56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/* select.h
|
|
|
|
Copyright 1998, 1999, 2000, 2001, 2004 Red Hat, Inc.
|
|
|
|
This file is part of Cygwin.
|
|
|
|
This software is a copyrighted work licensed under the terms of the
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
details. */
|
|
|
|
/* Winsock select() types and macros */
|
|
|
|
/*
|
|
* Use this struct to interface to
|
|
* the system provided select.
|
|
*/
|
|
typedef struct winsock_fd_set
|
|
{
|
|
unsigned int fd_count;
|
|
HANDLE fd_array[1024]; /* Dynamically allocated. */
|
|
} winsock_fd_set;
|
|
|
|
/*
|
|
* Define the Win32 winsock definitions to have a prefix WINSOCK_
|
|
* so we can be explicit when we are using them.
|
|
*/
|
|
#define WINSOCK_FD_ISSET(fd, set) __WSAFDIsSet ((SOCKET)fd, (fd_set *)set)
|
|
#define WINSOCK_FD_SET(fd, set) do { \
|
|
(set)->fd_array[(set)->fd_count++]=fd;\
|
|
} while(0)
|
|
#define WINSOCK_FD_ZERO(set) ((set)->fd_count = 0)
|
|
#define WINSOCK_FD_CLR(fd, set) do { \
|
|
u_int __i; \
|
|
for (__i = 0; __i < (set)->fd_count ; __i++) { \
|
|
if ((set)->fd_array[__i] == fd) { \
|
|
while (__i < (set)->fd_count-1) { \
|
|
(set)->fd_array[__i] = \
|
|
(set)->fd_array[__i+1]; \
|
|
__i++; \
|
|
} \
|
|
(set)->fd_count--; \
|
|
break; \
|
|
} \
|
|
} \
|
|
} while(0)
|
|
|
|
extern "C" int PASCAL __WSAFDIsSet(SOCKET, fd_set*);
|
|
extern "C" int PASCAL win32_select(int, fd_set*, fd_set*, fd_set*, const struct timeval*);
|
|
|
|
/*
|
|
* call to winsock's select() -
|
|
* type coercion need to appease confused prototypes
|
|
*/
|
|
#define WINSOCK_SELECT(nfd, rd, wr, ex, timeo) \
|
|
win32_select (nfd, (fd_set *) rd, (fd_set *) wr, (fd_set *) ex, timeo)
|