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// SPDX-License-Identifier: MIT
use super::*;
/// Trait containing the rest of [`struct@ClientInfo`] methods.
///
/// # Implementors
///
/// [`ClientInfo`][struct@crate::ClientInfo]
pub trait ClientInfoExtManual {
/// Get the list of type of events configured to be listen.
///
/// # Returns
///
/// [`true`] when the overall operation finishes successfully, else [`false`].
///
/// ## `event_types`
/// The array with elements for the type of
/// event to listen.
#[doc(alias = "alsaseq_client_info_get_event_filter")]
#[doc(alias = "get_event_filter")]
fn event_filter(&self) -> Result<Vec<EventType>, glib::Error>;
/// Set the list of type of events configured to be listen.
/// ## `event_types`
/// The array with elements for the type of event to
/// listen.
///
/// # Returns
///
/// [`true`] when the overall operation finishes successfully, else [`false`].
#[doc(alias = "alsaseq_client_info_set_event_filter")]
fn set_event_filter(&self, entries: &[EventType]) -> Result<(), glib::Error>;
}
impl<O: IsA<ClientInfo>> ClientInfoExtManual for O {
fn event_filter(&self) -> Result<Vec<EventType>, glib::Error> {
unsafe {
let mut ptr = std::ptr::null_mut() as *mut ffi::ALSASeqEventType;
let mut len = 0 as usize;
let mut error = std::ptr::null_mut();
let is_ok = ffi::alsaseq_client_info_get_event_filter(
self.as_ref().to_glib_none().0,
&mut ptr,
&mut len,
&mut error,
);
assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
if error.is_null() {
let mut entries = Vec::new();
// Avoid unsafe precondition violation. The slice::from_raw_parts() requires the
// non-null pointer.
if len > 0 {
let array = std::slice::from_raw_parts(ptr, len);
for &entry in array {
entries.push(EventType::from_glib(entry));
}
}
Ok(entries)
} else {
Err(from_glib_full(error))
}
}
}
fn set_event_filter(&self, entries: &[EventType]) -> Result<(), glib::Error> {
unsafe {
let mut array = Vec::new();
let mut error = std::ptr::null_mut();
for &entry in entries {
array.push(entry.into_glib());
}
let is_ok = ffi::alsaseq_client_info_set_event_filter(
self.as_ref().to_glib_none().0,
array.as_ptr(),
array.len(),
&mut error,
);
assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
if error.is_null() {
Ok(())
} else {
Err(from_glib_full(error))
}
}
}
}
#[cfg(test)]
mod test {
use crate::{prelude::*, *};
#[test]
fn test_manual_bindings() {
let filter_expected = vec![
EventType::QueueSkew,
EventType::Sensing,
EventType::ClientStart,
EventType::PortStart,
EventType::PortSubscribed,
EventType::Usr1,
EventType::Usr4,
EventType::Usr7,
EventType::Sysex,
EventType::UsrVar2,
EventType::UsrVar3,
EventType::UsrVar4,
];
let info = ClientInfo::new();
let filter_orig = info.event_filter().unwrap();
info.set_event_filter(&filter_expected).unwrap();
let filter_target = info.event_filter().unwrap();
assert_ne!(filter_expected, filter_orig);
assert_eq!(filter_expected, filter_target);
}
}