mutter/src/core/testasyncgetprop.c
Owen W. Taylor 4f079affea Fix set but not used variables
GCC 4.6 warns about variables that are set but never subsequently
used; fix all such instances.

https://bugzilla.gnome.org/show_bug.cgi?id=640469
2011-01-24 16:26:57 -05:00

497 lines
12 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2002 Havoc Pennington
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation.
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of The Open Group shall not be
* used in advertising or otherwise to promote the sale, use or other dealings
* in this Software without prior written authorization from The Open Group.
*/
#include "async-getprop.h"
#include <time.h>
#include <sys/time.h>
#include <sys/types.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <assert.h>
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef NULL
#define NULL ((void*) 0)
#endif
#ifdef HAVE_BACKTRACE
#include <execinfo.h>
static void
print_backtrace (void)
{
void *bt[500];
int bt_size;
int i;
char **syms;
bt_size = backtrace (bt, 500);
syms = backtrace_symbols (bt, bt_size);
i = 0;
while (i < bt_size)
{
fprintf (stderr, " %s\n", syms[i]);
++i;
}
free (syms);
}
#else
static void
print_backtrace (void)
{
fprintf (stderr, "Not compiled with backtrace support\n");
}
#endif
static int error_trap_depth = 0;
static int
x_error_handler (Display *xdisplay,
XErrorEvent *error)
{
char buf[64];
XGetErrorText (xdisplay, error->error_code, buf, 63);
if (error_trap_depth == 0)
{
print_backtrace ();
fprintf (stderr, "Unexpected X error: %s serial %ld error_code %d request_code %d minor_code %d)\n",
buf,
error->serial,
error->error_code,
error->request_code,
error->minor_code);
exit (1);
}
return 1; /* return value is meaningless */
}
static void
error_trap_push (Display *xdisplay)
{
++error_trap_depth;
}
static void
error_trap_pop (Display *xdisplay)
{
if (error_trap_depth == 0)
{
fprintf (stderr, "Error trap underflow!\n");
exit (1);
}
XSync (xdisplay, False); /* get all errors out of the queue */
--error_trap_depth;
}
static char*
my_strdup (const char *str)
{
char *s;
s = malloc (strlen (str) + 1);
if (s == NULL)
{
fprintf (stderr, "malloc failed\n");
exit (1);
}
strcpy (s, str);
return s;
}
static char*
atom_name (Display *display,
Atom atom)
{
if (atom == None)
{
return my_strdup ("None");
}
else
{
char *xname;
char *ret;
error_trap_push (display);
xname = XGetAtomName (display, atom);
error_trap_pop (display);
if (xname == NULL)
return my_strdup ("[unknown atom]");
ret = my_strdup (xname);
XFree (xname);
return ret;
}
}
#define ELAPSED(start_time, current_time) \
(((((double)current_time.tv_sec - start_time.tv_sec) * 1000000 + \
(current_time.tv_usec - start_time.tv_usec))) / 1000.0)
static struct timeval program_start_time;
static Bool
try_get_reply (Display *xdisplay,
AgGetPropertyTask *task)
{
if (ag_task_have_reply (task))
{
int result;
Atom actual_type;
int actual_format;
unsigned long n_items;
unsigned long bytes_after;
unsigned char *data;
char *name;
struct timeval current_time;
gettimeofday (&current_time, NULL);
printf (" %gms (we have a reply for property %ld)\n",
ELAPSED (program_start_time, current_time),
ag_task_get_property (task));
data = NULL;
name = atom_name (xdisplay,
ag_task_get_property (task));
printf (" %s on 0x%lx:\n", name,
ag_task_get_window (task));
free (name);
result = ag_task_get_reply_and_free (task,
&actual_type,
&actual_format,
&n_items,
&bytes_after,
&data);
task = NULL;
if (result != Success)
{
fprintf (stderr, " error code %d getting reply\n", result);
}
else
{
name = atom_name (xdisplay, actual_type);
printf (" actual_type = %s\n", name);
free (name);
printf (" actual_format = %d\n", actual_format);
printf (" n_items = %lu\n", n_items);
printf (" bytes_after = %lu\n", bytes_after);
printf (" data = \"%s\"\n", data ? (char*) data : "NULL");
}
return True;
}
return False;
}
static void run_speed_comparison (Display *xdisplay,
Window window);
int
main (int argc, char **argv)
{
Display *xdisplay;
int i;
int n_left;
int n_props;
Window window;
const char *window_str;
char *end;
Atom *props;
struct timeval current_time;
if (argc < 2)
{
fprintf (stderr, "specify window ID\n");
return 1;
}
window_str = argv[1];
end = NULL;
window = strtoul (window_str, &end, 0);
if (end == NULL || *end != '\0')
{
fprintf (stderr, "\"%s\" does not parse as a window ID\n", window_str);
return 1;
}
xdisplay = XOpenDisplay (NULL);
if (xdisplay == NULL)
{
fprintf (stderr, "Could not open display\n");
return 1;
}
if (getenv ("MUTTER_SYNC") != NULL)
XSynchronize (xdisplay, True);
XSetErrorHandler (x_error_handler);
n_props = 0;
props = XListProperties (xdisplay, window, &n_props);
if (n_props == 0 || props == NULL)
{
fprintf (stderr, "Window has no properties\n");
return 1;
}
gettimeofday (&program_start_time, NULL);
i = 0;
while (i < n_props)
{
gettimeofday (&current_time, NULL);
printf (" %gms (sending request for property %ld)\n",
ELAPSED (program_start_time, current_time),
props[i]);
if (ag_task_create (xdisplay,
window, props[i],
0, 0xffffffff,
False,
AnyPropertyType) == NULL)
{
fprintf (stderr, "Failed to send request\n");
return 1;
}
++i;
}
XFree (props);
props = NULL;
n_left = n_props;
while (TRUE)
{
XEvent xevent;
int connection;
fd_set set;
AgGetPropertyTask *task;
/* Mop up event queue */
while (XPending (xdisplay) > 0)
{
XNextEvent (xdisplay, &xevent);
gettimeofday (&current_time, NULL);
printf (" %gms (processing event type %d)\n",
ELAPSED (program_start_time, current_time),
xevent.xany.type);
}
while ((task = ag_get_next_completed_task (xdisplay)))
{
try_get_reply (xdisplay, task);
n_left -= 1;
}
if (n_left == 0)
{
printf ("All %d replies received.\n", n_props);
break;
}
/* Wake up if we may have a reply */
connection = ConnectionNumber (xdisplay);
FD_ZERO (&set);
FD_SET (connection, &set);
gettimeofday (&current_time, NULL);
printf (" %gms (blocking for data %d left)\n",
ELAPSED (program_start_time, current_time), n_left);
select (connection + 1, &set, NULL, NULL, NULL);
}
run_speed_comparison (xdisplay, window);
return 0;
}
/* This function doesn't have all the printf's
* and other noise, it just compares async to sync
*/
static void
run_speed_comparison (Display *xdisplay,
Window window)
{
int i;
int n_props;
struct timeval start, end;
int n_left;
/* We just use atom values (0 to n_props) % 200, many are probably
* BadAtom, that's fine, but the %200 keeps most of them valid. The
* async case is about twice as advantageous when using valid atoms
* (or the issue may be that it's more advantageous when the
* properties are present and data is transmitted).
*/
n_props = 4000;
printf ("Timing with %d property requests\n", n_props);
gettimeofday (&start, NULL);
i = 0;
while (i < n_props)
{
if (ag_task_create (xdisplay,
window, (Atom) i % 200,
0, 0xffffffff,
False,
AnyPropertyType) == NULL)
{
fprintf (stderr, "Failed to send request\n");
exit (1);
}
++i;
}
n_left = n_props;
while (TRUE)
{
int connection;
fd_set set;
XEvent xevent;
AgGetPropertyTask *task;
/* Mop up event queue */
while (XPending (xdisplay) > 0)
XNextEvent (xdisplay, &xevent);
while ((task = ag_get_next_completed_task (xdisplay)))
{
Atom actual_type;
int actual_format;
unsigned long n_items;
unsigned long bytes_after;
unsigned char *data;
assert (ag_task_have_reply (task));
data = NULL;
ag_task_get_reply_and_free (task,
&actual_type,
&actual_format,
&n_items,
&bytes_after,
&data);
if (data)
XFree (data);
n_left -= 1;
}
if (n_left == 0)
break;
/* Wake up if we may have a reply */
connection = ConnectionNumber (xdisplay);
FD_ZERO (&set);
FD_SET (connection, &set);
select (connection + 1, &set, NULL, NULL, NULL);
}
gettimeofday (&end, NULL);
printf ("Async time: %gms\n",
ELAPSED (start, end));
gettimeofday (&start, NULL);
error_trap_push (xdisplay);
i = 0;
while (i < n_props)
{
Atom actual_type;
int actual_format;
unsigned long n_items;
unsigned long bytes_after;
unsigned char *data;
data = NULL;
if (XGetWindowProperty (xdisplay, window,
(Atom) i % 200,
0, 0xffffffff,
False,
AnyPropertyType,
&actual_type,
&actual_format,
&n_items,
&bytes_after,
&data) == Success)
{
if (data)
XFree (data);
}
++i;
}
error_trap_pop (xdisplay);
gettimeofday (&end, NULL);
printf ("Sync time: %gms\n",
ELAPSED (start, end));
}