File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / curl / lib / progress.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Wed Jun 3 10:01:15 2020 UTC (5 years ago) by misho
Branches: curl, MAIN
CVS tags: v7_70_0p4, HEAD
curl

    1: /***************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
    9:  *
   10:  * This software is licensed as described in the file COPYING, which
   11:  * you should have received as part of this distribution. The terms
   12:  * are also available at https://curl.haxx.se/docs/copyright.html.
   13:  *
   14:  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
   15:  * copies of the Software, and permit persons to whom the Software is
   16:  * furnished to do so, under the terms of the COPYING file.
   17:  *
   18:  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
   19:  * KIND, either express or implied.
   20:  *
   21:  ***************************************************************************/
   22: 
   23: #include "curl_setup.h"
   24: 
   25: #include "urldata.h"
   26: #include "sendf.h"
   27: #include "multiif.h"
   28: #include "progress.h"
   29: #include "timeval.h"
   30: #include "curl_printf.h"
   31: 
   32: /* check rate limits within this many recent milliseconds, at minimum. */
   33: #define MIN_RATE_LIMIT_PERIOD 3000
   34: 
   35: #ifndef CURL_DISABLE_PROGRESS_METER
   36: /* Provide a string that is 2 + 1 + 2 + 1 + 2 = 8 letters long (plus the zero
   37:    byte) */
   38: static void time2str(char *r, curl_off_t seconds)
   39: {
   40:   curl_off_t h;
   41:   if(seconds <= 0) {
   42:     strcpy(r, "--:--:--");
   43:     return;
   44:   }
   45:   h = seconds / CURL_OFF_T_C(3600);
   46:   if(h <= CURL_OFF_T_C(99)) {
   47:     curl_off_t m = (seconds - (h*CURL_OFF_T_C(3600))) / CURL_OFF_T_C(60);
   48:     curl_off_t s = (seconds - (h*CURL_OFF_T_C(3600))) - (m*CURL_OFF_T_C(60));
   49:     msnprintf(r, 9, "%2" CURL_FORMAT_CURL_OFF_T ":%02" CURL_FORMAT_CURL_OFF_T
   50:               ":%02" CURL_FORMAT_CURL_OFF_T, h, m, s);
   51:   }
   52:   else {
   53:     /* this equals to more than 99 hours, switch to a more suitable output
   54:        format to fit within the limits. */
   55:     curl_off_t d = seconds / CURL_OFF_T_C(86400);
   56:     h = (seconds - (d*CURL_OFF_T_C(86400))) / CURL_OFF_T_C(3600);
   57:     if(d <= CURL_OFF_T_C(999))
   58:       msnprintf(r, 9, "%3" CURL_FORMAT_CURL_OFF_T
   59:                 "d %02" CURL_FORMAT_CURL_OFF_T "h", d, h);
   60:     else
   61:       msnprintf(r, 9, "%7" CURL_FORMAT_CURL_OFF_T "d", d);
   62:   }
   63: }
   64: 
   65: /* The point of this function would be to return a string of the input data,
   66:    but never longer than 5 columns (+ one zero byte).
   67:    Add suffix k, M, G when suitable... */
   68: static char *max5data(curl_off_t bytes, char *max5)
   69: {
   70: #define ONE_KILOBYTE  CURL_OFF_T_C(1024)
   71: #define ONE_MEGABYTE (CURL_OFF_T_C(1024) * ONE_KILOBYTE)
   72: #define ONE_GIGABYTE (CURL_OFF_T_C(1024) * ONE_MEGABYTE)
   73: #define ONE_TERABYTE (CURL_OFF_T_C(1024) * ONE_GIGABYTE)
   74: #define ONE_PETABYTE (CURL_OFF_T_C(1024) * ONE_TERABYTE)
   75: 
   76:   if(bytes < CURL_OFF_T_C(100000))
   77:     msnprintf(max5, 6, "%5" CURL_FORMAT_CURL_OFF_T, bytes);
   78: 
   79:   else if(bytes < CURL_OFF_T_C(10000) * ONE_KILOBYTE)
   80:     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "k", bytes/ONE_KILOBYTE);
   81: 
   82:   else if(bytes < CURL_OFF_T_C(100) * ONE_MEGABYTE)
   83:     /* 'XX.XM' is good as long as we're less than 100 megs */
   84:     msnprintf(max5, 6, "%2" CURL_FORMAT_CURL_OFF_T ".%0"
   85:               CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE,
   86:               (bytes%ONE_MEGABYTE) / (ONE_MEGABYTE/CURL_OFF_T_C(10)) );
   87: 
   88: #if (CURL_SIZEOF_CURL_OFF_T > 4)
   89: 
   90:   else if(bytes < CURL_OFF_T_C(10000) * ONE_MEGABYTE)
   91:     /* 'XXXXM' is good until we're at 10000MB or above */
   92:     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
   93: 
   94:   else if(bytes < CURL_OFF_T_C(100) * ONE_GIGABYTE)
   95:     /* 10000 MB - 100 GB, we show it as XX.XG */
   96:     msnprintf(max5, 6, "%2" CURL_FORMAT_CURL_OFF_T ".%0"
   97:               CURL_FORMAT_CURL_OFF_T "G", bytes/ONE_GIGABYTE,
   98:               (bytes%ONE_GIGABYTE) / (ONE_GIGABYTE/CURL_OFF_T_C(10)) );
   99: 
  100:   else if(bytes < CURL_OFF_T_C(10000) * ONE_GIGABYTE)
  101:     /* up to 10000GB, display without decimal: XXXXG */
  102:     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "G", bytes/ONE_GIGABYTE);
  103: 
  104:   else if(bytes < CURL_OFF_T_C(10000) * ONE_TERABYTE)
  105:     /* up to 10000TB, display without decimal: XXXXT */
  106:     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "T", bytes/ONE_TERABYTE);
  107: 
  108:   else
  109:     /* up to 10000PB, display without decimal: XXXXP */
  110:     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "P", bytes/ONE_PETABYTE);
  111: 
  112:     /* 16384 petabytes (16 exabytes) is the maximum a 64 bit unsigned number
  113:        can hold, but our data type is signed so 8192PB will be the maximum. */
  114: 
  115: #else
  116: 
  117:   else
  118:     msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
  119: 
  120: #endif
  121: 
  122:   return max5;
  123: }
  124: #endif
  125: 
  126: /*
  127: 
  128:    New proposed interface, 9th of February 2000:
  129: 
  130:    pgrsStartNow() - sets start time
  131:    pgrsSetDownloadSize(x) - known expected download size
  132:    pgrsSetUploadSize(x) - known expected upload size
  133:    pgrsSetDownloadCounter() - amount of data currently downloaded
  134:    pgrsSetUploadCounter() - amount of data currently uploaded
  135:    pgrsUpdate() - show progress
  136:    pgrsDone() - transfer complete
  137: 
  138: */
  139: 
  140: int Curl_pgrsDone(struct connectdata *conn)
  141: {
  142:   int rc;
  143:   struct Curl_easy *data = conn->data;
  144:   data->progress.lastshow = 0;
  145:   rc = Curl_pgrsUpdate(conn); /* the final (forced) update */
  146:   if(rc)
  147:     return rc;
  148: 
  149:   if(!(data->progress.flags & PGRS_HIDE) &&
  150:      !data->progress.callback)
  151:     /* only output if we don't use a progress callback and we're not
  152:      * hidden */
  153:     fprintf(data->set.err, "\n");
  154: 
  155:   data->progress.speeder_c = 0; /* reset the progress meter display */
  156:   return 0;
  157: }
  158: 
  159: /* reset the known transfer sizes */
  160: void Curl_pgrsResetTransferSizes(struct Curl_easy *data)
  161: {
  162:   Curl_pgrsSetDownloadSize(data, -1);
  163:   Curl_pgrsSetUploadSize(data, -1);
  164: }
  165: 
  166: /*
  167:  * @unittest: 1399
  168:  */
  169: void Curl_pgrsTime(struct Curl_easy *data, timerid timer)
  170: {
  171:   struct curltime now = Curl_now();
  172:   timediff_t *delta = NULL;
  173: 
  174:   switch(timer) {
  175:   default:
  176:   case TIMER_NONE:
  177:     /* mistake filter */
  178:     break;
  179:   case TIMER_STARTOP:
  180:     /* This is set at the start of a transfer */
  181:     data->progress.t_startop = now;
  182:     break;
  183:   case TIMER_STARTSINGLE:
  184:     /* This is set at the start of each single fetch */
  185:     data->progress.t_startsingle = now;
  186:     data->progress.is_t_startransfer_set = false;
  187:     break;
  188:   case TIMER_STARTACCEPT:
  189:     data->progress.t_acceptdata = now;
  190:     break;
  191:   case TIMER_NAMELOOKUP:
  192:     delta = &data->progress.t_nslookup;
  193:     break;
  194:   case TIMER_CONNECT:
  195:     delta = &data->progress.t_connect;
  196:     break;
  197:   case TIMER_APPCONNECT:
  198:     delta = &data->progress.t_appconnect;
  199:     break;
  200:   case TIMER_PRETRANSFER:
  201:     delta = &data->progress.t_pretransfer;
  202:     break;
  203:   case TIMER_STARTTRANSFER:
  204:     delta = &data->progress.t_starttransfer;
  205:     /* prevent updating t_starttransfer unless:
  206:      *   1) this is the first time we're setting t_starttransfer
  207:      *   2) a redirect has occurred since the last time t_starttransfer was set
  208:      * This prevents repeated invocations of the function from incorrectly
  209:      * changing the t_starttransfer time.
  210:      */
  211:     if(data->progress.is_t_startransfer_set) {
  212:       return;
  213:     }
  214:     else {
  215:       data->progress.is_t_startransfer_set = true;
  216:       break;
  217:     }
  218:   case TIMER_POSTRANSFER:
  219:     /* this is the normal end-of-transfer thing */
  220:     break;
  221:   case TIMER_REDIRECT:
  222:     data->progress.t_redirect = Curl_timediff_us(now, data->progress.start);
  223:     break;
  224:   }
  225:   if(delta) {
  226:     timediff_t us = Curl_timediff_us(now, data->progress.t_startsingle);
  227:     if(us < 1)
  228:       us = 1; /* make sure at least one microsecond passed */
  229:     *delta += us;
  230:   }
  231: }
  232: 
  233: void Curl_pgrsStartNow(struct Curl_easy *data)
  234: {
  235:   data->progress.speeder_c = 0; /* reset the progress meter display */
  236:   data->progress.start = Curl_now();
  237:   data->progress.is_t_startransfer_set = false;
  238:   data->progress.ul_limit_start.tv_sec = 0;
  239:   data->progress.ul_limit_start.tv_usec = 0;
  240:   data->progress.dl_limit_start.tv_sec = 0;
  241:   data->progress.dl_limit_start.tv_usec = 0;
  242:   data->progress.downloaded = 0;
  243:   data->progress.uploaded = 0;
  244:   /* clear all bits except HIDE and HEADERS_OUT */
  245:   data->progress.flags &= PGRS_HIDE|PGRS_HEADERS_OUT;
  246:   Curl_ratelimit(data, data->progress.start);
  247: }
  248: 
  249: /*
  250:  * This is used to handle speed limits, calculating how many milliseconds to
  251:  * wait until we're back under the speed limit, if needed.
  252:  *
  253:  * The way it works is by having a "starting point" (time & amount of data
  254:  * transferred by then) used in the speed computation, to be used instead of
  255:  * the start of the transfer.  This starting point is regularly moved as
  256:  * transfer goes on, to keep getting accurate values (instead of average over
  257:  * the entire transfer).
  258:  *
  259:  * This function takes the current amount of data transferred, the amount at
  260:  * the starting point, the limit (in bytes/s), the time of the starting point
  261:  * and the current time.
  262:  *
  263:  * Returns 0 if no waiting is needed or when no waiting is needed but the
  264:  * starting point should be reset (to current); or the number of milliseconds
  265:  * to wait to get back under the speed limit.
  266:  */
  267: timediff_t Curl_pgrsLimitWaitTime(curl_off_t cursize,
  268:                                   curl_off_t startsize,
  269:                                   curl_off_t limit,
  270:                                   struct curltime start,
  271:                                   struct curltime now)
  272: {
  273:   curl_off_t size = cursize - startsize;
  274:   timediff_t minimum;
  275:   timediff_t actual;
  276: 
  277:   if(!limit || !size)
  278:     return 0;
  279: 
  280:   /*
  281:    * 'minimum' is the number of milliseconds 'size' should take to download to
  282:    * stay below 'limit'.
  283:    */
  284:   if(size < CURL_OFF_T_MAX/1000)
  285:     minimum = (time_t) (CURL_OFF_T_C(1000) * size / limit);
  286:   else {
  287:     minimum = (time_t) (size / limit);
  288:     if(minimum < TIMEDIFF_T_MAX/1000)
  289:       minimum *= 1000;
  290:     else
  291:       minimum = TIMEDIFF_T_MAX;
  292:   }
  293: 
  294:   /*
  295:    * 'actual' is the time in milliseconds it took to actually download the
  296:    * last 'size' bytes.
  297:    */
  298:   actual = Curl_timediff(now, start);
  299:   if(actual < minimum) {
  300:     /* if it downloaded the data faster than the limit, make it wait the
  301:        difference */
  302:     return (minimum - actual);
  303:   }
  304: 
  305:   return 0;
  306: }
  307: 
  308: /*
  309:  * Set the number of downloaded bytes so far.
  310:  */
  311: void Curl_pgrsSetDownloadCounter(struct Curl_easy *data, curl_off_t size)
  312: {
  313:   data->progress.downloaded = size;
  314: }
  315: 
  316: /*
  317:  * Update the timestamp and sizestamp to use for rate limit calculations.
  318:  */
  319: void Curl_ratelimit(struct Curl_easy *data, struct curltime now)
  320: {
  321:   /* don't set a new stamp unless the time since last update is long enough */
  322:   if(data->set.max_recv_speed > 0) {
  323:     if(Curl_timediff(now, data->progress.dl_limit_start) >=
  324:        MIN_RATE_LIMIT_PERIOD) {
  325:       data->progress.dl_limit_start = now;
  326:       data->progress.dl_limit_size = data->progress.downloaded;
  327:     }
  328:   }
  329:   if(data->set.max_send_speed > 0) {
  330:     if(Curl_timediff(now, data->progress.ul_limit_start) >=
  331:        MIN_RATE_LIMIT_PERIOD) {
  332:       data->progress.ul_limit_start = now;
  333:       data->progress.ul_limit_size = data->progress.uploaded;
  334:     }
  335:   }
  336: }
  337: 
  338: /*
  339:  * Set the number of uploaded bytes so far.
  340:  */
  341: void Curl_pgrsSetUploadCounter(struct Curl_easy *data, curl_off_t size)
  342: {
  343:   data->progress.uploaded = size;
  344: }
  345: 
  346: void Curl_pgrsSetDownloadSize(struct Curl_easy *data, curl_off_t size)
  347: {
  348:   if(size >= 0) {
  349:     data->progress.size_dl = size;
  350:     data->progress.flags |= PGRS_DL_SIZE_KNOWN;
  351:   }
  352:   else {
  353:     data->progress.size_dl = 0;
  354:     data->progress.flags &= ~PGRS_DL_SIZE_KNOWN;
  355:   }
  356: }
  357: 
  358: void Curl_pgrsSetUploadSize(struct Curl_easy *data, curl_off_t size)
  359: {
  360:   if(size >= 0) {
  361:     data->progress.size_ul = size;
  362:     data->progress.flags |= PGRS_UL_SIZE_KNOWN;
  363:   }
  364:   else {
  365:     data->progress.size_ul = 0;
  366:     data->progress.flags &= ~PGRS_UL_SIZE_KNOWN;
  367:   }
  368: }
  369: 
  370: /* returns TRUE if it's time to show the progress meter */
  371: static bool progress_calc(struct connectdata *conn, struct curltime now)
  372: {
  373:   curl_off_t timespent;
  374:   curl_off_t timespent_ms; /* milliseconds */
  375:   struct Curl_easy *data = conn->data;
  376:   curl_off_t dl = data->progress.downloaded;
  377:   curl_off_t ul = data->progress.uploaded;
  378:   bool timetoshow = FALSE;
  379: 
  380:   /* The time spent so far (from the start) */
  381:   data->progress.timespent = Curl_timediff_us(now, data->progress.start);
  382:   timespent = (curl_off_t)data->progress.timespent/1000000; /* seconds */
  383:   timespent_ms = (curl_off_t)data->progress.timespent/1000; /* ms */
  384: 
  385:   /* The average download speed this far */
  386:   if(dl < CURL_OFF_T_MAX/1000)
  387:     data->progress.dlspeed = (dl * 1000 / (timespent_ms>0?timespent_ms:1));
  388:   else
  389:     data->progress.dlspeed = (dl / (timespent>0?timespent:1));
  390: 
  391:   /* The average upload speed this far */
  392:   if(ul < CURL_OFF_T_MAX/1000)
  393:     data->progress.ulspeed = (ul * 1000 / (timespent_ms>0?timespent_ms:1));
  394:   else
  395:     data->progress.ulspeed = (ul / (timespent>0?timespent:1));
  396: 
  397:   /* Calculations done at most once a second, unless end is reached */
  398:   if(data->progress.lastshow != now.tv_sec) {
  399:     int countindex; /* amount of seconds stored in the speeder array */
  400:     int nowindex = data->progress.speeder_c% CURR_TIME;
  401:     data->progress.lastshow = now.tv_sec;
  402:     timetoshow = TRUE;
  403: 
  404:     /* Let's do the "current speed" thing, with the dl + ul speeds
  405:        combined. Store the speed at entry 'nowindex'. */
  406:     data->progress.speeder[ nowindex ] =
  407:       data->progress.downloaded + data->progress.uploaded;
  408: 
  409:     /* remember the exact time for this moment */
  410:     data->progress.speeder_time [ nowindex ] = now;
  411: 
  412:     /* advance our speeder_c counter, which is increased every time we get
  413:        here and we expect it to never wrap as 2^32 is a lot of seconds! */
  414:     data->progress.speeder_c++;
  415: 
  416:     /* figure out how many index entries of data we have stored in our speeder
  417:        array. With N_ENTRIES filled in, we have about N_ENTRIES-1 seconds of
  418:        transfer. Imagine, after one second we have filled in two entries,
  419:        after two seconds we've filled in three entries etc. */
  420:     countindex = ((data->progress.speeder_c >= CURR_TIME)?
  421:                   CURR_TIME:data->progress.speeder_c) - 1;
  422: 
  423:     /* first of all, we don't do this if there's no counted seconds yet */
  424:     if(countindex) {
  425:       int checkindex;
  426:       timediff_t span_ms;
  427: 
  428:       /* Get the index position to compare with the 'nowindex' position.
  429:          Get the oldest entry possible. While we have less than CURR_TIME
  430:          entries, the first entry will remain the oldest. */
  431:       checkindex = (data->progress.speeder_c >= CURR_TIME)?
  432:         data->progress.speeder_c%CURR_TIME:0;
  433: 
  434:       /* Figure out the exact time for the time span */
  435:       span_ms = Curl_timediff(now, data->progress.speeder_time[checkindex]);
  436:       if(0 == span_ms)
  437:         span_ms = 1; /* at least one millisecond MUST have passed */
  438: 
  439:       /* Calculate the average speed the last 'span_ms' milliseconds */
  440:       {
  441:         curl_off_t amount = data->progress.speeder[nowindex]-
  442:           data->progress.speeder[checkindex];
  443: 
  444:         if(amount > CURL_OFF_T_C(4294967) /* 0xffffffff/1000 */)
  445:           /* the 'amount' value is bigger than would fit in 32 bits if
  446:              multiplied with 1000, so we use the double math for this */
  447:           data->progress.current_speed = (curl_off_t)
  448:             ((double)amount/((double)span_ms/1000.0));
  449:         else
  450:           /* the 'amount' value is small enough to fit within 32 bits even
  451:              when multiplied with 1000 */
  452:           data->progress.current_speed = amount*CURL_OFF_T_C(1000)/span_ms;
  453:       }
  454:     }
  455:     else
  456:       /* the first second we use the average */
  457:       data->progress.current_speed =
  458:         data->progress.ulspeed + data->progress.dlspeed;
  459: 
  460:   } /* Calculations end */
  461:   return timetoshow;
  462: }
  463: 
  464: #ifndef CURL_DISABLE_PROGRESS_METER
  465: static void progress_meter(struct connectdata *conn)
  466: {
  467:   struct Curl_easy *data = conn->data;
  468:   char max5[6][10];
  469:   curl_off_t dlpercen = 0;
  470:   curl_off_t ulpercen = 0;
  471:   curl_off_t total_percen = 0;
  472:   curl_off_t total_transfer;
  473:   curl_off_t total_expected_transfer;
  474:   char time_left[10];
  475:   char time_total[10];
  476:   char time_spent[10];
  477:   curl_off_t ulestimate = 0;
  478:   curl_off_t dlestimate = 0;
  479:   curl_off_t total_estimate;
  480:   curl_off_t timespent =
  481:     (curl_off_t)data->progress.timespent/1000000; /* seconds */
  482: 
  483:   if(!(data->progress.flags & PGRS_HEADERS_OUT)) {
  484:     if(data->state.resume_from) {
  485:       fprintf(data->set.err,
  486:               "** Resuming transfer from byte position %"
  487:               CURL_FORMAT_CURL_OFF_T "\n", data->state.resume_from);
  488:     }
  489:     fprintf(data->set.err,
  490:             "  %% Total    %% Received %% Xferd  Average Speed   "
  491:             "Time    Time     Time  Current\n"
  492:             "                                 Dload  Upload   "
  493:             "Total   Spent    Left  Speed\n");
  494:     data->progress.flags |= PGRS_HEADERS_OUT; /* headers are shown */
  495:   }
  496: 
  497:   /* Figure out the estimated time of arrival for the upload */
  498:   if((data->progress.flags & PGRS_UL_SIZE_KNOWN) &&
  499:      (data->progress.ulspeed > CURL_OFF_T_C(0))) {
  500:     ulestimate = data->progress.size_ul / data->progress.ulspeed;
  501: 
  502:     if(data->progress.size_ul > CURL_OFF_T_C(10000))
  503:       ulpercen = data->progress.uploaded /
  504:         (data->progress.size_ul/CURL_OFF_T_C(100));
  505:     else if(data->progress.size_ul > CURL_OFF_T_C(0))
  506:       ulpercen = (data->progress.uploaded*100) /
  507:         data->progress.size_ul;
  508:   }
  509: 
  510:   /* ... and the download */
  511:   if((data->progress.flags & PGRS_DL_SIZE_KNOWN) &&
  512:      (data->progress.dlspeed > CURL_OFF_T_C(0))) {
  513:     dlestimate = data->progress.size_dl / data->progress.dlspeed;
  514: 
  515:     if(data->progress.size_dl > CURL_OFF_T_C(10000))
  516:       dlpercen = data->progress.downloaded /
  517:         (data->progress.size_dl/CURL_OFF_T_C(100));
  518:     else if(data->progress.size_dl > CURL_OFF_T_C(0))
  519:       dlpercen = (data->progress.downloaded*100) /
  520:         data->progress.size_dl;
  521:   }
  522: 
  523:   /* Now figure out which of them is slower and use that one for the
  524:      total estimate! */
  525:   total_estimate = ulestimate>dlestimate?ulestimate:dlestimate;
  526: 
  527:   /* create the three time strings */
  528:   time2str(time_left, total_estimate > 0?(total_estimate - timespent):0);
  529:   time2str(time_total, total_estimate);
  530:   time2str(time_spent, timespent);
  531: 
  532:   /* Get the total amount of data expected to get transferred */
  533:   total_expected_transfer =
  534:     ((data->progress.flags & PGRS_UL_SIZE_KNOWN)?
  535:      data->progress.size_ul:data->progress.uploaded)+
  536:     ((data->progress.flags & PGRS_DL_SIZE_KNOWN)?
  537:      data->progress.size_dl:data->progress.downloaded);
  538: 
  539:   /* We have transferred this much so far */
  540:   total_transfer = data->progress.downloaded + data->progress.uploaded;
  541: 
  542:   /* Get the percentage of data transferred so far */
  543:   if(total_expected_transfer > CURL_OFF_T_C(10000))
  544:     total_percen = total_transfer /
  545:       (total_expected_transfer/CURL_OFF_T_C(100));
  546:   else if(total_expected_transfer > CURL_OFF_T_C(0))
  547:     total_percen = (total_transfer*100) / total_expected_transfer;
  548: 
  549:   fprintf(data->set.err,
  550:           "\r"
  551:           "%3" CURL_FORMAT_CURL_OFF_T " %s  "
  552:           "%3" CURL_FORMAT_CURL_OFF_T " %s  "
  553:           "%3" CURL_FORMAT_CURL_OFF_T " %s  %s  %s %s %s %s %s",
  554:           total_percen,  /* 3 letters */                /* total % */
  555:           max5data(total_expected_transfer, max5[2]),   /* total size */
  556:           dlpercen,      /* 3 letters */                /* rcvd % */
  557:           max5data(data->progress.downloaded, max5[0]), /* rcvd size */
  558:           ulpercen,      /* 3 letters */                /* xfer % */
  559:           max5data(data->progress.uploaded, max5[1]),   /* xfer size */
  560:           max5data(data->progress.dlspeed, max5[3]),    /* avrg dl speed */
  561:           max5data(data->progress.ulspeed, max5[4]),    /* avrg ul speed */
  562:           time_total,    /* 8 letters */                /* total time */
  563:           time_spent,    /* 8 letters */                /* time spent */
  564:           time_left,     /* 8 letters */                /* time left */
  565:           max5data(data->progress.current_speed, max5[5])
  566:     );
  567: 
  568:   /* we flush the output stream to make it appear as soon as possible */
  569:   fflush(data->set.err);
  570: }
  571: #else
  572:  /* progress bar disabled */
  573: #define progress_meter(x) Curl_nop_stmt
  574: #endif
  575: 
  576: 
  577: /*
  578:  * Curl_pgrsUpdate() returns 0 for success or the value returned by the
  579:  * progress callback!
  580:  */
  581: int Curl_pgrsUpdate(struct connectdata *conn)
  582: {
  583:   struct Curl_easy *data = conn->data;
  584:   struct curltime now = Curl_now(); /* what time is it */
  585:   bool showprogress = progress_calc(conn, now);
  586:   if(!(data->progress.flags & PGRS_HIDE)) {
  587:     if(data->set.fxferinfo) {
  588:       int result;
  589:       /* There's a callback set, call that */
  590:       Curl_set_in_callback(data, true);
  591:       result = data->set.fxferinfo(data->set.progress_client,
  592:                                    data->progress.size_dl,
  593:                                    data->progress.downloaded,
  594:                                    data->progress.size_ul,
  595:                                    data->progress.uploaded);
  596:       Curl_set_in_callback(data, false);
  597:       if(result != CURL_PROGRESSFUNC_CONTINUE) {
  598:         if(result)
  599:           failf(data, "Callback aborted");
  600:         return result;
  601:       }
  602:     }
  603:     else if(data->set.fprogress) {
  604:       int result;
  605:       /* The older deprecated callback is set, call that */
  606:       Curl_set_in_callback(data, true);
  607:       result = data->set.fprogress(data->set.progress_client,
  608:                                    (double)data->progress.size_dl,
  609:                                    (double)data->progress.downloaded,
  610:                                    (double)data->progress.size_ul,
  611:                                    (double)data->progress.uploaded);
  612:       Curl_set_in_callback(data, false);
  613:       if(result != CURL_PROGRESSFUNC_CONTINUE) {
  614:         if(result)
  615:           failf(data, "Callback aborted");
  616:         return result;
  617:       }
  618:     }
  619: 
  620:     if(showprogress)
  621:       progress_meter(conn);
  622:   }
  623: 
  624:   return 0;
  625: }

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