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Make the chunk size for incremental transfers depend on the maximal

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2004-05-03  Matthias Clasen  <mclasen@redhat.com>

	* gtk/gtkselection.c: Make the chunk size for
	incremental transfers depend on the maximal request
	size, capped at 256k. This should allow most selections
	to be transferred nonincrementally, avoiding many
	roundtrips and protocol overhead.
This commit is contained in:
Matthias Clasen 2004-05-03 19:53:23 +00:00 committed by Matthias Clasen
parent 86684b455b
commit 93fde87343
6 changed files with 69 additions and 11 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2004-05-03 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkselection.c: Make the chunk size for
incremental transfers depend on the maximal request
size, capped at 256k. This should allow most selections
to be transferred nonincrementally, avoiding many
roundtrips and protocol overhead.
2004-05-03 Federico Mena Quintero <federico@ximian.com>
* gtk/gtkuimanager.c (gtk_ui_manager_class_init): Call

8
ChangeLog.pre-2-10
View File

@ -1,3 +1,11 @@
2004-05-03 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkselection.c: Make the chunk size for
incremental transfers depend on the maximal request
size, capped at 256k. This should allow most selections
to be transferred nonincrementally, avoiding many
roundtrips and protocol overhead.
2004-05-03 Federico Mena Quintero <federico@ximian.com>
* gtk/gtkuimanager.c (gtk_ui_manager_class_init): Call

8
ChangeLog.pre-2-4
View File

@ -1,3 +1,11 @@
2004-05-03 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkselection.c: Make the chunk size for
incremental transfers depend on the maximal request
size, capped at 256k. This should allow most selections
to be transferred nonincrementally, avoiding many
roundtrips and protocol overhead.
2004-05-03 Federico Mena Quintero <federico@ximian.com>
* gtk/gtkuimanager.c (gtk_ui_manager_class_init): Call

8
ChangeLog.pre-2-6
View File

@ -1,3 +1,11 @@
2004-05-03 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkselection.c: Make the chunk size for
incremental transfers depend on the maximal request
size, capped at 256k. This should allow most selections
to be transferred nonincrementally, avoiding many
roundtrips and protocol overhead.
2004-05-03 Federico Mena Quintero <federico@ximian.com>
* gtk/gtkuimanager.c (gtk_ui_manager_class_init): Call

8
ChangeLog.pre-2-8
View File

@ -1,3 +1,11 @@
2004-05-03 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkselection.c: Make the chunk size for
incremental transfers depend on the maximal request
size, capped at 256k. This should allow most selections
to be transferred nonincrementally, avoiding many
roundtrips and protocol overhead.
2004-05-03 Federico Mena Quintero <federico@ximian.com>
* gtk/gtkuimanager.c (gtk_ui_manager_class_init): Call

36
gtk/gtkselection.c
View File

@ -63,15 +63,19 @@
#include "x11/gdkx.h"
#endif
/* #define DEBUG_SELECTION */
#define DEBUG_SELECTION
/* Maximum size of a sent chunk, in bytes. Also the default size of
our buffers */
#ifdef GDK_WINDOWING_WIN32
/* No chunks on Win32 */
#define GTK_SELECTION_MAX_SIZE G_MAXINT
#define GTK_SELECTION_MAX_SIZE(display) G_MAXINT
#else
#define GTK_SELECTION_MAX_SIZE 4000
#define GTK_SELECTION_MAX_SIZE(display) \
MIN(262144, \
XExtendedMaxRequestSize (GDK_DISPLAY_XDISPLAY (display)) == 0 \
? XMaxRequestSize (GDK_DISPLAY_XDISPLAY (display)) - 100 \
: XExtendedMaxRequestSize (GDK_DISPLAY_XDISPLAY (display)) - 100)
#endif
#define IDLE_ABORT_TIME 300
@ -1115,10 +1119,16 @@ _gtk_selection_request (GtkWidget *widget,
GtkIncrInfo *info;
GList *tmp_list;
int i;
gulong selection_max_size;
if (initialize)
gtk_selection_init ();
g_message ("max request sizes %ld %ld\n",
XMaxRequestSize(GDK_DISPLAY_XDISPLAY(display)),
XExtendedMaxRequestSize(GDK_DISPLAY_XDISPLAY(display)));
selection_max_size = GTK_SELECTION_MAX_SIZE (display);
/* Check if we own selection */
tmp_list = current_selections;
@ -1164,7 +1174,7 @@ _gtk_selection_request (GtkWidget *widget,
gdk_error_trap_push ();
if (!gdk_property_get (info->requestor, event->property, GDK_NONE, /* AnyPropertyType */
0, GTK_SELECTION_MAX_SIZE, FALSE,
0, selection_max_size, FALSE,
&type, &format, &length, &mult_atoms))
{
gdk_selection_send_notify_for_display (display,
@ -1234,7 +1244,8 @@ _gtk_selection_request (GtkWidget *widget,
#ifdef DEBUG_SELECTION
g_message ("Selection %ld, target %ld (%s) requested by 0x%x (property = %ld)",
event->selection, info->conversions[i].target,
event->selection,
info->conversions[i].target,
gdk_atom_name (info->conversions[i].target),
event->requestor, info->conversions[i].property);
#endif
@ -1251,9 +1262,13 @@ _gtk_selection_request (GtkWidget *widget,
items = data.length / gtk_selection_bytes_per_item (data.format);
if (data.length > GTK_SELECTION_MAX_SIZE)
if (data.length > selection_max_size)
{
/* Sending via INCR */
#ifdef DEBUG_SELECTION
g_message ("Target larger (%d) than max. request size (%ld), sending incrementally\n",
data.length, selection_max_size);
#endif
info->conversions[i].offset = 0;
info->conversions[i].data = data;
@ -1373,6 +1388,7 @@ _gtk_selection_incr_event (GdkWindow *window,
GtkIncrInfo *info = NULL;
gint num_bytes;
guchar *buffer;
gulong selection_max_size;
int i;
@ -1383,6 +1399,8 @@ _gtk_selection_incr_event (GdkWindow *window,
g_message ("PropertyDelete, property %ld", event->atom);
#endif
selection_max_size = GTK_SELECTION_MAX_SIZE (gdk_drawable_get_display (window));
/* Now find the appropriate ongoing INCR */
tmp_list = current_incrs;
while (tmp_list)
@ -1420,10 +1438,10 @@ _gtk_selection_incr_event (GdkWindow *window,
buffer = info->conversions[i].data.data +
info->conversions[i].offset;
if (num_bytes > GTK_SELECTION_MAX_SIZE)
if (num_bytes > selection_max_size)
{
num_bytes = GTK_SELECTION_MAX_SIZE;
info->conversions[i].offset += GTK_SELECTION_MAX_SIZE;
num_bytes = selection_max_size;
info->conversions[i].offset += selection_max_size;
}
else
info->conversions[i].offset = -2;