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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmMakefileProfilingData.h"
#include <chrono>
#include <stdexcept>
#include <vector>
#include <cm3p/json/value.h>
#include <cm3p/json/writer.h>
#include "cmsys/FStream.hxx"
#include "cmsys/SystemInformation.hxx"
#include "cmListFileCache.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
cmMakefileProfilingData::cmMakefileProfilingData(
const std::string& profileStream)
{
std::ios::openmode omode = std::ios::out | std::ios::trunc;
this->ProfileStream.open(profileStream.c_str(), omode);
Json::StreamWriterBuilder wbuilder;
this->JsonWriter =
std::unique_ptr<Json::StreamWriter>(wbuilder.newStreamWriter());
if (!this->ProfileStream.good()) {
throw std::runtime_error(std::string("Unable to open: ") + profileStream);
}
this->ProfileStream << "[";
}
cmMakefileProfilingData::~cmMakefileProfilingData() noexcept
{
if (this->ProfileStream.good()) {
try {
this->ProfileStream << "]";
this->ProfileStream.close();
} catch (...) {
cmSystemTools::Error("Error writing profiling output!");
}
}
}
void cmMakefileProfilingData::StartEntry(const cmListFileFunction& lff,
cmListFileContext const& lfc)
{
/* Do not try again if we previously failed to write to output. */
if (!this->ProfileStream.good()) {
return;
}
try {
if (this->ProfileStream.tellp() > 1) {
this->ProfileStream << ",";
}
cmsys::SystemInformation info;
Json::Value v;
v["ph"] = "B";
v["name"] = lff.LowerCaseName();
v["cat"] = "cmake";
v["ts"] = Json::Value::UInt64(
std::chrono::duration_cast<std::chrono::microseconds>(
std::chrono::steady_clock::now().time_since_epoch())
.count());
v["pid"] = static_cast<int>(info.GetProcessId());
v["tid"] = 0;
Json::Value argsValue;
if (!lff.Arguments().empty()) {
std::string args;
for (auto const& a : lff.Arguments()) {
args += (args.empty() ? "" : " ") + a.Value;
}
argsValue["functionArgs"] = args;
}
argsValue["location"] = lfc.FilePath + ":" + std::to_string(lfc.Line);
v["args"] = argsValue;
this->JsonWriter->write(v, &this->ProfileStream);
} catch (std::ios_base::failure& fail) {
cmSystemTools::Error(
cmStrCat("Failed to write to profiling output: ", fail.what()));
} catch (...) {
cmSystemTools::Error("Error writing profiling output!");
}
}
void cmMakefileProfilingData::StopEntry()
{
/* Do not try again if we previously failed to write to output. */
if (!this->ProfileStream.good()) {
return;
}
try {
this->ProfileStream << ",";
cmsys::SystemInformation info;
Json::Value v;
v["ph"] = "E";
v["ts"] = Json::Value::UInt64(
std::chrono::duration_cast<std::chrono::microseconds>(
std::chrono::steady_clock::now().time_since_epoch())
.count());
v["pid"] = static_cast<int>(info.GetProcessId());
v["tid"] = 0;
this->JsonWriter->write(v, &this->ProfileStream);
} catch (std::ios_base::failure& fail) {
cmSystemTools::Error(
cmStrCat("Failed to write to profiling output:", fail.what()));
} catch (...) {
cmSystemTools::Error("Error writing profiling output!");
}
}
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