### system_executor

An executor that uses arbitrary threads.

    class system_executor

##### Member Functions

Name | Description
--- | ---
context | Obtain the underlying execution context.
defer | Request the system executor to invoke the given function object.
dispatch | Request the system executor to invoke the given function object.
on_work_finished | Inform the executor that some work is no longer outstanding.
on_work_started | Inform the executor that it has some outstanding work to do.
post | Request the system executor to invoke the given function object.

##### Friends

Name | Description
--- | ---
operator!= | Compare two executors for inequality.
operator== | Compare two executors for equality.

The system executor represents an execution context where functions are permitted to run on arbitrary threads. The `post()` and `defer()` functions schedule the function to run on an unspecified system thread pool, and `dispatch()` invokes the function immediately.

##### Requirements

Header: `asio/system_executor.hpp`

Convenience header: `asio.hpp`