1 files changed, 15 insertions, 7 deletions

diff --git a/src/io.h b/src/io.h
index 495bdc6..72602dd 100644
--- a/src/io.h
+++ b/src/io.h
@@ -17,14 +17,15 @@
 #include <stdio.h>
 #include <lua.h>
 
+#include "timeout.h"
+
 /* IO error codes */
 enum {
     IO_DONE,            /* operation completed successfully */
-    IO_RETRY,           /* please try again */
     IO_TIMEOUT,         /* operation timed out */
     IO_CLOSED,          /* the connection has been closed */
-    IO_REFUSED,         /* transfer has been refused */
-    IO_ERROR            /* something else wrong... */
+    IO_CLIPPED,         /* maxium bytes count reached */
+    IO_USER             /* last element in enum is user custom error */
 };
 
 /* interface to send function */
@@ -33,7 +34,13 @@ typedef int (*p_send) (
     const char *data,   /* pointer to buffer with data to send */
     size_t count,       /* number of bytes to send from buffer */
     size_t *sent,       /* number of bytes sent uppon return */
-    int timeout         /* number of miliseconds left for transmission */
+    p_tm tm             /* timeout control */
+);
+
+/* returns an error string */
+typedef const char *(*p_geterr) (
+    void *ctx,          /* context needed by geterror */ 
+    int code            /* error code */
 );
  
 /* interface to recv function */
@@ -42,7 +49,7 @@ typedef int (*p_recv) (
     char *data,         /* pointer to buffer where data will be writen */
     size_t count,       /* number of bytes to receive into buffer */
     size_t *got,        /* number of bytes received uppon return */
-    int timeout         /* number of miliseconds left for transmission */
+    p_tm tm             /* timeout control */
 );
 
 /* IO driver definition */
@@ -50,11 +57,12 @@ typedef struct t_io_ {
     void *ctx;          /* context needed by send/recv */
     p_send send;        /* send function pointer */
     p_recv recv;        /* receive function pointer */
+    p_geterr geterr;    /* receive function pointer */
 } t_io;
 typedef t_io *p_io;
 
 const char *io_strerror(int code);
-void io_pusherror(lua_State *L, int code);
-void io_init(p_io io, p_send send, p_recv recv, void *ctx);
+void io_pusherror(lua_State *L, p_io io, int code);
+void io_init(p_io io, p_send send, p_recv recv, p_geterr geterr, void *ctx);
 
 #endif /* IO_H */