1 /*
2 * Copyright (c) 1998, 2004, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "timing.h"
27
28 #include "error_messages.h"
29 #include "JDWP.h"
30 #include "outStream.h"
31 #include "util.h"
32
33 // ANDROID-CHANGED: This whole file
34
35 // This system stores cmd processing timing and sends them to the debugger
36 // to generate profiling stats.
37
38 typedef struct Timing {
39 jlong start_ns;
40 jlong duration_ns;
41 jint id;
42 jint cmd_set;
43 jint cmd;
44 } Timing;
45
46 static const jint MAX_TIMINGS = 500;
47 static Timing timings[MAX_TIMINGS];
48 static jint numTimings;
49
timings_startCmd(jint id,jint cmd_set,jint cmd)50 void timings_startCmd(jint id, jint cmd_set, jint cmd) {
51 timings[numTimings].id = id;
52 timings[numTimings].cmd_set = cmd_set;
53 timings[numTimings].cmd = cmd;
54 timings[numTimings].start_ns = nsTime();
55 }
56
timings_endCmd()57 void timings_endCmd() {
58 timings[numTimings].duration_ns = nsTime() - timings[numTimings].start_ns;
59 numTimings++;
60
61 if (numTimings == MAX_TIMINGS) {
62 timings_flush();
63 }
64 }
65
66 // Return the size of the ARTT chunk
getChunkSize()67 static jint getChunkSize() {
68 jint size = 0;
69 size += sizeof(jint); // version
70 size += sizeof(jint); // num timing entries.
71
72 size += numTimings * (sizeof(jint) * 3 + sizeof(jlong) * 2); // entries
73 return size;
74 }
75
timings_flush()76 void timings_flush() {
77 // Don't even waste a packet if we know it will contain no payload.
78 if (numTimings == 0) {
79 return;
80 }
81
82 PacketOutputStream packet;
83
84 outStream_initCommand(&packet, uniqueID(), 0, JDWP_COMMAND_SET(DDM), JDWP_COMMAND(DDM, Chunk));
85
86 outStream_writeInt(&packet, 'A' << 24 | 'R' << 16 | 'T' << 8 | 'T');// DDM chunk type
87 outStream_writeInt(&packet, getChunkSize()); // DDM chunk length
88
89 outStream_writeInt(&packet, 1); //version
90 outStream_writeInt(&packet, numTimings); // num timing entries
91
92 for(int i=0 ; i < numTimings ; i++) {
93 outStream_writeInt(&packet, timings[i].id);
94 outStream_writeInt(&packet, timings[i].cmd_set);
95 outStream_writeInt(&packet, timings[i].cmd);
96 outStream_writeLong(&packet, timings[i].start_ns);
97 outStream_writeLong(&packet, timings[i].duration_ns);
98 }
99 outStream_sendCommand(&packet);
100 outStream_destroy(&packet);
101
102 numTimings = 0;
103 }
104
105