1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/* vi: ts=8 sts=4 sw=4
*
* $Id$
*
* libkstartperf.c: LD_PRELOAD library for startup time measurements.
*
* Copyright (C) 2000 Geert Jansen <[email protected]>
*
* Based heavily on kmapnotify.c:
*
* (C) 2000 Rik Hemsley <[email protected]>
* (C) 2000 Simon Hausmann <[email protected]>
* (C) 2000 Bill Soudan <[email protected]>
*/
#include <sys/time.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <X11/X.h>
#include <X11/Xlib.h>
#include <ltdl.h>
/* Prototypes */
int XMapWindow(Display *, Window);
int XMapRaised(Display *, Window);
void KDE_InterceptXMapRequest(Display *, Window);
void KDE_ShowPerformance();
/* Globals */
typedef Window (*KDE_XMapRequestSignature)(Display *, Window);
KDE_XMapRequestSignature KDE_RealXMapWindow = 0L;
KDE_XMapRequestSignature KDE_RealXMapRaised = 0L;
/* Functions */
int XMapWindow(Display * d, Window w)
{
if (KDE_RealXMapWindow == 0L)
{
KDE_InterceptXMapRequest(d, w);
KDE_ShowPerformance();
}
return KDE_RealXMapWindow(d, w);
}
int XMapRaised(Display * d, Window w)
{
if (KDE_RealXMapRaised == 0L)
{
KDE_InterceptXMapRequest(d, w);
KDE_ShowPerformance();
}
return KDE_RealXMapRaised(d, w);
}
void KDE_InterceptXMapRequest(Display * d, Window w)
{
lt_dlhandle handle;
handle = lt_dlopen("libX11.so");
if (handle == 0L)
handle = lt_dlopen("libX11.so.6");
if (handle == 0L)
{
fprintf(stderr, "kstartperf: Could not dlopen libX11\n");
exit(1);
}
KDE_RealXMapWindow = (KDE_XMapRequestSignature)lt_dlsym(handle, "XMapWindow");
if (KDE_RealXMapWindow == 0L)
{
fprintf(stderr, "kstartperf: Could not find symbol XMapWindow in libX11\n");
exit(1);
}
KDE_RealXMapRaised = (KDE_XMapRequestSignature)lt_dlsym(handle, "XMapRaised");
if (KDE_RealXMapRaised == 0L)
{
fprintf(stderr, "kstartperf: Could not find symbol XMapRaised in libX11\n");
exit(1);
}
}
void KDE_ShowPerformance()
{
char *env;
long l1, l2;
float dt;
struct timeval tv;
env = getenv("KSTARTPERF");
if (env == 0L)
{
fprintf(stderr, "kstartperf: $KSTARTPERF not set!\n");
exit(1);
}
if (sscanf(env, "%ld:%ld", &l1, &l2) != 2)
{
fprintf(stderr, "kstartperf: $KSTARTPERF illegal format\n");
exit(1);
}
if (gettimeofday(&tv, 0L) != 0)
{
fprintf(stderr, "kstartperf: gettimeofday() failed.\n");
exit(1);
}
dt = 1e3*(tv.tv_sec - l1) + 1e-3*(tv.tv_usec - l2);
fprintf(stderr, "\nkstartperf: measured startup time at %7.2f ms\n\n", dt);
}
|
