From: Serge Petrenko <sergepetrenko@tarantool.org> To: sergos@tarantool.org, v.shpilevoy@tarantool.org Cc: tarantool-patches@dev.tarantool.org Subject: [Tarantool-patches] [PATCH 1/3] vclock: add an ability to set individual clock components Date: Fri, 31 Jan 2020 17:58:05 +0300 [thread overview] Message-ID: <8c924da71c7c3253453f789c130d2dff5c319eff.1580482010.git.sergepetrenko@tarantool.org> (raw) In-Reply-To: <cover.1580482010.git.sergepetrenko@tarantool.org> This is needed to 'hide' 0-th vclock component in replication responses. Follow-up #3186 --- src/box/vclock.c | 12 ++++++++++++ src/box/vclock.h | 11 +++++++++++ 2 files changed, 23 insertions(+) diff --git a/src/box/vclock.c b/src/box/vclock.c index 90ae27591..90802308e 100644 --- a/src/box/vclock.c +++ b/src/box/vclock.c @@ -37,6 +37,17 @@ #include "diag.h" #include "tt_static.h" +void +vclock_set(struct vclock *vclock, uint32_t replica_id, int64_t lsn) +{ + assert(lsn >= 0); + assert(replica_id < VCLOCK_MAX); + vclock->signature -= vclock_get(vclock, replica_id); + vclock->lsn[replica_id] = lsn; + vclock->map |= 1 << replica_id; + vclock->signature += lsn; +} + int64_t vclock_follow(struct vclock *vclock, uint32_t replica_id, int64_t lsn) { @@ -51,6 +62,7 @@ vclock_follow(struct vclock *vclock, uint32_t replica_id, int64_t lsn) return prev_lsn; } + static int vclock_snprint(char *buf, int size, const struct vclock *vclock) { diff --git a/src/box/vclock.h b/src/box/vclock.h index eb0fb5d8b..e54711bc1 100644 --- a/src/box/vclock.h +++ b/src/box/vclock.h @@ -209,6 +209,17 @@ vclock_calc_sum(const struct vclock *vclock) return sum; } +/** + * Set vclock component represented by replica id to the desired + * value. + * + * @param vclock Vector clock. + * @param replica_id Replica identifier. + * @param lsn Lsn to set + */ +void +vclock_set(struct vclock *vclock, uint32_t replica_id, int64_t lsn); + static inline int64_t vclock_sum(const struct vclock *vclock) { -- 2.21.0 (Apple Git-122)
next prev parent reply other threads:[~2020-01-31 14:58 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-01-31 14:58 [Tarantool-patches] [PATCH 0/3] replication: count local space requests separately Serge Petrenko 2020-01-31 14:58 ` Serge Petrenko [this message] 2020-01-31 14:58 ` [Tarantool-patches] [PATCH 2/3] replication: hide 0-th vclock components in replication responses Serge Petrenko 2020-01-31 14:58 ` [Tarantool-patches] [PATCH 3/3] box: start counting local space requests separately Serge Petrenko 2020-02-03 13:27 ` [Tarantool-patches] [PATCH 0/3] replication: count " Serge Petrenko
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