From 8eae424a9a76e14ddbc22ac6abb268ea2e3b6ce7 Mon Sep 17 00:00:00 2001 From: Heikki Linnakangas Date: Sat, 24 Aug 2024 00:21:15 +0300 Subject: [PATCH v2 03/12] Rename SetWalSummarizerLatch function The fact that it uses a latch for the wakeup is an implementation detail --- src/backend/access/transam/xlog.c | 2 +- src/backend/postmaster/walsummarizer.c | 4 ++-- src/include/postmaster/walsummarizer.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index ee0fb0e28f..45a4a40eca 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -7268,7 +7268,7 @@ CreateCheckPoint(int flags) * until after the above call that flushes the XLOG_CHECKPOINT_ONLINE * record. */ - SetWalSummarizerLatch(); + WakeupWalSummarizer(); /* * Let smgr do post-checkpoint cleanup (eg, deleting old files). diff --git a/src/backend/postmaster/walsummarizer.c b/src/backend/postmaster/walsummarizer.c index c1bf4a70dd..3a407f8daa 100644 --- a/src/backend/postmaster/walsummarizer.c +++ b/src/backend/postmaster/walsummarizer.c @@ -626,7 +626,7 @@ GetOldestUnsummarizedLSN(TimeLineID *tli, bool *lsn_is_exact) } /* - * Attempt to set the WAL summarizer's latch. + * Wake up the WAL summarizer process. * * This might not work, because there's no guarantee that the WAL summarizer * process was successfully started, and it also might have started but @@ -634,7 +634,7 @@ GetOldestUnsummarizedLSN(TimeLineID *tli, bool *lsn_is_exact) * latch set, but there's no guarantee. */ void -SetWalSummarizerLatch(void) +WakeupWalSummarizer(void) { ProcNumber pgprocno; diff --git a/src/include/postmaster/walsummarizer.h b/src/include/postmaster/walsummarizer.h index aedca55676..2642aa701d 100644 --- a/src/include/postmaster/walsummarizer.h +++ b/src/include/postmaster/walsummarizer.h @@ -29,7 +29,7 @@ extern void GetWalSummarizerState(TimeLineID *summarized_tli, int *summarizer_pid); extern XLogRecPtr GetOldestUnsummarizedLSN(TimeLineID *tli, bool *lsn_is_exact); -extern void SetWalSummarizerLatch(void); +extern void WakeupWalSummarizer(void); extern void WaitForWalSummarization(XLogRecPtr lsn); #endif -- 2.39.2