static gboolean net_io_do(GtkWidget *parent, net_io_request_t *request) {
/* the request structure is shared between master and worker thread. */
/* typically the master thread will do some waiting until the worker */
/* thread returns. But the master may very well stop waiting since e.g. */
/* the user activated some cancel button. The client will learn this */
/* from the fact that it's holding the only reference to the request */
GtkWidget *pbar = NULL;
GtkWidget *dialog = busy_dialog(parent, &pbar, &request->cancel);
/* create worker thread */
request->refcount = 2; // master and worker hold a reference
if(!g_thread_create(&worker_thread, request, FALSE, NULL) != 0) {
g_warning("failed to create the worker thread");
/* free request and return error */
request->refcount--; /* decrease by one for dead worker thread */
gtk_widget_destroy(dialog);
return FALSE;
}
/* wait for worker thread */
float progress = 0;
while(request->refcount > 1 && !request->cancel) {
while(gtk_events_pending())
gtk_main_iteration();
/* worker has made progress changed the progress value */
if(request->progress != progress) {
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(pbar), request->progress);
progress = request->progress;
} else
if(!progress)
gtk_progress_bar_pulse(GTK_PROGRESS_BAR(pbar));
usleep(100000);
}
gtk_widget_destroy(dialog);
/* user pressed cancel */
if(request->refcount > 1) {
printf("operation cancelled, leave worker alone\n");
return FALSE;
}
printf("worker thread has ended\n");
/* --------- evaluate result --------- */
/* the http connection itself may have failed */
if(request->res != 0) {
errorf(parent, _("Download failed with message:\n\n%s"), request->buffer);
return FALSE;
}
/* a valid http connection may have returned an error */
if(request->response != 200) {
errorf(parent, _("Download failed with code %ld:\n\n%s\n"),
request->response, http_message(request->response));
return FALSE;
}
return TRUE;
}
static gboolean net_io_do(GtkWidget *parent, net_io_request_t *request,
const char *title) {
/* the request structure is shared between master and worker thread. */
/* typically the master thread will do some waiting until the worker */
/* thread returns. But the master may very well stop waiting since e.g. */
/* the user activated some cancel button. The client will learn this */
/* from the fact that it's holding the only reference to the request */
GtkProgressBar *pbar = NULL;
GtkWidget *dialog = busy_dialog(parent, &pbar, &request->cancel, title);
/* create worker thread */
request->refcount = 2; // master and worker hold a reference
GThread *worker;
#if GLIB_CHECK_VERSION(2,32,0)
worker = g_thread_try_new("download", &worker_thread, request, NULL);
#else
worker = g_thread_create(&worker_thread, request, FALSE, NULL);
#endif
if(worker == NULL) {
g_warning("failed to create the worker thread");
/* free request and return error */
request->refcount--; /* decrease by one for dead worker thread */
gtk_widget_destroy(dialog);
return FALSE;
}
/* wait for worker thread */
curl_off_t last = 0;
while(request->refcount > 1 && !request->cancel) {
while(gtk_events_pending())
gtk_main_iteration();
/* worker has made progress changed the progress value */
if(request->download_cur != last) {
if(request->download_end != 0) {
gdouble progress = (gdouble)request->download_cur / (gdouble)request->download_end;
gtk_progress_bar_set_fraction(pbar, progress);
} else {
gtk_progress_bar_pulse(pbar);
}
gchar buf[G_ASCII_DTOSTR_BUF_SIZE];
g_snprintf(buf, sizeof(buf), "%llu", (unsigned long long)request->download_cur);
gtk_progress_bar_set_text(pbar, buf);
}
usleep(100000);
}
#if GLIB_CHECK_VERSION(2,32,0)
g_thread_unref(worker);
#endif
gtk_widget_destroy(dialog);
/* user pressed cancel */
if(request->refcount > 1) {
printf("operation cancelled, leave worker alone\n");
return FALSE;
}
printf("worker thread has ended\n");
/* --------- evaluate result --------- */
/* the http connection itself may have failed */
if(request->res != 0) {
errorf(parent, _("Download failed with message:\n\n%s"), request->buffer);
return FALSE;
}
/* a valid http connection may have returned an error */
if(request->response != 200) {
errorf(parent, _("Download failed with code %ld:\n\n%s\n"),
request->response, http_message(request->response));
return FALSE;
}
return TRUE;
}
