1 /*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 //#define LOG_NDEBUG 0
18 #define LOG_TAG "ECOService"
19
20 #include "eco/ECOService.h"
21
22 #include <binder/BinderService.h>
23 #include <cutils/atomic.h>
24 #include <inttypes.h>
25 #include <pthread.h>
26 #include <stdio.h>
27 #include <sys/types.h>
28
29 #include <algorithm>
30 #include <climits>
31 #include <cstring>
32 #include <ctime>
33 #include <string>
34
35 #include "eco/ECODebug.h"
36
37 namespace android {
38 namespace media {
39 namespace eco {
40
ECOService()41 ECOService::ECOService() : BnECOService() {
42 ALOGD("ECOService created");
43 updateLogLevel();
44 }
45
obtainSession(int32_t width,int32_t height,bool isCameraRecording,::android::sp<::android::media::eco::IECOSession> * _aidl_return)46 /*virtual*/ ::android::binder::Status ECOService::obtainSession(
47 int32_t width, int32_t height, bool isCameraRecording,
48 ::android::sp<::android::media::eco::IECOSession>* _aidl_return) {
49 ECOLOGI("ECOService::obtainSession w: %d, h: %d, isCameraRecording: %d", width, height,
50 isCameraRecording);
51
52 bool disable = property_get_bool(kDisableEcoServiceProperty, false);
53 if (disable) {
54 ECOLOGE("ECOService:: Failed to obtainSession as ECOService is disable");
55 return STATUS_ERROR(ERROR_UNSUPPORTED, "ECOService is disable");
56 }
57
58 if (width <= 0) {
59 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Width can not be <= 0");
60 }
61
62 if (height <= 0) {
63 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Height can not be <= 0");
64 }
65
66 SessionConfig newCfg(width, height, isCameraRecording);
67
68 ECOLOGD("session count before is %zu", mSessionConfigToSessionMap.size());
69
70 Mutex::Autolock lock(mServiceLock);
71 bool foundSession = false;
72 // Instead of looking up the map directly, take the chance to scan the map and evict all the
73 // invalid sessions.
74 SanitizeSession([&](MapIterType iter) {
75 if (iter->first == newCfg) {
76 sp<ECOSession> session = iter->second.promote();
77 foundSession = true;
78 *_aidl_return = session;
79 }
80 });
81
82 if (foundSession) {
83 return binder::Status::ok();
84 }
85
86 // Create a new session and add it to the record.
87 sp<ECOSession> newSession = ECOSession::createECOSession(width, height, isCameraRecording);
88 if (newSession == nullptr) {
89 ECOLOGE("ECOService failed to create ECOSession w: %d, h: %d, isCameraRecording: %d", width,
90 height, isCameraRecording);
91 return STATUS_ERROR(ERROR_UNSUPPORTED, "Failed to create eco session");
92 }
93 *_aidl_return = newSession;
94 // Insert the new session into the map.
95 mSessionConfigToSessionMap[newCfg] = newSession;
96 ECOLOGD("session count after is %zu", mSessionConfigToSessionMap.size());
97
98 return binder::Status::ok();
99 }
100
getNumOfSessions(int32_t * _aidl_return)101 /*virtual*/ ::android::binder::Status ECOService::getNumOfSessions(int32_t* _aidl_return) {
102 Mutex::Autolock lock(mServiceLock);
103 SanitizeSession(std::function<void(MapIterType it)>()); // empty callback
104 *_aidl_return = mSessionConfigToSessionMap.size();
105 return binder::Status::ok();
106 }
107
getSessions(::std::vector<::android::sp<::android::IBinder>> * _aidl_return)108 /*virtual*/ ::android::binder::Status ECOService::getSessions(
109 ::std::vector<::android::sp<::android::IBinder>>* _aidl_return) {
110 // Clear all the entries in the vector.
111 _aidl_return->clear();
112
113 Mutex::Autolock lock(mServiceLock);
114 SanitizeSession([&](MapIterType iter) {
115 sp<ECOSession> session = iter->second.promote();
116 _aidl_return->push_back(IInterface::asBinder(session));
117 });
118 return binder::Status::ok();
119 }
120
isEmptySession(const android::wp<ECOSession> & entry)121 inline bool isEmptySession(const android::wp<ECOSession>& entry) {
122 sp<ECOSession> session = entry.promote();
123 return session == nullptr;
124 }
125
SanitizeSession(const std::function<void (std::unordered_map<SessionConfig,wp<ECOSession>,SessionConfigHash>::iterator it)> & callback)126 void ECOService::SanitizeSession(
127 const std::function<void(std::unordered_map<SessionConfig, wp<ECOSession>,
128 SessionConfigHash>::iterator it)>& callback) {
129 for (auto it = mSessionConfigToSessionMap.begin(), end = mSessionConfigToSessionMap.end();
130 it != end;) {
131 if (isEmptySession(it->second)) {
132 it = mSessionConfigToSessionMap.erase(it);
133 } else {
134 if (callback != nullptr) {
135 callback(it);
136 };
137 it++;
138 }
139 }
140 }
141
binderDied(const wp<IBinder> &)142 /*virtual*/ void ECOService::binderDied(const wp<IBinder>& /*who*/) {}
143
dump(int fd,const Vector<String16> & args)144 status_t ECOService::dump(int fd, const Vector<String16>& args) {
145 Mutex::Autolock lock(mServiceLock);
146 dprintf(fd, "\n== ECO Service info: ==\n\n");
147 dprintf(fd, "Number of ECOServices: %zu\n", mSessionConfigToSessionMap.size());
148 for (auto it = mSessionConfigToSessionMap.begin(), end = mSessionConfigToSessionMap.end();
149 it != end; it++) {
150 sp<ECOSession> session = it->second.promote();
151 if (session != nullptr) {
152 session->dump(fd, args);
153 }
154 }
155
156 return NO_ERROR;
157 }
158
159 } // namespace eco
160 } // namespace media
161 } // namespace android