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Annotation of embedaddon/curl/docs/examples/curlgtk.c, revision 1.1.1.1

1.1       misho       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: }