[Feature Request]: pyOCD: Refactor STDIO (used by semihosting and SWO) to avoid blocking console reads

[DavidLesnjak]

Description

run and gdbserver now route semihosting and SWO through StdioHandler. Stdin from the console can still block and prevent clean shutdown or responsive I/O handling. Improve stdio handling by making console stdin non-blocking (poll/queue-based) so reading the input never stalls the main loop and remains consistent across platforms.

Is this request a Security Requirement?

• Yes

Priority

Medium

Related Issues (Optional)

No response

Additional Notes (Optional)

No response