[Global]: loading init
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JerryALT
218
deps/curl/docs/examples/smooth-gtk-thread.c
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218
deps/curl/docs/examples/smooth-gtk-thread.c
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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/* <DESC>
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* A multi threaded application that uses a progress bar to show
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* status. It uses Gtk+ to make a smooth pulse.
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* </DESC>
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*/
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/*
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* Written by Jud Bishop after studying the other examples provided with
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* libcurl.
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*
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* To compile (on a single line):
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* gcc -ggdb `pkg-config --cflags --libs gtk+-2.0` -lcurl -lssl -lcrypto
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* -lgthread-2.0 -dl smooth-gtk-thread.c -o smooth-gtk-thread
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*/
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#include <stdio.h>
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#include <gtk/gtk.h>
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#include <glib.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <curl/curl.h>
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#define NUMT 4
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pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
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int j = 0;
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gint num_urls = 9; /* Just make sure this is less than urls[]*/
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const char * const urls[]= {
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"90022",
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"90023",
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"90024",
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"90025",
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"90026",
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"90027",
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"90028",
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"90029",
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"90030"
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};
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size_t write_file(void *ptr, size_t size, size_t nmemb, FILE *stream)
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{
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return fwrite(ptr, size, nmemb, stream);
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}
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static void run_one(gchar *http, int j)
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{
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FILE *outfile = fopen(urls[j], "wb");
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CURL *curl;
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curl = curl_easy_init();
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if(curl) {
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printf("j = %d\n", j);
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/* Set the URL and transfer type */
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curl_easy_setopt(curl, CURLOPT_URL, http);
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/* Write to the file */
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_file);
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curl_easy_perform(curl);
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fclose(outfile);
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curl_easy_cleanup(curl);
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}
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}
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void *pull_one_url(void *NaN)
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{
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/* protect the reading and increasing of 'j' with a mutex */
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pthread_mutex_lock(&lock);
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while(j < num_urls) {
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int i = j;
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j++;
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pthread_mutex_unlock(&lock);
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http = g_strdup_printf("https://example.com/%s", urls[i]);
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if(http) {
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run_one(http, i);
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g_free(http);
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}
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pthread_mutex_lock(&lock);
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}
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pthread_mutex_unlock(&lock);
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return NULL;
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}
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gboolean pulse_bar(gpointer data)
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{
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gdk_threads_enter();
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gtk_progress_bar_pulse(GTK_PROGRESS_BAR (data));
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gdk_threads_leave();
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/* Return true so the function will be called again;
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* returning false removes this timeout function.
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*/
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return TRUE;
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}
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void *create_thread(void *progress_bar)
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{
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pthread_t tid[NUMT];
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int i;
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/* Make sure I do not create more threads than urls. */
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for(i = 0; i < NUMT && i < num_urls ; i++) {
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int error = pthread_create(&tid[i],
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NULL, /* default attributes please */
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pull_one_url,
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NULL);
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if(0 != error)
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fprintf(stderr, "Couldn't run thread number %d, errno %d\n", i, error);
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else
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fprintf(stderr, "Thread %d, gets %s\n", i, urls[i]);
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}
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/* Wait for all threads to terminate. */
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for(i = 0; i < NUMT && i < num_urls; i++) {
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pthread_join(tid[i], NULL);
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fprintf(stderr, "Thread %d terminated\n", i);
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}
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/* This stops the pulsing if you have it turned on in the progress bar
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section */
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g_source_remove(GPOINTER_TO_INT(g_object_get_data(G_OBJECT(progress_bar),
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"pulse_id")));
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/* This destroys the progress bar */
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gtk_widget_destroy(progress_bar);
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/* [Un]Comment this out to kill the program rather than pushing close. */
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/* gtk_main_quit(); */
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return NULL;
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}
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static gboolean cb_delete(GtkWidget *window, gpointer data)
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{
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gtk_main_quit();
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return FALSE;
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}
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int main(int argc, char **argv)
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{
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GtkWidget *top_window, *outside_frame, *inside_frame, *progress_bar;
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/* Must initialize libcurl before any threads are started */
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curl_global_init(CURL_GLOBAL_ALL);
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/* Init thread */
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g_thread_init(NULL);
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gdk_threads_init();
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gdk_threads_enter();
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gtk_init(&argc, &argv);
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/* Base window */
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top_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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/* Frame */
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outside_frame = gtk_frame_new(NULL);
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gtk_frame_set_shadow_type(GTK_FRAME(outside_frame), GTK_SHADOW_OUT);
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gtk_container_add(GTK_CONTAINER(top_window), outside_frame);
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/* Frame */
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inside_frame = gtk_frame_new(NULL);
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gtk_frame_set_shadow_type(GTK_FRAME(inside_frame), GTK_SHADOW_IN);
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gtk_container_set_border_width(GTK_CONTAINER(inside_frame), 5);
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gtk_container_add(GTK_CONTAINER(outside_frame), inside_frame);
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/* Progress bar */
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progress_bar = gtk_progress_bar_new();
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gtk_progress_bar_pulse(GTK_PROGRESS_BAR (progress_bar));
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/* Make uniform pulsing */
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gint pulse_ref = g_timeout_add(300, pulse_bar, progress_bar);
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g_object_set_data(G_OBJECT(progress_bar), "pulse_id",
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GINT_TO_POINTER(pulse_ref));
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gtk_container_add(GTK_CONTAINER(inside_frame), progress_bar);
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gtk_widget_show_all(top_window);
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printf("gtk_widget_show_all\n");
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g_signal_connect(G_OBJECT (top_window), "delete-event",
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G_CALLBACK(cb_delete), NULL);
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if(!g_thread_create(&create_thread, progress_bar, FALSE, NULL) != 0)
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g_warning("cannot create the thread");
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gtk_main();
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gdk_threads_leave();
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printf("gdk_threads_leave\n");
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return 0;
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}
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