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1 | =encoding utf-8 |
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2 | |
| 1 | =head1 NAME |
3 | =head1 NAME |
| 2 | |
4 | |
| 3 | libev - a high performance full-featured event loop written in C |
5 | libev - a high performance full-featured event loop written in C |
| 4 | |
6 | |
| 5 | =head1 SYNOPSIS |
7 | =head1 SYNOPSIS |
| … | |
… | |
| 2411 | only within the same loop, i.e. you can watch for C<SIGINT> in your |
2413 | only within the same loop, i.e. you can watch for C<SIGINT> in your |
| 2412 | default loop and for C<SIGIO> in another loop, but you cannot watch for |
2414 | default loop and for C<SIGIO> in another loop, but you cannot watch for |
| 2413 | C<SIGINT> in both the default loop and another loop at the same time. At |
2415 | C<SIGINT> in both the default loop and another loop at the same time. At |
| 2414 | the moment, C<SIGCHLD> is permanently tied to the default loop. |
2416 | the moment, C<SIGCHLD> is permanently tied to the default loop. |
| 2415 | |
2417 | |
| 2416 | When the first watcher gets started will libev actually register something |
2418 | Only after the first watcher for a signal is started will libev actually |
| 2417 | with the kernel (thus it coexists with your own signal handlers as long as |
2419 | register something with the kernel. It thus coexists with your own signal |
| 2418 | you don't register any with libev for the same signal). |
2420 | handlers as long as you don't register any with libev for the same signal. |
| 2419 | |
2421 | |
| 2420 | If possible and supported, libev will install its handlers with |
2422 | If possible and supported, libev will install its handlers with |
| 2421 | C<SA_RESTART> (or equivalent) behaviour enabled, so system calls should |
2423 | C<SA_RESTART> (or equivalent) behaviour enabled, so system calls should |
| 2422 | not be unduly interrupted. If you have a problem with system calls getting |
2424 | not be unduly interrupted. If you have a problem with system calls getting |
| 2423 | interrupted by signals you can block all signals in an C<ev_check> watcher |
2425 | interrupted by signals you can block all signals in an C<ev_check> watcher |
