cconv.c

   1 #include <string.h>
   2
   3 #include "thread_options.h"
   4
   5 static void string_to_cpu(char **dst, const uint8_t *src)
   6 {
   7         const char *__src = (const char *) src;
   8
   9         if (strlen(__src))
  10                 *dst = strdup(__src);
  11 }
  12
  13 static void string_to_net(uint8_t *dst, const char *src)
  14 {
  15         if (src)
  16                 strcpy((char *) dst, src);
  17         else
  18                 dst[0] = '\0';
  19 }
  20
  21 void convert_thread_options_to_cpu(struct thread_options *o,
  22                                    struct thread_options_pack *top)
  23 {
  24         int i, j;
  25
  26         string_to_cpu(&o->description, top->description);
  27         string_to_cpu(&o->name, top->name);
  28         string_to_cpu(&o->directory, top->directory);
  29         string_to_cpu(&o->filename, top->filename);
  30         string_to_cpu(&o->opendir, top->opendir);
  31         string_to_cpu(&o->ioengine, top->ioengine);
  32         string_to_cpu(&o->read_iolog_file, top->read_iolog_file);
  33         string_to_cpu(&o->write_iolog_file, top->write_iolog_file);
  34         string_to_cpu(&o->bw_log_file, top->bw_log_file);
  35         string_to_cpu(&o->lat_log_file, top->lat_log_file);
  36         string_to_cpu(&o->iops_log_file, top->iops_log_file);
  37         string_to_cpu(&o->replay_redirect, top->replay_redirect);
  38         string_to_cpu(&o->exec_prerun, top->exec_prerun);
  39         string_to_cpu(&o->exec_postrun, top->exec_postrun);
  40         string_to_cpu(&o->ioscheduler, top->ioscheduler);
  41         string_to_cpu(&o->profile, top->profile);
  42         string_to_cpu(&o->cgroup, top->cgroup);
  43
  44         o->td_ddir = le32_to_cpu(top->td_ddir);
  45         o->rw_seq = le32_to_cpu(top->rw_seq);
  46         o->kb_base = le32_to_cpu(top->kb_base);
  47         o->ddir_seq_nr = le32_to_cpu(top->ddir_seq_nr);
  48         o->ddir_seq_add = le64_to_cpu(top->ddir_seq_add);
  49         o->iodepth = le32_to_cpu(top->iodepth);
  50         o->iodepth_low = le32_to_cpu(top->iodepth_low);
  51         o->iodepth_batch = le32_to_cpu(top->iodepth_batch);
  52         o->iodepth_batch_complete = le32_to_cpu(top->iodepth_batch_complete);
  53         o->size = le64_to_cpu(top->size);
  54         o->size_percent = le32_to_cpu(top->size_percent);
  55         o->fill_device = le32_to_cpu(top->fill_device);
  56         o->file_size_low = le64_to_cpu(top->file_size_low);
  57         o->file_size_high = le64_to_cpu(top->file_size_high);
  58         o->start_offset = le64_to_cpu(top->start_offset);
  59
  60         for (i = 0; i < 2; i++) {
  61                 o->bs[i] = le32_to_cpu(top->bs[i]);
  62                 o->ba[i] = le32_to_cpu(top->ba[i]);
  63                 o->min_bs[i] = le32_to_cpu(top->min_bs[i]);
  64                 o->max_bs[i] = le32_to_cpu(top->max_bs[i]);
  65                 o->bssplit_nr[i] = le32_to_cpu(top->bssplit_nr[i]);
  66
  67                 if (o->bssplit_nr[i]) {
  68                         o->bssplit[i] = malloc(o->bssplit_nr[i] * sizeof(struct bssplit));
  69                         for (j = 0; j < o->bssplit_nr[i]; j++) {
  70                                 o->bssplit[i][j].bs = le32_to_cpu(top->bssplit[i][j].bs);
  71                                 o->bssplit[i][j].perc = le32_to_cpu(top->bssplit[i][j].perc);
  72                         }
  73                 }
  74
  75                 o->rwmix[i] = le32_to_cpu(top->rwmix[i]);
  76                 o->rate[i] = le32_to_cpu(top->rate[i]);
  77                 o->ratemin[i] = le32_to_cpu(top->ratemin[i]);
  78                 o->rate_iops[i] = le32_to_cpu(top->rate_iops[i]);
  79                 o->rate_iops_min[i] = le32_to_cpu(top->rate_iops_min[i]);
  80         }
  81
  82         o->ratecycle = le32_to_cpu(top->ratecycle);
  83         o->nr_files = le32_to_cpu(top->nr_files);
  84         o->open_files = le32_to_cpu(top->open_files);
  85         o->file_lock_mode = le32_to_cpu(top->file_lock_mode);
  86         o->lockfile_batch = le32_to_cpu(top->lockfile_batch);
  87         o->odirect = le32_to_cpu(top->odirect);
  88         o->invalidate_cache = le32_to_cpu(top->invalidate_cache);
  89         o->create_serialize = le32_to_cpu(top->create_serialize);
  90         o->create_fsync = le32_to_cpu(top->create_fsync);
  91         o->create_on_open = le32_to_cpu(top->create_on_open);
  92         o->end_fsync = le32_to_cpu(top->end_fsync);
  93         o->pre_read = le32_to_cpu(top->pre_read);
  94         o->sync_io = le32_to_cpu(top->sync_io);
  95         o->verify = le32_to_cpu(top->verify);
  96         o->do_verify = le32_to_cpu(top->do_verify);
  97         o->verifysort = le32_to_cpu(top->verifysort);
  98         o->verify_interval = le32_to_cpu(top->verify_interval);
  99         o->verify_offset = le32_to_cpu(top->verify_offset);
 100
 101         memcpy(o->verify_pattern, top->verify_pattern, MAX_PATTERN_SIZE);
 102
 103         o->verify_pattern_bytes = le32_to_cpu(top->verify_pattern_bytes);
 104         o->verify_fatal = le32_to_cpu(top->verify_fatal);
 105         o->verify_dump = le32_to_cpu(top->verify_dump);
 106         o->verify_async = le32_to_cpu(top->verify_async);
 107         o->verify_batch = le32_to_cpu(top->verify_batch);
 108         o->use_thread = le32_to_cpu(top->use_thread);
 109         o->unlink = le32_to_cpu(top->unlink);
 110         o->do_disk_util = le32_to_cpu(top->do_disk_util);
 111         o->override_sync = le32_to_cpu(top->override_sync);
 112         o->rand_repeatable = le32_to_cpu(top->rand_repeatable);
 113         o->use_os_rand = le32_to_cpu(top->use_os_rand);
 114         o->write_lat_log = le32_to_cpu(top->write_lat_log);
 115         o->write_bw_log = le32_to_cpu(top->write_bw_log);
 116         o->write_iops_log = le32_to_cpu(top->write_iops_log);
 117         o->log_avg_msec = le32_to_cpu(top->log_avg_msec);
 118         o->norandommap = le32_to_cpu(top->norandommap);
 119         o->softrandommap = le32_to_cpu(top->softrandommap);
 120         o->bs_unaligned = le32_to_cpu(top->bs_unaligned);
 121         o->fsync_on_close = le32_to_cpu(top->fsync_on_close);
 122         o->hugepage_size = le32_to_cpu(top->hugepage_size);
 123         o->rw_min_bs = le32_to_cpu(top->rw_min_bs);
 124         o->thinktime = le32_to_cpu(top->thinktime);
 125         o->thinktime_spin = le32_to_cpu(top->thinktime_spin);
 126         o->thinktime_blocks = le32_to_cpu(top->thinktime_blocks);
 127         o->fsync_blocks = le32_to_cpu(top->fsync_blocks);
 128         o->fdatasync_blocks = le32_to_cpu(top->fdatasync_blocks);
 129         o->barrier_blocks = le32_to_cpu(top->barrier_blocks);
 130
 131         o->verify_backlog = le64_to_cpu(top->verify_backlog);
 132         o->start_delay = le64_to_cpu(top->start_delay);
 133         o->timeout = le64_to_cpu(top->timeout);
 134         o->ramp_time = le64_to_cpu(top->ramp_time);
 135         o->zone_range = le64_to_cpu(top->zone_range);
 136         o->zone_size = le64_to_cpu(top->zone_size);
 137         o->zone_skip = le64_to_cpu(top->zone_skip);
 138         o->offset_increment = le64_to_cpu(top->offset_increment);
 139
 140         o->overwrite = le32_to_cpu(top->overwrite);
 141         o->bw_avg_time = le32_to_cpu(top->bw_avg_time);
 142         o->iops_avg_time = le32_to_cpu(top->iops_avg_time);
 143         o->loops = le32_to_cpu(top->loops);
 144         o->mem_type = le32_to_cpu(top->mem_type);
 145         o->mem_align = le32_to_cpu(top->mem_align);
 146         o->stonewall = le32_to_cpu(top->stonewall);
 147         o->new_group = le32_to_cpu(top->new_group);
 148         o->numjobs = le32_to_cpu(top->numjobs);
 149         o->cpumask_set = le32_to_cpu(top->cpumask_set);
 150         o->verify_cpumask_set = le32_to_cpu(top->verify_cpumask_set);
 151         o->iolog = le32_to_cpu(top->iolog);
 152         o->rwmixcycle = le32_to_cpu(top->rwmixcycle);
 153         o->nice = le32_to_cpu(top->nice);
 154         o->file_service_type = le32_to_cpu(top->file_service_type);
 155         o->group_reporting = le32_to_cpu(top->group_reporting);
 156         o->fadvise_hint = le32_to_cpu(top->fadvise_hint);
 157         o->fallocate_mode = le32_to_cpu(top->fallocate_mode);
 158         o->zero_buffers = le32_to_cpu(top->zero_buffers);
 159         o->refill_buffers = le32_to_cpu(top->refill_buffers);
 160         o->scramble_buffers = le32_to_cpu(top->scramble_buffers);
 161         o->time_based = le32_to_cpu(top->time_based);
 162         o->disable_lat = le32_to_cpu(top->disable_lat);
 163         o->disable_clat = le32_to_cpu(top->disable_clat);
 164         o->disable_slat = le32_to_cpu(top->disable_slat);
 165         o->disable_bw = le32_to_cpu(top->disable_bw);
 166         o->gtod_reduce = le32_to_cpu(top->gtod_reduce);
 167         o->gtod_cpu = le32_to_cpu(top->gtod_cpu);
 168         o->gtod_offload = le32_to_cpu(top->gtod_offload);
 169         o->clocksource = le32_to_cpu(top->clocksource);
 170         o->no_stall = le32_to_cpu(top->no_stall);
 171         o->trim_percentage = le32_to_cpu(top->trim_percentage);
 172         o->trim_batch = le32_to_cpu(top->trim_batch);
 173         o->trim_zero = le32_to_cpu(top->trim_zero);
 174         o->clat_percentiles = le32_to_cpu(top->clat_percentiles);
 175         o->overwrite_plist = le32_to_cpu(top->overwrite_plist);
 176         o->cpuload = le32_to_cpu(top->cpuload);
 177         o->cpucycle = le32_to_cpu(top->cpucycle);
 178         o->continue_on_error = le32_to_cpu(top->continue_on_error);
 179         o->cgroup_weight = le32_to_cpu(top->cgroup_weight);
 180         o->cgroup_nodelete = le32_to_cpu(top->cgroup_nodelete);
 181         o->uid = le32_to_cpu(top->uid);
 182         o->gid = le32_to_cpu(top->gid);
 183         o->flow_id = __le32_to_cpu(top->flow_id);
 184         o->flow = __le32_to_cpu(top->flow);
 185         o->flow_watermark = __le32_to_cpu(top->flow_watermark);
 186         o->flow_sleep = le32_to_cpu(top->flow_sleep);
 187         o->sync_file_range = le32_to_cpu(top->sync_file_range);
 188         o->compress_percentage = le32_to_cpu(top->compress_percentage);
 189         o->compress_chunk = le32_to_cpu(top->compress_chunk);
 190
 191         o->trim_backlog = le64_to_cpu(top->trim_backlog);
 192
 193         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++)
 194                 o->percentile_list[i].u.f = fio_uint64_to_double(le64_to_cpu(top->percentile_list[i].u.i));
 195 #if 0
 196         uint8_t cpumask[FIO_TOP_STR_MAX];
 197         uint8_t verify_cpumask[FIO_TOP_STR_MAX];
 198 #endif
 199 }
 200
 201 void convert_thread_options_to_net(struct thread_options_pack *top,
 202                                    struct thread_options *o)
 203 {
 204         int i, j;
 205
 206         string_to_net(top->description, o->description);
 207         string_to_net(top->name, o->name);
 208         string_to_net(top->directory, o->directory);
 209         string_to_net(top->filename, o->filename);
 210         string_to_net(top->opendir, o->opendir);
 211         string_to_net(top->ioengine, o->ioengine);
 212         string_to_net(top->read_iolog_file, o->read_iolog_file);
 213         string_to_net(top->write_iolog_file, o->write_iolog_file);
 214         string_to_net(top->bw_log_file, o->bw_log_file);
 215         string_to_net(top->lat_log_file, o->lat_log_file);
 216         string_to_net(top->iops_log_file, o->iops_log_file);
 217         string_to_net(top->replay_redirect, o->replay_redirect);
 218         string_to_net(top->exec_prerun, o->exec_prerun);
 219         string_to_net(top->exec_postrun, o->exec_postrun);
 220         string_to_net(top->ioscheduler, o->ioscheduler);
 221         string_to_net(top->profile, o->profile);
 222         string_to_net(top->cgroup, o->cgroup);
 223
 224         top->td_ddir = cpu_to_le32(o->td_ddir);
 225         top->rw_seq = cpu_to_le32(o->rw_seq);
 226         top->kb_base = cpu_to_le32(o->kb_base);
 227         top->ddir_seq_nr = cpu_to_le32(o->ddir_seq_nr);
 228         top->iodepth = cpu_to_le32(o->iodepth);
 229         top->iodepth_low = cpu_to_le32(o->iodepth_low);
 230         top->iodepth_batch = cpu_to_le32(o->iodepth_batch);
 231         top->iodepth_batch_complete = cpu_to_le32(o->iodepth_batch_complete);
 232         top->size_percent = cpu_to_le32(o->size_percent);
 233         top->fill_device = cpu_to_le32(o->fill_device);
 234         top->ratecycle = cpu_to_le32(o->ratecycle);
 235         top->nr_files = cpu_to_le32(o->nr_files);
 236         top->open_files = cpu_to_le32(o->open_files);
 237         top->file_lock_mode = cpu_to_le32(o->file_lock_mode);
 238         top->lockfile_batch = cpu_to_le32(o->lockfile_batch);
 239         top->odirect = cpu_to_le32(o->odirect);
 240         top->invalidate_cache = cpu_to_le32(o->invalidate_cache);
 241         top->create_serialize = cpu_to_le32(o->create_serialize);
 242         top->create_fsync = cpu_to_le32(o->create_fsync);
 243         top->create_on_open = cpu_to_le32(o->create_on_open);
 244         top->end_fsync = cpu_to_le32(o->end_fsync);
 245         top->pre_read = cpu_to_le32(o->pre_read);
 246         top->sync_io = cpu_to_le32(o->sync_io);
 247         top->verify = cpu_to_le32(o->verify);
 248         top->do_verify = cpu_to_le32(o->do_verify);
 249         top->verifysort = cpu_to_le32(o->verifysort);
 250         top->verify_interval = cpu_to_le32(o->verify_interval);
 251         top->verify_offset = cpu_to_le32(o->verify_offset);
 252         top->verify_pattern_bytes = cpu_to_le32(o->verify_pattern_bytes);
 253         top->verify_fatal = cpu_to_le32(o->verify_fatal);
 254         top->verify_dump = cpu_to_le32(o->verify_dump);
 255         top->verify_async = cpu_to_le32(o->verify_async);
 256         top->verify_batch = cpu_to_le32(o->verify_batch);
 257         top->use_thread = cpu_to_le32(o->use_thread);
 258         top->unlink = cpu_to_le32(o->unlink);
 259         top->do_disk_util = cpu_to_le32(o->do_disk_util);
 260         top->override_sync = cpu_to_le32(o->override_sync);
 261         top->rand_repeatable = cpu_to_le32(o->rand_repeatable);
 262         top->use_os_rand = cpu_to_le32(o->use_os_rand);
 263         top->write_lat_log = cpu_to_le32(o->write_lat_log);
 264         top->write_bw_log = cpu_to_le32(o->write_bw_log);
 265         top->write_iops_log = cpu_to_le32(o->write_iops_log);
 266         top->log_avg_msec = cpu_to_le32(o->log_avg_msec);
 267         top->norandommap = cpu_to_le32(o->norandommap);
 268         top->softrandommap = cpu_to_le32(o->softrandommap);
 269         top->bs_unaligned = cpu_to_le32(o->bs_unaligned);
 270         top->fsync_on_close = cpu_to_le32(o->fsync_on_close);
 271         top->hugepage_size = cpu_to_le32(o->hugepage_size);
 272         top->rw_min_bs = cpu_to_le32(o->rw_min_bs);
 273         top->thinktime = cpu_to_le32(o->thinktime);
 274         top->thinktime_spin = cpu_to_le32(o->thinktime_spin);
 275         top->thinktime_blocks = cpu_to_le32(o->thinktime_blocks);
 276         top->fsync_blocks = cpu_to_le32(o->fsync_blocks);
 277         top->fdatasync_blocks = cpu_to_le32(o->fdatasync_blocks);
 278         top->barrier_blocks = cpu_to_le32(o->barrier_blocks);
 279         top->overwrite = cpu_to_le32(o->overwrite);
 280         top->bw_avg_time = cpu_to_le32(o->bw_avg_time);
 281         top->iops_avg_time = cpu_to_le32(o->iops_avg_time);
 282         top->loops = cpu_to_le32(o->loops);
 283         top->mem_type = cpu_to_le32(o->mem_type);
 284         top->mem_align = cpu_to_le32(o->mem_align);
 285         top->stonewall = cpu_to_le32(o->stonewall);
 286         top->new_group = cpu_to_le32(o->new_group);
 287         top->numjobs = cpu_to_le32(o->numjobs);
 288         top->cpumask_set = cpu_to_le32(o->cpumask_set);
 289         top->verify_cpumask_set = cpu_to_le32(o->verify_cpumask_set);
 290         top->iolog = cpu_to_le32(o->iolog);
 291         top->rwmixcycle = cpu_to_le32(o->rwmixcycle);
 292         top->nice = cpu_to_le32(o->nice);
 293         top->file_service_type = cpu_to_le32(o->file_service_type);
 294         top->group_reporting = cpu_to_le32(o->group_reporting);
 295         top->fadvise_hint = cpu_to_le32(o->fadvise_hint);
 296         top->fallocate_mode = cpu_to_le32(o->fallocate_mode);
 297         top->zero_buffers = cpu_to_le32(o->zero_buffers);
 298         top->refill_buffers = cpu_to_le32(o->refill_buffers);
 299         top->scramble_buffers = cpu_to_le32(o->scramble_buffers);
 300         top->time_based = cpu_to_le32(o->time_based);
 301         top->disable_lat = cpu_to_le32(o->disable_lat);
 302         top->disable_clat = cpu_to_le32(o->disable_clat);
 303         top->disable_slat = cpu_to_le32(o->disable_slat);
 304         top->disable_bw = cpu_to_le32(o->disable_bw);
 305         top->gtod_reduce = cpu_to_le32(o->gtod_reduce);
 306         top->gtod_cpu = cpu_to_le32(o->gtod_cpu);
 307         top->gtod_offload = cpu_to_le32(o->gtod_offload);
 308         top->clocksource = cpu_to_le32(o->clocksource);
 309         top->no_stall = cpu_to_le32(o->no_stall);
 310         top->trim_percentage = cpu_to_le32(o->trim_percentage);
 311         top->trim_batch = cpu_to_le32(o->trim_batch);
 312         top->trim_zero = cpu_to_le32(o->trim_zero);
 313         top->clat_percentiles = cpu_to_le32(o->clat_percentiles);
 314         top->overwrite_plist = cpu_to_le32(o->overwrite_plist);
 315         top->cpuload = cpu_to_le32(o->cpuload);
 316         top->cpucycle = cpu_to_le32(o->cpucycle);
 317         top->continue_on_error = cpu_to_le32(o->continue_on_error);
 318         top->cgroup_weight = cpu_to_le32(o->cgroup_weight);
 319         top->cgroup_nodelete = cpu_to_le32(o->cgroup_nodelete);
 320         top->uid = cpu_to_le32(o->uid);
 321         top->gid = cpu_to_le32(o->gid);
 322         top->flow_id = __cpu_to_le32(o->flow_id);
 323         top->flow = __cpu_to_le32(o->flow);
 324         top->flow_watermark = __cpu_to_le32(o->flow_watermark);
 325         top->flow_sleep = cpu_to_le32(o->flow_sleep);
 326         top->sync_file_range = cpu_to_le32(o->sync_file_range);
 327         top->compress_percentage = cpu_to_le32(o->compress_percentage);
 328         top->compress_chunk = cpu_to_le32(o->compress_chunk);
 329
 330         for (i = 0; i < 2; i++) {
 331                 top->bs[i] = cpu_to_le32(o->bs[i]);
 332                 top->ba[i] = cpu_to_le32(o->ba[i]);
 333                 top->min_bs[i] = cpu_to_le32(o->min_bs[i]);
 334                 top->max_bs[i] = cpu_to_le32(o->max_bs[i]);
 335                 top->bssplit_nr[i] = cpu_to_le32(o->bssplit_nr[i]);
 336
 337                 if (o->bssplit_nr[i]) {
 338                         unsigned int bssplit_nr = o->bssplit_nr[i];
 339
 340                         if (bssplit_nr > BSSPLIT_MAX) {
 341                                 log_err("fio: BSSPLIT_MAX is too small\n");
 342                                 bssplit_nr = BSSPLIT_MAX;
 343                         }
 344                         for (j = 0; j < bssplit_nr; j++) {
 345                                 top->bssplit[i][j].bs = cpu_to_le32(o->bssplit[i][j].bs);
 346                                 top->bssplit[i][j].perc = cpu_to_le32(o->bssplit[i][j].perc);
 347                         }
 348                 }
 349
 350                 top->rwmix[i] = cpu_to_le32(o->rwmix[i]);
 351                 top->rate[i] = cpu_to_le32(o->rate[i]);
 352                 top->ratemin[i] = cpu_to_le32(o->ratemin[i]);
 353                 top->rate_iops[i] = cpu_to_le32(o->rate_iops[i]);
 354                 top->rate_iops_min[i] = cpu_to_le32(o->rate_iops_min[i]);
 355         }
 356
 357         memcpy(top->verify_pattern, o->verify_pattern, MAX_PATTERN_SIZE);
 358
 359         top->size = __cpu_to_le64(o->size);
 360         top->verify_backlog = __cpu_to_le64(o->verify_backlog);
 361         top->start_delay = __cpu_to_le64(o->start_delay);
 362         top->timeout = __cpu_to_le64(o->timeout);
 363         top->ramp_time = __cpu_to_le64(o->ramp_time);
 364         top->zone_range = __cpu_to_le64(o->zone_range);
 365         top->zone_size = __cpu_to_le64(o->zone_size);
 366         top->zone_skip = __cpu_to_le64(o->zone_skip);
 367         top->ddir_seq_add = __cpu_to_le64(o->ddir_seq_add);
 368         top->file_size_low = __cpu_to_le64(o->file_size_low);
 369         top->file_size_high = __cpu_to_le64(o->file_size_high);
 370         top->start_offset = __cpu_to_le64(o->start_offset);
 371         top->trim_backlog = __cpu_to_le64(o->trim_backlog);
 372         top->offset_increment = __cpu_to_le64(o->offset_increment);
 373
 374         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++)
 375                 top->percentile_list[i].u.i = __cpu_to_le64(fio_double_to_uint64(o->percentile_list[i].u.f));
 376 #if 0
 377         uint8_t cpumask[FIO_TOP_STR_MAX];
 378         uint8_t verify_cpumask[FIO_TOP_STR_MAX];
 379 #endif
 380
 381 }
 382
 383 /*
 384  * Basic conversion test. We'd really need to fill in more of the options
 385  * to have a thorough test. Even better, we should auto-generate the
 386  * converter functions...
 387  */
 388 int fio_test_cconv(struct thread_options *__o)
 389 {
 390         struct thread_options o;
 391         struct thread_options_pack top1, top2;
 392
 393         memset(&top1, 0, sizeof(top1));
 394         memset(&top2, 0, sizeof(top2));
 395
 396         convert_thread_options_to_net(&top1, __o);
 397         memset(&o, 0, sizeof(o));
 398         convert_thread_options_to_cpu(&o, &top1);
 399         convert_thread_options_to_net(&top2, &o);
 400
 401         return memcmp(&top1, &top2, sizeof(top1));
 402 }