threez/ruby-vmstat

#if defined(HAVE_STATFS) && (defined(HAVE_STRUCT_STATFS_F_TYPE) || defined(HAVE_STRUCT_STATFS_F_FSTYPENAME))
#include <vmstat.h>
#include <sys/param.h>
#include <sys/mount.h>

// on linux require statfs too
#if defined(HAVE_SYS_STATFS_H)
#include <sys/statfs.h>
#endif

#ifndef VMSTAT_DISK
#define VMSTAT_DISK
VALUE vmstat_disk(VALUE self, VALUE path) {
  VALUE disk = Qnil;
  struct statfs stat;

  if (statfs(StringValueCStr(path), &stat) != -1) {
#if defined(HAVE_SYS_STATFS_H)
    disk = rb_funcall(rb_path2class("Vmstat::LinuxDisk"),
           rb_intern("new"), 6, ULL2NUM(stat.f_type),
                                path,
                                ULL2NUM(stat.f_bsize),
                                ULL2NUM(stat.f_bfree),
                                ULL2NUM(stat.f_bavail),
                                ULL2NUM(stat.f_blocks));
#else
    disk = rb_funcall(rb_path2class("Vmstat::Disk"),
           rb_intern("new"), 7, ID2SYM(rb_intern(stat.f_fstypename)),
                                rb_str_new(stat.f_mntfromname, strlen(stat.f_mntfromname)),
                                rb_str_new(stat.f_mntonname, strlen(stat.f_mntonname)),
                                ULL2NUM(stat.f_bsize),
                                ULL2NUM(stat.f_bfree),
                                ULL2NUM(stat.f_bavail),
                                ULL2NUM(stat.f_blocks));
#endif
  }

  return disk;
}
#endif
#endif

#if defined(HAVE_STATVFS) && defined(HAVE_STRUCT_STATVFS_F_BASETYPE)
#include <vmstat.h>
#include <sys/types.h>
#include <sys/statvfs.h>

#ifndef VMSTAT_DISK
#define VMSTAT_DISK
VALUE vmstat_disk(VALUE self, VALUE path) {
  VALUE disk = Qnil;
  struct statvfs stat;

  if (statvfs(StringValueCStr(path), &stat) == 0) {
    disk = rb_funcall(rb_path2class("Vmstat::LinuxDisk"),
           rb_intern("new"), 6, ID2SYM(rb_intern(stat.f_basetype)),
                                path,
                                ULL2NUM(stat.f_bsize),
                                ULL2NUM(stat.f_bfree),
                                ULL2NUM(stat.f_bavail),
                                ULL2NUM(stat.f_blocks));
  }

  return disk;
}
#endif
#endif