[openbeos] non-present-posix-functions
- From: janvanhoye@xxxxxxxxxx
- To: openbeos@xxxxxxxxxxxxx
- Date: Wed, 14 Jan 2004 14:25:02 +0000
Hi!
I am busy with a command line application for the preferences team. To create
certain applications, I use code from (Open/Net)BSD. The problem i sometimes
have, is that some posix functions are not present in some (Open)BeOs header
files.
Example:
I port 'date' from NetBSD to OBOS. And I see that 'settimeofday' could not be
found. When I look into 'sys/time.h' I see the function 'gettimeofday' and not
'settimeofday'. This is a problem. What I could do is import 'os/kernel/Os.h'
and use the function 'set_real_time_clock'. But this makes it non posix
compliant.
My questions are: What do I have to do if some posix functions are not present
in the posix headerfiles of OBOS? Are we going to make OBOS more posix
compliant then BeOs and implement those posix functions that are not present.
Is there someone that can give me an good explanation of what has to be done
when a posix function is not present in a posix header-file?
If there is no clear way of programming those non-present-posix-functions, I
would suggest the following:
We could create a c-file and a header-file that contain wrapper functions that
replace the non-present-posix-functions but with the same name.
Example:
nonpresposfunc.h
#include <os/kernel/OS.h>
--> static int settimeofday(param1,param2);
nonpresposfunc.c
--> settimeofdate(param1,param2){ set_real_time_clock (param1,param2);}
All non-present-posix-functions could be implemented as wrapper functions in
that extra file(nonprespsfunc.c). When a developer want to port an application
he can import the header-file(nonprespsfunc.h). If there is still a posix
function that is not present, the developer can implement that function in the
extra file(nonprespsfunc.c).
This way of working could create less redundance, and bug-fixing should only be
done at 1 place and the system would be more posix compliant. In time it should
then be easier to port a certain (commandline) application. I hope you
understand what I mean. So, please give me feedback ;)
thx
Jixt
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