diff options
| author | Eric Lemanissier <eric.lemanissier@gmail.com> | 2017-02-16 11:12:31 +0100 |
|---|---|---|
| committer | Eric Lemanissier <eric.lemanissier@gmail.com> | 2017-03-25 06:18:07 +0000 |
| commit | 610a9e8f319eafcbcf193e4b90119a6f89d0caf9 (patch) | |
| tree | f3e95ba23dfb16629e6af2e5018682106f2abd21 /src/plugins/sqldrivers | |
| parent | 8092a01f84b1ddbffe8d2410db37931f3a71c83a (diff) | |
SQLite: Disable mutex on connections
By default SQLite opens DB in Serialized mode, allowing connections to be used
from several threads simultaneously: https://www.sqlite.org/threadsafe.html
According to Qt documentation, database can only be used from one thread.
This change opens sqlite dabases in "Multi-thread" mode, so that one does not
pay for useless mutex locking for each DB access
Change-Id: Ife61f1a648d74c91d3b27a2ce0059d052ccc62b2
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/plugins/sqldrivers')
| -rw-r--r-- | src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp b/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp index c2feaeea56..8f336fd173 100644 --- a/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp +++ b/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp @@ -700,6 +700,8 @@ bool QSQLiteDriver::open(const QString & db, const QString &, const QString &, c if (openUriOption) openMode |= SQLITE_OPEN_URI; + openMode |= SQLITE_OPEN_NOMUTEX; + if (sqlite3_open_v2(db.toUtf8().constData(), &d->access, openMode, NULL) == SQLITE_OK) { sqlite3_busy_timeout(d->access, timeOut); setOpen(true); |