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Propagate the upstream pool's diff to clients as soon as it has dropped if it's below their current setting

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This commit is contained in:
Con Kolivas 2014-05-19 00:03:33 +10:00
parent 00364f6d28
commit 14a8430265
1 changed files with 19 additions and 1 deletions
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20
src/stratifier.c
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@ -541,10 +541,13 @@ static void update_notify(ckpool_t *ckp)
stratum_broadcast_update(new_block | clean);
}
static void stratum_send_diff(stratum_instance_t *client);
static void update_diff(ckpool_t *ckp)
{
stratum_instance_t *client;
double old_diff, diff;
json_t *val;
double diff;
char *buf;
buf = send_recv_proc(ckp->generator, "getdiff");
@ -560,8 +563,23 @@ static void update_diff(ckpool_t *ckp)
json_decref(val);
ck_wlock(&workbase_lock);
old_diff = proxy_base.diff;
current_workbase->diff = proxy_base.diff = diff;
ck_wunlock(&workbase_lock);
if (old_diff < diff)
return;
/* If the diff has dropped, iterated over all the clients and check
* they're at or below the new diff, and update it if not. */
ck_rlock(&instance_lock);
for (client = stratum_instances; client != NULL; client = client->hh.next) {
if (client->diff > diff) {
client->diff = diff;
stratum_send_diff(client);
}
}
ck_runlock(&instance_lock);
}
/* Enter with instance_lock held */