在升压计时器上阻塞 wait()

Question

The documentation says :

This function is used to wait for the timer to expire. This function blocks and does not return until the timer has expired.

Does this block the whole I/O processing similar to a sleep or does the asynchronous I/O still work? In other words: If I have asynchronous I/O or other timers running on the same io_service, do they block until the wait is over, or do they get called while the process is wait ing?

Answer 1

The thread that you call wait on will be blocked but if you have other threads they should continue executing.

Note that if you are using strands then if you call wait from within a strand no other executors will run for that strand even if other threads are available.