2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
5 * Copyright (c) 2015, Rob Norris <rw_norris@hotmail.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <glib/gi18n.h>
26 #include "background.h"
30 static GThreadPool *thread_pool_remote = NULL;
31 static GThreadPool *thread_pool_local = NULL;
32 static gboolean stop_all_threads = FALSE;
34 static GtkWidget *bgwindow = NULL;
35 static GtkWidget *bgtreeview = NULL;
36 static GtkListStore *bgstore = NULL;
38 // Still only actually updating the statusbar though
39 static GSList *windows_to_update = NULL;
41 static gint bgitemcount = 0;
43 #define VIK_BG_NUM_ARGS 7
53 void a_background_update_status ( VikWindow *vw, gpointer data )
56 g_snprintf(buf, sizeof(buf), _("%d items"), bgitemcount);
57 vik_window_statusbar_update ( vw, buf, VIK_STATUSBAR_ITEMS );
60 static void background_thread_update ()
62 g_slist_foreach ( windows_to_update, (GFunc) a_background_update_status, NULL );
65 int a_background_thread_progress ( gpointer callbackdata, gdouble fraction )
67 gpointer *args = (gpointer *) callbackdata;
68 int res = a_background_testcancel ( callbackdata );
69 if (args[5] != NULL) {
71 gtk_list_store_set( GTK_LIST_STORE(bgstore), (GtkTreeIter *) args[5], PROGRESS_COLUMN, fraction*100, -1 );
75 args[6] = GINT_TO_POINTER(GPOINTER_TO_INT(args[6])-1);
77 background_thread_update();
81 static void thread_die ( gpointer args[VIK_BG_NUM_ARGS] )
83 vik_thr_free_func userdata_free_func = args[3];
85 if ( userdata_free_func != NULL )
86 userdata_free_func ( args[2] );
88 if ( GPOINTER_TO_INT(args[6]) )
90 bgitemcount -= GPOINTER_TO_INT(args[6]);
91 background_thread_update ();
94 g_free ( args[5] ); /* free iter */
98 int a_background_testcancel ( gpointer callbackdata )
100 gpointer *args = (gpointer *) callbackdata;
101 if ( stop_all_threads )
103 if ( args && args[0] )
105 vik_thr_free_func cleanup = args[4];
113 static void thread_helper ( gpointer args[VIK_BG_NUM_ARGS], gpointer user_data )
116 vik_thr_func func = args[1];
117 gpointer userdata = args[2];
119 g_debug(__FUNCTION__);
121 func ( userdata, args );
125 gtk_list_store_remove ( bgstore, (GtkTreeIter *) args[5] );
132 * a_background_thread:
133 * @bp: Which pool this thread should run in
136 * @func: worker function
138 * @userdata_free_func: free function for userdata
139 * @userdata_cancel_cleanup_func:
142 * Function to enlist new background function.
144 void a_background_thread ( Background_Pool_Type bp, GtkWindow *parent, const gchar *message, vik_thr_func func, gpointer userdata, vik_thr_free_func userdata_free_func, vik_thr_free_func userdata_cancel_cleanup_func, gint number_items )
146 GtkTreeIter *piter = g_malloc ( sizeof ( GtkTreeIter ) );
147 gpointer *args = g_malloc ( sizeof(gpointer) * VIK_BG_NUM_ARGS );
149 g_debug(__FUNCTION__);
151 args[0] = GINT_TO_POINTER(0);
154 args[3] = userdata_free_func;
155 args[4] = userdata_cancel_cleanup_func;
157 args[6] = GINT_TO_POINTER(number_items);
159 bgitemcount += number_items;
161 gtk_list_store_append ( bgstore, piter );
162 gtk_list_store_set ( bgstore, piter,
163 TITLE_COLUMN, message,
164 PROGRESS_COLUMN, 0.0,
168 /* run the thread in the background */
169 if ( bp == BACKGROUND_POOL_REMOTE )
170 g_thread_pool_push( thread_pool_remote, args, NULL );
172 g_thread_pool_push( thread_pool_local, args, NULL );
176 * a_background_show_window:
178 * Display the background window.
180 void a_background_show_window ()
182 gtk_widget_show_all ( bgwindow );
185 static void cancel_job_with_iter ( GtkTreeIter *piter )
189 g_debug(__FUNCTION__);
191 gtk_tree_model_get( GTK_TREE_MODEL(bgstore), piter, DATA_COLUMN, &args, -1 );
193 /* we know args still exists because it is free _after_ the list item is destroyed */
195 args[0] = GINT_TO_POINTER(1); /* set killswitch */
197 gtk_list_store_remove ( bgstore, piter );
201 static void bgwindow_response (GtkDialog *dialog, gint arg1 )
203 /* note this function is a signal handler called back from the GTK main loop,
204 * so GDK is already locked. We need to release the lock before calling
205 * thread-safe routines
207 if ( arg1 == 1 ) /* cancel */
210 if ( gtk_tree_selection_get_selected ( gtk_tree_view_get_selection ( GTK_TREE_VIEW(bgtreeview) ), NULL, &iter ) )
211 cancel_job_with_iter ( &iter );
213 background_thread_update();
216 else if ( arg1 == 2 ) /* clear */
219 while ( gtk_tree_model_get_iter_first ( GTK_TREE_MODEL(bgstore), &iter ) )
220 cancel_job_with_iter ( &iter );
222 background_thread_update();
226 gtk_widget_hide ( bgwindow );
229 #define VIK_SETTINGS_BACKGROUND_MAX_THREADS "background_max_threads"
230 #define VIK_SETTINGS_BACKGROUND_MAX_THREADS_LOCAL "background_max_threads_local"
235 * Initialize background feature.
237 void a_background_init()
239 // initialize thread pools
240 gint max_threads = 10; /* limit maximum number of threads running at one time */
242 if ( a_settings_get_integer ( VIK_SETTINGS_BACKGROUND_MAX_THREADS, &maxt ) )
245 thread_pool_remote = g_thread_pool_new ( (GFunc) thread_helper, NULL, max_threads, FALSE, NULL );
247 if ( a_settings_get_integer ( VIK_SETTINGS_BACKGROUND_MAX_THREADS_LOCAL, &maxt ) )
250 guint cpus = util_get_number_of_cpus ();
251 max_threads = cpus > 1 ? cpus-1 : 1; // Don't use all available CPUs!
254 thread_pool_local = g_thread_pool_new ( (GFunc) thread_helper, NULL, max_threads, FALSE, NULL );
256 GtkCellRenderer *renderer;
257 GtkTreeViewColumn *column;
258 GtkWidget *scrolled_window;
260 g_debug(__FUNCTION__);
262 /* store & treeview */
263 bgstore = gtk_list_store_new ( N_COLUMNS, G_TYPE_STRING, G_TYPE_DOUBLE, G_TYPE_POINTER );
264 bgtreeview = gtk_tree_view_new_with_model ( GTK_TREE_MODEL(bgstore) );
265 gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (bgtreeview), TRUE);
266 gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (bgtreeview)),
267 GTK_SELECTION_SINGLE);
270 renderer = gtk_cell_renderer_text_new ();
271 column = gtk_tree_view_column_new_with_attributes ( _("Job"), renderer, "text", TITLE_COLUMN, NULL );
272 gtk_tree_view_append_column ( GTK_TREE_VIEW(bgtreeview), column );
274 renderer = gtk_cell_renderer_progress_new ();
275 column = gtk_tree_view_column_new_with_attributes ( _("Progress"), renderer, "value", PROGRESS_COLUMN, NULL );
276 gtk_tree_view_append_column ( GTK_TREE_VIEW(bgtreeview), column );
279 scrolled_window = gtk_scrolled_window_new ( NULL, NULL );
280 gtk_container_add ( GTK_CONTAINER(scrolled_window), bgtreeview );
281 gtk_scrolled_window_set_policy ( GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
283 bgwindow = gtk_dialog_new_with_buttons ( "", NULL, 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_DELETE, 1, GTK_STOCK_CLEAR, 2, NULL );
284 gtk_dialog_set_default_response ( GTK_DIALOG(bgwindow), GTK_RESPONSE_ACCEPT );
285 GtkWidget *response_w = NULL;
286 #if GTK_CHECK_VERSION (2, 20, 0)
287 response_w = gtk_dialog_get_widget_for_response ( GTK_DIALOG(bgwindow), GTK_RESPONSE_ACCEPT );
289 gtk_box_pack_start ( GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(bgwindow))), scrolled_window, TRUE, TRUE, 0 );
290 gtk_window_set_default_size ( GTK_WINDOW(bgwindow), 400, 400 );
291 gtk_window_set_title ( GTK_WINDOW(bgwindow), _("Viking Background Jobs") );
293 gtk_widget_grab_focus ( response_w );
294 /* don't destroy win */
295 g_signal_connect ( G_OBJECT(bgwindow), "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), NULL );
297 g_signal_connect ( G_OBJECT(bgwindow), "response", G_CALLBACK(bgwindow_response), 0 );
302 * a_background_uninit:
304 * Uninitialize background feature.
306 void a_background_uninit()
308 stop_all_threads = TRUE;
309 // wait until these threads stop
310 g_thread_pool_free ( thread_pool_remote, TRUE, TRUE );
311 // Don't wait for these
312 g_thread_pool_free ( thread_pool_local, TRUE, FALSE );
314 gtk_list_store_clear ( bgstore );
315 g_object_unref ( bgstore );
317 gtk_widget_destroy ( bgwindow );
320 void a_background_add_window (VikWindow *vw)
322 windows_to_update = g_slist_prepend(windows_to_update,vw);
325 void a_background_remove_window (VikWindow *vw)
327 windows_to_update = g_slist_remove(windows_to_update,vw);