static void* do_icmp_parse(void *arg)
{
if (arg) {}
while (1)
{
struct itun_packet *packet = packets_take(params->packets_receive);
if (packet == NULL)
break;
struct connection_data *data = (struct connection_data *) packet->connection;
switch (packet->header->type)
{
case TYPE_CONNECT:
{
struct connection_data *data = init_connection_data(packet);
if (data == NULL)
break;
struct in_addr addr = {packet->client_ip};
char *from_ip = inet_ntoa(addr);
printf("Received connect packet from %s\n", from_ip);
if (pthread_create(&data->server_connect, NULL, do_server_connect, (void *) data) == -1)
error("Error %d occured in pthread_create(server_connect)", errno);
break;
}
case TYPE_SHUTDOWN_READ:
{
if (is_shutdown_done(data, SHUTDOWN_WRITE))
break;
printf("Received SHUTDOWN_READ command\n");
data_add(params->client_buffer, NULL, 0, data);
break;
}
case TYPE_SHUTDOWN_WRITE:
{
if (is_shutdown_done(data, SHUTDOWN_READ))
break;
printf("Received SHUTDOWN_WRITE command\n");
data_add(data->client_buffer, NULL, 0, data);
break;
}
case TYPE_DATA:
{
printf("I->L readed %d bytes\n", packet->header->length);
data_add(data->client_buffer, packet->data, packet->header->length, data);
break;
}
}
packets_free_packet(packet);
}
pthread_exit(NULL);
}
void start_client(config_t *config) {
thread_t *threads=NULL;
int i;
int j;
int rc;
int *status;
int mode;
conn_stats_t **tstat;
pthread_attr_t attr;
struct rlimit limits;
struct sigaction action;
sigset_t mask;
getrlimit( RLIMIT_NPROC ,&limits);
if(limits.rlim_max<config->threads+2) {
error_at_line(0,0,__FILE__,__LINE__, "Insufficient resources: NPROC < %d\n", config->threads+2);
return;
}
limits.rlim_cur=limits.rlim_max;
setrlimit(RLIMIT_NPROC, &limits);
threads=malloc(sizeof(thread_t)*config->threads);
memset(threads, 0, sizeof(thread_t)*config->threads);
for(i=0; i<config->threads; i++) {
threads[i].thread_idx=i;
if(config->recv_mode==ASYNC) {
if(i%2) {
mode=THREAD_ASYNC_RECV;
} else {
mode=THREAD_ASYNC_SEND;
}
} else {
mode=THREAD_SYNC;
}
switch(mode) {
case THREAD_SYNC:
break;
case THREAD_ASYNC_RECV:
threads[i].mode=THREAD_ASYNC_RECV;
break;
case THREAD_ASYNC_SEND:
threads[i].mode=THREAD_ASYNC_SEND;
threads[i].read=&threads[i+1];
threads[i].efd_write=epoll_create1(0);
threads[i].write=&threads[i];
//Since we are in ASYNC mode, we are hiding the extra 2x threads
//for stats keeping.
threads[i].thread_stats=&(config->stats->thread_stats[i/2]);
default:
break;
}
threads[i].mode=mode;
if(mode==THREAD_SYNC || mode==THREAD_ASYNC_SEND) {
threads[i].conns=malloc(sizeof(connection_t)*config->conns_per_thread);
memset(threads[i].conns,0,sizeof(connection_t)*config->conns_per_thread);
threads[i].write=&threads[i];
threads[i].efd_write=epoll_create1(0);
if(mode==THREAD_SYNC) {
threads[i].read=&threads[i];
threads[i].efd_read=epoll_create1(0);
threads[i].thread_stats=&(config->stats->thread_stats[i]);
} else {
threads[i].read=&threads[i+1];
//Since we are in ASYNC mode, we are hiding the extra 2x threads
//for stats keeping.
threads[i].thread_stats=&(config->stats->thread_stats[i/2]);
}
} else {
threads[i].read=&threads[i];
threads[i].write=&threads[i-1];
threads[i].efd_read=epoll_create1(0);
threads[i].thread_stats=&(config->stats->thread_stats[i/2]);
threads[i].conns=threads[i-1].conns;
}
threads[i].cfg=config;
if(mode==SYNC || i%2==0) {
for(j=0; j<config->conns_per_thread; j++) {
tstat=&threads[i].conns[j].conn_stats;
threads[i].conns[j].conn_stats=&threads[i].thread_stats->conn_stats[j];
threads[i].conns[j].cfg=config;
init_connection_data(config, &threads[i].conns[j], mode);
}
}
}
if(config->mcast_wait) {
//printf("mcast_wait\n");
mcast_wait();
}
action.sa_flags=SA_SIGINFO;
action.sa_sigaction=run_timeout;
sigemptyset(&action.sa_mask);
sigaction(SIG_RUNTIMEEXP, &action, NULL);
sigemptyset(&mask);
sigaddset(&mask, SIG_RUNTIMEEXP);
if (sigprocmask(SIG_UNBLOCK, &mask, NULL) == -1) {
perror("sigprocmask");
}
if(config->threads==1) {
rc=(long int)client_thread((void*)&threads[0]);
} else {
for(i=0; i<config->threads; i++) {
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
rc=pthread_create(&threads[i].id, &attr, client_thread, (void *)&threads[i]);
pthread_attr_destroy(&attr);
}
for(i=0; i<config->threads; i++) {
//printf("waiting on thread %d... ", i);
rc=pthread_join(threads[i].id,(void **)&status);
//printf("joined thread %d, status=%ld\n",(int)threads[i].id, (long int)status);
}
}
sigemptyset(&mask);
sigaddset(&mask, SIG_RUNTIMEEXP);
if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1) {
perror("sigprocmask");
}
action.sa_flags=0;
action.sa_handler=SIG_IGN;
sigemptyset(&action.sa_mask);
sigaction(SIG_RUNTIMEEXP, &action, NULL);
for(i=0; i<config->threads; i++) {
if(threads[i].conns) {
for(j=0;j<config->conns_per_thread; j++) {
if(threads[i].conns[j].req_buffer) {
free(threads[i].conns[j].req_buffer);
}
if(threads[i].conns[j].rx_buff) {
free(threads[i].conns[j].rx_buff);
}
if(threads[i].conns[j].tx_buffer) {
free(threads[i].conns[j].tx_buffer);
}
if(threads[i].conns[j].frame_buffer) {
free(threads[i].conns[j].frame_buffer);
}
//if(threads[i].conns[j].out_transactions) {
// free(threads[i].conns[j].out_transactions);
//}
}
free(threads[i].conns);
threads[i].read->conns=NULL;
threads[i].write->conns=NULL;
}
}
free(threads);
return;
}