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use crate::AsyncResult;
use crate::Cancellable;
use crate::InputStream;
use crate::OutputStream;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;
use std::pin::Pin;
use std::ptr;
glib::wrapper! {
#[doc(alias = "GIOStream")]
pub struct IOStream(Object<ffi::GIOStream, ffi::GIOStreamClass>);
match fn {
type_ => || ffi::g_io_stream_get_type(),
}
}
impl IOStream {
pub const NONE: Option<&'static IOStream> = None;
}
pub trait IOStreamExt: 'static {
#[doc(alias = "g_io_stream_clear_pending")]
fn clear_pending(&self);
#[doc(alias = "g_io_stream_close")]
fn close(&self, cancellable: Option<&impl IsA<Cancellable>>) -> Result<(), glib::Error>;
#[doc(alias = "g_io_stream_close_async")]
fn close_async<P: FnOnce(Result<(), glib::Error>) + 'static>(
&self,
io_priority: glib::Priority,
cancellable: Option<&impl IsA<Cancellable>>,
callback: P,
);
fn close_future(
&self,
io_priority: glib::Priority,
) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>>;
#[doc(alias = "g_io_stream_get_input_stream")]
#[doc(alias = "get_input_stream")]
fn input_stream(&self) -> InputStream;
#[doc(alias = "g_io_stream_get_output_stream")]
#[doc(alias = "get_output_stream")]
fn output_stream(&self) -> OutputStream;
#[doc(alias = "g_io_stream_has_pending")]
fn has_pending(&self) -> bool;
#[doc(alias = "g_io_stream_is_closed")]
fn is_closed(&self) -> bool;
#[doc(alias = "g_io_stream_set_pending")]
fn set_pending(&self) -> Result<(), glib::Error>;
#[doc(alias = "closed")]
fn connect_closed_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}
impl<O: IsA<IOStream>> IOStreamExt for O {
fn clear_pending(&self) {
unsafe {
ffi::g_io_stream_clear_pending(self.as_ref().to_glib_none().0);
}
}
fn close(&self, cancellable: Option<&impl IsA<Cancellable>>) -> Result<(), glib::Error> {
unsafe {
let mut error = ptr::null_mut();
let is_ok = ffi::g_io_stream_close(
self.as_ref().to_glib_none().0,
cancellable.map(|p| p.as_ref()).to_glib_none().0,
&mut error,
);
assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
if error.is_null() {
Ok(())
} else {
Err(from_glib_full(error))
}
}
}
fn close_async<P: FnOnce(Result<(), glib::Error>) + 'static>(
&self,
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 close_async_trampoline<
P: FnOnce(Result<(), glib::Error>) + 'static,
>(
_source_object: *mut glib::gobject_ffi::GObject,
res: *mut crate::ffi::GAsyncResult,
user_data: glib::ffi::gpointer,
) {
let mut error = ptr::null_mut();
let _ = ffi::g_io_stream_close_finish(_source_object as *mut _, res, &mut error);
let result = if error.is_null() {
Ok(())
} 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 = close_async_trampoline::<P>;
unsafe {
ffi::g_io_stream_close_async(
self.as_ref().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 close_future(
&self,
io_priority: glib::Priority,
) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {
Box_::pin(crate::GioFuture::new(
self,
move |obj, cancellable, send| {
obj.close_async(io_priority, Some(cancellable), move |res| {
send.resolve(res);
});
},
))
}
fn input_stream(&self) -> InputStream {
unsafe {
from_glib_none(ffi::g_io_stream_get_input_stream(
self.as_ref().to_glib_none().0,
))
}
}
fn output_stream(&self) -> OutputStream {
unsafe {
from_glib_none(ffi::g_io_stream_get_output_stream(
self.as_ref().to_glib_none().0,
))
}
}
fn has_pending(&self) -> bool {
unsafe { from_glib(ffi::g_io_stream_has_pending(self.as_ref().to_glib_none().0)) }
}
fn is_closed(&self) -> bool {
unsafe { from_glib(ffi::g_io_stream_is_closed(self.as_ref().to_glib_none().0)) }
}
fn set_pending(&self) -> Result<(), glib::Error> {
unsafe {
let mut error = ptr::null_mut();
let is_ok = ffi::g_io_stream_set_pending(self.as_ref().to_glib_none().0, &mut error);
assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
if error.is_null() {
Ok(())
} else {
Err(from_glib_full(error))
}
}
}
fn connect_closed_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
unsafe extern "C" fn notify_closed_trampoline<P: IsA<IOStream>, F: Fn(&P) + 'static>(
this: *mut ffi::GIOStream,
_param_spec: glib::ffi::gpointer,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(IOStream::from_glib_borrow(this).unsafe_cast_ref())
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"notify::closed\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
notify_closed_trampoline::<Self, F> as *const (),
)),
Box_::into_raw(f),
)
}
}
}
impl fmt::Display for IOStream {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("IOStream")
}
}
