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use unix-excl sqlite3 vfs

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This commit is contained in:
Scott Lamb 2023-12-29 16:31:06 -08:00
parent 2da459dae2
commit 38eba846f8
1 changed files with 10 additions and 2 deletions
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12
server/src/cmds/mod.rs
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@ -72,7 +72,7 @@ fn open_conn(db_dir: &Path, mode: OpenMode) -> Result<(dir::Fd, rusqlite::Connec
mode, mode,
rusqlite::version() rusqlite::version()
); );
let conn = rusqlite::Connection::open_with_flags( let conn = rusqlite::Connection::open_with_flags_and_vfs(
db_path, db_path,
match mode { match mode {
OpenMode::ReadOnly => rusqlite::OpenFlags::SQLITE_OPEN_READ_ONLY, OpenMode::ReadOnly => rusqlite::OpenFlags::SQLITE_OPEN_READ_ONLY,
@ -81,9 +81,17 @@ fn open_conn(db_dir: &Path, mode: OpenMode) -> Result<(dir::Fd, rusqlite::Connec
rusqlite::OpenFlags::SQLITE_OPEN_READ_WRITE | rusqlite::OpenFlags::SQLITE_OPEN_CREATE rusqlite::OpenFlags::SQLITE_OPEN_READ_WRITE | rusqlite::OpenFlags::SQLITE_OPEN_CREATE
}, },
} | } |
// rusqlite::Connection is not Sync, so there's no reason to tell SQLite3 to use the // `rusqlite::Connection` is not Sync, so there's no reason to tell SQLite3 to use the
// serialized threading mode. // serialized threading mode.
rusqlite::OpenFlags::SQLITE_OPEN_NO_MUTEX, rusqlite::OpenFlags::SQLITE_OPEN_NO_MUTEX,
// In read/write mode, Moonfire holds a directory lock for its entire operation, as
// described above. There's then no point in SQLite releasing its lock after each
// transaction and reacquiring it, or in using shared memory for the wal-index.
// See the following page: <https://www.sqlite.org/vfs.html>
match mode {
OpenMode::ReadOnly => "unix",
_ => "unix-excl",
},
)?; )?;
Ok((dir, conn)) Ok((dir, conn))
} }