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Valider 663e5113 rédigé par Arnaud Lefebvre's avatar Arnaud Lefebvre
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Pipeline #10051 réussi
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <stdint.h>
#include <pthread.h>
#include <semaphore.h>
#include "fonctions.h"
FILE *file_in;
FILE *file_out;
char *f_in;
char *f_out;
int nthreads = 1;
buffer1 *buffer_1;
buffer2 *buffer_2;
int nlines;
void *reading() {
file_in = fopen(f_in, "r");
if (file_in == NULL) {
exit(EXIT_FAILURE);
}
file_out = fopen(f_out, "w");
if (file_out == NULL) {
exit(EXIT_FAILURE);
}
uint64_t number;
while (fscanf(file_in, "%lu", &number) != EOF) {
sem_wait(&(buffer_1->free));
pthread_mutex_lock(&(buffer_1->mutex));
put_node_t(buffer_1->numbers, number);
pthread_mutex_unlock(&(buffer_1->mutex));
sem_post(&(buffer_1->full));
}
pthread_mutex_lock(&(buffer_1->mutex));
buffer_1->can_stop = true;
pthread_mutex_unlock(&(buffer_1->mutex));
return NULL;
}
void *calculating() {
while (buffer_1->can_stop == false || buffer_1->numbers->length != 0) {
uint64_t number;
sem_wait(&(buffer_1->full));
pthread_mutex_lock(&(buffer_1->mutex));
number = get_node_t(buffer_1->numbers);
pthread_mutex_unlock(&(buffer_1->mutex));
sem_post(&(buffer_1->free));
list_t *list_prime = prime_list(number);
sem_wait(&(buffer_2->free));
pthread_mutex_lock(&(buffer_2->mutex));
put_node_lst(buffer_2->prime_numbers, list_prime);
pthread_mutex_unlock(&(buffer_2->mutex));
sem_post(&(buffer_2->full));
}
return NULL;
}
void *writing() {
int nlines = count_lines(f_in);
while (nlines > 0) {
nlines --;
sem_wait(&(buffer_2->full));
pthread_mutex_lock(&(buffer_2->mutex));
list_t *removed = get_node_lst(buffer_2->prime_numbers);
pthread_mutex_unlock(&(buffer_2->mutex));
sem_post(&(buffer_2->free));
int length = removed->length;
for (int i = 0; i < length; i++) {
fprintf(file_out, "%lu ", get_node_t(removed));
}
clear_list_t(removed);
free(removed);
fprintf(file_out, "\n");
}
return NULL;
}
int main(int argc, char *argv[]) {
int opt;
while ((opt = getopt(argc, argv, "N:")) != -1) {
switch(opt) {
case 'N':
nthreads = atoi(optarg);
break;
default:
break;
}
f_in = argv[optind];
f_out = argv[optind + 1];
}
buffer_1 = init_buffer_1(nthreads);
if (!buffer_1) {
free(buffer_1);
return -1;
}
buffer_2 = init_buffer_2(nthreads);
if (!buffer_2) {
free(buffer_2);
return -1;
}
pthread_t read;
pthread_t calc[nthreads];
pthread_t write;
if (pthread_create(&read, NULL, &reading, NULL) != 0) return -1;
for (int i = 0; i < nthreads; i++) {
if (pthread_create(&calc[i], NULL, &calculating, NULL) != 0) return -1;
}
if (pthread_create(&write, NULL, &writing, NULL) != 0) return -1;
if (pthread_join(read, NULL) != 0) return -1;
for (int i = 0; i < nthreads; i++) {
pthread_cancel(calc[i]);
if (pthread_join(calc[i], NULL) != 0) return -1;
}
if (pthread_join(write, NULL) != 0) return -1;
fclose(file_in);
fclose(file_out);
clear_list_t(buffer_1->numbers);
free(buffer_1->numbers);
free(buffer_2->prime_numbers);
free(buffer_1);
free(buffer_2);
return 0;
}
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