Re: Nsock-engines merged

[David Fifield <david () bamsoftware com>]

On Thu, Jan 05, 2012 at 02:11:51AM +0100, Henri Doreau wrote:
> Hello,
>
> I have just merged the nsock-engine branch (see r27776). As explained
> in the presentation email[1], this is a rewrite of nsock aiming to
> leverage efficient and scalable IO notification facilities, like
> epoll, poll, kqueue/kevent... which are OS-specific, while preserving
> portability.
>
> For simplicity sake, the current version only provides epoll(7) and
> select(2) based engines. So only Linux systems that provide epoll(7)
> should benefit scalability improvements for now. More engines to come.
>
> The aims were achieved by adding several independent modules (the
> actual engines) to the core of the library. Each one uses a given
> syscall and exports a clearly defined API to the rest of the library.
> Only the engines compatible with your system are compiled. The most
> efficient engine available is chosen at runtime. Implementation notes
> and a couple benchmark results are available[2].
>
> The external API of nsock remains absolutely identical and the
> behaviour should also be unchanged.
>
> The branch was extensively tested under numerous platforms but
> additional testing would be much appreciated indeed.

I am getting this error with CentOS 5.7, kernel 2.6.18, Glibc 2.5.

Compiling libnsock
cd nsock/src && make
make[1]: Entering directory `/home/david/nmap/nsock/src'
gcc -c -I../../nbase -DHAVE_CONFIG_H -DNSOCK_VERSION=\"0.02\" -D_FORTIFY_SOURCE=2 -I../include -I../../libpcap -g -O2 
-Wall -fno-strict-aliasing  -Wall   engine_epoll.c -o engine_epoll.o
engine_epoll.c: In function ‘epoll_iod_register’:
engine_epoll.c:170: error: ‘EPOLLRDHUP’ undeclared (first use in this function)
engine_epoll.c:170: error: (Each undeclared identifier is reported only once
engine_epoll.c:170: error: for each function it appears in.)
engine_epoll.c: In function ‘epoll_iod_modify’:
engine_epoll.c:223: error: ‘EPOLLRDHUP’ undeclared (first use in this function)
engine_epoll.c: In function ‘iterate_through_event_lists’:
engine_epoll.c:337: error: ‘EPOLLRDHUP’ undeclared (first use in this function)
make[1]: *** [engine_epoll.o] Error 1
make[1]: Leaving directory `/home/david/nmap/nsock/src'
make: *** [nsock_build] Error 2

David Fifield
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