From 2076f7d85f508a1904ecd1f8e3f9dba2192c8b52 Mon Sep 17 00:00:00 2001
From: kim <89579420+NyaaaWhatsUpDoc@users.noreply.github.com>
Date: Sun, 13 Oct 2024 22:19:52 +0000
Subject: [PATCH] [feature] for an sqlite database with journal mode != WAL,
 use maximum of 1 open conn (#3428)

---
 internal/db/bundb/bundb.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/internal/db/bundb/bundb.go b/internal/db/bundb/bundb.go
index 45607ea15..b5d3ff003 100644
--- a/internal/db/bundb/bundb.go
+++ b/internal/db/bundb/bundb.go
@@ -401,6 +401,18 @@ func maxOpenConns() int {
 	if multiplier < 1 {
 		return 1
 	}
+
+	// Specifically for SQLite databases with
+	// a journal mode of anything EXCEPT "wal",
+	// only 1 concurrent connection is supported.
+	if strings.ToLower(config.GetDbType()) == "sqlite" {
+		journalMode := config.GetDbSqliteJournalMode()
+		journalMode = strings.ToLower(journalMode)
+		if journalMode != "wal" {
+			return 1
+		}
+	}
+
 	return multiplier * runtime.GOMAXPROCS(0)
 }