use crate::{AsyncResult, Cancellable, FilterInputStream, InputStream, Seekable, ffi};
use glib::{
prelude::*,
signal::{SignalHandlerId, connect_raw},
translate::*,
};
use std::{boxed::Box as Box_, pin::Pin};
glib::wrapper! {
#[doc(alias = "GBufferedInputStream")]
pub struct BufferedInputStream(Object<ffi::GBufferedInputStream, ffi::GBufferedInputStreamClass>) @extends FilterInputStream, InputStream, @implements Seekable;
match fn {
type_ => || ffi::g_buffered_input_stream_get_type(),
}
}
impl BufferedInputStream {
pub const NONE: Option<&'static BufferedInputStream> = None;
#[doc(alias = "g_buffered_input_stream_new")]
pub fn new(base_stream: &impl IsA<InputStream>) -> BufferedInputStream {
unsafe {
InputStream::from_glib_full(ffi::g_buffered_input_stream_new(
base_stream.as_ref().to_glib_none().0,
))
.unsafe_cast()
}
}
#[doc(alias = "g_buffered_input_stream_new_sized")]
pub fn new_sized(base_stream: &impl IsA<InputStream>, size: usize) -> BufferedInputStream {
unsafe {
InputStream::from_glib_full(ffi::g_buffered_input_stream_new_sized(
base_stream.as_ref().to_glib_none().0,
size,
))
.unsafe_cast()
}
}
pub fn builder() -> BufferedInputStreamBuilder {
BufferedInputStreamBuilder::new()
}
}
impl Default for BufferedInputStream {
fn default() -> Self {
glib::object::Object::new::<Self>()
}
}
#[must_use = "The builder must be built to be used"]
pub struct BufferedInputStreamBuilder {
builder: glib::object::ObjectBuilder<'static, BufferedInputStream>,
}
impl BufferedInputStreamBuilder {
fn new() -> Self {
Self {
builder: glib::object::Object::builder(),
}
}
pub fn buffer_size(self, buffer_size: u32) -> Self {
Self {
builder: self.builder.property("buffer-size", buffer_size),
}
}
pub fn base_stream(self, base_stream: &impl IsA<InputStream>) -> Self {
Self {
builder: self
.builder
.property("base-stream", base_stream.clone().upcast()),
}
}
pub fn close_base_stream(self, close_base_stream: bool) -> Self {
Self {
builder: self
.builder
.property("close-base-stream", close_base_stream),
}
}
#[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
pub fn build(self) -> BufferedInputStream {
self.builder.build()
}
}
pub trait BufferedInputStreamExt: IsA<BufferedInputStream> + 'static {
#[doc(alias = "g_buffered_input_stream_fill")]
fn fill(
&self,
count: isize,
cancellable: Option<&impl IsA<Cancellable>>,
) -> Result<isize, glib::Error> {
unsafe {
let mut error = std::ptr::null_mut();
let ret = ffi::g_buffered_input_stream_fill(
self.as_ref().to_glib_none().0,
count,
cancellable.map(|p| p.as_ref()).to_glib_none().0,
&mut error,
);
if error.is_null() {
Ok(ret)
} else {
Err(from_glib_full(error))
}
}
}
#[doc(alias = "g_buffered_input_stream_fill_async")]
fn fill_async<P: FnOnce(Result<isize, glib::Error>) + 'static>(
&self,
count: isize,
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 fill_async_trampoline<
P: FnOnce(Result<isize, glib::Error>) + 'static,
>(
_source_object: *mut glib::gobject_ffi::GObject,
res: *mut crate::ffi::GAsyncResult,
user_data: glib::ffi::gpointer,
) {
unsafe {
let mut error = std::ptr::null_mut();
let ret = ffi::g_buffered_input_stream_fill_finish(
_source_object as *mut _,
res,
&mut error,
);
let result = if error.is_null() {
Ok(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 = fill_async_trampoline::<P>;
unsafe {
ffi::g_buffered_input_stream_fill_async(
self.as_ref().to_glib_none().0,
count,
io_priority.into_glib(),
cancellable.map(|p| p.as_ref()).to_glib_none().0,
Some(callback),
Box_::into_raw(user_data) as *mut _,
);
}
}
fn fill_future(
&self,
count: isize,
io_priority: glib::Priority,
) -> Pin<Box_<dyn std::future::Future<Output = Result<isize, glib::Error>> + 'static>> {
Box_::pin(crate::GioFuture::new(
self,
move |obj, cancellable, send| {
obj.fill_async(count, io_priority, Some(cancellable), move |res| {
send.resolve(res);
});
},
))
}
#[doc(alias = "g_buffered_input_stream_get_available")]
#[doc(alias = "get_available")]
fn available(&self) -> usize {
unsafe { ffi::g_buffered_input_stream_get_available(self.as_ref().to_glib_none().0) }
}
#[doc(alias = "g_buffered_input_stream_get_buffer_size")]
#[doc(alias = "get_buffer_size")]
#[doc(alias = "buffer-size")]
fn buffer_size(&self) -> usize {
unsafe { ffi::g_buffered_input_stream_get_buffer_size(self.as_ref().to_glib_none().0) }
}
#[doc(alias = "g_buffered_input_stream_peek_buffer")]
fn peek_buffer(&self) -> Vec<u8> {
unsafe {
let mut count = std::mem::MaybeUninit::uninit();
let ret = FromGlibContainer::from_glib_none_num(
ffi::g_buffered_input_stream_peek_buffer(
self.as_ref().to_glib_none().0,
count.as_mut_ptr(),
),
count.assume_init() as _,
);
ret
}
}
#[doc(alias = "g_buffered_input_stream_read_byte")]
fn read_byte(&self, cancellable: Option<&impl IsA<Cancellable>>) -> Result<i32, glib::Error> {
unsafe {
let mut error = std::ptr::null_mut();
let ret = ffi::g_buffered_input_stream_read_byte(
self.as_ref().to_glib_none().0,
cancellable.map(|p| p.as_ref()).to_glib_none().0,
&mut error,
);
if error.is_null() {
Ok(ret)
} else {
Err(from_glib_full(error))
}
}
}
#[doc(alias = "g_buffered_input_stream_set_buffer_size")]
#[doc(alias = "buffer-size")]
fn set_buffer_size(&self, size: usize) {
unsafe {
ffi::g_buffered_input_stream_set_buffer_size(self.as_ref().to_glib_none().0, size);
}
}
#[doc(alias = "buffer-size")]
fn connect_buffer_size_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
unsafe extern "C" fn notify_buffer_size_trampoline<
P: IsA<BufferedInputStream>,
F: Fn(&P) + 'static,
>(
this: *mut ffi::GBufferedInputStream,
_param_spec: glib::ffi::gpointer,
f: glib::ffi::gpointer,
) {
unsafe {
let f: &F = &*(f as *const F);
f(BufferedInputStream::from_glib_borrow(this).unsafe_cast_ref())
}
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
c"notify::buffer-size".as_ptr(),
Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
notify_buffer_size_trampoline::<Self, F> as *const (),
)),
Box_::into_raw(f),
)
}
}
}
impl<O: IsA<BufferedInputStream>> BufferedInputStreamExt for O {}