diff options
Diffstat (limited to 'ev.pod')
| -rw-r--r-- | ev.pod | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -594,11 +594,15 @@ specification in all tests and is fully embeddable, which is a rare feat among the OS-specific backends (I vastly prefer correctness over speed hacks). -On the negative side, the interface is I<bizarre>, with the event polling +On the negative side, the interface is I<bizarre> - so bizarre that +even sun itself gets it wrong in their code examples: The event polling function sometimes returning events to the caller even though an error occured, but with no indication whether it has done so or not (yes, it's -even documented that way) - deadly for edge-triggered interfaces, but -fortunately libev seems to be able to work around it. +even documented that way) - deadly for edge-triggered interfaces where +you absolutely have to know whether an event occured or not because you +have to re-arm the watcher. + +Fortunately libev seems to be able to work around these idiocies. This backend maps C<EV_READ> and C<EV_WRITE> in the same way as C<EVBACKEND_POLL>. |