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/*
* Copyright (C) 2019 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.
*/
#include "TraceBuffer.h"
#include <chrono>
#include <sstream>
#include <unistd.h>
#include <vector>
#include <inttypes.h>
#include "android-base/utf8.h"
#include "util/Files.h"
namespace aapt {
namespace tracebuffer {
namespace {
constexpr char kBegin = 'B';
constexpr char kEnd = 'E';
struct TracePoint {
pid_t tid;
int64_t time;
std::string tag;
char type;
};
std::vector<TracePoint> traces;
int64_t GetTime() noexcept {
auto now = std::chrono::steady_clock::now();
return std::chrono::duration_cast<std::chrono::microseconds>(now.time_since_epoch()).count();
}
} // namespace anonymous
void AddWithTime(const std::string& tag, char type, int64_t time) noexcept {
TracePoint t = {getpid(), time, tag, type};
traces.emplace_back(t);
}
void Add(const std::string& tag, char type) noexcept {
AddWithTime(tag, type, GetTime());
}
void Flush(const std::string& basePath) {
TRACE_CALL();
if (basePath.empty()) {
return;
}
std::stringstream s;
s << basePath << aapt::file::sDirSep << "report_aapt2_" << getpid() << ".json";
FILE* f = android::base::utf8::fopen(s.str().c_str(), "a");
if (f == nullptr) {
return;
}
for(const TracePoint& trace : traces) {
fprintf(f, "{\"ts\" : \"%" PRIu64 "\", \"ph\" : \"%c\", \"tid\" : \"%d\" , \"pid\" : \"%d\", "
"\"name\" : \"%s\" },\n", trace.time, trace.type, 0, trace.tid, trace.tag.c_str());
}
fclose(f);
traces.clear();
}
} // namespace tracebuffer
void BeginTrace(const std::string& tag) {
tracebuffer::Add(tag, tracebuffer::kBegin);
}
void EndTrace() {
tracebuffer::Add("", tracebuffer::kEnd);
}
Trace::Trace(const std::string& tag) {
tracebuffer::Add(tag, tracebuffer::kBegin);
}
Trace::Trace(const std::string& tag, const std::vector<android::StringPiece>& args) {
std::stringstream s;
s << tag;
s << " ";
for (auto& arg : args) {
s << arg.to_string();
s << " ";
}
tracebuffer::Add(s.str(), tracebuffer::kBegin);
}
Trace::~Trace() {
tracebuffer::Add("", tracebuffer::kEnd);
}
FlushTrace::FlushTrace(const std::string& basepath, const std::string& tag)
: basepath_(basepath) {
tracebuffer::Add(tag, tracebuffer::kBegin);
}
FlushTrace::FlushTrace(const std::string& basepath, const std::string& tag,
const std::vector<android::StringPiece>& args) : basepath_(basepath) {
std::stringstream s;
s << tag;
s << " ";
for (auto& arg : args) {
s << arg.to_string();
s << " ";
}
tracebuffer::Add(s.str(), tracebuffer::kBegin);
}
FlushTrace::FlushTrace(const std::string& basepath, const std::string& tag,
const std::vector<std::string>& args) : basepath_(basepath){
std::stringstream s;
s << tag;
s << " ";
for (auto& arg : args) {
s << arg;
s << " ";
}
tracebuffer::Add(s.str(), tracebuffer::kBegin);
}
FlushTrace::~FlushTrace() {
tracebuffer::Add("", tracebuffer::kEnd);
tracebuffer::Flush(basepath_);
}
} // namespace aapt
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