terom@1: #ifndef SOCK_INTERNAL_H
terom@1: #define SOCK_INTERNAL_H
terom@1: 
terom@1: #include "sock.h"
terom@1: 
terom@1: /*
terom@1:  * The base type struct, which defines the method table.
terom@1:  */
terom@1: struct sock_stream_type {
terom@1:     /* method table */
terom@1:     struct sock_stream_methods {
terom@1:         /* Normal read(2) */
terom@3:         err_t (*read) (struct sock_stream *sock, void *buf, size_t len);
terom@1: 
terom@1:         /* Normal write(2) */
terom@3:         err_t (*write) (struct sock_stream *sock, const void *buf, size_t len);
terom@1: 
terom@1:     } methods;
terom@1: };
terom@1: 
terom@1: /*
terom@1:  * The base sock_stream type, as used by the sock_stream_* functions.
terom@1:  *
terom@1:  * The specific implementations should embed this at the start of their type-specific struct, and then cast around
terom@1:  * as appropriate.
terom@1:  */
terom@1: struct sock_stream {
terom@3:     /* The sock_stream_type for this socket */
terom@1:     struct sock_stream_type *type;
terom@3: 
terom@3:     /* Last error info */
terom@3:     struct error_info err;
terom@1: };
terom@1: 
terom@1: #define SOCK_FROM_BASE(sock, type) ((type*) sock)
terom@3: #define SOCK_ERR(sock) ((sock)->err)
terom@3: 
terom@3: /*
terom@3:  * Initialize a sock_stream with the given sock_stream_type.
terom@3:  *
terom@3:  * The sock_stream should be initialized to zero. It is a bug to call this twice.
terom@3:  */
terom@3: void sock_stream_init (struct sock_stream *sock, struct sock_stream_type *type);
terom@1: 
terom@1: #endif /* SOCK_INTERNAL_H */