Am 09.08.2011 um 01:23 schrieb kevin.buck...@ecs.vuw.ac.nz:
>> Fine, but I'm not sure whether I suggested a suitable solution or only a
>> workaround which introduces a new bug: a real set limit of zero can't be
>> ouptut any longer. Well, a real limit for h_vmem or h_rt being 0 isn't
>> reasonable at all...
>>
>> You would have to test against 0 and output 0 as a string in this case to
>> get the correct output.
>>
>> I think the original author tried to avoid several if-then-else tests
>> there, but maybe such an implementation is the only one being correct.
>>
>> -- Reuti
>
> You mean something like this, which does away with the macros
> altogether.
>
> ------8<-------------8<-------------8<-------------8<-------------8<-------
> #include <stdio.h>
> #include <string.h>
> #include <stdlib.h>
> #include <errno.h>
>
> #if defined(DARWIN) || defined(FREEBSD) || defined(NETBSD)
> # include <sys/time.h>
> #endif
>
> #if defined(CRAY)
> # include <sys/param.h>
> # include <sys/unistd.h>
> # include <sys/category.h>
> #endif
>
> #include <sys/resource.h>
>
> #if defined(IRIX)
> # define RLIMIT_STRUCT_TAG rlimit64
> # define RLIMIT_INFINITY RLIM64_INFINITY
> #else
> # define RLIMIT_STRUCT_TAG rlimit
> # define RLIMIT_INFINITY RLIM_INFINITY
> #endif
>
> int main( void ) {
>
> /* int resource = RLIMIT_CORE ; */
> int resource = RLIMIT_FSIZE ;
>
> char trace_str[1024];
> char trace_str2[1024];
>
> #if defined(NECSX4) || defined(NECSX5) || defined(NETBSD_ALPHA) ||
> defined(NETBSD_X86_64) || defined(NETBSD_SPARC64)
> char *limit_fmt = "%ld" ;
> #elif defined(IRIX) || defined(HPUX) || defined(DARWIN) ||
> defined(FREEBSD) || defined(NETBSD) || defined(INTERIX)
> char *limit_fmt = "%lld" ;
> #elif (defined(LINUX) && defined(TARGET_32BIT))
> char *limit_fmt = "%llu";
> #elif defined(ALPHA) || defined(SOLARIS) || defined(LINUX)
> char *limit_fmt = "%lu" ;
> #else
> char *limit_fmt = "%d" ;
> #endif
>
> struct RLIMIT_STRUCT_TAG dlp;
>
> #if defined(IRIX)
> getrlimit64(resource,&dlp);
> #else
> getrlimit(resource,&dlp);
> #endif
>
> dlp.rlim_max = RLIMIT_INFINITY ;
>
> strcpy(trace_str, "soft ") ;
> if( dlp.rlim_cur == RLIMIT_INFINITY ) {
> sprintf(trace_str2, "%sINFINITY", trace_str ) ;
Yeah, exactly. But although it's tricky to use two buffers trace_str and
trace_str2 for alternating assignments, I would suggest to use only one for the
final string.
strcat(trace_str, "INFINITY");
> }
> else {
> strcat(trace_str, limit_fmt) ;
> sprintf(trace_str2, trace_str, dlp.rlim_cur ) ;
sprintf(&trace_str[strlen(trace_str)], limit_fmt, dlp.rlim_cur);
Maybe Dave can make a statement what he prefers putting into the repository.
-- Reuti
> }
>
> strcat(trace_str2, " hard ") ;
> if( dlp.rlim_max == RLIMIT_INFINITY ) {
> sprintf(trace_str, "%sINFINITY", trace_str2 ) ;
> }
> else {
> strcat(trace_str2, limit_fmt) ;
> sprintf(trace_str, trace_str2, dlp.rlim_max ) ;
> }
> printf( "%s\n", trace_str );
>
> return(0);
>
> }
> ------8<-------------8<-------------8<-------------8<-------------8<-------
>
> and just keep adding parts of the string required for the
> shepherd trace, whilst swapping trace_str and trace_str2.
>
> Either that or steal the formatting code from some shell's
> ulimit builtin?
>
> --
> Kevin M. Buckley Room: CO327
> School of Engineering and Phone: +64 4 463 5971
> Computer Science
> Victoria University of Wellington
> New Zealand
>
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