The text is no longer sent to the client - c

Question

In my code i try to do a little game (Nim) for a school project. So i use a server tcp and 2 threads to send info to the 2 clients.
I program step by step and i stuck here cause the client (on the th1 thread) doesn't display or receive the string "Joueur 1 entrez un nombre (1-3) : " in the function takeCoin.
server code :
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <pthread.h>
#include <semaphore.h>
#define false 0
#define true 1
int J[2] = {-1, -1};
int nCoin = 15;
sem_t semaphore;
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
int cree_socket_tcp_ip()
{
int sock;
struct sockaddr_in adresse;
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
fprintf(stderr, "Erreur socket\n");
return -1;
}
memset(&adresse, 0, sizeof(struct sockaddr_in));
adresse.sin_family = AF_INET;
adresse.sin_port = htons(8080);
inet_aton("Localhost", &adresse.sin_addr);
if (bind(sock, (struct sockaddr*) &adresse, sizeof(struct sockaddr_in)) < 0)
{
close(sock);
fprintf(stderr, "Erreur bind\n");
return -1;
}
return sock;
}
void initCoin(char tab[])
{
tab[0] = '|';
tab[1] = ' ';
tab[2] = ' ';
tab[3] = ' ';
tab[4] = ' ';
for (int i = 5; i < 5 + nCoin;i++)
{
tab[i] = 'O';
}
tab[nCoin + 5] = ' ';
tab[nCoin + 6] = ' ';
tab[nCoin + 7] = ' ';
tab[nCoin + 8] = ' ';
tab[nCoin + 9] = '|';
tab[nCoin + 10] = '\n';
tab[nCoin + 11] = '\0';
}
void takeCoin(int sock, int coin)
{
char tCoin[3];
char tab[100];
int valid = false;
printf("In fonction takeCoin.\n");
while (valid == false)
{
if (J[0] == sock)
{
sprintf(tab,"Joueur 1 entrez un nombre (1-3) : ");
write(sock,tab,strlen(tab));
}
else
{
sprintf(tab,"Joueur 2 entrez un nombre (1-3) : ");
write(sock,tab,strlen(tab));
}
recv(sock,tCoin,3,0);
printf("tCoin : %s\n",tCoin);
coin = atoi(tCoin);
if ((coin > 0) && (coin <= 3))
valid = true;
else
{
sprintf(tab,"Le nombre doit être entre 1 et 3 bord inclus.\n");
write(sock,tab,46*sizeof(char));
}
}
}
void *func_j1(void *arg)
{
int sock = *((int *)arg);
int coin;
int nCoinT;
char tab[100];
char tCoin[3];
sprintf(tab,"Jeux des pièces.\n");
write(sock,tab,strlen(tab));
sprintf(tab,"Vous etes le joueur 1.\n");
write(sock,tab,strlen(tab));
sprintf(tab,"Attende du joueur 2.\n");
write(sock,tab,strlen(tab));
sem_wait(&semaphore);
sprintf(tab,"joueur 2 Trouver.\n");
write(sock,tab,strlen(tab));
sprintf(tab,"La partie commence.\n");
write(sock,tab,strlen(tab));
initCoin(tab);
write(sock,tab,strlen(tab));
pthread_mutex_lock(&mutex);
nCoinT = nCoin;
pthread_mutex_unlock(&mutex);
while (nCoinT >= 2)
{
takeCoin(sock, coin);
}
close(sock);
pthread_exit(NULL);
}
void *func_j2(void *arg)
{
int sock = *((int *)arg);
int nCoinT;
int coin;
char tab[100];
sprintf(tab,"Jeux des pièces.\n");
write(sock,tab,strlen(tab));
sem_post(&semaphore);
sprintf(tab,"Vous etes le joueur 2.\n");
write(sock,tab,strlen(tab));
sprintf(tab,"La partie commencer.\n");
write(sock,tab,strlen(tab));
initCoin(tab);
write(sock,tab,strlen(tab));
pthread_mutex_lock(&mutex);
nCoinT = nCoin;
pthread_mutex_unlock(&mutex);
while (nCoinT >= 2)
{
sprintf(tab,"Le joueur 1 est en train de jouer.\n");
write(sock,tab,strlen(tab));
sem_wait(&semaphore);
//takeCoin(sock, coin);
}
close(sock);
pthread_exit(NULL);
}
int affiche_adresse_socket(int sock)
{
struct sockaddr_in adresse;
socklen_t longueur;
longueur = sizeof(struct sockaddr_in);
if (getsockname(sock, (struct sockaddr*)&adresse, &longueur) < 0)
{
fprintf(stderr, "Erreur getsockname\n");
return -1;
}
printf("IP = %s, Port = %u\n", inet_ntoa(adresse.sin_addr), ntohs(adresse.sin_port));
return 0;
}
int main(void)
{
int sock_contact;
int sock_connectee;
int j;
pthread_t th1;
pthread_t th2;
struct sockaddr_in adresse;
socklen_t longueur;
sock_contact = cree_socket_tcp_ip();
if (sock_contact < 0)
return -1;
listen(sock_contact, 5);
printf("Mon adresse (sock contact) -> ");
affiche_adresse_socket(sock_contact);
sem_init (&semaphore, 0, 0);
while (1)
{
printf("Attende d'un client.\n");
longueur = sizeof(struct sockaddr_in);
sock_connectee = accept(sock_contact, (struct sockaddr*)&adresse, &longueur);
printf("Client trouver.\n");
printf("Client socket : %d\n",sock_connectee);
J[j] = sock_connectee;
if (j == 0)
pthread_create(&th1, NULL, func_j1, &sock_connectee);
else
pthread_create(&th2, NULL, func_j2, &sock_connectee);
j++;
}
return 0;
}
client code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <pthread.h>
#define BUFFER_SIZE 256
int cree_socket_tcp_client(int argc, char** argv)
{
struct sockaddr_in adresse;
int sock;
if (argc != 3)
{
fprintf(stderr, "Usage : %s adresse port\n", argv[0]);
exit(0);
}
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
fprintf(stderr, "Erreur socket\n");
return -1;
}
memset(&adresse, 0, sizeof(struct sockaddr_in));
adresse.sin_family = AF_INET;
adresse.sin_port = htons(atoi(argv[2]));
inet_aton(argv[1], &adresse.sin_addr);
if (connect(sock, (struct sockaddr*) &adresse, sizeof(struct sockaddr_in)) < 0)
{
close(sock);
fprintf(stderr, "Erreur connect\n");
return -1;
}
return sock;
}
void *fRecv(void *arg)
{
int sock = *((int *)arg);
int len;
char msg[100];
while((len = recv(sock,msg,100,0)) > 0)
{
msg[len] = '\0';
printf("%s",msg);
}
}
void *fSend(void *arg)
{
int sock = *((int *)arg);
int len;
char msg[100];
while (1)
{
fgets(msg,100,stdin);
len = write(sock,msg,strlen(msg));
if(len < 0)
printf("\n message not sent \n");
}
}
int main(int argc, char **argv)
{
int sock=cree_socket_tcp_client(argc, argv);
int i = 0;
pthread_t tRecv;
pthread_t tSend;
char tab[100];
char tab2[100];
char fin[4] ="fin";
pthread_create(&tRecv, NULL, fRecv, &sock);
pthread_create(&tSend, NULL, fSend, &sock);
pthread_join(tRecv, NULL);
close(sock);
}
I program on a virtual machine, I don't know if it matters.