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Created a shiny new abstraction for the socket handling. Has many

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advantages:
 - protocol modules can call sk_write() without having to worry
   about writes blocking, because blocking writes are handled in the
   abstraction layer and retried later.
 - `Lost connection while sending' is a thing of the past.
 - <winsock.h> is no longer needed in most modules, because
   "putty.h" doesn't have to declare `SOCKET' variables any more,
   only the abstracted `Socket' type.
 - select()-equivalent between multiple sockets will now be handled
   sensibly, which opens the way for things like SSH port
   forwarding.

[originally from svn r744]
This commit is contained in:
Simon Tatham
2000-10-23 10:32:37 +00:00
parent 882f653081
commit bbbda4110b
20 changed files with 413 additions and 772 deletions
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7
putty.h
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@ -1,6 +1,8 @@
#ifndef PUTTY_PUTTY_H
#define PUTTY_PUTTY_H
#include "network.h"
#define PUTTY_REG_POS "Software\\SimonTatham\\PuTTY"
#define PUTTY_REG_PARENT "Software\\SimonTatham"
#define PUTTY_REG_PARENT_CHILD "PuTTY"
@ -104,12 +106,11 @@ typedef enum {
} VT_Mode;
typedef struct {
char *(*init) (HWND hwnd, char *host, int port, char **realhost);
int (*msg) (WPARAM wParam, LPARAM lParam);
char *(*init) (char *host, int port, char **realhost);
void (*send) (char *buf, int len);
void (*size) (void);
void (*special) (Telnet_Special code);
SOCKET (*socket) (void);
Socket (*socket) (void);
int (*sendok) (void);
int default_port;
} Backend;