use crate::{AsyncResult, Cancellable, FileInfo, OutputStream, Seekable};
use glib::{prelude::*, translate::*};
use std::{boxed::Box as Box_, pin::Pin};
glib::wrapper! {
#[doc(alias = "GFileOutputStream")]
pub struct FileOutputStream(Object<ffi::GFileOutputStream, ffi::GFileOutputStreamClass>) @extends OutputStream, @implements Seekable;
match fn {
type_ => || ffi::g_file_output_stream_get_type(),
}
}
impl FileOutputStream {
pub const NONE: Option<&'static FileOutputStream> = None;
}
mod sealed {
pub trait Sealed {}
impl<T: super::IsA<super::FileOutputStream>> Sealed for T {}
}
pub trait FileOutputStreamExt: IsA<FileOutputStream> + sealed::Sealed + 'static {
#[doc(alias = "g_file_output_stream_get_etag")]
#[doc(alias = "get_etag")]
fn etag(&self) -> Option<glib::GString> {
unsafe {
from_glib_full(ffi::g_file_output_stream_get_etag(
self.as_ref().to_glib_none().0,
))
}
}
#[doc(alias = "g_file_output_stream_query_info")]
fn query_info(
&self,
attributes: &str,
cancellable: Option<&impl IsA<Cancellable>>,
) -> Result<FileInfo, glib::Error> {
unsafe {
let mut error = std::ptr::null_mut();
let ret = ffi::g_file_output_stream_query_info(
self.as_ref().to_glib_none().0,
attributes.to_glib_none().0,
cancellable.map(|p| p.as_ref()).to_glib_none().0,
&mut error,
);
if error.is_null() {
Ok(from_glib_full(ret))
} else {
Err(from_glib_full(error))
}
}
}
#[doc(alias = "g_file_output_stream_query_info_async")]
fn query_info_async<P: FnOnce(Result<FileInfo, glib::Error>) + 'static>(
&self,
attributes: &str,
io_priority: glib::Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P,
) {
let main_context = glib::MainContext::ref_thread_default();
let is_main_context_owner = main_context.is_owner();
let has_acquired_main_context = (!is_main_context_owner)
.then(|| main_context.acquire().ok())
.flatten();
assert!(
is_main_context_owner || has_acquired_main_context.is_some(),
"Async operations only allowed if the thread is owning the MainContext"
);
let user_data: Box_<glib::thread_guard::ThreadGuard<P>> =
Box_::new(glib::thread_guard::ThreadGuard::new(callback));
unsafe extern "C" fn query_info_async_trampoline<
P: FnOnce(Result<FileInfo, glib::Error>) + 'static,
>(
_source_object: *mut glib::gobject_ffi::GObject,
res: *mut crate::ffi::GAsyncResult,
user_data: glib::ffi::gpointer,
) {
let mut error = std::ptr::null_mut();
let ret = ffi::g_file_output_stream_query_info_finish(
_source_object as *mut _,
res,
&mut error,
);
let result = if error.is_null() {
Ok(from_glib_full(ret))
} else {
Err(from_glib_full(error))
};
let callback: Box_<glib::thread_guard::ThreadGuard<P>> =
Box_::from_raw(user_data as *mut _);
let callback: P = callback.into_inner();
callback(result);
}
let callback = query_info_async_trampoline::<P>;
unsafe {
ffi::g_file_output_stream_query_info_async(
self.as_ref().to_glib_none().0,
attributes.to_glib_none().0,
io_priority.into_glib(),
cancellable.map(|p| p.as_ref()).to_glib_none().0,
Some(callback),
Box_::into_raw(user_data) as *mut _,
);
}
}
fn query_info_future(
&self,
attributes: &str,
io_priority: glib::Priority,
) -> Pin<Box_<dyn std::future::Future<Output = Result<FileInfo, glib::Error>> + 'static>> {
let attributes = String::from(attributes);
Box_::pin(crate::GioFuture::new(
self,
move |obj, cancellable, send| {
obj.query_info_async(&attributes, io_priority, Some(cancellable), move |res| {
send.resolve(res);
});
},
))
}
}
impl<O: IsA<FileOutputStream>> FileOutputStreamExt for O {}