utils.cpp

#include "utils.h"

Utils g_utils;

/* Action - Exit the program */
void Utils::handle_type1_error(int arg, string msg) {
	if (arg < 0) {
		msg = to_string(errno) + ": " + msg;
		perror(msg.c_str());
		exit(EXIT_FAILURE);
	}	
}

/* Action - Check for error conditions. Do not exit. */
void Utils::handle_type2_error(int arg, string msg) {
	if (arg < 0) {
		msg = to_string(errno) + ": " + msg;
		perror(msg.c_str());
	}
}

char* Utils::allocate_str_mem(int len) {
	char *tem;

	if (len <= 0) {
		handle_type1_error(-1, "Memory length error: utils_allocatestrmem");
	}
	tem = (char*)malloc(len * sizeof (char));
	if (tem != NULL) {
		memset(tem, 0, len * sizeof (char));
		return tem;
	}
	else {
		handle_type1_error(-1, "Memory allocation error: utils_allocatestrmem");
	}
}

uint8_t* Utils::allocate_uint8_mem(int len) {
	uint8_t *tem;

	if (len <= 0) {
		handle_type1_error(-1, "Memory length error: utils_allocateuint8mem");
	}
	tem = (uint8_t*)malloc(len * sizeof (uint8_t));
	if (tem != NULL) {
		memset(tem, 0, len * sizeof (uint8_t));
		return tem;
	} 
	else {
		handle_type1_error(-1, "Memory allocation error: utils_allocateuint8mem");
	}
}

void Utils::time_check(time_t start_time, double dur_time, bool &time_exceeded) {
	double elapsed_time;

	if ((elapsed_time = difftime(time(0), start_time)) > dur_time) {
		time_exceeded = true;
	}
}

int Utils::max_ele(vector<int> inp) {
	int ans;
	int size;
	int i;
	
	ans = 0;
	size = inp.size();
	for (i = 0; i < size; i++) {
		ans = max(ans, inp[i]);
	} 
	return ans;
}