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#![doc = include_str!("../../README.md")]
#![warn(missing_docs, unreachable_pub)]
#![allow(stable_features)]
#![feature(type_alias_impl_trait)]
#![feature(impl_trait_in_assoc_type)]
#![feature(io_error_more)]
#![feature(lazy_cell)]
#![feature(slice_internals)]
#![feature(stmt_expr_attributes)]
#![feature(thread_local)]
#[macro_use]
pub mod macros;
#[cfg(feature = "macros")]
#[doc(hidden)]
pub use monoio_macros::select_priv_declare_output_enum;
#[macro_use]
mod driver;
pub(crate) mod builder;
pub(crate) mod runtime;
mod scheduler;
pub mod time;
extern crate alloc;
#[cfg(feature = "sync")]
pub mod blocking;
pub mod buf;
pub mod fs;
pub mod io;
pub mod net;
pub mod task;
pub mod utils;
use std::future::Future;
#[cfg(feature = "sync")]
pub use blocking::spawn_blocking;
pub use builder::{Buildable, RuntimeBuilder};
pub use driver::Driver;
#[cfg(all(target_os = "linux", feature = "iouring"))]
pub use driver::IoUringDriver;
#[cfg(all(unix, feature = "legacy"))]
pub use driver::LegacyDriver;
#[cfg(feature = "macros")]
pub use monoio_macros::{main, test, test_all};
pub use runtime::{spawn, Runtime};
#[cfg(all(
unix,
any(all(target_os = "linux", feature = "iouring"), feature = "legacy")
))]
pub use {builder::FusionDriver, runtime::FusionRuntime};
/// Start a monoio runtime.
///
/// # Examples
///
/// Basic usage
///
/// ```no_run
/// use monoio::fs::File;
///
/// fn main() -> Result<(), Box<dyn std::error::Error>> {
/// monoio::start::<monoio::LegacyDriver, _>(async {
/// // Open a file
/// let file = File::open("hello.txt").await?;
///
/// let buf = vec![0; 4096];
/// // Read some data, the buffer is passed by ownership and
/// // submitted to the kernel. When the operation completes,
/// // we get the buffer back.
/// let (res, buf) = file.read_at(buf, 0).await;
/// let n = res?;
///
/// // Display the contents
/// println!("{:?}", &buf[..n]);
///
/// Ok(())
/// })
/// }
/// ```
pub fn start<D, F>(future: F) -> F::Output
where
F: Future,
F::Output: 'static,
D: Buildable + Driver,
{
let mut rt = builder::Buildable::build(builder::RuntimeBuilder::<D>::new())
.expect("Unable to build runtime.");
rt.block_on(future)
}
/// A specialized `Result` type for `io-uring` operations with buffers.
///
/// This type is used as a return value for asynchronous `io-uring` methods that
/// require passing ownership of a buffer to the runtime. When the operation
/// completes, the buffer is returned whether or not the operation completed
/// successfully.
///
/// # Examples
///
/// ```no_run
/// use monoio::fs::File;
///
/// fn main() -> Result<(), Box<dyn std::error::Error>> {
/// monoio::start::<monoio::LegacyDriver, _>(async {
/// // Open a file
/// let file = File::open("hello.txt").await?;
///
/// let buf = vec![0; 4096];
/// // Read some data, the buffer is passed by ownership and
/// // submitted to the kernel. When the operation completes,
/// // we get the buffer back.
/// let (res, buf) = file.read_at(buf, 0).await;
/// let n = res?;
///
/// // Display the contents
/// println!("{:?}", &buf[..n]);
///
/// Ok(())
/// })
/// }
/// ```
pub type BufResult<T, B> = (std::io::Result<T>, B);
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