Store all notifies in the generator in the parent proxy list and extract the subproxy details from share submission to submit upstream to the right connection

src/generator.c

@@ -770,6 +770,7 @@ out:
 static bool parse_notify(proxy_instance_t *proxi, json_t *val)
 {
 	const char *prev_hash, *bbversion, *nbit, *ntime;
+	proxy_instance_t *proxy = proxi->proxy;
 	char *job_id, *coinbase1, *coinbase2;
 	gdata_t *gdata = proxi->ckp->data;
 	bool clean, ret = false;
@@ -830,11 +831,13 @@ static bool parse_notify(proxy_instance_t *proxi, json_t *val)
 	ret = true;
 	ni->notify_time = time(NULL);
 
-	mutex_lock(&proxi->notify_lock);
+	/* Add the notify instance to the parent proxy list, not the subproxy */
+	mutex_lock(&proxy->notify_lock);
 	ni->id = gdata->proxy_notify_id++;
-	HASH_ADD_INT(proxi->notify_instances, id, ni);
+	HASH_ADD_INT(proxy->notify_instances, id, ni);
+	/* Now set the subproxy's current notify to this */
 	proxi->current_notify = ni;
-	mutex_unlock(&proxi->notify_lock);
+	mutex_unlock(&proxy->notify_lock);
 
 out:
 	return ret;
@@ -973,15 +976,16 @@ out:
 
 static void send_diff(ckpool_t *ckp, proxy_instance_t *proxi)
 {
+	proxy_instance_t *proxy = proxi->proxy;
 	json_t *json_msg;
 	char *msg, *buf;
 
 	/* Master proxy, we don't use this for work */
-	if (proxi == proxi->proxy)
+	if (proxi == proxy)
 		return;
 
 	JSON_CPACK(json_msg, "{sisisf}",
-		   "proxy", proxi->proxy->id,
+		   "proxy", proxy->id,
 		   "subproxy", proxi->id,
 		   "diff", proxi->diff);
 	msg = json_dumps(json_msg, JSON_NO_UTF8);
@@ -994,21 +998,22 @@ static void send_diff(ckpool_t *ckp, proxy_instance_t *proxi)
 
 static void send_notify(ckpool_t *ckp, proxy_instance_t *proxi)
 {
+	proxy_instance_t *proxy = proxi->proxy;
 	json_t *json_msg, *merkle_arr;
 	notify_instance_t *ni;
 	char *msg, *buf;
 	int i;
 
 	/* Master proxy, we don't use this for work */
-	if (proxi == proxi->proxy)
+	if (proxi == proxy)
 		return;
 
 	merkle_arr = json_array();
 
-	mutex_lock(&proxi->notify_lock);
+	mutex_lock(&proxy->notify_lock);
 	ni = proxi->current_notify;
 	if (unlikely(!ni)) {
-		mutex_unlock(&proxi->notify_lock);
+		mutex_unlock(&proxy->notify_lock);
 		LOGNOTICE("Proxi %d not ready to send notify", proxi->id);
 		return;
 	}
@@ -1016,13 +1021,13 @@ static void send_notify(ckpool_t *ckp, proxy_instance_t *proxi)
 		json_array_append_new(merkle_arr, json_string(&ni->merklehash[i][0]));
 	/* Use our own jobid instead of the server's one for easy lookup */
 	JSON_CPACK(json_msg, "{sisisisssisssssosssssssb}",
-			     "proxy", proxi->proxy->id, "subproxy", proxi->id,
+			     "proxy", proxy->id, "subproxy", proxi->id,
 			     "jobid", ni->id, "prevhash", ni->prevhash, "coinb1len", ni->coinb1len,
 			     "coinbase1", ni->coinbase1, "coinbase2", ni->coinbase2,
 			     "merklehash", merkle_arr, "bbversion", ni->bbversion,
 			     "nbit", ni->nbit, "ntime", ni->ntime,
 			     "clean", ni->clean);
-	mutex_unlock(&proxi->notify_lock);
+	mutex_unlock(&proxy->notify_lock);
 
 	msg = json_dumps(json_msg, JSON_NO_UTF8);
 	json_decref(json_msg);
@@ -1030,6 +1035,10 @@ static void send_notify(ckpool_t *ckp, proxy_instance_t *proxi)
 	free(msg);
 	send_proc(ckp->stratifier, buf);
 	free(buf);
+
+	/* Send diff now as stratifier will not accept diff till it has a
+	 * valid workbase */
+	send_diff(ckp, proxi);
 }
 
 static bool parse_method(ckpool_t *ckp, proxy_instance_t *proxi, const char *msg)
@@ -1302,59 +1311,77 @@ out:
 	return ret;
 }
 
-/* For processing and sending shares */
+static proxy_instance_t *subproxy_by_id(proxy_instance_t *proxy, const int id)
+{
+	proxy_instance_t *subproxy;
+
+	mutex_lock(&proxy->proxy_lock);
+	HASH_FIND_INT(proxy->subproxies, &id, subproxy);
+	mutex_unlock(&proxy->proxy_lock);
+
+	return subproxy;
+}
+
+/* For processing and sending shares. proxy refers to parent proxy here */
 static void *proxy_send(void *arg)
 {
-	proxy_instance_t *proxi = (proxy_instance_t *)arg;
-	connsock_t *cs = proxi->cs;
+	proxy_instance_t *proxy = (proxy_instance_t *)arg;
+	connsock_t *cs = proxy->cs;
 
 	rename_proc("proxysend");
 
 	while (42) {
+		proxy_instance_t *subproxy;
 		notify_instance_t *ni;
 		stratum_msg_t *msg;
 		char *jobid = NULL;
 		bool ret = true;
+		int subid = 0;
 		json_t *val;
 		uint32_t id;
 
-		mutex_lock(&proxi->psend_lock);
-		if (!proxi->psends)
-			pthread_cond_wait(&proxi->psend_cond, &proxi->psend_lock);
-		msg = proxi->psends;
+		mutex_lock(&proxy->psend_lock);
+		if (!proxy->psends)
+			pthread_cond_wait(&proxy->psend_cond, &proxy->psend_lock);
+		msg = proxy->psends;
 		if (likely(msg))
-			DL_DELETE(proxi->psends, msg);
-		mutex_unlock(&proxi->psend_lock);
+			DL_DELETE(proxy->psends, msg);
+		mutex_unlock(&proxy->psend_lock);
 
 		if (unlikely(!msg))
 			continue;
 
+		json_get_int(&subid, msg->json_msg, "subproxy");
 		json_uintcpy(&id, msg->json_msg, "jobid");
 
-		mutex_lock(&proxi->notify_lock);
-		HASH_FIND_INT(proxi->notify_instances, &id, ni);
+		mutex_lock(&proxy->notify_lock);
+		HASH_FIND_INT(proxy->notify_instances, &id, ni);
 		if (ni)
 			jobid = strdup(ni->jobid);
-		mutex_unlock(&proxi->notify_lock);
+		mutex_unlock(&proxy->notify_lock);
+
+		subproxy = subproxy_by_id(proxy, subid);
 
-		if (jobid) {
-			JSON_CPACK(val, "{s[ssooo]soss}", "params", proxi->auth, jobid,
+		if (jobid && subproxy) {
+			cs = subproxy->cs;
+			JSON_CPACK(val, "{s[ssooo]soss}", "params", proxy->auth, jobid,
 					json_object_dup(msg->json_msg, "nonce2"),
 					json_object_dup(msg->json_msg, "ntime"),
 					json_object_dup(msg->json_msg, "nonce"),
 					"id", json_object_dup(msg->json_msg, "id"),
 					"method", "mining.submit");
-			free(jobid);
 			ret = send_json_msg(cs, val);
 			json_decref(val);
-		} else
+		} else {
 			LOGNOTICE("Proxy %d:%s failed to find matching jobid in proxysend",
-				  proxi->id, proxi->si->url);
+				  proxy->id, proxy->si->url);
+		}
+		free(jobid);
 		json_decref(msg->json_msg);
 		free(msg);
-		if (!ret && cs->fd > 0) {
+		if (!ret && subproxy && cs->fd > 0) {
 			LOGWARNING("Proxy %d:%s failed to send msg in proxy_send, dropping to reconnect",
-				   proxi->id, proxi->si->url);
+				   proxy->id, proxy->si->url);
 			Close(cs->fd);
 		}
 	}