static void on_recv(void *ud, zn_Tcp *tcp, unsigned err, unsigned count) {
zn_BufferPoolNode *data = (zn_BufferPoolNode*)ud;
if (err != ZN_OK) {
zn_deltcp(tcp);
zn_putbuffer(&pool, data);
return;
}
zn_recvfinish(&data->recv, count);
zn_recv(tcp, zn_recvbuff(&data->recv), zn_recvsize(&data->recv),
on_recv, ud);
}
static void on_accept(void *ud, zn_Accept *accept, unsigned err, zn_Tcp *tcp) {
zn_BufferPoolNode *data = zn_getbuffer(&pool);
if (err != ZN_OK)
return;
zn_recvonheader(&data->recv, on_header, data);
zn_recvonpacket(&data->recv, on_packet, data);
data->tcp = tcp;
if (zn_recv(tcp, zn_recvbuff(&data->recv), zn_recvsize(&data->recv),
on_recv, data) != ZN_OK)
zn_deltcp(tcp);
zn_accept(accept, on_accept, ud);
}
static void on_recv(void *ud, zn_Tcp *tcp, unsigned err, unsigned count) {
zn_BufferPoolNode *node = (zn_BufferPoolNode*)ud;
if (err != ZN_OK) {
zn_putbuffer(&pool, node);
zn_deltcp(tcp);
return;
}
recv_count += count;
zn_recvfinish(&node->recv, count);
zn_recv(tcp,
zn_recvbuff(&node->recv),
zn_recvsize(&node->recv), on_recv, ud);
}
static void on_client_recv(void *ud, zn_Tcp *tcp, unsigned err, unsigned count) {
zn_BufferPoolNode *data = (zn_BufferPoolNode*)ud;
if (err != ZN_OK) {
++recv_err;
client_error(tcp, data);
return;
}
++recv_ok;
recv_bytes += count;
zn_recvfinish(&data->recv, count);
zn_recv(tcp, zn_recvbuff(&data->recv), zn_recvsize(&data->recv),
on_client_recv, ud);
}
static void on_connect(void *ud, zn_Tcp *tcp, unsigned err) {
zn_BufferPoolNode *node = (zn_BufferPoolNode*)ud;
if (err != ZN_OK) {
zn_putbuffer(&pool, node);
zn_deltcp(tcp);
return;
}
++connect_count;
zn_recv(tcp,
zn_recvbuff(&node->recv),
zn_recvsize(&node->recv), on_recv, ud);
if (zn_sendprepare(&node->send, data, DATA_SIZE+2))
zn_send(tcp,
zn_sendbuff(&node->send),
zn_sendsize(&node->send), on_send, ud);
}
static void on_connect(void *ud, zn_Tcp *tcp, unsigned err) {
zn_BufferPoolNode *data = (zn_BufferPoolNode*)ud;
if (err != ZN_OK) {
client_error(tcp, ud);
return;
}
if (zn_recv(tcp, zn_recvbuff(&data->recv), zn_recvsize(&data->recv),
on_client_recv, ud) != ZN_OK)
client_error(tcp, ud);
else if (zn_sendprepare(&data->send, send_data, BLOCK_SIZE)
&& zn_send(tcp, zn_sendbuff(&data->send), zn_sendsize(&data->send),
on_client_send, ud) != ZN_OK)
client_error(tcp, ud);
}
static void on_accept(void *ud, zn_Accept *accept, unsigned err, zn_Tcp *tcp) {
zn_BufferPoolNode *node;
if (err != ZN_OK)
exit(2);
++connect_count;
node = zn_getbuffer(&pool);
zn_recvonheader(&node->recv, on_header, node);
zn_recvonpacket(&node->recv, on_packet, node);
node->tcp = tcp;
if (zn_recv(tcp,
zn_recvbuff(&node->recv),
zn_recvsize(&node->recv), on_recv, node) != ZN_OK) {
zn_putbuffer(&pool, node);
zn_deltcp(tcp);
}
zn_accept(accept, on_accept, ud);
}