[Xfce4-commits] <xfce4-taskmanager:master> Implement new function pid_is_sleeping()

[Mike Massonnet]

Updating branch refs/heads/master
         to 1788e3c2201d05c5cef5026756c7e96edb075b74 (commit)
       from 07131a81b3b52a5b856c81e2bc353a6b2d22f8fe (commit)

commit 1788e3c2201d05c5cef5026756c7e96edb075b74
Author: Mike Massonnet <mmassonnet at xfce.org>
Date:   Sun May 9 01:34:56 2010 +0200

    Implement new function pid_is_sleeping()
    
    The function pid_is_sleeping() is implement by the different OS
    implementations and returns TRUE or FALSE. It is used in the tree view
    context menu to show either the signal Stop or Continue.

 src/process-tree-view.c  |   25 ++++++++++++++-----------
 src/task-manager-linux.c |   18 +++++++++++++++++-
 2 files changed, 31 insertions(+), 12 deletions(-)

diff --git a/src/process-tree-view.c b/src/process-tree-view.c
index 5b0bdcc..7fb7374 100644
--- a/src/process-tree-view.c
+++ b/src/process-tree-view.c
@@ -185,17 +185,20 @@ build_context_menu (guint pid)
 	gtk_container_add (GTK_CONTAINER (menu), mi);
 	g_signal_connect (mi, "activate", G_CALLBACK (cb_send_signal), GINT_TO_POINTER (XTM_SIGNAL_TERMINATE));
 
-	// TODO look up task for building menu with either Stop or Continue and in an OS-independent way
-	// if (pid_is_sleeping (pid))
-	mi = gtk_menu_item_new_with_label (_("Stop"));
-	g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
-	gtk_container_add (GTK_CONTAINER (menu), mi);
-	g_signal_connect (mi, "activate", G_CALLBACK (cb_send_signal), GINT_TO_POINTER (XTM_SIGNAL_STOP));
-
-	mi = gtk_menu_item_new_with_label (_("Continue"));
-	g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
-	gtk_container_add (GTK_CONTAINER (menu), mi);
-	g_signal_connect (mi, "activate", G_CALLBACK (cb_send_signal), GINT_TO_POINTER (XTM_SIGNAL_CONTINUE));
+	if (!pid_is_sleeping (pid))
+	{
+		mi = gtk_menu_item_new_with_label (_("Stop"));
+		g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
+		gtk_container_add (GTK_CONTAINER (menu), mi);
+		g_signal_connect (mi, "activate", G_CALLBACK (cb_send_signal), GINT_TO_POINTER (XTM_SIGNAL_STOP));
+	}
+	else
+	{
+		mi = gtk_menu_item_new_with_label (_("Continue"));
+		g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
+		gtk_container_add (GTK_CONTAINER (menu), mi);
+		g_signal_connect (mi, "activate", G_CALLBACK (cb_send_signal), GINT_TO_POINTER (XTM_SIGNAL_CONTINUE));
+	}
 
 	mi = gtk_menu_item_new_with_label (_("Kill"));
 	g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
diff --git a/src/task-manager-linux.c b/src/task-manager-linux.c
index 3d61ab7..ece59d5 100644
--- a/src/task-manager-linux.c
+++ b/src/task-manager-linux.c
@@ -310,7 +310,23 @@ get_task_list (GArray *task_list)
 gboolean
 pid_is_sleeping (guint pid)
 {
-	return TRUE;
+	FILE *file;
+	gchar filename[96];
+	gchar buffer[1024];
+	gchar state[2];
+
+	snprintf (filename, 96, "/proc/%i/status", pid);
+	if ((file = fopen (filename, "r")) == NULL)
+		return FALSE;
+
+	while (fgets (buffer, 1024, file) != NULL)
+	{
+		if (sscanf (buffer, "State:\t%1s", state) > 0)
+			break;
+	}
+	fclose (file);
+
+	return (state[0] == 'T') ? TRUE : FALSE;
 }
 
 gboolean