From: Christian Kamm <mail@ckamm.de>
Date: Thu, 10 Jan 2019 08:21:48 +0000 (+0100)
Subject: sqlite: Set exclusive locking_mode to avoid WAL issues #6881
X-Git-Tag: archive/raspbian/3.16.7-1_deb13u1+rpi1~1^2~12^2~21^2~468^2~345
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=b4e73690b7c4622d5ae8fb3b4195f2b46407832f;p=nextcloud-desktop.git

sqlite: Set exclusive locking_mode to avoid WAL issues #6881

Can be overridden with OWNCLOUD_SQLITE_LOCKING_MODE
---

diff --git a/src/common/syncjournaldb.cpp b/src/common/syncjournaldb.cpp
index d112c64e7..9f321e362 100644
--- a/src/common/syncjournaldb.cpp
+++ b/src/common/syncjournaldb.cpp
@@ -303,6 +303,18 @@ bool SyncJournalDb::checkConnect()
         qCInfo(lcDb) << "sqlite3 version" << pragma1.stringValue(0);
     }
 
+    // Set locking mode to avoid issues with WAL on Windows
+    static QByteArray locking_mode_env = qgetenv("OWNCLOUD_SQLITE_LOCKING_MODE");
+    if (locking_mode_env.isEmpty())
+        locking_mode_env = "EXCLUSIVE";
+    pragma1.prepare("PRAGMA locking_mode=" + locking_mode_env + ";");
+    if (!pragma1.exec()) {
+        return sqlFail("Set PRAGMA locking_mode", pragma1);
+    } else {
+        pragma1.next();
+        qCInfo(lcDb) << "sqlite3 locking_mode=" << pragma1.stringValue(0);
+    }
+
     pragma1.prepare("PRAGMA journal_mode=" + _journalMode + ";");
     if (!pragma1.exec()) {
         return sqlFail("Set PRAGMA journal_mode", pragma1);