1 /*
2 * Copyright 2018 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 #include "uploadthread.h"
18 #include "tuningfork_utils.h"
19
20 #include <sys/system_properties.h>
21 #include <GLES3/gl32.h>
22 #include <fstream>
23 #include <sstream>
24 #include <cmath>
25 #include "clearcutserializer.h"
26 #include "modp_b64.h"
27
28 #define LOG_TAG "TuningFork"
29 #include "Log.h"
30
31 namespace tuningfork {
32
~DebugBackend()33 DebugBackend::~DebugBackend() {}
34
Process(const ProtobufSerialization & evt_ser)35 bool DebugBackend::Process(const ProtobufSerialization &evt_ser) {
36 if (evt_ser.size() == 0) return false;
37 auto encode_len = modp_b64_encode_len(evt_ser.size());
38 std::vector<char> dest_buf(encode_len);
39 // This fills the dest buffer with a null-terminated string. It returns the length of
40 // the string, not including the null char
41 auto n_encoded = modp_b64_encode(&dest_buf[0], reinterpret_cast<const char*>(&evt_ser[0]),
42 evt_ser.size());
43 if (n_encoded == -1 || encode_len != n_encoded+1) {
44 ALOGW("Could not b64 encode protobuf");
45 return false;
46 }
47 std::string s(&dest_buf[0], n_encoded);
48 // Split the serialization into <128-byte chunks to avoid logcat line
49 // truncation.
50 constexpr size_t maxStrLen = 128;
51 int n = (s.size() + maxStrLen - 1) / maxStrLen; // Round up
52 for (int i = 0, j = 0; i < n; ++i) {
53 std::stringstream str;
54 str << "(TCL" << (i + 1) << "/" << n << ")";
55 int m = std::min(s.size() - j, maxStrLen);
56 str << s.substr(j, m);
57 j += m;
58 ALOGI("%s", str.str().c_str());
59 }
60 return true;
61 }
62
63 std::unique_ptr<DebugBackend> s_debug_backend = std::make_unique<DebugBackend>();
64
UploadThread(Backend * backend,const ExtraUploadInfo & extraInfo)65 UploadThread::UploadThread(Backend *backend, const ExtraUploadInfo& extraInfo) : backend_(backend),
66 current_fidelity_params_(0),
67 upload_callback_(nullptr),
68 extra_info_(extraInfo) {
69 if (backend_ == nullptr)
70 backend_ = s_debug_backend.get();
71 Start();
72 }
73
~UploadThread()74 UploadThread::~UploadThread() {
75 Stop();
76 }
77
Start()78 void UploadThread::Start() {
79 if (thread_) {
80 ALOGW("Can't start an already running thread");
81 return;
82 }
83 do_quit_ = false;
84 ready_ = nullptr;
85 thread_ = std::make_unique<std::thread>([&] { return Run(); });
86 }
87
Stop()88 void UploadThread::Stop() {
89 if (!thread_->joinable()) {
90 ALOGW("Can't stop a thread that's not started");
91 return;
92 }
93 do_quit_ = true;
94 cv_.notify_one();
95 thread_->join();
96 }
97
Run()98 void UploadThread::Run() {
99 while (!do_quit_) {
100 std::unique_lock<std::mutex> lock(mutex_);
101 if (ready_) {
102 ProtobufSerialization evt_ser;
103 UpdateGLVersion(); // Needs to be done with an active gl context
104 ClearcutSerializer::SerializeEvent(*ready_, current_fidelity_params_,
105 extra_info_,
106 evt_ser);
107 if(upload_callback_) {
108 CProtobufSerialization cser = { evt_ser.data(), evt_ser.size(), nullptr};
109 upload_callback_(&cser);
110 }
111 backend_->Process(evt_ser);
112 ready_ = nullptr;
113 }
114 cv_.wait_for(lock, std::chrono::milliseconds(1000));
115 }
116 }
117
118 // Returns true if we submitted, false if we are waiting for a previous submit to complete
Submit(const ProngCache * prongs)119 bool UploadThread::Submit(const ProngCache *prongs) {
120 if (ready_ == nullptr) {
121 {
122 std::lock_guard<std::mutex> lock(mutex_);
123 ready_ = prongs;
124 }
125 cv_.notify_one();
126 return true;
127 } else
128 return false;
129 }
130
131 namespace {
132
133 // TODO: replace these with device_info library calls once they are available
134
slurpFile(const char * fname)135 std::string slurpFile(const char* fname) {
136 std::ifstream f(fname);
137 if (f.good()) {
138 std::stringstream str;
139 str << f.rdbuf();
140 return str.str();
141 }
142 return "";
143 }
144
skipSpace(const char * q)145 const char* skipSpace(const char* q) {
146 while(*q && (*q==' ' || *q=='\t')) ++q;
147 return q;
148 }
getSystemPropViaGet(const char * key)149 std::string getSystemPropViaGet(const char* key) {
150 char buffer[PROP_VALUE_MAX + 1]=""; // +1 for terminator
151 int bufferLen = __system_property_get(key, buffer);
152 if(bufferLen>0)
153 return buffer;
154 else
155 return "";
156 }
157
158 }
159
160 /* static */
GetExtraUploadInfo(JNIEnv * env,jobject activity)161 ExtraUploadInfo UploadThread::GetExtraUploadInfo(JNIEnv* env, jobject activity) {
162 ExtraUploadInfo extra_info;
163 // Total memory
164 std::string s = slurpFile("/proc/meminfo");
165 if (!s.empty()) {
166 // Lines like 'MemTotal: 3749460 kB'
167 std::string to_find("MemTotal:");
168 auto it = s.find(to_find);
169 if(it!=std::string::npos) {
170 const char* p = s.data() + it + to_find.length();
171 p = skipSpace(p);
172 std::istringstream str(p);
173 uint64_t x;
174 str >> x;
175 std::string units;
176 str >> units;
177 static std::string unitPrefix = "bBkKmMgGtTpP";
178 auto j = unitPrefix.find(units[0]);
179 uint64_t mult = 1;
180 if (j!=std::string::npos) {
181 mult = ::pow(1024L,j/2);
182 }
183 extra_info.total_memory_bytes = x*mult;
184 }
185 }
186 extra_info.build_version_sdk = getSystemPropViaGet("ro.build.version.sdk");
187 extra_info.build_fingerprint = getSystemPropViaGet("ro.build.fingerprint");
188
189 extra_info.session_id = UniqueId(env);
190
191 extra_info.cpu_max_freq_hz.clear();
192 for(int index = 1;;++index) {
193 std::stringstream str;
194 str << "/sys/devices/system/cpu/cpu" << index << "/cpufreq/cpuinfo_max_freq";
195 auto cpu_freq_file = slurpFile(str.str().c_str());
196 if (cpu_freq_file.empty())
197 break;
198 uint64_t freq;
199 std::istringstream cstr(cpu_freq_file);
200 cstr >> freq;
201 extra_info.cpu_max_freq_hz.push_back(freq*1000); // File is in kHz
202 }
203
204 extra_info.apk_version_code = apk_utils::GetVersionCode(env, activity,
205 &extra_info.apk_package_name);
206
207 extra_info.tuningfork_version = TUNINGFORK_PACKED_VERSION;
208
209 return extra_info;
210 }
211
UpdateGLVersion()212 void UploadThread::UpdateGLVersion() {
213 // gl_es_version
214 GLint glVerMajor = 2;
215 GLint glVerMinor = 0;
216 glGetIntegerv(GL_MAJOR_VERSION, &glVerMajor);
217 if (glGetError() != GL_NO_ERROR) {
218 glVerMajor = 0;
219 glVerMinor = 0;
220 } else {
221 glGetIntegerv(GL_MINOR_VERSION, &glVerMinor);
222 }
223 extra_info_.gl_es_version = (glVerMajor<<16) + glVerMinor;
224 }
225
226 } // namespace tuningfork
227