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extern crate winapi;
pub use self::device::{
default_input_device, default_output_device, Device, Devices, SupportedInputConfigs,
SupportedOutputConfigs,
};
pub use self::stream::Stream;
use self::winapi::um::winnt::HRESULT;
use std::io::Error as IoError;
use traits::HostTrait;
use BackendSpecificError;
use DevicesError;
mod com;
mod device;
mod stream;
#[derive(Debug)]
pub struct Host;
impl Host {
pub fn new() -> Result<Self, crate::HostUnavailable> {
Ok(Host)
}
}
impl HostTrait for Host {
type Devices = Devices;
type Device = Device;
fn is_available() -> bool {
true
}
fn devices(&self) -> Result<Self::Devices, DevicesError> {
Devices::new()
}
fn default_input_device(&self) -> Option<Self::Device> {
default_input_device()
}
fn default_output_device(&self) -> Option<Self::Device> {
default_output_device()
}
}
#[inline]
fn check_result(result: HRESULT) -> Result<(), IoError> {
if result < 0 {
Err(IoError::from_raw_os_error(result))
} else {
Ok(())
}
}
fn check_result_backend_specific(result: HRESULT) -> Result<(), BackendSpecificError> {
match check_result(result) {
Ok(()) => Ok(()),
Err(err) => Err(BackendSpecificError {
description: format!("{}", err),
}),
}
}