| … | |
… | |
| 432 | When you expect a lot of signals (e.g. when using SIGIO), then enabling |
432 | When you expect a lot of signals (e.g. when using SIGIO), then enabling |
| 433 | signal hysteresis can reduce the number of handler invocations |
433 | signal hysteresis can reduce the number of handler invocations |
| 434 | considerably, at the cost of two extra syscalls. |
434 | considerably, at the cost of two extra syscalls. |
| 435 | |
435 | |
| 436 | Note that setting the signal to C<SIG_IGN> can have unintended side |
436 | Note that setting the signal to C<SIG_IGN> can have unintended side |
| 437 | effects when you fork and exec other programs, as often they do nto expect |
437 | effects when you fork and exec other programs, as often they do not expect |
| 438 | signals to be ignored by default. |
438 | signals to be ignored by default. |
| 439 | |
439 | |
| 440 | =item $async->block |
440 | =item $async->block |
| 441 | |
441 | |
| 442 | =item $async->unblock |
442 | =item $async->unblock |
