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use callback::Callback;
use std::any::Any;
use std::fmt;
use std::sync::Arc;
use std::time::Duration;
/// Thread pool specific configuration values
#[derive(Clone)]
pub(crate) struct Config {
pub keep_alive: Option<Duration>,
// Used to configure a worker thread
pub name_prefix: Option<String>,
pub stack_size: Option<usize>,
pub around_worker: Option<Callback>,
pub after_start: Option<Arc<dyn Fn() + Send + Sync>>,
pub before_stop: Option<Arc<dyn Fn() + Send + Sync>>,
pub panic_handler: Option<Arc<dyn Fn(Box<dyn Any + Send>) + Send + Sync>>,
}
/// Max number of workers that can be part of a pool. This is the most that can
/// fit in the scheduler state. Note, that this is the max number of **active**
/// threads. There can be more standby threads.
pub(crate) const MAX_WORKERS: usize = 1 << 15;
impl fmt::Debug for Config {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
fmt.debug_struct("Config")
.field("keep_alive", &self.keep_alive)
.field("name_prefix", &self.name_prefix)
.field("stack_size", &self.stack_size)
.finish()
}
}
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