Added atk-bridge-log.patch and corresponding README

diff --git a/patches/atk-bridge-log.patch b/patches/atk-bridge-log.patch
new file mode 100644 (file)
index 0000000..060acaa
--- /dev/null
+++ b/patches/atk-bridge-log.patch
@@ -0,0 +1,43 @@
+Index: atk-bridge/bridge.c
+===================================================================
+--- atk-bridge/bridge.c        (revision 1010)
++++ atk-bridge/bridge.c        (working copy)
+@@ -731,6 +731,17 @@
+   CORBA_exception_free (&ev);
+ }
+ 
++static gint evcount = 0, evcount_orig = 0, evcount_semi = 0;
++static gboolean have_idle = FALSE;
++
++gboolean theoretical_sig_dispatch(gpointer data)
++{
++  have_idle = FALSE;
++  printf("%s: idle: %d %d\n", atk_object_get_name(atk_get_root()), evcount - evcount_orig, evcount - evcount_semi);
++  evcount_orig = evcount_semi = evcount;
++  return FALSE;
++}
++
+ static void
+ spi_atk_emit_eventv (const GObject         *gobject,
+                    long                   detail1,
+@@ -791,6 +802,20 @@
+     bridge_threads_leave (); 
+     Accessibility_Registry_notifyEvent (registry, 
+                                         &e, &ev);
++  if (!strcmp(e.type, "object:children-changed:add") ||
++      !strcmp(e.type, "object:children-changed:remove") ||
++      !strcmp(e.type, "object:property-change:accessible-parent") ||
++      !strncmp(e.type, "object:state-change", 19) ||
++      !strcmp(e.type, "object:property-change:accessible-role"))
++  {
++  }
++  else
++  {
++    if (evcount - evcount_semi > 10) printf("%s: semi: %d %s\n", atk_object_get_name(atk_get_root()), evcount - evcount_semi, e.type);
++    evcount_semi = evcount;
++  }
++printf("%s: %d: %s: %p %d %d\n", atk_object_get_name(atk_get_root()), ++evcount, e.type, gobject, detail1, detail2);
++if (!have_idle) g_idle_add(theoretical_sig_dispatch, NULL); have_idle = TRUE;
+     bridge_threads_enter ();
+ #ifdef SPI_BRIDGE_DEBUG
+     if (ev._major != CORBA_NO_EXCEPTION)

diff --git a/patches/atk-bridge-log.patch.README b/patches/atk-bridge-log.patch.README
new file mode 100644 (file)
index 0000000..302d339
--- /dev/null
+++ b/patches/atk-bridge-log.patch.README
@@ -0,0 +1,12 @@
+This is a patch to the original CORBA-based atk-bridge that causes it to
+log events to standard error.  Events are counted, and an idle handler
+is added when an event is received that logs the number of events that
+have occurred since it was last called.  This allows one to analyze
+the number of events that a program generated along with the amount of
+consolidation that could theoretically be done by deferring the sending
+to an idle handler.
+
+Lines starting with "semi" track the number of events that
+could be combined if certain types of events break the flow
+(currently all events other than object:children-changed,
+object:property-change:accessible-praent, and object:state-changed).