Router should not log signals (during select()) as warnings

[Bill Erickson]

Currently, messages like this are generated by the router as warnings.

2014-02-21 12:25:13 scrapple router: [WARN:5883:osrf_router.c:223:] Top level select call interrupted by signal
2014-02-21 12:25:13 scrapple router: [WARN:5883:osrf_router_main.c:157:] Interrupted by signal 15; re-raising

These signals are normal and usually indicate the router is shutting down, so they should not be logged as warnings.

Branch in progress...

[Bill Erickson (berick)]

Code:

http://git.evergreen-ils.org/?p=working/OpenSRF.git;a=shortlog;h=refs/heads/user/berick/lp1284137-router-shutdown-signal-logging

The logs now read:

2014-02-24 09:26:16 scrapple router: [INFO:24050:osrf_router.c:223:] Router shutting down

2014-02-24 09:26:16 scrapple router: [DEBG:24050:osrf_router_main.c:157:] Router received signal 15; re-raising

Note if the signal received in router_main is not a shutdown signal, it will be logged as a WARNing within the router, so we're not losing information.

[Galen Charlton (gmc)]

Pushed to master and rel_2_3. Thanks, Bill!