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use Cancellable;
use Error;
use OutputStream;
use ffi;
use glib::object::IsA;
use glib::translate::*;
use std::fmt;
use std::ptr;
glib_wrapper! {
pub struct PollableOutputStream(Interface<ffi::GPollableOutputStream>) @requires OutputStream;
match fn {
get_type => || ffi::g_pollable_output_stream_get_type(),
}
}
pub const NONE_POLLABLE_OUTPUT_STREAM: Option<&PollableOutputStream> = None;
pub trait PollableOutputStreamExt: 'static {
fn can_poll(&self) -> bool;
fn is_writable(&self) -> bool;
fn write_nonblocking<'a, P: IsA<Cancellable> + 'a, Q: Into<Option<&'a P>>>(&self, buffer: &[u8], cancellable: Q) -> Result<isize, Error>;
}
impl<O: IsA<PollableOutputStream>> PollableOutputStreamExt for O {
fn can_poll(&self) -> bool {
unsafe {
from_glib(ffi::g_pollable_output_stream_can_poll(self.as_ref().to_glib_none().0))
}
}
fn is_writable(&self) -> bool {
unsafe {
from_glib(ffi::g_pollable_output_stream_is_writable(self.as_ref().to_glib_none().0))
}
}
fn write_nonblocking<'a, P: IsA<Cancellable> + 'a, Q: Into<Option<&'a P>>>(&self, buffer: &[u8], cancellable: Q) -> Result<isize, Error> {
let cancellable = cancellable.into();
let count = buffer.len() as usize;
unsafe {
let mut error = ptr::null_mut();
let ret = ffi::g_pollable_output_stream_write_nonblocking(self.as_ref().to_glib_none().0, buffer.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)) }
}
}
}
impl fmt::Display for PollableOutputStream {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "PollableOutputStream")
}
}