Jan Kiszka wrote:
> Gilles Chanteperdrix wrote:
>> Steve wrote:
>>> First, thank you for the help on my previous query.
>>>
>>> I am still working on porting a c++ application from RTAI to Xenomai,
>>> and have encountered a problem with sockets, specifically the select
>>> function.
>>>
>>> When Xenomai is not being used the code runs as expected. Once the
>>> Xenomai headers, compile options, etc, are used the select function
>>> fails with the error EFAULT. I have reproduced the error (works
>>> without Xenomai, EFAULTs with Xenomai) using the following program:
>>>
>>> #include <stdio.h>
>>> #include <arpa/inet.h>
>>> #include <errno.h>
>>>
>>> int handleError(char *msg, int err);
>>>
>>> int main(void)
>>> {
>>> int sfd;
>>> struct sockaddr_in sai;
>>> fd_set SockSet;
>>> struct timeval tv;
>>> tv.tv_sec = 2;
>>> tv.tv_usec = 0;
>>>
>>> sai.sin_family = AF_INET;
>>> sai.sin_port = htons(1025);
>>> sai.sin_addr.s_addr = htonl(INADDR_ANY);
>>>
>>> if((sfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
>>> { return handleError("creation error", errno); }
>>>
>>> if(bind(sfd, (struct sockaddr*)&sai, sizeof(sai)) == -1)
>>> { return handleError("bind error", errno); }
>>>
>>> if(listen(sfd, 5) == -1)
>>> { return handleError("listen error", errno); }
>>>
>>> FD_ZERO(&SockSet);
>>> FD_SET(sfd, &SockSet);
>>>
>>> if(select(sfd+1, &SockSet, 0, 0, &tv) == -1)
>>> { return handleError("select error", errno); }
>>>
>>> printf("success\n");
>>>
>>> return 0;
>>> }
>>>
>>> I am using Xenomai 2.4.6.1 on a vanilla 2.6.24.6 Linux kernel, and
>>> running on Ubuntu 8.04.
>> Could you try 2.4.7, to see if you are not having a bug which has
>> already been fixed?
>>
>> What you are trying should work, even though you are not really using
>> Xenomai's select but Linux plain select.
>
> This should have been fixed in 2.4.x.git - if my patch were applied. See
> git://git.xenomai.org/xenomai-jki.git for-2.4.x
>
> Did I missed to post some correction of that version, or what delays
> this? Sorry, lost track of it.
Sorry, I do not see what patch you are refering to. Is it:
http://git.xenomai.org/?p=xenomai-jki.git;a=commitdiff;h=86333965a4362f8439822ec9d22b0a84b5701141;hp=a219c4a71b381f4662df45bac5508c3ae64ab924
In this commit, I only see things which should return more -EFAULT. Or
did I miss something?
--
Gilles.
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