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
|
/*
* Copyright (c) 1998, 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "timing.h"
#include "error_messages.h"
#include "JDWP.h"
#include "outStream.h"
#include "util.h"
// ANDROID-CHANGED: This whole file
// This system stores cmd processing timing and sends them to the debugger
// to generate profiling stats.
typedef struct Timing {
jlong start_ns;
jlong duration_ns;
jint id;
jint cmd_set;
jint cmd;
} Timing;
static const jint MAX_TIMINGS = 500;
static Timing timings[MAX_TIMINGS];
static jint numTimings;
void timings_startCmd(jint id, jint cmd_set, jint cmd) {
timings[numTimings].id = id;
timings[numTimings].cmd_set = cmd_set;
timings[numTimings].cmd = cmd;
timings[numTimings].start_ns = nsTime();
}
void timings_endCmd() {
timings[numTimings].duration_ns = nsTime() - timings[numTimings].start_ns;
numTimings++;
if (numTimings == MAX_TIMINGS) {
timings_flush();
}
}
// Return the size of the ARTT chunk
static jint getChunkSize() {
jint size = 0;
size += sizeof(jint); // version
size += sizeof(jint); // num timing entries.
size += numTimings * (sizeof(jint) * 3 + sizeof(jlong) * 2); // entries
return size;
}
void timings_flush() {
// Don't even waste a packet if we know it will contain no payload.
if (numTimings == 0) {
return;
}
PacketOutputStream packet;
outStream_initCommand(&packet, uniqueID(), 0, JDWP_COMMAND_SET(DDM), JDWP_COMMAND(DDM, Chunk));
outStream_writeInt(&packet, 'A' << 24 | 'R' << 16 | 'T' << 8 | 'T');// DDM chunk type
outStream_writeInt(&packet, getChunkSize()); // DDM chunk length
outStream_writeInt(&packet, 1); //version
outStream_writeInt(&packet, numTimings); // num timing entries
for(int i=0 ; i < numTimings ; i++) {
outStream_writeInt(&packet, timings[i].id);
outStream_writeInt(&packet, timings[i].cmd_set);
outStream_writeInt(&packet, timings[i].cmd);
outStream_writeLong(&packet, timings[i].start_ns);
outStream_writeLong(&packet, timings[i].duration_ns);
}
outStream_sendCommand(&packet);
outStream_destroy(&packet);
numTimings = 0;
}
|
