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Add check_reserved_lock method. #68

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Merged
carlsverre merged 2 commits into from
Feb 20, 2026
Merged

Add check_reserved_lock method. #68

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db22190
Add `check_reserved_lock` method.
bkoropoff Feb 20, 2026
6db9d4d
Merge branch 'main' into check-reserved-lock
carlsverre Feb 20, 2026
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20 changes: 19 additions & 1 deletion src/vfs.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -166,6 +166,10 @@ pub trait Vfs: Send + Sync {
Ok(())
}

fn check_reserved_lock(&self, handle: &mut Self::Handle) -> VfsResult<bool> {
Ok(false)
}

fn sync(&self, handle: &mut Self::Handle) -> VfsResult<()> {
Ok(())
}
Expand Down Expand Up @@ -298,7 +302,7 @@ fn register_inner<T: Vfs>(
xFileSize: Some(x_file_size::<T>),
xLock: Some(x_lock::<T>),
xUnlock: Some(x_unlock::<T>),
xCheckReservedLock: None,
xCheckReservedLock: Some(x_check_reserved_lock::<T>),
xFileControl: Some(x_file_control::<T>),
xSectorSize: Some(x_sector_size::<T>),
xDeviceCharacteristics: Some(x_device_characteristics::<T>),
Expand Down Expand Up @@ -551,6 +555,20 @@ unsafe extern "C" fn x_unlock<T: Vfs>(p_file: *mut ffi::sqlite3_file, raw_lock:
})
}

unsafe extern "C" fn x_check_reserved_lock<T: Vfs>(
p_file: *mut ffi::sqlite3_file,
p_out: *mut c_int,
) -> c_int {
fallible(|| {
let file = unwrap_file!(p_file, T)?;
let vfs = unwrap_vfs!(file.vfs, T)?;
unsafe {
*p_out = vfs.check_reserved_lock(file.handle.assume_init_mut())? as c_int;
}
Ok(vars::SQLITE_OK)
})
}

unsafe extern "C" fn x_file_control<T: Vfs>(
p_file: *mut ffi::sqlite3_file,
op: c_int,
Expand Down
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