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use crate::Result;
use cfg_if::cfg_if;
cfg_if! {
if #[cfg(feature = "tokio")] {
type DefaultRuntime = async_rs::TokioRuntime;
pub(crate) type DefaultRuntimeKit = async_rs::Tokio;
/// Return the default [`async_rs::Runtime`] for the active runtime feature.
///
/// The exact type depends on which runtime feature flag is enabled:
/// `tokio` (default), `smol`, or `async-global-executor`.
///
/// Returns [`ErrorKind::NoDefaultRuntime`] if no runtime feature is active.
///
/// [`ErrorKind::NoDefaultRuntime`]: crate::ErrorKind::NoDefaultRuntime
pub fn default_runtime() -> Result<DefaultRuntime> {
cfg_if! {
if #[cfg(test)] {
Ok(async_rs::Runtime::tokio()?)
} else {
Ok(async_rs::Runtime::tokio_current())
}
}
}
} else if #[cfg(feature = "async-global-executor")] {
type DefaultRuntime = async_rs::AGERuntime;
pub(crate) type DefaultRuntimeKit = async_rs::util::RuntimeParts<async_rs::AsyncGlobalExecutor, async_rs::AsyncIO>;
/// Return the default [`async_rs::Runtime`] for the active runtime feature.
///
/// The exact type depends on which runtime feature flag is enabled:
/// `tokio` (default), `smol`, or `async-global-executor`.
///
/// Returns [`ErrorKind::NoDefaultRuntime`] if no runtime feature is active.
///
/// [`ErrorKind::NoDefaultRuntime`]: crate::ErrorKind::NoDefaultRuntime
pub fn default_runtime() -> Result<DefaultRuntime> {
Ok(async_rs::Runtime::async_global_executor())
}
} else if #[cfg(feature = "smol")] {
type DefaultRuntime = async_rs::SmolRuntime;
pub(crate) type DefaultRuntimeKit = async_rs::Smol;
/// Return the default [`async_rs::Runtime`] for the active runtime feature.
///
/// The exact type depends on which runtime feature flag is enabled:
/// `tokio` (default), `smol`, or `async-global-executor`.
///
/// Returns [`ErrorKind::NoDefaultRuntime`] if no runtime feature is active.
///
/// [`ErrorKind::NoDefaultRuntime`]: crate::ErrorKind::NoDefaultRuntime
pub fn default_runtime() -> Result<DefaultRuntime> {
Ok(async_rs::Runtime::smol())
}
} else {
type DefaultRuntime = async_rs::NoopRuntime;
pub(crate) type DefaultRuntimeKit = async_rs::Noop;
/// Return the default [`async_rs::Runtime`] for the active runtime feature.
///
/// The exact type depends on which runtime feature flag is enabled:
/// `tokio` (default), `smol`, or `async-global-executor`.
///
/// Returns [`ErrorKind::NoDefaultRuntime`] if no runtime feature is active.
///
/// [`ErrorKind::NoDefaultRuntime`]: crate::ErrorKind::NoDefaultRuntime
pub fn default_runtime() -> Result<DefaultRuntime> {
Err(crate::ErrorKind::NoDefaultRuntime.into())
}
}
}