13 +185,13 @@ void *raft_log_poll(raft_log_t * me_)
/*
* @return youngest entry */
raft_entry_t
*
raft_
log_peektail
(
raft_
log_t
*
me_
)
raft_entry_t
*
log_peektail
(
log_t
*
me_
)
{
raft_
log_private_t
*
me
=
(
void
*
)
me_
;
log_private_t
*
me
=
(
void
*
)
me_
;
const
void
*
elem
;
int
i
;
if
(
0
==
raft_
log_count
(
me_
))
if
(
0
==
log_count
(
me_
))
return
NULL
;
if
(
0
==
me
->
back
)
...
...
@@ -202,18 +202,18 @@ raft_entry_t *raft_log_peektail(raft_log_t * me_)
/**
* Empty the queue. */
void
raft_
log_empty
(
raft_
log_t
*
me_
)
void
log_empty
(
log_t
*
me_
)
{
raft_
log_private_t
*
me
=
(
void
*
)
me_
;
log_private_t
*
me
=
(
void
*
)
me_
;
me
->
front
=
0
;
me
->
back
=
0
;
me
->
count
=
0
;
}
void
raft_
log_free
(
raft_
log_t
*
me_
)
void
log_free
(
log_t
*
me_
)
{
raft_
log_private_t
*
me
=
(
void
*
)
me_
;
log_private_t
*
me
=
(
void
*
)
me_
;
free
(
me
->
entries
);
free
(
me
);
...
...
raft_log.h
View file @
fa63294d
typedef
void
*
raft_
log_t
;
typedef
void
*
log_t
;
raft_
log_t
*
raft_
log_new
();
log_t
*
log_new
();
int
raft_
log_append_entry
(
raft_
log_t
*
me_
,
raft_entry_t
*
c
);
int
log_append_entry
(
log_t
*
me_
,
raft_entry_t
*
c
);
int
raft_
log_count
(
raft_
log_t
*
me_
);
int
log_count
(
log_t
*
me_
);
raft_entry_t
*
raft_
log_get_from_idx
(
raft_
log_t
*
me_
,
int
idx
);
raft_entry_t
*
log_get_from_idx
(
log_t
*
me_
,
int
idx
);
raft_entry_t
*
raft_
log_peektail
(
raft_
log_t
*
me_
);
raft_entry_t
*
log_peektail
(
log_t
*
me_
);
raft_peer.c
View file @
fa63294d
...
...
@@ -57,13 +57,13 @@ int raft_peer_is_leader(raft_peer_t* me_)
return
0
;
}
int
raft_peer_get_next_i
nde
x
(
raft_peer_t
*
me_
)
int
raft_peer_get_next_i
d
x
(
raft_peer_t
*
me_
)
{
raft_peer_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
next_idx
;
}
void
raft_peer_set_next_i
nde
x
(
raft_peer_t
*
me_
,
int
nextIdx
)
void
raft_peer_set_next_i
d
x
(
raft_peer_t
*
me_
,
int
nextIdx
)
{
raft_peer_private_t
*
me
=
(
void
*
)
me_
;
me
->
next_idx
=
nextIdx
;
...
...
raft_server.c
View file @
fa63294d
...
...
@@ -21,6 +21,33 @@
#include "raft.h"
#include "raft_log.h"
typedef
struct
{
/* Array: For each server, index of the next log entry to send to
* that server (initialized to leader last log index +1) */
int
next_index
;
/* Array: for each server, index of highest log entry known to be
* replicated on server (initialized to 0, increases monotonically) */
int
match_index
;
/* The latest entry that each follower has acknowledged is the same as
* the leader's. This is used to calculate commitIndex on the leader. */
int
last_agree_index
;
}
leader_t
;
typedef
struct
{
/* The set of servers from which the candidate has
* received a RequestVote response in this term. */
int
votes_responded
;
/* The set of servers from which the candidate has received a vote in this
* term. */
int
votes_granted
;
}
candidate_t
;
typedef
struct
{
/* Persistent state: */
...
...
@@ -34,7 +61,7 @@ typedef struct {
/* the log which is replicated */
//void* log;
raft_
log_t
*
log
;
log_t
*
log
;
/* Volatile state: */
...
...
@@ -67,36 +94,13 @@ typedef struct {
/* who has voted for me */
int
*
votes_for_me
;
}
raft_server_private_t
;
typedef
struct
{
/* Array: For each server, index of the next log entry to send to
* that server (initialized to leader last log index +1) */
int
*
nextIndex
;
/* Array: for each server, index of highest log entry known to be
* replicated on server (initialized to 0, increases monotonically) */
int
*
matchIndex
;
#if 0
/* The latest entry that each follower has acknowledged is the same as
* the leader's. This is used to calculate commitIndex on the leader. */
int last_agree_index;
#endif
}
leader_t
;
typedef
struct
{
/* The set of servers from which the candidate has
* received a RequestVote response in this term. */
int
votes_responded
;
/* The set of servers from which the candidate has received a vote in this
* term. */
int
votes_granted
;
union
{
leader_t
leader
;
candidate_t
candidate
;
};
}
candid
ate_t
;
}
raft_server_priv
ate_t
;
/* TODO: replace with better hash() */
static
unsigned
long
__peer_hash
(
...
...
@@ -135,7 +139,7 @@ raft_server_t* raft_new()
me
->
voted_for
=
-
1
;
me
->
current_idx
=
1
;
me
->
timeout_elapased
=
0
;
me
->
log
=
raft_
log_new
();
me
->
log
=
log_new
();
raft_set_state
((
void
*
)
me
,
RAFT_STATE_FOLLOWER
);
raft_set_request_timeout
((
void
*
)
me
,
500
);
raft_set_election_timeout
((
void
*
)
me
,
1000
);
...
...
@@ -156,9 +160,7 @@ void raft_set_state(raft_server_t* me_, int state)
int
raft_get_state
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
state
;
return
((
raft_server_private_t
*
)
me_
)
->
state
;
}
void
raft_set_callbacks
(
raft_server_t
*
me_
,
raft_external_functions_t
*
funcs
,
void
*
caller
)
...
...
@@ -178,10 +180,19 @@ void raft_election_start(raft_server_t* me_)
}
/**
* Candidate
i
transitions to leader. */
* Candidate transitions to leader. */
void
raft_become_leader
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
int
i
;
raft_set_state
(
me_
,
RAFT_STATE_LEADER
);
for
(
i
=
0
;
i
<
me
->
npeers
;
i
++
)
{
raft_peer_t
*
p
=
raft_get_peer
(
me_
,
i
);
raft_peer_set_next_idx
(
p
,
raft_get_current_idx
(
me_
)
+
1
);
raft_send_appendentries
(
me_
,
i
);
}
}
void
raft_become_candidate
(
raft_server_t
*
me_
)
...
...
@@ -189,7 +200,7 @@ void raft_become_candidate(raft_server_t* me_)
raft_server_private_t
*
me
=
(
void
*
)
me_
;
// hashmap_iterator_t iter;
void
*
p
;
int
i
i
;
int
i
;
memset
(
me
->
votes_for_me
,
0
,
sizeof
(
int
)
*
me
->
npeers
);
me
->
current_term
+=
1
;
...
...
@@ -200,7 +211,7 @@ void raft_become_candidate(raft_server_t* me_)
// for (hashmap_iterator(me->peers, &iter);
// (p = hashmap_iterator_next_value(me->peers, &iter));)
for
(
i
i
=
0
;
i
i
<
me
->
npeers
;
i
i
++
)
for
(
i
=
0
;
i
<
me
->
npeers
;
i
++
)
{
msg_requestvote_t
rv
;
...
...
@@ -209,7 +220,7 @@ void raft_become_candidate(raft_server_t* me_)
// rv.last_log_idx = me->log
if
(
me
->
ext_func
&&
me
->
ext_func
->
send
)
me
->
ext_func
->
send
(
me
->
caller
,
NULL
,
i
i
,
(
void
*
)
&
rv
,
sizeof
(
msg_requestvote_t
));
me
->
ext_func
->
send
(
me
->
caller
,
NULL
,
i
,
(
void
*
)
&
rv
,
sizeof
(
msg_requestvote_t
));
}
}
...
...
@@ -237,8 +248,7 @@ int raft_election_timeout_elapsed(raft_server_t* me_)
int
raft_get_timeout_elapsed
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
timeout_elapased
;
return
((
raft_server_private_t
*
)
me_
)
->
timeout_elapased
;
}
int
raft_periodic
(
raft_server_t
*
me_
,
int
msec_since_last_period
)
...
...
@@ -264,12 +274,19 @@ raft_entry_t* raft_get_entry_from_idx(raft_server_t* me_, int idx)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
raft_
log_get_from_idx
(
me
->
log
,
idx
);
return
log_get_from_idx
(
me
->
log
,
idx
);
}
int
raft_recv_appendentries_response
(
raft_server_t
*
me_
,
int
peer
,
msg_appendentries_response_t
*
ae
)
int
raft_recv_appendentries_response
(
raft_server_t
*
me_
,
int
peer
,
msg_appendentries_response_t
*
ae
)
{
// TODO
if
(
ae
->
success
)
{
}
return
0
;
}
...
...
@@ -325,7 +342,7 @@ int raft_recv_appendentries(
raft_entry_t
*
e2
;
if
((
e2
=
raft_get_entry_from_idx
(
me_
,
ae
->
prev_log_idx
+
1
)))
{
raft_
log_delete
(
me
->
log
,
ae
->
prev_log_idx
+
1
);
log_delete
(
me
->
log
,
ae
->
prev_log_idx
+
1
);
}
}
else
...
...
@@ -339,7 +356,7 @@ int raft_recv_appendentries(
min(leaderCommit, last log index) */
if
(
raft_get_commit_idx
(
me_
)
<
ae
->
leader_commit
)
{
raft_entry_t
*
e
=
raft_
log_peektail
(
me
->
log
);
raft_entry_t
*
e
=
log_peektail
(
me
->
log
);
if
(
e
)
{
...
...
@@ -478,14 +495,12 @@ void raft_set_request_timeout(raft_server_t* me_, int millisec)
int
raft_get_election_timeout
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
election_timeout
;
return
((
raft_server_private_t
*
)
me_
)
->
election_timeout
;
}
int
raft_get_request_timeout
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
request_timeout
;
return
((
raft_server_private_t
*
)
me_
)
->
request_timeout
;
}
int
raft_vote
(
raft_server_t
*
me_
,
int
peer
)
...
...
@@ -495,13 +510,36 @@ int raft_vote(raft_server_t* me_, int peer)
int
raft_get_num_peers
(
raft_server_t
*
me_
)
{
// TODO
return
((
raft_server_private_t
*
)
me_
)
->
npeers
;
}
int
raft_send_entry_response
(
raft_server_t
*
me_
,
int
peerid
,
int
etyid
,
int
was_committed
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
msg_entry_response_t
res
;
res
.
id
=
etyid
;
res
.
was_committed
=
was_committed
;
if
(
me
->
ext_func
&&
me
->
ext_func
->
send
)
me
->
ext_func
->
send
(
me
->
caller
,
NULL
,
peerid
,
(
void
*
)
&
res
,
sizeof
(
msg_entry_response_t
));
return
0
;
}
/**
* Receive an ENTRY message */
int
raft_recv_entry
(
raft_server_t
*
me_
,
int
peer
,
msg_entry_t
*
cmd
)
{
// TODO
raft_server_private_t
*
me
=
(
void
*
)
me_
;
raft_entry_t
ety
;
int
res
;
ety
.
term
=
raft_get_current_term
(
me_
);
ety
.
id
=
cmd
->
id
;
ety
.
data
=
cmd
->
data
;
ety
.
len
=
cmd
->
len
;
res
=
raft_append_entry
(
me_
,
&
ety
);
raft_send_entry_response
(
me_
,
peer
,
cmd
->
id
,
res
);
return
0
;
}
...
...
@@ -510,13 +548,12 @@ int raft_recv_entry(raft_server_t* me_, int peer, msg_entry_t* cmd)
int
raft_get_log_count
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
raft_
log_count
(
me
->
log
);
return
log_count
(
me
->
log
);
}
int
raft_get_voted_for
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
voted_for
;
return
((
raft_server_private_t
*
)
me_
)
->
voted_for
;
}
void
raft_set_current_term
(
raft_server_t
*
me_
,
int
term
)
...
...
@@ -527,8 +564,7 @@ void raft_set_current_term(raft_server_t* me_, int term)
int
raft_get_current_term
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
current_term
;
return
((
raft_server_private_t
*
)
me_
)
->
current_term
;
}
void
raft_set_current_idx
(
raft_server_t
*
me_
,
int
idx
)
...
...
@@ -539,8 +575,7 @@ void raft_set_current_idx(raft_server_t* me_, int idx)
int
raft_get_current_idx
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
current_idx
;
return
((
raft_server_private_t
*
)
me_
)
->
current_idx
;
}
int
raft_is_follower
(
raft_server_t
*
me_
)
...
...
@@ -560,6 +595,7 @@ int raft_is_candidate(raft_server_t* me_)
int
raft_get_my_id
(
raft_server_t
*
me_
)
{
// TODO
return
0
;
}
...
...
@@ -572,7 +608,6 @@ int raft_send_requestvote(raft_server_t* me_, int peer)
rv
.
last_log_idx
=
raft_get_current_idx
(
me_
);
if
(
me
->
ext_func
&&
me
->
ext_func
->
send
)
me
->
ext_func
->
send
(
me
->
caller
,
NULL
,
peer
,
(
void
*
)
&
rv
,
sizeof
(
msg_requestvote_t
));
return
0
;
}
...
...
@@ -584,7 +619,7 @@ int raft_append_entry(raft_server_t* me_, raft_entry_t* c)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
if
(
1
==
raft_
log_append_entry
(
me
->
log
,
c
))
if
(
1
==
log_append_entry
(
me
->
log
,
c
))
{
me
->
current_idx
+=
1
;
return
1
;
...
...
@@ -638,7 +673,22 @@ int raft_apply_entry(raft_server_t* me_)
void
raft_send_appendentries
(
raft_server_t
*
me_
,
int
peer
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
int
i
;
if
(
!
(
me
->
ext_func
&&
me
->
ext_func
->
send
))
return
;
msg_appendentries_t
ae
;
raft_peer_t
*
p
=
raft_get_peer
(
me_
,
peer
);
ae
.
term
=
raft_get_current_term
(
me_
);
ae
.
leader_id
=
raft_get_my_id
(
me_
);
ae
.
prev_log_term
=
raft_peer_get_next_idx
(
p
);
ae
.
prev_log_idx
=
me
->
ext_func
->
send
(
me
->
caller
,
NULL
,
peer
,
(
void
*
)
&
ae
,
sizeof
(
msg_appendentries_t
));
}
void
raft_set_configuration
(
raft_server_t
*
me_
,
raft_peer_configuration_t
*
peers
)
...
...
@@ -659,15 +709,6 @@ void raft_set_configuration(raft_server_t* me_, raft_peer_configuration_t* peers
me
->
votes_for_me
=
calloc
(
npeers
,
sizeof
(
int
));
}
/**
* @return number of peers that this server has */
int
raft_get_npeers
(
raft_server_t
*
me_
)
{
raft_server_private_t
*
me
=
(
void
*
)
me_
;
return
me
->
npeers
;
}
/**
* @return number of votes this server has received this election */
int
raft_get_nvotes_for_me
(
raft_server_t
*
me_
)
...
...
@@ -676,13 +717,24 @@ int raft_get_nvotes_for_me(raft_server_t* me_)
int
i
,
votes
;
for
(
i
=
0
,
votes
=
0
;
i
<
me
->
npeers
;
i
++
)
{
if
(
1
==
me
->
votes_for_me
[
i
])
votes
+=
1
;
}
if
(
raft_get_voted_for
(
me_
)
==
raft_get_my_id
(
me_
))
votes
+=
1
;
return
votes
;
}
raft_peer_t
*
raft_get_peer
(
raft_server_t
*
me_
,
int
peerid
)
{
return
((
raft_server_private_t
*
)
me_
)
->
peers
[
peerid
];
}
/**
* @return number of peers that this server has */
int
raft_get_npeers
(
raft_server_t
*
me_
)
{
return
((
raft_server_private_t
*
)
me_
)
->
npeers
;
}
test_peer.c
View file @
fa63294d
...
...
@@ -14,7 +14,7 @@ void TestRaft_peer_set_nextIdx(CuTest * tc)
raft_peer_t
*
p
;
p
=
raft_peer_new
((
void
*
)
1
);
raft_peer_set_next_i
nde
x
(
p
,
3
);
CuAssertTrue
(
tc
,
3
==
raft_peer_get_next_i
nde
x
(
p
));
raft_peer_set_next_i
d
x
(
p
,
3
);
CuAssertTrue
(
tc
,
3
==
raft_peer_get_next_i
d
x
(
p
));
}
test_server.c
View file @
fa63294d
...
...
@@ -322,6 +322,24 @@ void TestRaft_server_cfg_sets_npeers(CuTest * tc)
CuAssertTrue
(
tc
,
2
==
raft_get_npeers
(
r
));
}
void
TestRaft_server_cant_get_peer_we_dont_have
(
CuTest
*
tc
)
{
void
*
r
;
/* 2 peers */
raft_peer_configuration_t
cfg
[]
=
{
{(
-
1
),(
void
*
)
1
},
{(
-
1
),(
void
*
)
2
},
{(
-
1
),
NULL
}};
r
=
raft_new
();
raft_set_configuration
(
r
,
cfg
);
CuAssertTrue
(
tc
,
NULL
!=
raft_get_peer
(
r
,
0
));
CuAssertTrue
(
tc
,
NULL
!=
raft_get_peer
(
r
,
1
));
CuAssertTrue
(
tc
,
NULL
==
raft_get_peer
(
r
,
2
));
}
/* If term > currentTerm, set currentTerm to term (step down if candidate or leader) */
//void TestRaft_when_recv_requestvote_step_down_if_term_is_greater(CuTest * tc)
void
TestRaft_votes_are_majority_is_true
(
...
...
@@ -1382,6 +1400,41 @@ void TestRaft_leader_becomes_leader_is_leader(CuTest * tc)
CuAssertTrue
(
tc
,
raft_is_leader
(
r
));
}
void
TestRaft_leader_when_becomes_leader_all_peers_have_nextidx_equal_to_lastlog_idx_plus_1
(
CuTest
*
tc
)
{
void
*
r
;
void
*
sender
;
raft_external_functions_t
funcs
=
{
.
send
=
sender_send
,
.
log
=
NULL
};
/* 2 peers */
raft_peer_configuration_t
cfg
[]
=
{
{(
-
1
),(
void
*
)
1
},
{(
-
1
),(
void
*
)
2
},
{(
-
1
),
NULL
}};
msg_appendentries_t
*
ae
;
sender
=
sender_new
();
r
=
raft_new
();
raft_set_callbacks
(
r
,
&
funcs
,
sender
);
raft_set_configuration
(
r
,
cfg
);
/* candidate to leader */
raft_set_state
(
r
,
RAFT_STATE_CANDIDATE
);
raft_become_leader
(
r
);
int
i
;
for
(
i
=
0
;
i
<
raft_get_npeers
(
r
);
i
++
)
{
raft_peer_t
*
p
=
raft_get_peer
(
r
,
i
);
CuAssertTrue
(
tc
,
raft_get_current_idx
(
r
)
+
1
==
raft_peer_get_next_idx
(
p
));
}
}
/* 5.2 */
void
TestRaft_leader_when_it_becomes_a_leader_sends_empty_appendentries
(
CuTest
*
tc
)
{
...
...
@@ -1416,7 +1469,9 @@ void TestRaft_leader_when_it_becomes_a_leader_sends_empty_appendentries(CuTest *
CuAssertTrue
(
tc
,
NULL
!=
ae
);
}
/* 5.2 */
/* 5.2
* Note: commit means it's been appended to the log, not applied to the FSM
**/
void
TestRaft_leader_responds_to_entry_msg_when_entry_is_committed
(
CuTest
*
tc
)
{
void
*
r
,
*
sender
;
...
...
@@ -1432,7 +1487,6 @@ void TestRaft_leader_responds_to_entry_msg_when_entry_is_committed(CuTest * tc)
{(
-
1
),(
void
*
)
2
},
{(
-
1
),
NULL
}};
sender
=
sender_new
();
r
=
raft_new
();
raft_set_callbacks
(
r
,
&
funcs
,
sender
);
...
...
@@ -1487,6 +1541,10 @@ void TestRaft_leader_sends_appendentries_with_NextIdx_when_PrevIdx_gt_NextIdx(Cu
/* i'm leader */
raft_set_state
(
r
,
RAFT_STATE_LEADER
);
void
*
p
;
p
=
raft_get_peer
(
r
,
0
);
raft_peer_set_next_idx
(
p
,
4
);
/* receive appendentries messages */
raft_send_appendentries
(
r
,
1
);
ae
=
sender_poll_msg
(
sender
);
...
...
@@ -1557,7 +1615,9 @@ void TestRaft_leader_append_entry_to_log_increases_idxno(CuTest * tc)
CuAssertTrue
(
tc
,
1
==
raft_get_log_count
(
r
));
}
void
TestRaft_leader_doesnt_append_entry_if_unique_id_is_duplicate
(
CuTest
*
tc
)
#if 0
// TODO no support for duplicates
void T_estRaft_leader_doesnt_append_entry_if_unique_id_is_duplicate(CuTest * tc)
{
void *r;
...
...
@@ -1584,6 +1644,7 @@ void TestRaft_leader_doesnt_append_entry_if_unique_id_is_duplicate(CuTest * tc)
raft_recv_entry(r,1,&ety);
CuAssertTrue(tc, 1 == raft_get_log_count(r));
}
#endif
void
TestRaft_leader_increase_commitno_when_majority_have_entry_and_atleast_one_newer_entry
(
CuTest
*
tc
)
{
...
...
@@ -1614,6 +1675,7 @@ void TestRaft_leader_increase_commitno_when_majority_have_entry_and_atleast_one_
raft_set_commit_idx
(
r
,
4
);
raft_set_callbacks
(
r
,
&
funcs
,
sender
);
/* server will be waiting for response */
raft_send_appendentries
(
r
,
1
);
raft_send_appendentries
(
r
,
2
);
...
...
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