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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.internal.telephony;
import android.compat.annotation.UnsupportedAppUsage;
import android.os.AsyncResult;
import android.os.Message;
import android.os.SystemClock;
import android.os.WorkSource;
import android.os.WorkSource.WorkChain;
import android.telephony.Rlog;
import java.util.ArrayList;
import java.util.Random;
import java.util.concurrent.atomic.AtomicInteger;
/**
* {@hide}
*/
public class RILRequest {
static final String LOG_TAG = "RilRequest";
//***** Class Variables
static Random sRandom = new Random();
static AtomicInteger sNextSerial = new AtomicInteger(0);
private static Object sPoolSync = new Object();
private static RILRequest sPool = null;
private static int sPoolSize = 0;
private static final int MAX_POOL_SIZE = 4;
//***** Instance Variables
@UnsupportedAppUsage
int mSerial;
@UnsupportedAppUsage
int mRequest;
@UnsupportedAppUsage
Message mResult;
RILRequest mNext;
int mWakeLockType;
WorkSource mWorkSource;
String mClientId;
// time in ms when RIL request was made
long mStartTimeMs;
public int getSerial() {
return mSerial;
}
public int getRequest() {
return mRequest;
}
public Message getResult() {
return mResult;
}
/**
* Retrieves a new RILRequest instance from the pool.
*
* @param request RIL_REQUEST_*
* @param result sent when operation completes
* @return a RILRequest instance from the pool.
*/
@UnsupportedAppUsage
private static RILRequest obtain(int request, Message result) {
RILRequest rr = null;
synchronized (sPoolSync) {
if (sPool != null) {
rr = sPool;
sPool = rr.mNext;
rr.mNext = null;
sPoolSize--;
}
}
if (rr == null) {
rr = new RILRequest();
}
// Increment serial number. Wrap to 0 when reaching Integer.MAX_VALUE.
rr.mSerial = sNextSerial.getAndUpdate(n -> ((n + 1) % Integer.MAX_VALUE));
rr.mRequest = request;
rr.mResult = result;
rr.mWakeLockType = RIL.INVALID_WAKELOCK;
rr.mWorkSource = null;
rr.mStartTimeMs = SystemClock.elapsedRealtime();
if (result != null && result.getTarget() == null) {
throw new NullPointerException("Message target must not be null");
}
return rr;
}
/**
* Retrieves a new RILRequest instance from the pool and sets the clientId
*
* @param request RIL_REQUEST_*
* @param result sent when operation completes
* @param workSource WorkSource to track the client
* @return a RILRequest instance from the pool.
*/
// @VisibleForTesting
public static RILRequest obtain(int request, Message result, WorkSource workSource) {
RILRequest rr = obtain(request, result);
if (workSource != null) {
rr.mWorkSource = workSource;
rr.mClientId = rr.getWorkSourceClientId();
} else {
Rlog.e(LOG_TAG, "null workSource " + request);
}
return rr;
}
/**
* Generate a String client ID from the WorkSource.
*/
// @VisibleForTesting
public String getWorkSourceClientId() {
if (mWorkSource == null || mWorkSource.isEmpty()) {
return null;
}
if (mWorkSource.size() > 0) {
return mWorkSource.get(0) + ":" + mWorkSource.getName(0);
}
final ArrayList<WorkChain> workChains = mWorkSource.getWorkChains();
if (workChains != null && !workChains.isEmpty()) {
final WorkChain workChain = workChains.get(0);
return workChain.toString();
}
return null;
}
/**
* Returns a RILRequest instance to the pool.
*
* Note: This should only be called once per use.
*/
@UnsupportedAppUsage
void release() {
synchronized (sPoolSync) {
if (sPoolSize < MAX_POOL_SIZE) {
mNext = sPool;
sPool = this;
sPoolSize++;
mResult = null;
if (mWakeLockType != RIL.INVALID_WAKELOCK) {
//This is OK for some wakelock types and not others
if (mWakeLockType == RIL.FOR_WAKELOCK) {
Rlog.e(LOG_TAG, "RILRequest releasing with held wake lock: "
+ serialString());
}
}
}
}
}
private RILRequest() {
}
static void resetSerial() {
// Use a non-negative random number so that on recovery we probably don't mix old requests
// with new.
sNextSerial.set(sRandom.nextInt(Integer.MAX_VALUE));
}
@UnsupportedAppUsage
String serialString() {
//Cheesy way to do %04d
StringBuilder sb = new StringBuilder(8);
String sn;
// Truncate mSerial to a number with maximum 4 digits.
int adjustedSerial = mSerial % 10000;
sn = Integer.toString(adjustedSerial);
//sb.append("J[");
sb.append('[');
for (int i = 0, s = sn.length(); i < 4 - s; i++) {
sb.append('0');
}
sb.append(sn);
sb.append(']');
return sb.toString();
}
@UnsupportedAppUsage
void onError(int error, Object ret) {
CommandException ex;
ex = CommandException.fromRilErrno(error);
if (RIL.RILJ_LOGD) {
Rlog.d(LOG_TAG, serialString() + "< "
+ RIL.requestToString(mRequest)
+ " error: " + ex + " ret=" + RIL.retToString(mRequest, ret));
}
if (mResult != null) {
AsyncResult.forMessage(mResult, ret, ex);
mResult.sendToTarget();
}
}
}
|
