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    1: /*****************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  *  Copyright (c) 2000 - 2019 David Odin (aka DindinX) for MandrakeSoft
    9:  */
   10: /* <DESC>
   11:  * use the libcurl in a gtk-threaded application
   12:  * </DESC>
   13:  */
   14: 
   15: #include <stdio.h>
   16: #include <gtk/gtk.h>
   17: 
   18: #include <curl/curl.h>
   19: 
   20: GtkWidget *Bar;
   21: 
   22: size_t my_write_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
   23: {
   24:   return fwrite(ptr, size, nmemb, stream);
   25: }
   26: 
   27: size_t my_read_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
   28: {
   29:   return fread(ptr, size, nmemb, stream);
   30: }
   31: 
   32: int my_progress_func(GtkWidget *bar,
   33:                      double t, /* dltotal */
   34:                      double d, /* dlnow */
   35:                      double ultotal,
   36:                      double ulnow)
   37: {
   38: /*  printf("%d / %d (%g %%)\n", d, t, d*100.0/t);*/
   39:   gdk_threads_enter();
   40:   gtk_progress_set_value(GTK_PROGRESS(bar), d*100.0/t);
   41:   gdk_threads_leave();
   42:   return 0;
   43: }
   44: 
   45: void *my_thread(void *ptr)
   46: {
   47:   CURL *curl;
   48: 
   49:   curl = curl_easy_init();
   50:   if(curl) {
   51:     gchar *url = ptr;
   52:     const char *filename = "test.curl";
   53:     FILE *outfile = fopen(filename, "wb");
   54: 
   55:     curl_easy_setopt(curl, CURLOPT_URL, url);
   56:     curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
   57:     curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_write_func);
   58:     curl_easy_setopt(curl, CURLOPT_READFUNCTION, my_read_func);
   59:     curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
   60:     curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, my_progress_func);
   61:     curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, Bar);
   62: 
   63:     curl_easy_perform(curl);
   64: 
   65:     fclose(outfile);
   66:     /* always cleanup */
   67:     curl_easy_cleanup(curl);
   68:   }
   69: 
   70:   return NULL;
   71: }
   72: 
   73: int main(int argc, char **argv)
   74: {
   75:   GtkWidget *Window, *Frame, *Frame2;
   76:   GtkAdjustment *adj;
   77: 
   78:   /* Must initialize libcurl before any threads are started */
   79:   curl_global_init(CURL_GLOBAL_ALL);
   80: 
   81:   /* Init thread */
   82:   g_thread_init(NULL);
   83: 
   84:   gtk_init(&argc, &argv);
   85:   Window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
   86:   Frame = gtk_frame_new(NULL);
   87:   gtk_frame_set_shadow_type(GTK_FRAME(Frame), GTK_SHADOW_OUT);
   88:   gtk_container_add(GTK_CONTAINER(Window), Frame);
   89:   Frame2 = gtk_frame_new(NULL);
   90:   gtk_frame_set_shadow_type(GTK_FRAME(Frame2), GTK_SHADOW_IN);
   91:   gtk_container_add(GTK_CONTAINER(Frame), Frame2);
   92:   gtk_container_set_border_width(GTK_CONTAINER(Frame2), 5);
   93:   adj = (GtkAdjustment*)gtk_adjustment_new(0, 0, 100, 0, 0, 0);
   94:   Bar = gtk_progress_bar_new_with_adjustment(adj);
   95:   gtk_container_add(GTK_CONTAINER(Frame2), Bar);
   96:   gtk_widget_show_all(Window);
   97: 
   98:   if(!g_thread_create(&my_thread, argv[1], FALSE, NULL) != 0)
   99:     g_warning("can't create the thread");
  100: 
  101: 
  102:   gdk_threads_enter();
  103:   gtk_main();
  104:   gdk_threads_leave();
  105:   return 0;
  106: }