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Revision 1.23 by root, Mon Nov 12 18:40:21 2007 UTC vs.
Revision 1.24 by root, Mon Nov 12 19:20:05 2007 UTC

… …
425required if you know what you are doing). 425required if you know what you are doing).
426 426
427You have to be careful with dup'ed file descriptors, though. Some backends 427You have to be careful with dup'ed file descriptors, though. Some backends
428(the linux epoll backend is a notable example) cannot handle dup'ed file 428(the linux epoll backend is a notable example) cannot handle dup'ed file
429descriptors correctly if you register interest in two or more fds pointing 429descriptors correctly if you register interest in two or more fds pointing
430to the same file/socket etc. description (that is, they share the same 430to the same underlying file/socket etc. description (that is, they share
431underlying "file open"). 431the same underlying "file open").
432 432
433If you must do this, then force the use of a known-to-be-good backend 433If you must do this, then force the use of a known-to-be-good backend
434(at the time of this writing, this includes only EVMETHOD_SELECT and 434(at the time of this writing, this includes only EVMETHOD_SELECT and
435EVMETHOD_POLL). 435EVMETHOD_POLL).
436 436
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772 772
773=back 773=back
774 774
775=head1 LIBEVENT EMULATION 775=head1 LIBEVENT EMULATION
776 776
777Libev offers a compatibility emulation layer for libevent. It cannot
778emulate the internals of libevent, so here are some usage hints:
779
780=over 4
781
782=item * Use it by including <event.h>, as usual.
783
784=item * The following members are fully supported: ev_base, ev_callback,
785ev_arg, ev_fd, ev_res, ev_events.
786
787=item * Avoid using ev_flags and the EVLIST_*-macros, while it is
788maintained by libev, it does not work exactly the same way as in libevent (consider
789it a private API).
790
791=item * Priorities are not currently supported. Initialising priorities
792will fail and all watchers will have the same priority, even though there
793is an ev_pri field.
794
795=item * Other members are not supported.
796
797=item * The libev emulation is I<not> ABI compatible to libevent, you need
798to use the libev header file and library.
799
800=back
801
802=head1 C++ SUPPORT
803
777TBD. 804TBD.
778 805
779=head1 C++ SUPPORT
780
781TBD.
782
783=head1 AUTHOR 806=head1 AUTHOR
784 807
785Marc Lehmann <libev@schmorp.de>. 808Marc Lehmann <libev@schmorp.de>.
786 809

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