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1 /*
2  * Copyright (c) Huawei Technologies Co., Ltd. 2021-2023. All rights reserved.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include "buffer_writer.h"
17 #include "command_poller.h"
18 #include "common_types.pb.h"
19 #include "logging.h"
20 #include "plugin_service_types.pb.h"
21 #include "share_memory_allocator.h"
22 
23 #include <algorithm>
24 #include <cinttypes>
25 #include <thread>
26 #include <unistd.h>
27 
28 using namespace OHOS::Developtools::Profiler;
29 
BufferWriter(std::string name,std::string version,uint32_t size,int smbFd,int eventFd,uint32_t pluginId)30 BufferWriter::BufferWriter(std::string name,
31                            std::string version,
32                            uint32_t size,
33                            int smbFd,
34                            int eventFd,
35                            uint32_t pluginId)
36     : pluginName_(name), pluginVersion_(version)
37 {
38     PROFILER_LOG_INFO(LOG_CORE, "%s:%s %d [%d] [%d]", __func__, name.c_str(), size, smbFd, eventFd);
39     shareMemoryBlock_ = ShareMemoryAllocator::GetInstance().CreateMemoryBlockRemote(name, size, smbFd);
40     if (shareMemoryBlock_ == nullptr) {
41         PROFILER_LOG_DEBUG(LOG_CORE, "%s:create shareMemoryBlock_ failed!", __func__);
42     }
43     eventNotifier_ = EventNotifier::CreateWithFd(eventFd);
44     pluginId_ = pluginId;
45     lastFlushTime_ = std::chrono::steady_clock::now();
46     if (shareMemoryBlock_ != nullptr) {
47         writeCtx_ = reinterpret_cast<RandomWriteCtx*>(shareMemoryBlock_->GetCtx());
48         profilerPluginData_ = ProtoEncoder::ProfilerPluginData(writeCtx_);
49     }
50 }
51 
~BufferWriter()52 BufferWriter::~BufferWriter()
53 {
54     PROFILER_LOG_DEBUG(LOG_CORE, "%s:destroy eventfd = %d!", __func__, eventNotifier_ ? eventNotifier_->GetFd() : -1);
55     eventNotifier_ = nullptr;
56     ShareMemoryAllocator::GetInstance().ReleaseMemoryBlockRemote(pluginName_);
57 }
58 
Report() const59 void BufferWriter::Report() const
60 {
61     PROFILER_LOG_DEBUG(LOG_CORE, "%s:stats B: %" PRIu64 ", P: %d, W:%" PRIu64 ", F: %d", __func__,
62         bytesCount_.load(), bytesPending_.load(), writeCount_.load(), flushCount_.load());
63 }
64 
DoStats(long bytes)65 void BufferWriter::DoStats(long bytes)
66 {
67     ++writeCount_;
68     bytesCount_ += static_cast<uint64_t>(bytes);
69     bytesPending_ += static_cast<uint32_t>(bytes);
70 }
71 
Write(const void * data,size_t size)72 long BufferWriter::Write(const void* data, size_t size)
73 {
74     if (shareMemoryBlock_ == nullptr || data == nullptr || size == 0) {
75         return false;
76     }
77     ProfilerPluginData pluginData;
78     pluginData.set_name(pluginName_);
79     pluginData.set_version(pluginVersion_);
80     pluginData.set_status(0);
81     pluginData.set_data(data, size);
82 
83     struct timespec ts = { 0, 0 };
84     clock_gettime(clockId_, &ts);
85 
86     pluginData.set_clock_id(static_cast<ProfilerPluginData_ClockId>(clockId_));
87     pluginData.set_tv_sec(ts.tv_sec);
88     pluginData.set_tv_nsec(ts.tv_nsec);
89 
90     DoStats(pluginData.ByteSizeLong());
91     return shareMemoryBlock_->PutMessage(pluginData, pluginName_);
92 }
93 
StartReport()94 RandomWriteCtx* BufferWriter::StartReport()
95 {
96     if (shareMemoryBlock_ == nullptr || writeCtx_ == nullptr) {
97         return nullptr;
98     }
99 
100     shareMemoryBlock_->ResetPos();
101     profilerPluginData_.Reset(writeCtx_);
102     profilerPluginData_.set_name(pluginName_);
103     profilerPluginData_.set_version(pluginVersion_);
104     profilerPluginData_.set_status(0);
105     return profilerPluginData_.startAdd_data();
106 }
107 
FinishReport(int32_t size)108 void BufferWriter::FinishReport(int32_t size)
109 {
110     if (shareMemoryBlock_ == nullptr) {
111         return;
112     }
113 
114     profilerPluginData_.finishAdd_data(size);
115     struct timespec ts;
116     clock_gettime(CLOCK_REALTIME, &ts);
117     profilerPluginData_.set_clock_id(ProfilerPluginData::CLOCKID_REALTIME);
118     profilerPluginData_.set_tv_sec(ts.tv_sec);
119     profilerPluginData_.set_tv_nsec(ts.tv_nsec);
120     int32_t len = profilerPluginData_.Finish();
121     shareMemoryBlock_->UseMemory(len);
122     DoStats(len);
123 }
124 
WriteMessage(const google::protobuf::Message & pmsg,const std::string & pluginName)125 bool BufferWriter::WriteMessage(const google::protobuf::Message& pmsg, const std::string& pluginName)
126 {
127     if (shareMemoryBlock_ == nullptr) {
128         return false;
129     }
130     DoStats(pmsg.ByteSizeLong());
131     return shareMemoryBlock_->PutMessage(pmsg, pluginName);
132 }
133 
Flush()134 bool BufferWriter::Flush()
135 {
136     ++flushCount_;
137     if (eventNotifier_ == nullptr) {
138         return false;
139     }
140     eventNotifier_->Post(flushCount_.load());
141     lastFlushTime_ = std::chrono::steady_clock::now();
142     bytesPending_ = 0;
143     return true;
144 }
145 
UseMemory(int32_t size)146 void BufferWriter::UseMemory(int32_t size)
147 {
148     if (shareMemoryBlock_ == nullptr) {
149         return;
150     }
151 
152     shareMemoryBlock_->UseMemory(size);
153     DoStats(size);
154 }
155 
ResetPos()156 void BufferWriter::ResetPos()
157 {
158     if (shareMemoryBlock_ == nullptr) {
159         return;
160     }
161 
162     shareMemoryBlock_->ResetPos();
163 }