Struct tokio_io_pool::Builder [−][src]
pub struct Builder { /* fields omitted */ }
Builds an I/O-oriented thread pool (Runtime
) with custom configuration values.
Methods can be chained in order to set the configuration values. The thread pool is constructed
by calling Builder::build
. New instances of Builder
are obtained via
[Builder::default
].
See function level documentation for details on the various configuration settings.
Methods
impl Builder
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impl Builder
pub fn pool_size(&mut self, val: usize) -> &mut Self
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pub fn pool_size(&mut self, val: usize) -> &mut Self
Set the number of worker threads for the thread pool instance.
This must be a number between 1 and 32,768 though it is advised to keep this value on the smaller side.
The default value is the number of cores available to the system.
pub fn name_prefix<S: Into<String>>(&mut self, val: S) -> &mut Self
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pub fn name_prefix<S: Into<String>>(&mut self, val: S) -> &mut Self
Set name prefix of threads spawned by the scheduler
Thread name prefix is used for generating thread names. For example, if prefix is
my-pool-
, then threads in the pool will get names like my-pool-1
etc.
If this configuration is not set, then the thread will use the system default naming scheme.
pub fn after_start<F>(&mut self, f: F) -> &mut Self where
F: Fn() + Send + Sync + 'static,
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pub fn after_start<F>(&mut self, f: F) -> &mut Self where
F: Fn() + Send + Sync + 'static,
Execute function f
after each thread is started but before it starts doing work.
This is intended for bookkeeping and monitoring use cases.
pub fn before_stop<F>(&mut self, f: F) -> &mut Self where
F: Fn() + Send + Sync + 'static,
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pub fn before_stop<F>(&mut self, f: F) -> &mut Self where
F: Fn() + Send + Sync + 'static,
Execute function f
before each thread stops.
This is intended for bookkeeping and monitoring use cases.
pub fn build(&self) -> Result<Runtime>
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pub fn build(&self) -> Result<Runtime>
Trait Implementations
impl Debug for Builder
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impl Debug for Builder
fn fmt(&self, fmt: &mut Formatter) -> Result
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fn fmt(&self, fmt: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Default for Builder
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impl Default for Builder