Is given file stored on a RAM based file system ?

is_file_on_ram.c

bool is_file_on_ram(const char *path)
{
#ifdef HAVE_STATFS

# ifdef BSD
#  include <sys/param.h>
#  include <sys/mount.h>
# else
#  include <sys/vfs.h>
#  include <linux/magic.h>
# endif
# include <errno.h>

    struct statfs buf;

    if (0 == statfs(path, &buf))) {
# ifdef BSD
        return 0 == strcmp(buf.f_fstypename, "tmp");
# else
        return TMPFS_MAGIC == buf.f_type;
# endif
    } else {
        //fprintf(stderr, "statfs failed: %s\n", strerror(errno));
        return FALSE; /* statfs failed */
    }

#else

    return FALSE;

#endif

}