From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp56.i.mail.ru (smtp56.i.mail.ru [217.69.128.36]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dev.tarantool.org (Postfix) with ESMTPS id 16EA64765E2 for ; Wed, 23 Dec 2020 14:59:44 +0300 (MSK) From: Serge Petrenko Date: Wed, 23 Dec 2020 14:59:20 +0300 Message-Id: <5d956009946130bbecf19c4f8bd634f1fa53b0bd.1608724239.git.sergepetrenko@tarantool.org> In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [Tarantool-patches] [PATCH v2 2/6] relay: introduce on_status_update trigger List-Id: Tarantool development patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: v.shpilevoy@tarantool.org, gorcunov@gmail.com Cc: tarantool-patches@dev.tarantool.org The trigger is fired from tx_status_update(), which is the notification for tx that relay's vclock is updated. The trigger will be used to collect synchronous transactions quorum for old leader's transactions. Part of #5435 --- src/box/relay.cc | 12 ++++++++++++ src/box/relay.h | 4 ++++ 2 files changed, 16 insertions(+) diff --git a/src/box/relay.cc b/src/box/relay.cc index e16ac5a6b..dbad8a680 100644 --- a/src/box/relay.cc +++ b/src/box/relay.cc @@ -146,6 +146,8 @@ struct relay { alignas(CACHELINE_SIZE) /** Known relay vclock. */ struct vclock vclock; + /** Triggers fired once tx knows the new relay vclock. */ + struct rlist on_status_update; /** * True if the relay needs Raft updates. It can live fine * without sending Raft updates, if it is a relay to an @@ -173,6 +175,12 @@ relay_vclock(const struct relay *relay) return &relay->tx.vclock; } +void +relay_on_status_update(struct relay *relay, struct trigger *trigger) +{ + trigger_add(&relay->tx.on_status_update, trigger); +} + double relay_last_row_time(const struct relay *relay) { @@ -201,6 +209,7 @@ relay_new(struct replica *replica) diag_create(&relay->diag); stailq_create(&relay->pending_gc); relay->state = RELAY_OFF; + rlist_create(&relay->tx.on_status_update); return relay; } @@ -423,6 +432,9 @@ tx_status_update(struct cmsg *msg) txn_limbo_ack(&txn_limbo, status->relay->replica->id, vclock_get(&status->vclock, instance_id)); } + + trigger_run(&status->relay->tx.on_status_update, status->relay); + static const struct cmsg_hop route[] = { {relay_status_update, NULL} }; diff --git a/src/box/relay.h b/src/box/relay.h index b32e2ea2a..4e6ecaffb 100644 --- a/src/box/relay.h +++ b/src/box/relay.h @@ -93,6 +93,10 @@ relay_vclock(const struct relay *relay); double relay_last_row_time(const struct relay *relay); +/** Set a trigger on relay vclock update as seen by tx. */ +void +relay_on_status_update(struct relay *relay, struct trigger *trigger); + /** * Send a Raft update request to the relay channel. It is not * guaranteed that it will be delivered. The connection may break. -- 2.24.3 (Apple Git-128)