Я написал C-программу о шифровании и декодировании vigenere.И затем, я хочу добавить использование процессора и памяти в этой программе.
Однако я не знаю, что добавить в эту программу код использования ресурсов (ЦП и память).Just Я просто хочу знать использование ресурсов (ЦП и памяти) в этой программе.Я надеюсь, что все могут мне помочь.Спасибо !!
Следующий код моей C-программы vigenere шифрует и декодирует
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <omp.h>
int char_to_index(char c)
{
/*if(c>='A' && c<='Z'){
c=c+32;
}*/
char x = c;
char result = x - 'a';
return (int)result;
}
char index_to_char(int c)
{
int result = c + 97;
return (char)result;
}
char * xorencrypt(char * message, char * key) {
int i;
size_t messagelen = strlen(message);
size_t keylen = strlen(key);
char * encrypted = malloc(messagelen+1);
//start to parallel
omp_set_num_threads(8);
#pragma omp parallel \
private(i)
#pragma omp for
for (i = 0; i < messagelen; i++) {
int buf1 = char_to_index(message[i]);
int buf2 = char_to_index(key[i % keylen]);
char r = index_to_char(buf1 ^ buf2);
encrypted[i] = r;
}
encrypted[messagelen] = '\0';
return encrypted;
}
char * xordecode(char * cript, char * key) {
int i;
size_t criptlen = strlen(cript);
size_t keylen = strlen(key);
char * message = malloc(criptlen+1);
//start to parallel
omp_set_num_threads(8);
#pragma omp parallel \
private(i)
#pragma omp for
for (i = 0; i < criptlen; i++) {
int buf1 = char_to_index(cript[i]);
int buf2 = char_to_index(key[i % keylen]);
char r = index_to_char(buf1 ^ buf2);
message[i] = r;
}
message[criptlen] = '\0';
return message;
}
int time_substract(struct timeval *result, struct timeval *begin,struct timeval *end)
{
if(begin->tv_sec > end->tv_sec) return -1;
if((begin->tv_sec == end->tv_sec) && (begin->tv_usec > end->tv_usec)) return -2;
result->tv_sec = (end->tv_sec - begin->tv_sec);
result->tv_usec = (end->tv_usec - begin->tv_usec);
if(result->tv_usec < 0)
{
result->tv_sec--;
result->tv_usec += 1000000;
}
return 0;
}
int main(int argc, const char * argv[]) {
//count time!!!
struct timeval start,stop,diff;
memset(&start,0,sizeof(struct timeval));
memset(&stop,0,sizeof(struct timeval));
memset(&diff,0,sizeof(struct timeval));
gettimeofday(&start,0);
//count time!!!
char * message = "By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. By using the article the, we’ve shown that it was one specific day that was long and one specific cup of tea that tasted good. ";
printf("Input : %s\n",message);
char * key = "key";
char * encrypted = xorencrypt(message, key);
printf("Encrypted: %s\n", encrypted);
char * message1 = xordecode(encrypted, key);
printf("Decrypted: %s\n", message1);
//count time!!!
gettimeofday(&stop,0);
time_substract(&diff,&start,&stop);
printf("Total time : %d s,%d us\n",(int)diff.tv_sec,(int)diff.tv_usec);
//count time!!!
return 0;
}