sigar/exp/sizeof.c

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/*
#!perl -l
use Config;
my $prg = "$0.out";
my $cmd = "$Config{cc} -Wall -D$^O -o $prg $0; ./$prg; rm $prg";
print $cmd; system $cmd;
__END__
*/
#include <stdio.h>
#include <stdlib.h>
typedef struct {
const char *name;
unsigned int size;
} sizeof_info_t;
#define SIZEOF_INFO(v) \
{#v, sizeof(v)}
#ifdef solaris
#include <sys/kstat.h>
#include <sys/sysinfo.h>
#include <procfs.h>
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#include <sys/proc.h>
#include <sys/user.h>
static sizeof_info_t sizeof_info[] = {
/* kstat */
SIZEOF_INFO(kstat_named_t),
SIZEOF_INFO(vminfo_t),
SIZEOF_INFO(cpu_stat_t),
/* procfs */
SIZEOF_INFO(psinfo_t),
SIZEOF_INFO(prusage_t),
SIZEOF_INFO(prcred_t),
SIZEOF_INFO(pstatus_t),
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SIZEOF_INFO(struct proc),
SIZEOF_INFO(struct user),
{NULL, 0}
};
#endif
#ifdef hpux
#include <sys/pstat.h>
#include <mntent.h>
#include <sys/vfs.h>
#include <sys/mib.h>
static sizeof_info_t sizeof_info[] = {
SIZEOF_INFO(struct pst_static),
SIZEOF_INFO(struct pst_status),
SIZEOF_INFO(struct pst_dynamic),
SIZEOF_INFO(struct pst_swapinfo),
SIZEOF_INFO(struct mntent),
SIZEOF_INFO(struct statfs),
SIZEOF_INFO(struct nmparms),
SIZEOF_INFO(mib_ifEntry),
SIZEOF_INFO(mib_ipRouteEnt),
{NULL, 0}
};
#endif
static void print_sizeof_info(sizeof_info_t *info)
{
while (info->name) {
printf("sizeof(%s) == %d\n", info->name, info->size);
++info;
}
}
int main(void) {
system("uname -a");
print_sizeof_info(sizeof_info);
return 0;
}