aboutsummaryrefslogtreecommitdiff
path: root/lib/progress.c
blob: 8951384481a917f48ccdf38211d66f1bd74639a6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution. The terms
 * are also available at https://curl.haxx.se/docs/copyright.html.
 *
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the COPYING file.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ***************************************************************************/

#include "curl_setup.h"

#include "urldata.h"
#include "sendf.h"
#include "multiif.h"
#include "progress.h"
#include "timeval.h"
#include "curl_printf.h"

/* check rate limits within this many recent milliseconds, at minimum. */
#define MIN_RATE_LIMIT_PERIOD 3000

#ifndef CURL_DISABLE_PROGRESS_METER
/* Provide a string that is 2 + 1 + 2 + 1 + 2 = 8 letters long (plus the zero
   byte) */
static void time2str(char *r, curl_off_t seconds)
{
  curl_off_t h;
  if(seconds <= 0) {
    strcpy(r, "--:--:--");
    return;
  }
  h = seconds / CURL_OFF_T_C(3600);
  if(h <= CURL_OFF_T_C(99)) {
    curl_off_t m = (seconds - (h*CURL_OFF_T_C(3600))) / CURL_OFF_T_C(60);
    curl_off_t s = (seconds - (h*CURL_OFF_T_C(3600))) - (m*CURL_OFF_T_C(60));
    msnprintf(r, 9, "%2" CURL_FORMAT_CURL_OFF_T ":%02" CURL_FORMAT_CURL_OFF_T
              ":%02" CURL_FORMAT_CURL_OFF_T, h, m, s);
  }
  else {
    /* this equals to more than 99 hours, switch to a more suitable output
       format to fit within the limits. */
    curl_off_t d = seconds / CURL_OFF_T_C(86400);
    h = (seconds - (d*CURL_OFF_T_C(86400))) / CURL_OFF_T_C(3600);
    if(d <= CURL_OFF_T_C(999))
      msnprintf(r, 9, "%3" CURL_FORMAT_CURL_OFF_T
                "d %02" CURL_FORMAT_CURL_OFF_T "h", d, h);
    else
      msnprintf(r, 9, "%7" CURL_FORMAT_CURL_OFF_T "d", d);
  }
}

/* The point of this function would be to return a string of the input data,
   but never longer than 5 columns (+ one zero byte).
   Add suffix k, M, G when suitable... */
static char *max5data(curl_off_t bytes, char *max5)
{
#define ONE_KILOBYTE  CURL_OFF_T_C(1024)
#define ONE_MEGABYTE (CURL_OFF_T_C(1024) * ONE_KILOBYTE)
#define ONE_GIGABYTE (CURL_OFF_T_C(1024) * ONE_MEGABYTE)
#define ONE_TERABYTE (CURL_OFF_T_C(1024) * ONE_GIGABYTE)
#define ONE_PETABYTE (CURL_OFF_T_C(1024) * ONE_TERABYTE)

  if(bytes < CURL_OFF_T_C(100000))
    msnprintf(max5, 6, "%5" CURL_FORMAT_CURL_OFF_T, bytes);

  else if(bytes < CURL_OFF_T_C(10000) * ONE_KILOBYTE)
    msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "k", bytes/ONE_KILOBYTE);

  else if(bytes < CURL_OFF_T_C(100) * ONE_MEGABYTE)
    /* 'XX.XM' is good as long as we're less than 100 megs */
    msnprintf(max5, 6, "%2" CURL_FORMAT_CURL_OFF_T ".%0"
              CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE,
              (bytes%ONE_MEGABYTE) / (ONE_MEGABYTE/CURL_OFF_T_C(10)) );

#if (CURL_SIZEOF_CURL_OFF_T > 4)

  else if(bytes < CURL_OFF_T_C(10000) * ONE_MEGABYTE)
    /* 'XXXXM' is good until we're at 10000MB or above */
    msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);

  else if(bytes < CURL_OFF_T_C(100) * ONE_GIGABYTE)
    /* 10000 MB - 100 GB, we show it as XX.XG */
    msnprintf(max5, 6, "%2" CURL_FORMAT_CURL_OFF_T ".%0"
              CURL_FORMAT_CURL_OFF_T "G", bytes/ONE_GIGABYTE,
              (bytes%ONE_GIGABYTE) / (ONE_GIGABYTE/CURL_OFF_T_C(10)) );

  else if(bytes < CURL_OFF_T_C(10000) * ONE_GIGABYTE)
    /* up to 10000GB, display without decimal: XXXXG */
    msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "G", bytes/ONE_GIGABYTE);

  else if(bytes < CURL_OFF_T_C(10000) * ONE_TERABYTE)
    /* up to 10000TB, display without decimal: XXXXT */
    msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "T", bytes/ONE_TERABYTE);

  else
    /* up to 10000PB, display without decimal: XXXXP */
    msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "P", bytes/ONE_PETABYTE);

    /* 16384 petabytes (16 exabytes) is the maximum a 64 bit unsigned number
       can hold, but our data type is signed so 8192PB will be the maximum. */

#else

  else
    msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);

#endif

  return max5;
}
#endif

/*

   New proposed interface, 9th of February 2000:

   pgrsStartNow() - sets start time
   pgrsSetDownloadSize(x) - known expected download size
   pgrsSetUploadSize(x) - known expected upload size
   pgrsSetDownloadCounter() - amount of data currently downloaded
   pgrsSetUploadCounter() - amount of data currently uploaded
   pgrsUpdate() - show progress
   pgrsDone() - transfer complete

*/

int Curl_pgrsDone(struct connectdata *conn)
{
  int rc;
  struct Curl_easy *data = conn->data;
  data->progress.lastshow = 0;
  rc = Curl_pgrsUpdate(conn); /* the final (forced) update */
  if(rc)
    return rc;

  if(!(data->progress.flags & PGRS_HIDE) &&
     !data->progress.callback)
    /* only output if we don't use a progress callback and we're not
     * hidden */
    fprintf(data->set.err, "\n");

  data->progress.speeder_c = 0; /* reset the progress meter display */
  return 0;
}

/* reset the known transfer sizes */
void Curl_pgrsResetTransferSizes(struct Curl_easy *data)
{
  Curl_pgrsSetDownloadSize(data, -1);
  Curl_pgrsSetUploadSize(data, -1);
}

/*
 * @unittest: 1399
 */
void Curl_pgrsTime(struct Curl_easy *data, timerid timer)
{
  struct curltime now = Curl_now();
  timediff_t *delta = NULL;

  switch(timer) {
  default:
  case TIMER_NONE:
    /* mistake filter */
    break;
  case TIMER_STARTOP:
    /* This is set at the start of a transfer */
    data->progress.t_startop = now;
    break;
  case TIMER_STARTSINGLE:
    /* This is set at the start of each single fetch */
    data->progress.t_startsingle = now;
    data->progress.is_t_startransfer_set = false;
    break;
  case TIMER_STARTACCEPT:
    data->progress.t_acceptdata = now;
    break;
  case TIMER_NAMELOOKUP:
    delta = &data->progress.t_nslookup;
    break;
  case TIMER_CONNECT:
    delta = &data->progress.t_connect;
    break;
  case TIMER_APPCONNECT:
    delta = &data->progress.t_appconnect;
    break;
  case TIMER_PRETRANSFER:
    delta = &data->progress.t_pretransfer;
    break;
  case TIMER_STARTTRANSFER:
    delta = &data->progress.t_starttransfer;
    /* prevent updating t_starttransfer unless:
     *   1) this is the first time we're setting t_starttransfer
     *   2) a redirect has occurred since the last time t_starttransfer was set
     * This prevents repeated invocations of the function from incorrectly
     * changing the t_starttransfer time.
     */
    if(data->progress.is_t_startransfer_set) {
      return;
    }
    else {
      data->progress.is_t_startransfer_set = true;
      break;
    }
  case TIMER_POSTRANSFER:
    /* this is the normal end-of-transfer thing */
    break;
  case TIMER_REDIRECT:
    data->progress.t_redirect = Curl_timediff_us(now, data->progress.start);
    break;
  }
  if(delta) {
    timediff_t us = Curl_timediff_us(now, data->progress.t_startsingle);
    if(us < 1)
      us = 1; /* make sure at least one microsecond passed */
    *delta += us;
  }
}

void Curl_pgrsStartNow(struct Curl_easy *data)
{
  data->progress.speeder_c = 0; /* reset the progress meter display */
  data->progress.start = Curl_now();
  data->progress.is_t_startransfer_set = false;
  data->progress.ul_limit_start.tv_sec = 0;
  data->progress.ul_limit_start.tv_usec = 0;
  data->progress.dl_limit_start.tv_sec = 0;
  data->progress.dl_limit_start.tv_usec = 0;
  data->progress.downloaded = 0;
  data->progress.uploaded = 0;
  /* clear all bits except HIDE and HEADERS_OUT */
  data->progress.flags &= PGRS_HIDE|PGRS_HEADERS_OUT;
  Curl_ratelimit(data, data->progress.start);
}

/*
 * This is used to handle speed limits, calculating how many milliseconds to
 * wait until we're back under the speed limit, if needed.
 *
 * The way it works is by having a "starting point" (time & amount of data
 * transferred by then) used in the speed computation, to be used instead of
 * the start of the transfer.  This starting point is regularly moved as
 * transfer goes on, to keep getting accurate values (instead of average over
 * the entire transfer).
 *
 * This function takes the current amount of data transferred, the amount at
 * the starting point, the limit (in bytes/s), the time of the starting point
 * and the current time.
 *
 * Returns 0 if no waiting is needed or when no waiting is needed but the
 * starting point should be reset (to current); or the number of milliseconds
 * to wait to get back under the speed limit.
 */
timediff_t Curl_pgrsLimitWaitTime(curl_off_t cursize,
                                  curl_off_t startsize,
                                  curl_off_t limit,
                                  struct curltime start,
                                  struct curltime now)
{
  curl_off_t size = cursize - startsize;
  timediff_t minimum;
  timediff_t actual;

  if(!limit || !size)
    return 0;

  /*
   * 'minimum' is the number of milliseconds 'size' should take to download to
   * stay below 'limit'.
   */
  if(size < CURL_OFF_T_MAX/1000)
    minimum = (timediff_t) (CURL_OFF_T_C(1000) * size / limit);
  else {
    minimum = (timediff_t) (size / limit);
    if(minimum < TIMEDIFF_T_MAX/1000)
      minimum *= 1000;
    else
      minimum = TIMEDIFF_T_MAX;
  }

  /*
   * 'actual' is the time in milliseconds it took to actually download the
   * last 'size' bytes.
   */
  actual = Curl_timediff(now, start);
  if(actual < minimum) {
    /* if it downloaded the data faster than the limit, make it wait the
       difference */
    return (minimum - actual);
  }

  return 0;
}

/*
 * Set the number of downloaded bytes so far.
 */
void Curl_pgrsSetDownloadCounter(struct Curl_easy *data, curl_off_t size)
{
  data->progress.downloaded = size;
}

/*
 * Update the timestamp and sizestamp to use for rate limit calculations.
 */
void Curl_ratelimit(struct Curl_easy *data, struct curltime now)
{
  /* don't set a new stamp unless the time since last update is long enough */
  if(data->set.max_recv_speed > 0) {
    if(Curl_timediff(now, data->progress.dl_limit_start) >=
       MIN_RATE_LIMIT_PERIOD) {
      data->progress.dl_limit_start = now;
      data->progress.dl_limit_size = data->progress.downloaded;
    }
  }
  if(data->set.max_send_speed > 0) {
    if(Curl_timediff(now, data->progress.ul_limit_start) >=
       MIN_RATE_LIMIT_PERIOD) {
      data->progress.ul_limit_start = now;
      data->progress.ul_limit_size = data->progress.uploaded;
    }
  }
}

/*
 * Set the number of uploaded bytes so far.
 */
void Curl_pgrsSetUploadCounter(struct Curl_easy *data, curl_off_t size)
{
  data->progress.uploaded = size;
}

void Curl_pgrsSetDownloadSize(struct Curl_easy *data, curl_off_t size)
{
  if(size >= 0) {
    data->progress.size_dl = size;
    data->progress.flags |= PGRS_DL_SIZE_KNOWN;
  }
  else {
    data->progress.size_dl = 0;
    data->progress.flags &= ~PGRS_DL_SIZE_KNOWN;
  }
}

void Curl_pgrsSetUploadSize(struct Curl_easy *data, curl_off_t size)
{
  if(size >= 0) {
    data->progress.size_ul = size;
    data->progress.flags |= PGRS_UL_SIZE_KNOWN;
  }
  else {
    data->progress.size_ul = 0;
    data->progress.flags &= ~PGRS_UL_SIZE_KNOWN;
  }
}

/* returns TRUE if it's time to show the progress meter */
static bool progress_calc(struct connectdata *conn, struct curltime now)
{
  curl_off_t timespent;
  curl_off_t timespent_ms; /* milliseconds */
  struct Curl_easy *data = conn->data;
  curl_off_t dl = data->progress.downloaded;
  curl_off_t ul = data->progress.uploaded;
  bool timetoshow = FALSE;

  /* The time spent so far (from the start) */
  data->progress.timespent = Curl_timediff_us(now, data->progress.start);
  timespent = (curl_off_t)data->progress.timespent/1000000; /* seconds */
  timespent_ms = (curl_off_t)data->progress.timespent/1000; /* ms */

  /* The average download speed this far */
  if(dl < CURL_OFF_T_MAX/1000)
    data->progress.dlspeed = (dl * 1000 / (timespent_ms>0?timespent_ms:1));
  else
    data->progress.dlspeed = (dl / (timespent>0?timespent:1));

  /* The average upload speed this far */
  if(ul < CURL_OFF_T_MAX/1000)
    data->progress.ulspeed = (ul * 1000 / (timespent_ms>0?timespent_ms:1));
  else
    data->progress.ulspeed = (ul / (timespent>0?timespent:1));

  /* Calculations done at most once a second, unless end is reached */
  if(data->progress.lastshow != now.tv_sec) {
    int countindex; /* amount of seconds stored in the speeder array */
    int nowindex = data->progress.speeder_c% CURR_TIME;
    data->progress.lastshow = now.tv_sec;
    timetoshow = TRUE;

    /* Let's do the "current speed" thing, with the dl + ul speeds
       combined. Store the speed at entry 'nowindex'. */
    data->progress.speeder[ nowindex ] =
      data->progress.downloaded + data->progress.uploaded;

    /* remember the exact time for this moment */
    data->progress.speeder_time [ nowindex ] = now;

    /* advance our speeder_c counter, which is increased every time we get
       here and we expect it to never wrap as 2^32 is a lot of seconds! */
    data->progress.speeder_c++;

    /* figure out how many index entries of data we have stored in our speeder
       array. With N_ENTRIES filled in, we have about N_ENTRIES-1 seconds of
       transfer. Imagine, after one second we have filled in two entries,
       after two seconds we've filled in three entries etc. */
    countindex = ((data->progress.speeder_c >= CURR_TIME)?
                  CURR_TIME:data->progress.speeder_c) - 1;

    /* first of all, we don't do this if there's no counted seconds yet */
    if(countindex) {
      int checkindex;
      timediff_t span_ms;

      /* Get the index position to compare with the 'nowindex' position.
         Get the oldest entry possible. While we have less than CURR_TIME
         entries, the first entry will remain the oldest. */
      checkindex = (data->progress.speeder_c >= CURR_TIME)?
        data->progress.speeder_c%CURR_TIME:0;

      /* Figure out the exact time for the time span */
      span_ms = Curl_timediff(now, data->progress.speeder_time[checkindex]);
      if(0 == span_ms)
        span_ms = 1; /* at least one millisecond MUST have passed */

      /* Calculate the average speed the last 'span_ms' milliseconds */
      {
        curl_off_t amount = data->progress.speeder[nowindex]-
          data->progress.speeder[checkindex];

        if(amount > CURL_OFF_T_C(4294967) /* 0xffffffff/1000 */)
          /* the 'amount' value is bigger than would fit in 32 bits if
             multiplied with 1000, so we use the double math for this */
          data->progress.current_speed = (curl_off_t)
            ((double)amount/((double)span_ms/1000.0));
        else
          /* the 'amount' value is small enough to fit within 32 bits even
             when multiplied with 1000 */
          data->progress.current_speed = amount*CURL_OFF_T_C(1000)/span_ms;
      }
    }
    else
      /* the first second we use the average */
      data->progress.current_speed =
        data->progress.ulspeed + data->progress.dlspeed;

  } /* Calculations end */
  return timetoshow;
}

#ifndef CURL_DISABLE_PROGRESS_METER
static void progress_meter(struct connectdata *conn)
{
  struct Curl_easy *data = conn->data;
  char max5[6][10];
  curl_off_t dlpercen = 0;
  curl_off_t ulpercen = 0;
  curl_off_t total_percen = 0;
  curl_off_t total_transfer;
  curl_off_t total_expected_transfer;
  char time_left[10];
  char time_total[10];
  char time_spent[10];
  curl_off_t ulestimate = 0;
  curl_off_t dlestimate = 0;
  curl_off_t total_estimate;
  curl_off_t timespent =
    (curl_off_t)data->progress.timespent/1000000; /* seconds */

  if(!(data->progress.flags & PGRS_HEADERS_OUT)) {
    if(data->state.resume_from) {
      fprintf(data->set.err,
              "** Resuming transfer from byte position %"
              CURL_FORMAT_CURL_OFF_T "\n", data->state.resume_from);
    }
    fprintf(data->set.err,
            "  %% Total    %% Received %% Xferd  Average Speed   "
            "Time    Time     Time  Current\n"
            "                                 Dload  Upload   "
            "Total   Spent    Left  Speed\n");
    data->progress.flags |= PGRS_HEADERS_OUT; /* headers are shown */
  }

  /* Figure out the estimated time of arrival for the upload */
  if((data->progress.flags & PGRS_UL_SIZE_KNOWN) &&
     (data->progress.ulspeed > CURL_OFF_T_C(0))) {
    ulestimate = data->progress.size_ul / data->progress.ulspeed;

    if(data->progress.size_ul > CURL_OFF_T_C(10000))
      ulpercen = data->progress.uploaded /
        (data->progress.size_ul/CURL_OFF_T_C(100));
    else if(data->progress.size_ul > CURL_OFF_T_C(0))
      ulpercen = (data->progress.uploaded*100) /
        data->progress.size_ul;
  }

  /* ... and the download */
  if((data->progress.flags & PGRS_DL_SIZE_KNOWN) &&
     (data->progress.dlspeed > CURL_OFF_T_C(0))) {
    dlestimate = data->progress.size_dl / data->progress.dlspeed;

    if(data->progress.size_dl > CURL_OFF_T_C(10000))
      dlpercen = data->progress.downloaded /
        (data->progress.size_dl/CURL_OFF_T_C(100));
    else if(data->progress.size_dl > CURL_OFF_T_C(0))
      dlpercen = (data->progress.downloaded*100) /
        data->progress.size_dl;
  }

  /* Now figure out which of them is slower and use that one for the
     total estimate! */
  total_estimate = ulestimate>dlestimate?ulestimate:dlestimate;

  /* create the three time strings */
  time2str(time_left, total_estimate > 0?(total_estimate - timespent):0);
  time2str(time_total, total_estimate);
  time2str(time_spent, timespent);

  /* Get the total amount of data expected to get transferred */
  total_expected_transfer =
    ((data->progress.flags & PGRS_UL_SIZE_KNOWN)?
     data->progress.size_ul:data->progress.uploaded)+
    ((data->progress.flags & PGRS_DL_SIZE_KNOWN)?
     data->progress.size_dl:data->progress.downloaded);

  /* We have transferred this much so far */
  total_transfer = data->progress.downloaded + data->progress.uploaded;

  /* Get the percentage of data transferred so far */
  if(total_expected_transfer > CURL_OFF_T_C(10000))
    total_percen = total_transfer /
      (total_expected_transfer/CURL_OFF_T_C(100));
  else if(total_expected_transfer > CURL_OFF_T_C(0))
    total_percen = (total_transfer*100) / total_expected_transfer;

  fprintf(data->set.err,
          "\r"
          "%3" CURL_FORMAT_CURL_OFF_T " %s  "
          "%3" CURL_FORMAT_CURL_OFF_T " %s  "
          "%3" CURL_FORMAT_CURL_OFF_T " %s  %s  %s %s %s %s %s",
          total_percen,  /* 3 letters */                /* total % */
          max5data(total_expected_transfer, max5[2]),   /* total size */
          dlpercen,      /* 3 letters */                /* rcvd % */
          max5data(data->progress.downloaded, max5[0]), /* rcvd size */
          ulpercen,      /* 3 letters */                /* xfer % */
          max5data(data->progress.uploaded, max5[1]),   /* xfer size */
          max5data(data->progress.dlspeed, max5[3]),    /* avrg dl speed */
          max5data(data->progress.ulspeed, max5[4]),    /* avrg ul speed */
          time_total,    /* 8 letters */                /* total time */
          time_spent,    /* 8 letters */                /* time spent */
          time_left,     /* 8 letters */                /* time left */
          max5data(data->progress.current_speed, max5[5])
    );

  /* we flush the output stream to make it appear as soon as possible */
  fflush(data->set.err);
}
#else
 /* progress bar disabled */
#define progress_meter(x) Curl_nop_stmt
#endif


/*
 * Curl_pgrsUpdate() returns 0 for success or the value returned by the
 * progress callback!
 */
int Curl_pgrsUpdate(struct connectdata *conn)
{
  struct Curl_easy *data = conn->data;
  struct curltime now = Curl_now(); /* what time is it */
  bool showprogress = progress_calc(conn, now);
  if(!(data->progress.flags & PGRS_HIDE)) {
    if(data->set.fxferinfo) {
      int result;
      /* There's a callback set, call that */
      Curl_set_in_callback(data, true);
      result = data->set.fxferinfo(data->set.progress_client,
                                   data->progress.size_dl,
                                   data->progress.downloaded,
                                   data->progress.size_ul,
                                   data->progress.uploaded);
      Curl_set_in_callback(data, false);
      if(result != CURL_PROGRESSFUNC_CONTINUE) {
        if(result)
          failf(data, "Callback aborted");
        return result;
      }
    }
    else if(data->set.fprogress) {
      int result;
      /* The older deprecated callback is set, call that */
      Curl_set_in_callback(data, true);
      result = data->set.fprogress(data->set.progress_client,
                                   (double)data->progress.size_dl,
                                   (double)data->progress.downloaded,
                                   (double)data->progress.size_ul,
                                   (double)data->progress.uploaded);
      Curl_set_in_callback(data, false);
      if(result != CURL_PROGRESSFUNC_CONTINUE) {
        if(result)
          failf(data, "Callback aborted");
        return result;
      }
    }

    if(showprogress)
      progress_meter(conn);
  }

  return 0;
}