tracker-rs 0.8.0

Rust bindings for tracker
Documentation 
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use crate::SparqlConnection;
use glib::object::IsA;
use glib::translate::*;
use std::ptr;

pub trait SparqlConnectionExtManual {
    #[doc(alias = "tracker_sparql_connection_update")]
    fn update(
        &self,
        sparql: &str,
        cancellable: Option<&impl IsA<gio::Cancellable>>,
    ) -> Result<(), glib::Error>;
}

impl SparqlConnectionExtManual for SparqlConnection {
    fn update(
        &self,
        sparql: &str,
        cancellable: Option<&impl IsA<gio::Cancellable>>,
    ) -> Result<(), glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            // We need to implement this manually since _update() returns void, but
            // gir expects functions which take GError to return a bool
            let _ = ffi::tracker_sparql_connection_update(
                self.to_glib_none().0,
                sparql.to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            }
        }
    }
}

unsafe impl Send for SparqlConnection {}
unsafe impl Sync for SparqlConnection {}

/* The following function is not implemented in crate::auto because of the error message below.

pub trait SparqlConnectionExtManual: 'static {
    update_array_async<P: IsA<gio::Cancellable>, Q: FnOnce(Result<(), glib::Error>) + Send + 'static>(&self, sparql: &str, cancellable: Option<&P>, callback: Q);
}

impl<O: IsA<SparqlConnection>> SparqlConnectionExtManual for O {
        #[doc(alias = "tracker_sparql_connection_update_array_async")]
    pub fn update_array_async<P: IsA<gio::Cancellable>, Q: FnOnce(Result<(), glib::Error>) + Send + 'static>(&self, sparql: &str, cancellable: Option<&P>, callback: Q) {
        let sparql_length = sparql.len() as i32;
        let user_data: Box_<Q> = Box_::new(callback);
        unsafe extern "C" fn update_array_async_trampoline<Q: FnOnce(Result<(), glib::Error>) + Send + 'static>(_source_object: *mut glib::gobject_ffi::GObject, res: *mut gio::ffi::GAsyncResult, user_data: glib::ffi::gpointer) {
            let mut error = ptr::null_mut();
            let _ = ffi::tracker_sparql_connection_update_array_finish(_source_object as *mut _, res, &mut error);
            let result = if error.is_null() { Ok(()) } else { Err(from_glib_full(error)) };
            let callback: Box_<Q> = Box_::from_raw(user_data as *mut _);
            callback(result);
        }
        let callback = update_array_async_trampoline::<Q>;
        unsafe {
            ffi::tracker_sparql_connection_update_array_async(self.to_glib_none().0, sparql.to_glib_none().0, sparql_length, cancellable.map(|p| p.as_ref()).to_glib_none().0, Some(callback), Box_::into_raw(user_data) as *mut _);
        }
    }


error[E0277]: the trait bound `str: glib::translate::ToGlibPtr<'_, *mut *mut i8>` is not satisfied
   --> src/auto/sparql_connection.rs:182:93
    |
182 | ..._none().0, sparql.to_glib_none().0, sparql_length, cancellable.map(|p| p.as_ref()).to_glib_none().0, Some(callback), Box_::into_raw(us...
    |                      ^^^^^^^^^^^^ the trait `glib::translate::ToGlibPtr<'_, *mut *mut i8>` is not implemented for `str`
    |
    = help: the following implementations were found:
              <str as glib::translate::ToGlibPtr<'a, *const i8>>
              <str as glib::translate::ToGlibPtr<'a, *mut i8>>

*/