libnjb: getusage.c

libnjb 2.2.7

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getusage.c
#include "common.h"
int main (int argc, char **argv)
{
njb_t njbs[NJB_MAX_DEVICES];
njb_t *njb;
int n, opt, debug;
extern char *optarg;
u_int64_t total;
u_int64_t free;
debug = 0;
while ( (opt = getopt(argc, argv, "D:")) != -1 ) {
switch (opt) {
case 'D':
debug = atoi(optarg);
break;
default:
fprintf(stderr, "usage: handshake [ -D debuglvl ]\n");
return 1;
}
}
if ( debug ) NJB_Set_Debug(debug);
if (NJB_Discover(njbs, 0, &n) == -1) {
fprintf(stderr, "could not locate any jukeboxes\n");
return 1;
}
if ( n == 0 ) {
fprintf(stderr, "no NJB devices found\n");
return 0;
}
njb = &njbs[0];
if ( NJB_Open(njb) == -1 ) {
NJB_Error_Dump(njb,stderr);
return 1;
}
if (NJB_Get_Disk_Usage(njb, &total, &free) == -1) {
NJB_Error_Dump(njb,stderr);
return 1;
}
#ifdef __WIN32__
printf("Total bytes on jukebox: %I64u (%I64u MB)\n",
total, total/(1024*1024));
printf("Free bytes on jukebox: %I64u (%I64u MB)\n",
free, free/(1024*1024));
#else
printf("Total bytes on jukebox: %llu (%llu MB)\n",
total, total/(1024*1024));
printf("Free bytes on jukebox: %llu (%llu MB)\n",
free, free/(1024*1024));
#endif
NJB_Close(njb);
return 0;
}