123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218 |
- /***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 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.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.
- *
- * SPDX-License-Identifier: curl
- *
- ***************************************************************************/
- /* <DESC>
- * A multi threaded application that uses a progress bar to show
- * status. It uses Gtk+ to make a smooth pulse.
- * </DESC>
- */
- /*
- * Written by Jud Bishop after studying the other examples provided with
- * libcurl.
- *
- * To compile (on a single line):
- * gcc -ggdb `pkg-config --cflags --libs gtk+-2.0` -lcurl -lssl -lcrypto
- * -lgthread-2.0 -dl smooth-gtk-thread.c -o smooth-gtk-thread
- */
- #include <stdio.h>
- #include <gtk/gtk.h>
- #include <glib.h>
- #include <unistd.h>
- #include <pthread.h>
- #include <curl/curl.h>
- #define NUMT 4
- pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
- int j = 0;
- gint num_urls = 9; /* Just make sure this is less than urls[]*/
- const char * const urls[]= {
- "90022",
- "90023",
- "90024",
- "90025",
- "90026",
- "90027",
- "90028",
- "90029",
- "90030"
- };
- size_t write_file(void *ptr, size_t size, size_t nmemb, FILE *stream)
- {
- return fwrite(ptr, size, nmemb, stream);
- }
- static void run_one(gchar *http, int j)
- {
- FILE *outfile = fopen(urls[j], "wb");
- CURL *curl;
- curl = curl_easy_init();
- if(curl) {
- printf("j = %d\n", j);
- /* Set the URL and transfer type */
- curl_easy_setopt(curl, CURLOPT_URL, http);
- /* Write to the file */
- curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
- curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_file);
- curl_easy_perform(curl);
- fclose(outfile);
- curl_easy_cleanup(curl);
- }
- }
- void *pull_one_url(void *NaN)
- {
- /* protect the reading and increasing of 'j' with a mutex */
- pthread_mutex_lock(&lock);
- while(j < num_urls) {
- int i = j;
- j++;
- pthread_mutex_unlock(&lock);
- http = g_strdup_printf("https://example.com/%s", urls[i]);
- if(http) {
- run_one(http, i);
- g_free(http);
- }
- pthread_mutex_lock(&lock);
- }
- pthread_mutex_unlock(&lock);
- return NULL;
- }
- gboolean pulse_bar(gpointer data)
- {
- gdk_threads_enter();
- gtk_progress_bar_pulse(GTK_PROGRESS_BAR (data));
- gdk_threads_leave();
- /* Return true so the function is called again; returning false removes this
- * timeout function.
- */
- return TRUE;
- }
- void *create_thread(void *progress_bar)
- {
- pthread_t tid[NUMT];
- int i;
- /* Make sure I do not create more threads than urls. */
- for(i = 0; i < NUMT && i < num_urls ; i++) {
- int error = pthread_create(&tid[i],
- NULL, /* default attributes please */
- pull_one_url,
- NULL);
- if(0 != error)
- fprintf(stderr, "Couldn't run thread number %d, errno %d\n", i, error);
- else
- fprintf(stderr, "Thread %d, gets %s\n", i, urls[i]);
- }
- /* Wait for all threads to terminate. */
- for(i = 0; i < NUMT && i < num_urls; i++) {
- pthread_join(tid[i], NULL);
- fprintf(stderr, "Thread %d terminated\n", i);
- }
- /* This stops the pulsing if you have it turned on in the progress bar
- section */
- g_source_remove(GPOINTER_TO_INT(g_object_get_data(G_OBJECT(progress_bar),
- "pulse_id")));
- /* This destroys the progress bar */
- gtk_widget_destroy(progress_bar);
- /* [Un]Comment this out to kill the program rather than pushing close. */
- /* gtk_main_quit(); */
- return NULL;
- }
- static gboolean cb_delete(GtkWidget *window, gpointer data)
- {
- gtk_main_quit();
- return FALSE;
- }
- int main(int argc, char **argv)
- {
- GtkWidget *top_window, *outside_frame, *inside_frame, *progress_bar;
- /* Must initialize libcurl before any threads are started */
- curl_global_init(CURL_GLOBAL_ALL);
- /* Init thread */
- g_thread_init(NULL);
- gdk_threads_init();
- gdk_threads_enter();
- gtk_init(&argc, &argv);
- /* Base window */
- top_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
- /* Frame */
- outside_frame = gtk_frame_new(NULL);
- gtk_frame_set_shadow_type(GTK_FRAME(outside_frame), GTK_SHADOW_OUT);
- gtk_container_add(GTK_CONTAINER(top_window), outside_frame);
- /* Frame */
- inside_frame = gtk_frame_new(NULL);
- gtk_frame_set_shadow_type(GTK_FRAME(inside_frame), GTK_SHADOW_IN);
- gtk_container_set_border_width(GTK_CONTAINER(inside_frame), 5);
- gtk_container_add(GTK_CONTAINER(outside_frame), inside_frame);
- /* Progress bar */
- progress_bar = gtk_progress_bar_new();
- gtk_progress_bar_pulse(GTK_PROGRESS_BAR (progress_bar));
- /* Make uniform pulsing */
- gint pulse_ref = g_timeout_add(300, pulse_bar, progress_bar);
- g_object_set_data(G_OBJECT(progress_bar), "pulse_id",
- GINT_TO_POINTER(pulse_ref));
- gtk_container_add(GTK_CONTAINER(inside_frame), progress_bar);
- gtk_widget_show_all(top_window);
- printf("gtk_widget_show_all\n");
- g_signal_connect(G_OBJECT (top_window), "delete-event",
- G_CALLBACK(cb_delete), NULL);
- if(!g_thread_create(&create_thread, progress_bar, FALSE, NULL) != 0)
- g_warning("cannot create the thread");
- gtk_main();
- gdk_threads_leave();
- printf("gdk_threads_leave\n");
- return 0;
- }
|