@ -19,21 +19,12 @@
DEV_FAST_GOSSIP ( ( seeker ) - > daemon - > rstate - > dev_fast_gossip , 5 , 60 )
enum seeker_state {
/* First initialized, no peers. */
STARTING_UP_NEED_PEER ,
/* Still streaming gossip from single peer. */
STARTING_UP_FIRSTPEER ,
/* Probing scids: need peer to check startup really finished. */
PROBING_SCIDS_NEED_PEER ,
STARTING_UP ,
/* Probing: checking our startup really is finished. */
PROBING_SCIDS ,
/* Probing: need peer to check that we have node_announcements. */
PROBING_NANNOUNCES_NEED_PEER ,
/* Probing: check that we have node_announcements. */
PROBING_NANNOUNCES ,
@ -110,11 +101,7 @@ struct seeker {
/* Mutual recursion */
static void seeker_check ( struct seeker * seeker ) ;
/* If we think we might be missing something, call with true. If we
* think we ' re caught up , call with false . */
static void probe_random_scids ( struct seeker * seeker ,
bool suspect_something_wrong ) ;
static void probe_some_random_scids ( struct seeker * seeker ) ;
static void begin_check_timer ( struct seeker * seeker )
{
@ -153,7 +140,8 @@ struct seeker *new_seeker(struct daemon *daemon, u32 timestamp)
scid_map_init ( & seeker - > unknown_scids ) ;
stale_scid_map_init ( & seeker - > stale_scids ) ;
seeker - > last_gossip_timestamp = timestamp ;
set_state ( seeker , STARTING_UP_NEED_PEER ) ;
seeker - > random_peer_softref = NULL ;
set_state ( seeker , STARTING_UP ) ;
begin_check_timer ( seeker ) ;
memleak_add_helper ( seeker , memleak_help_seeker ) ;
return seeker ;
@ -283,7 +271,7 @@ static void scid_query_done(struct peer *peer, bool complete)
/* Peer completed! OK, start random scid probe in case we're
* still missing gossip . */
probe_random_scids ( seeker , false ) ;
probe_some_ random_scids ( seeker ) ;
}
/* Returns true if there were scids to seek. */
@ -372,26 +360,6 @@ static bool seek_any_stale_scids(struct seeker *seeker)
return true ;
}
static void check_unknown_scid_query ( struct seeker * seeker )
{
struct peer * peer = seeker - > random_peer_softref ;
/* Did peer die? */
if ( ! peer ) {
probe_random_scids ( seeker , true ) ;
return ;
}
if ( ! peer_made_progress ( seeker ) ) {
status_unusual ( " Bad gossip: peer %s has only moved gossip %zu->%zu for scid probe, hanging up on it " ,
type_to_string ( tmpctx , struct node_id , & peer - > id ) ,
seeker - > prev_gossip_count , peer - > gossip_counter ) ;
tal_free ( peer ) ;
probe_random_scids ( seeker , true ) ;
}
}
/* Returns true and sets first_blocknum and number_of_blocks if
* there ' s more to find . */
static bool next_block_range ( struct seeker * seeker ,
@ -533,7 +501,6 @@ static void nodeannounce_query_done(struct peer *peer, bool complete)
return ;
}
set_state ( seeker , PROBING_NANNOUNCES_NEED_PEER ) ;
peer_gossip_probe_nannounces ( seeker ) ;
}
@ -646,7 +613,7 @@ static void process_scid_probe(struct peer *peer,
}
/* Channel probe finished, try asking for 32 unannounced nodes. */
set_state ( seeker , PROBING_NANNOUNCES_NEED_PEER ) ;
set_state ( seeker , PROBING_NANNOUNCES ) ;
seeker - > nannounce_offset = 0 ;
if ( ! get_unannounced_nodes ( seeker , seeker - > daemon - > rstate ,
@ -680,13 +647,8 @@ static void peer_gossip_probe_scids(struct seeker *seeker)
set_state ( seeker , PROBING_SCIDS ) ;
}
static void probe_random_scids ( struct seeker * seeker ,
bool suspect_something_wrong )
static void probe_random_scids ( struct seeker * seeker , size_t num_blocks )
{
/* We usually get a channel per block, so this covers a fair
bit of ground */
size_t num_blocks = suspect_something_wrong ? 1008 : 64 ;
if ( seeker - > daemon - > current_blockheight < num_blocks ) {
seeker - > scid_probe_start = 0 ;
seeker - > scid_probe_end = seeker - > daemon - > current_blockheight ;
@ -698,12 +660,23 @@ static void probe_random_scids(struct seeker *seeker,
= seeker - > scid_probe_start + num_blocks - 1 ;
}
set_state ( seeker , PROBING_SCIDS_NEED_PEER ) ;
set_state ( seeker , PROBING_SCIDS ) ;
seeker - > nannounce_scids = NULL ;
seeker - > nannounce_offset = 0 ;
peer_gossip_probe_scids ( seeker ) ;
}
/* We usually get a channel per block, so these cover a fair bit of ground */
static void probe_some_random_scids ( struct seeker * seeker )
{
return probe_random_scids ( seeker , 64 ) ;
}
static void probe_many_random_scids ( struct seeker * seeker )
{
return probe_random_scids ( seeker , 1008 ) ;
}
static void check_firstpeer ( struct seeker * seeker )
{
struct chan * c ;
@ -712,12 +685,10 @@ static void check_firstpeer(struct seeker *seeker)
/* It might have died, pick another. */
if ( ! peer ) {
status_debug ( " seeker: startup peer died, re-choosing " ) ;
peer = random_peer ( seeker - > daemon , peer_has_gossip_queries ) ;
/* No peer? Wait for a new one to join. */
if ( ! peer ) {
status_debug ( " seeker: no peers, waiting " ) ;
set_state ( seeker , STARTING_UP_NEED_PEER ) ;
return ;
}
@ -748,33 +719,18 @@ static void check_firstpeer(struct seeker *seeker)
seeker - > scid_probe_start = 0 ;
}
seeker - > scid_probe_end = seeker - > daemon - > current_blockheight ;
set_state ( seeker , PROBING_SCIDS_NEED_PEER ) ;
set_state ( seeker , PROBING_SCIDS ) ;
peer_gossip_probe_scids ( seeker ) ;
}
static void check_scid_probing ( struct seeker * seeker )
static void check_probe ( struct seeker * seeker ,
void ( * restart ) ( struct seeker * seeker ) )
{
/* FIXME: Time them out of they don't respond to gossip */
struct peer * peer = seeker - > random_peer_softref ;
/* It might have died, pick another. */
if ( ! peer ) {
status_debug ( " seeker: scid probing peer died, re-choosing " ) ;
set_state ( seeker , PROBING_SCIDS_NEED_PEER ) ;
peer_gossip_probe_scids ( seeker ) ;
return ;
}
}
static void check_nannounce_probing ( struct seeker * seeker )
{
struct peer * peer = seeker - > random_peer_softref ;
/* It might have died, pick another. */
if ( ! peer ) {
status_debug ( " seeker: nannounce probing peer died, re-choosing " ) ;
set_state ( seeker , PROBING_NANNOUNCES_NEED_PEER ) ;
peer_gossip_probe_nannounces ( seeker ) ;
restart ( seeker ) ;
return ;
}
@ -782,61 +738,31 @@ static void check_nannounce_probing(struct seeker *seeker)
if ( peer_made_progress ( seeker ) )
return ;
status_unusual ( " Peer %s has only moved gossip %zu->%zu for nannounce probe, hanging up on it " ,
type_to_string ( tmpctx , struct node_id , & peer - > id ) ,
seeker - > prev_gossip_count , peer - > gossip_counter ) ;
status_debug ( " Peer %s has only moved gossip %zu->%zu for probe, hanging up on it " ,
type_to_string ( tmpctx , struct node_id , & peer - > id ) ,
seeker - > prev_gossip_count , peer - > gossip_counter ) ;
tal_free ( peer ) ;
set_state ( seeker , PROBING_NANNOUNCES_NEED_PEER ) ;
peer_gossip_probe_nannounces ( seeker ) ;
}
static void check_stale_scid_query ( struct seeker * seeker )
{
struct peer * peer = seeker - > random_peer_softref ;
/* Did peer die? */
if ( ! peer ) {
probe_random_scids ( seeker , true ) ;
return ;
}
if ( ! peer_made_progress ( seeker ) ) {
status_unusual ( " Bad gossip: peer %s has only moved gossip %zu->%zu for scid stale probe, hanging up on it " ,
type_to_string ( tmpctx , struct node_id , & peer - > id ) ,
seeker - > prev_gossip_count , peer - > gossip_counter ) ;
tal_free ( peer ) ;
probe_random_scids ( seeker , true ) ;
}
restart ( seeker ) ;
}
/* Periodic timer to see how our gossip is going. */
static void seeker_check ( struct seeker * seeker )
{
switch ( seeker - > state ) {
case STARTING_UP_NEED_PEER :
break ;
case STARTING_UP_FIRSTPEER :
case STARTING_UP :
check_firstpeer ( seeker ) ;
break ;
case PROBING_SCIDS_NEED_PEER :
peer_gossip_probe_scids ( seeker ) ;
break ;
case PROBING_SCIDS :
check_scid_probing ( seeker ) ;
check_probe ( seeker , peer_gossip_probe_scids ) ;
break ;
case ASKING_FOR_UNKNOWN_SCIDS :
check_unknown_scid_query ( seeker ) ;
check_probe ( seeker , probe_many_random_scids ) ;
break ;
case ASKING_FOR_STALE_SCIDS :
check_stale_scid_query ( seeker ) ;
break ;
case PROBING_NANNOUNCES_NEED_PEER :
peer_gossip_probe_nannounces ( seeker ) ;
check_probe ( seeker , probe_some_random_scids ) ;
break ;
case PROBING_NANNOUNCES :
check_nannounce_probing ( seeker ) ;
check_probe ( seeker , peer_gossip_probe_nannounces ) ;
break ;
case NORMAL :
if ( ! seek_any_unknown_scids ( seeker ) )
@ -850,37 +776,39 @@ static void seeker_check(struct seeker *seeker)
/* We get this when we have a new peer. */
void seeker_setup_peer_gossip ( struct seeker * seeker , struct peer * peer )
{
bool have_probing_peer = seeker - > random_peer_softref ! = NULL ;
/* Can't do anything useful with these peers. */
if ( ! peer - > gossip_queries_feature )
return ;
switch ( seeker - > state ) {
case STARTING_UP_NEED_PEER :
peer_gossip_startup ( seeker , peer ) ;
set_state ( seeker , STARTING_UP_FIRSTPEER ) ;
return ;
case STARTING_UP_FIRSTPEER :
case STARTING_UP :
if ( ! have_probing_peer )
peer_gossip_startup ( seeker , peer ) ;
/* Waiting for seeker_check to release us */
return ;
/* In these states, we set up peers to stream gossip normally */
case PROBING_SCIDS_NEED_PEER :
peer_gossip_probe_scids ( seeker ) ;
normal_gossip_start ( seeker , peer ) ;
return ;
case PROBING_NANNOUNCES_NEED_PEER :
peer_gossip_probe_nannounces ( seeker ) ;
normal_gossip_start ( seeker , peer ) ;
return ;
case PROBING_SCIDS :
if ( ! have_probing_peer )
peer_gossip_probe_scids ( seeker ) ;
goto start_them_gossiping ;
case PROBING_NANNOUNCES :
if ( ! have_probing_peer )
peer_gossip_probe_nannounces ( seeker ) ;
goto start_them_gossiping ;
case NORMAL :
case ASKING_FOR_UNKNOWN_SCIDS :
case ASKING_FOR_STALE_SCIDS :
normal_gossip_start ( seeker , peer ) ;
return ;
goto start_them_gossiping ;
}
abort ( ) ;
start_them_gossiping :
normal_gossip_start ( seeker , peer ) ;
}
bool remove_unknown_scid ( struct seeker * seeker ,