UsageManager.cpp

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//
//  UsageManager.cpp
//  AI Watch A1
//
//  Created by Denny Caruso on 23/07/22.
//
 
// License: Apache 2.0. See LICENSE file in root directory.
// Copyright(c) 2022. All Rights Reserved.
 
#include "UsageManager.hpp"
 
 
 
UsageManager * UsageManager::sharedInstance { nullptr };
std::mutex UsageManager::singletonMutex;
 
 
 
void UsageManager::checkUsage (void) {
    if (* get_argc() != get_expected_argc()) {
        std::string buffer = "Usage: ./" + std::string((* get_argv())[programNameOffset]) + std::string(get_expectedUsageMessage()) + " -- " + std::string(CHECK_USAGE_SCOPE);
        CV_Error(CHECK_USAGE_ERROR, buffer);
    }
}
 
const int UsageManager::get_expected_argc (void) {
    return this->expected_argc;
}
 
const char * UsageManager::get_expectedUsageMessage (void) {
    return this->expectedUsageMessage;
}
 
 
 
UsageManager::~UsageManager() {
    for (unsigned int i = 0; i < * get_argc(); i++) delete [] (* get_argv())[i];
    delete get_argc();
    delete get_argv();
    delete sharedInstance;
}
 
UsageManager * UsageManager::getInstance (int * argc, char *** argv, const int expected_argc, const char * expectedUsageMessage) {
    std::lock_guard <std::mutex> lock(singletonMutex);
    if (sharedInstance == nullptr) sharedInstance = new UsageManager(argc, argv, expected_argc, expectedUsageMessage);
    return sharedInstance;
}
 
UsageManager * UsageManager::getInstance (void) {
    std::lock_guard <std::mutex> lock(singletonMutex);
    if (sharedInstance == nullptr) return nullptr;
    return sharedInstance;
}
 
int * UsageManager::get_argc (void) {
    return this->argc;
}
 
char *** UsageManager::get_argv (void) {
    std::stringstream openPoseTerminalCommand;
    UsageManager * usageManagerInstance = UsageManager::getInstance();
    if (usageManagerInstance == nullptr) CV_Error(USAGE_MANAGER_NULLPTR_ERROR, USAGE_MANAGER_NULLPTR_SCOPE);
    return usageManagerInstance->argv;
}