feat(probe): added probe namespace

Probe handles LogManager (for tracking multiple log files) as well as a few utility functions such as wait, pause, glVisView, and rayView (future)
This commit is contained in:
2025-02-23 11:26:41 -05:00
parent 17fea1e046
commit 411a767dc4
5 changed files with 210 additions and 188 deletions

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@@ -1,22 +1,22 @@
# Define the library
logger_sources = files(
'private/logger.cpp',
probe_sources = files(
'private/probe.cpp',
)
logger_headers = files(
'public/logger.h'
probe_headers = files(
'public/probe.h'
)
# Define the liblogger library so it can be linked against by other parts of the build system
liblogger = library('logger',
logger_sources,
libprobe = static_library('probe',
probe_sources,
include_directories: include_directories('public'),
cpp_args: ['-fvisibility=default'],
install : true)
install : true,
dependencies: [config_dep, mfem_dep, quill_dep]
)
logger_dep = declare_dependency(
probe_dep = declare_dependency(
include_directories: include_directories('public'),
link_with: liblogger,
)
# Make headers accessible
install_headers(logger_headers, subdir : '4DSSE/logger')
link_with: libprobe,
)

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@@ -1,104 +0,0 @@
#include <iostream>
#include <string>
#include <fstream>
#include <sstream>
#include <queue>
#include <mutex>
#include <condition_variable>
#include <chrono>
#include <thread>
#include <atomic>
#include <unordered_map>
#include <iomanip>
#include "logger.h"
Record makeRecord(const std::string& message, const std::string& context, DiagnosticLevel level) {
return {message, context, std::chrono::system_clock::now(), level};
}
std::string timestepToString(const std::chrono::time_point<std::chrono::system_clock>& timestamp) {
std::time_t timeT = std::chrono::system_clock::to_time_t(timestamp);
std::tm tmStruct = *std::localtime(&timeT);
std::ostringstream oss;
oss << std::put_time(&tmStruct, "%Y-%m-%d %H:%M:%S");
return oss.str();
}
std::unordered_map<std::string, Logger*> Logger::instances;
std::mutex Logger::mapMutex;
Logger::Logger(const std::string& filename) : filename(filename), logFile(filename, std::ios::app) {
logThread = std::thread(&Logger::processesLogs, this);
}
void Logger::processesLogs() {
while (running || !logQueue.empty()) {
std::unique_lock<std::mutex> lock(queueMutex);
queueCondition.wait(lock, [this] { return !logQueue.empty() || !running; });
while (!logQueue.empty()) {
logFile << logQueue.front() << std::endl;
logQueue.pop();
}
}
}
std::string Logger::levelAsString(DiagnosticLevel level) {
switch (level) {
case DiagnosticLevel::DEBUG:
return "DEBUG";
case DiagnosticLevel::INFO:
return "INFO";
case DiagnosticLevel::WARNING:
return "WARNING";
case DiagnosticLevel::ERROR:
return "ERROR";
case DiagnosticLevel::CRITICAL:
return "CRITICAL";
case DiagnosticLevel::NONE:
return "NONE";
}
return "";
}
Logger& Logger::getInstance(const std::string& filename) {
std::lock_guard<std::mutex> lock(mapMutex);
auto it = instances.find(filename);
if (it == instances.end()) {
it = instances.emplace(filename, new Logger(filename)).first;
}
return *it->second;
}
void Logger::log(const Record& record) {
std::stringstream ss;
ss << levelAsString(record.level) << " @ " << timestepToString(record.timestamp) << " [" << record.context << "] :" << record.message;
std::lock_guard<std::mutex> lock(queueMutex);
logQueue.push(ss.str());
queueCondition.notify_one();
}
void Logger::log(const std::string& message, const std::string& context, DiagnosticLevel level) {
log(makeRecord(message, context, level));
}
void Logger::log(const std::string& message, DiagnosticLevel level) {
log(makeRecord(message, "", level));
}
void Logger::log(const std::string& message) {
log(makeRecord(message, "", DiagnosticLevel::INFO));
}
Logger::~Logger() {
{
std::lock_guard<std::mutex> lock(queueMutex);
running = false;
}
queueCondition.notify_one();
if (logThread.joinable()) {
logThread.join();
}
std::this_thread::sleep_for(std::chrono::milliseconds(100)); // wait for the log thread to finish writing
}

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@@ -0,0 +1,99 @@
#include "quill/Backend.h"
#include "quill/Frontend.h"
#include "quill/Logger.h"
#include "quill/sinks/ConsoleSink.h"
#include "quill/sinks/FileSink.h"
#include <stdexcept>
#include <string>
#include <iostream>
#include <chrono>
#include "mfem.hpp"
#include "config.h"
#include "probe.h"
namespace Probe {
void pause() {
std::cout << "Execution paused. Please press enter to continue..."
<< std::endl; // Use endl to flush
std::cin.get();
}
void wait(int seconds) {
std::this_thread::sleep_for(std::chrono::seconds(seconds));
}
void glVisView(mfem::GridFunction& u, mfem::Mesh& mesh,
const std::string& windowTitle) {
Config& config = Config::getInstance();
if (config.get<bool>("Probe:GLVis:Visualization", true)) {
std::string vishost = config.get<std::string>("Probe:GLVis:Host", "localhost");
int visport = config.get<int>("Probe:GLVis:Port", 19916); // Changed default port
mfem::socketstream sol_sock(vishost.c_str(), visport);
sol_sock.precision(8);
sol_sock << "solution\n" << mesh << u
<< "window_title '" << windowTitle << "'\n" << std::flush; // Added title
}
}
LogManager::LogManager() {
Config& config = Config::getInstance();
quill::Backend::start();
auto CLILogger = quill::Frontend::create_or_get_logger(
"root",
quill::Frontend::create_or_get_sink<quill::ConsoleSink>("sink_id_1"));
newFileLogger(config.get<std::string>("Probe:LogManager:DefaultLogName", "4DSSE.log"), "log");
loggerMap.emplace("stdout", CLILogger);
}
LogManager::~LogManager() = default;
quill::Logger* LogManager::getLogger(const std::string& loggerName) {
auto it = loggerMap.find(loggerName); // Find *once*
if (it == loggerMap.end()) {
throw std::runtime_error("Cannot find logger " + loggerName);
}
return it->second; // Return the raw pointer from the shared_ptr
}
std::vector<std::string> LogManager::getLoggerNames() {
std::vector<std::string> loggerNames;
loggerNames.reserve(loggerMap.size());
for (const auto& pair : loggerMap) { // Use range-based for loop and const auto&
loggerNames.push_back(pair.first);
}
return loggerNames;
}
std::vector<quill::Logger*> LogManager::getLoggers() {
std::vector<quill::Logger*> loggers;
loggers.reserve(loggerMap.size());
for (const auto& pair : loggerMap) {
loggers.push_back(pair.second); // Get the raw pointer
}
return loggers;
}
quill::Logger* LogManager::newFileLogger(const std::string& filename,
const std::string& loggerName) {
auto file_sink = quill::Frontend::create_or_get_sink<quill::FileSink>(
filename,
[]() {
quill::FileSinkConfig cfg;
cfg.set_open_mode('w');
return cfg;
}(),
quill::FileEventNotifier{});
// Get the raw pointer.
quill::Logger* rawLogger = quill::Frontend::create_or_get_logger(loggerName, std::move(file_sink));
// Create a shared_ptr from the raw pointer.
loggerMap.emplace(loggerName, rawLogger);
return rawLogger;
}
} // namespace Probe

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@@ -1,72 +0,0 @@
#ifndef LOGGER_H
#define LOGGER_H
#include <iostream>
#include <string>
#include <fstream>
#include <sstream>
#include <queue>
#include <mutex>
#include <condition_variable>
#include <chrono>
#include <thread>
#include <atomic>
#include <unordered_map>
enum class DiagnosticLevel {
DEBUG,
INFO,
WARNING,
ERROR,
CRITICAL,
NONE
};
struct Record {
std::string message;
std::string context;
std::chrono::time_point<std::chrono::system_clock> timestamp;
DiagnosticLevel level;
};
Record makeRecord(const std::string& message, const std::string& context, DiagnosticLevel level);
std::string timestepToString(const std::chrono::time_point<std::chrono::system_clock>& timestamp);
class Logger {
private:
static std::unordered_map<std::string, Logger*> instances;
static std::mutex mapMutex;
std::queue<std::string> logQueue;
std::mutex queueMutex;
std::condition_variable queueCondition;
std::thread logThread;
std::atomic<bool> running;
std::string filename;
std::ofstream logFile;
Logger(const std::string& filename);
Logger(const Logger&) = delete;
Logger& operator=(const Logger&) = delete;
void processesLogs();
std::string levelAsString(DiagnosticLevel level);
public:
static Logger& getInstance(const std::string& filename);
void log(const Record& record);
void log(const std::string& message, const std::string& context, DiagnosticLevel level);
void log(const std::string& message, DiagnosticLevel level);
void log(const std::string& message);
~Logger();
};
#endif

99
src/probe/public/probe.h Normal file
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@@ -0,0 +1,99 @@
//=== Probe.h ===
#ifndef PROBE_H
#define PROBE_H
#include <string>
#include <map>
#include <vector>
#include <iostream>
#include "mfem.hpp"
#include "quill/Logger.h"
/**
* @brief The Probe namespace contains utility functions for debugging and logging.
*/
namespace Probe {
/**
* @brief Pause the execution and wait for user input.
*/
void pause();
/**
* @brief Wait for a specified number of seconds.
* @param seconds The number of seconds to wait.
*/
void wait(int seconds);
/**
* @brief Visualize a solution using GLVis.
* @param u The GridFunction to visualize.
* @param mesh The mesh associated with the GridFunction.
* @param windowTitle The title of the visualization window.
*/
void glVisView(mfem::GridFunction& u, mfem::Mesh& mesh,
const std::string& windowTitle = "solution");
/**
* @brief Class to manage logging operations.
*/
class LogManager {
private:
/**
* @brief Private constructor for singleton pattern.
*/
LogManager();
/**
* @brief Destructor.
*/
~LogManager();
// Map to store pointers to quill loggers (raw pointers as quill deals with its own memory managment in a seperated, detatched, thread)
std::map<std::string, quill::Logger*> loggerMap;
// Prevent copying and assignment (Rule of Zero)
LogManager(const LogManager&) = delete;
LogManager& operator=(const LogManager&) = delete;
public:
/**
* @brief Get the singleton instance of LogManager.
* @return The singleton instance of LogManager.
*/
static LogManager& getInstance() {
static LogManager instance;
return instance;
}
/**
* @brief Get a logger by name.
* @param loggerName The name of the logger.
* @return A pointer to the logger.
*/
quill::Logger* getLogger(const std::string& loggerName);
/**
* @brief Get the names of all loggers.
* @return A vector of logger names.
*/
std::vector<std::string> getLoggerNames();
/**
* @brief Get all loggers.
* @return A vector of pointers to the loggers.
*/
std::vector<quill::Logger*> getLoggers();
/**
* @brief Create a new file logger.
* @param filename The name of the log file.
* @param loggerName The name of the logger.
* @return A pointer to the new logger.
*/
quill::Logger* newFileLogger(const std::string& filename,
const std::string& loggerName);
};
} // namespace Probe
#endif