wip

src/tcp.h

@@ -47,6 +47,8 @@ struct tcp_listener_t {
     tcp_connection_t *connections_waiting_for_ack;
     tcp_connection_t *connections_waiting_for_accept_head;
     tcp_connection_t *connections_waiting_for_accept_tail;
+    tcp_connection_t *connections_waiting_for_fin;
+
     void (*callback_ready_to_accept)(void*);
     void  *callback_data;
 };
@@ -60,6 +62,8 @@ struct tcp_connection_t {
     void (*callback_ready_to_recv)(void*);
     void (*callback_ready_to_send)(void*);
     
+    bool read_only;
+
     ip_address_t peer_ip; // Network byte order
     uint16_t     peer_port; // CPU byte order
 
@@ -92,16 +96,14 @@ struct tcp_connection_t {
     uint32_t snd_una; // SND.UNA from RFC 793
                       // It's the sequence number of the last
                       // byte sent and acknowledged by the peer.
-      
-    tcp_segment_t out_header;                         // There must be no padding between
-    char          out_buffer[TCP_OUTPUT_BUFFER_SIZE]; // these two
-    char           in_buffer[TCP_INPUT_BUFFER_SIZE];
+
+    char out_buffer[TCP_OUTPUT_BUFFER_SIZE];
+    char in_buffer[TCP_INPUT_BUFFER_SIZE];
 };
-static_assert(offsetof(tcp_connection_t, out_buffer) == offsetof(tcp_connection_t, out_header) + sizeof(tcp_segment_t));
 
 typedef struct {
     void *data;
-    int (*send)(void *data, ip_address_t ip, const void *src, size_t len);
+    int (*send)(void *data, ip_address_t ip, const slice_list_t *slices, size_t num_slices);
 } tcp_callbacks_t;
 
 struct tcp_state_t {
@@ -123,5 +125,6 @@ tcp_listener_t   *tcp_listener_create(tcp_state_t *state, uint16_t port, void *d
 void              tcp_listener_destroy(tcp_listener_t *listener);
 tcp_connection_t *tcp_listener_accept(tcp_listener_t *listener, void *callback_data, void (*callback_ready_to_recv)(void*), void (*callback_ready_to_send)(void*));
 void              tcp_connection_destroy(tcp_connection_t *connection);
+void              tcp_connection_finish(tcp_connection_t *connection);
 size_t            tcp_connection_recv(tcp_connection_t *connection, void *dst, size_t len);
 size_t            tcp_connection_send(tcp_connection_t *connection, const void *src, size_t len);