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      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel (at) 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 #include "tool_setup.h"
     23 
     24 #ifdef HAVE_SYS_IOCTL_H
     25 #include <sys/ioctl.h>
     26 #endif
     27 
     28 #define ENABLE_CURLX_PRINTF
     29 /* use our own printf() functions */
     30 #include "curlx.h"
     31 
     32 #include "tool_cfgable.h"
     33 #include "tool_cb_prg.h"
     34 #include "tool_util.h"
     35 
     36 #include "memdebug.h" /* keep this as LAST include */
     37 
     38 /* 200 values generated by this perl code:
     39 
     40    my $pi = 3.1415;
     41    foreach my $i (1 .. 200) {
     42      printf "%d, ", sin($i/200 * 2 * $pi) * 5000 + 5000;
     43    }
     44 */
     45 static const unsigned int sinus[] = {
     46   5157, 5313, 5470, 5626, 5782, 5936, 6090, 6243, 6394, 6545, 6693, 6840, 6985,
     47   7128, 7269, 7408, 7545, 7679, 7810, 7938, 8064, 8187, 8306, 8422, 8535, 8644,
     48   8750, 8852, 8950, 9045, 9135, 9221, 9303, 9381, 9454, 9524, 9588, 9648, 9704,
     49   9755, 9801, 9842, 9879, 9911, 9938, 9960, 9977, 9990, 9997, 9999, 9997, 9990,
     50   9977, 9960, 9938, 9911, 9879, 9842, 9801, 9755, 9704, 9648, 9588, 9524, 9455,
     51   9381, 9303, 9221, 9135, 9045, 8950, 8852, 8750, 8645, 8535, 8422, 8306, 8187,
     52   8064, 7939, 7810, 7679, 7545, 7409, 7270, 7129, 6986, 6841, 6694, 6545, 6395,
     53   6243, 6091, 5937, 5782, 5627, 5470, 5314, 5157, 5000, 4843, 4686, 4529, 4373,
     54   4218, 4063, 3909, 3757, 3605, 3455, 3306, 3159, 3014, 2871, 2730, 2591, 2455,
     55   2321, 2190, 2061, 1935, 1813, 1693, 1577, 1464, 1355, 1249, 1147, 1049, 955,
     56   864, 778, 696, 618, 545, 476, 411, 351, 295, 244, 198, 157, 120, 88, 61, 39,
     57   22, 9, 2, 0, 2, 9, 22, 39, 61, 88, 120, 156, 198, 244, 295, 350, 410, 475,
     58   544, 618, 695, 777, 864, 954, 1048, 1146, 1248, 1354, 1463, 1576, 1692, 1812,
     59   1934, 2060, 2188, 2320, 2454, 2590, 2729, 2870, 3013, 3158, 3305, 3454, 3604,
     60   3755, 3908, 4062, 4216, 4372, 4528, 4685, 4842, 4999
     61 };
     62 
     63 static void fly(struct ProgressData *bar, bool moved)
     64 {
     65   char buf[256];
     66   int pos;
     67   int check = bar->width - 2;
     68 
     69   snprintf(buf, sizeof(buf), "%*s\r", bar->width-1, " ");
     70   memcpy(&buf[bar->bar], "-=O=-", 5);
     71 
     72   pos = sinus[bar->tick%200] / (10000 / check);
     73   buf[pos] = '#';
     74   pos = sinus[(bar->tick + 5)%200] / (10000 / check);
     75   buf[pos] = '#';
     76   pos = sinus[(bar->tick + 10)%200] / (10000 / check);
     77   buf[pos] = '#';
     78   pos = sinus[(bar->tick + 15)%200] / (10000 / check);
     79   buf[pos] = '#';
     80 
     81   fputs(buf, stderr);
     82   bar->tick += 2;
     83   if(bar->tick >= 200)
     84     bar->tick -= 200;
     85 
     86   bar->bar += (moved?bar->barmove:0);
     87   if(bar->bar >= (bar->width - 6)) {
     88     bar->barmove = -1;
     89     bar->bar = bar->width - 6;
     90   }
     91   else if(bar->bar < 0) {
     92     bar->barmove = 1;
     93     bar->bar = 0;
     94   }
     95 }
     96 
     97 /*
     98 ** callback for CURLOPT_XFERINFOFUNCTION
     99 */
    100 
    101 #define MAX_BARLENGTH 256
    102 
    103 int tool_progress_cb(void *clientp,
    104                      curl_off_t dltotal, curl_off_t dlnow,
    105                      curl_off_t ultotal, curl_off_t ulnow)
    106 {
    107   /* The original progress-bar source code was written for curl by Lars Aas,
    108      and this new edition inherits some of his concepts. */
    109 
    110   char line[MAX_BARLENGTH + 1];
    111   char format[40];
    112   double frac;
    113   double percent;
    114   int barwidth;
    115   int num;
    116   struct timeval now = tvnow();
    117   struct ProgressData *bar = (struct ProgressData *)clientp;
    118   curl_off_t total;
    119   curl_off_t point;
    120 
    121   /* expected transfer size */
    122   total = dltotal + ultotal + bar->initial_size;
    123 
    124   /* we've come this far */
    125   point = dlnow + ulnow + bar->initial_size;
    126 
    127   if(bar->calls) {
    128     /* after first call... */
    129     if(total) {
    130       /* we know the total data to get... */
    131       if(bar->prev == point)
    132         /* progress didn't change since last invoke */
    133         return 0;
    134       else if((tvdiff(now, bar->prevtime) < 100L) && point < total)
    135         /* limit progress-bar updating to 10 Hz except when we're at 100% */
    136         return 0;
    137     }
    138     else {
    139       /* total is unknown */
    140       if(tvdiff(now, bar->prevtime) < 100L)
    141         /* limit progress-bar updating to 10 Hz */
    142         return 0;
    143       fly(bar, point != bar->prev);
    144     }
    145   }
    146 
    147   /* simply count invokes */
    148   bar->calls++;
    149 
    150   if((total > 0) && (point != bar->prev)) {
    151     if(point > total)
    152       /* we have got more than the expected total! */
    153       total = point;
    154 
    155     frac = (double)point / (double)total;
    156     percent = frac * 100.0;
    157     barwidth = bar->width - 7;
    158     num = (int) (((double)barwidth) * frac);
    159     if(num > MAX_BARLENGTH)
    160       num = MAX_BARLENGTH;
    161     memset(line, '#', num);
    162     line[num] = '\0';
    163     snprintf(format, sizeof(format), "\r%%-%ds %%5.1f%%%%", barwidth);
    164     fprintf(bar->out, format, line, percent);
    165   }
    166   fflush(bar->out);
    167   bar->prev = point;
    168   bar->prevtime = now;
    169 
    170   return 0;
    171 }
    172 
    173 void progressbarinit(struct ProgressData *bar,
    174                      struct OperationConfig *config)
    175 {
    176   char *colp;
    177   memset(bar, 0, sizeof(struct ProgressData));
    178 
    179   /* pass this through to progress function so
    180    * it can display progress towards total file
    181    * not just the part that's left. (21-may-03, dbyron) */
    182   if(config->use_resume)
    183     bar->initial_size = config->resume_from;
    184 
    185   colp = curlx_getenv("COLUMNS");
    186   if(colp) {
    187     char *endptr;
    188     long num = strtol(colp, &endptr, 10);
    189     if((endptr != colp) && (endptr == colp + strlen(colp)) && (num > 20))
    190       bar->width = (int)num;
    191     curl_free(colp);
    192   }
    193 
    194   if(!bar->width) {
    195     int cols = 0;
    196 
    197 #ifdef TIOCGSIZE
    198     struct ttysize ts;
    199     if(!ioctl(STDIN_FILENO, TIOCGSIZE, &ts))
    200       cols = ts.ts_cols;
    201 #elif defined(TIOCGWINSZ)
    202     struct winsize ts;
    203     if(!ioctl(STDIN_FILENO, TIOCGWINSZ, &ts))
    204       cols = ts.ws_col;
    205 #elif defined(_WIN32)
    206     {
    207       HANDLE  stderr_hnd = GetStdHandle(STD_ERROR_HANDLE);
    208       CONSOLE_SCREEN_BUFFER_INFO console_info;
    209 
    210       if((stderr_hnd != INVALID_HANDLE_VALUE) &&
    211          GetConsoleScreenBufferInfo(stderr_hnd, &console_info)) {
    212         /*
    213          * Do not use +1 to get the true screen-width since writing a
    214          * character at the right edge will cause a line wrap.
    215          */
    216         cols = (int)
    217           (console_info.srWindow.Right - console_info.srWindow.Left);
    218       }
    219     }
    220 #endif /* TIOCGSIZE */
    221     bar->width = cols;
    222   }
    223 
    224   if(!bar->width)
    225     bar->width = 79;
    226   else if(bar->width > MAX_BARLENGTH)
    227     bar->width = MAX_BARLENGTH;
    228 
    229   bar->out = config->global->errors;
    230   bar->tick = 150;
    231   bar->barmove = 1;
    232 }
    233