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// original : core.h 2003/03/14 11:55:25 Rev 1.4
#ifndef _SOCKET_H_
#define _SOCKET_H_
#include <stdio.h>
#ifdef __WIN32
#include <winsock.h>
#define close(fd) closesocket(fd)
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#include <time.h>
#include "malloc.h"
extern time_t tick_;
extern time_t stall_time_;
// define declaration
// fd���s���Ȏ��ɑ���ɓǂݏ�������o�b�t�@
#define SOCKET_DUMMY_SIZE 32768
extern unsigned char socket_dummy[SOCKET_DUMMY_SIZE];
#define RFIFOSPACE(fd) (fd <= 0 ? SOCKET_DUMMY_SIZE : session[fd]->max_rdata-session[fd]->rdata_size)
#define RFIFOP(fd,pos) (fd <= 0 ? socket_dummy : session[fd]->rdata+session[fd]->rdata_pos+(pos))
// use function instead of macro.
#define RFIFOB(fd,pos) (*(unsigned char*)RFIFOP(fd,pos))
#define RFIFOW(fd,pos) (*(unsigned short*)RFIFOP(fd,pos))
#define RFIFOL(fd,pos) (*(unsigned int*)RFIFOP(fd,pos))
#define RFIFOREST(fd) (fd <= 0 ? 0 : session[fd]->rdata_size-session[fd]->rdata_pos)
#define RFIFOFLUSH(fd) (fd <= 0 ? 0 : memmove(session[fd]->rdata,RFIFOP(fd,0),RFIFOREST(fd)),session[fd]->rdata_size=RFIFOREST(fd),session[fd]->rdata_pos=0)
//#define RFIFOSKIP(fd,len) ((session[fd]->rdata_size-session[fd]->rdata_pos-(len)<0) ? (fprintf(stderr,"too many skip\n"),exit(1)) : (session[fd]->rdata_pos+=(len)))
#define RBUFP(p,pos) (((unsigned char*)(p))+(pos))
#define RBUFB(p,pos) (*(unsigned char*)RBUFP((p),(pos)))
#define RBUFW(p,pos) (*(unsigned short*)RBUFP((p),(pos)))
#define RBUFL(p,pos) (*(unsigned int*)RBUFP((p),(pos)))
#define WFIFOSPACE(fd) (fd <= 0 ? SOCKET_DUMMY_SIZE : session[fd]->max_wdata-session[fd]->wdata_size)
#define WFIFOP(fd,pos) (fd <= 0 ? socket_dummy : session[fd]->wdata+session[fd]->wdata_size+(pos))
#define WFIFOB(fd,pos) (*(unsigned char*)WFIFOP(fd,pos))
#define WFIFOW(fd,pos) (*(unsigned short*)WFIFOP(fd,pos))
#define WFIFOL(fd,pos) (*(unsigned int*)WFIFOP(fd,pos))
// use function instead of macro.
//#define WFIFOSET(fd,len) (session[fd]->wdata_size = (session[fd]->wdata_size+(len)+2048 < session[fd]->max_wdata) ? session[fd]->wdata_size+len : session[fd]->wdata_size)
#define WBUFP(p,pos) (((unsigned char*)(p))+(pos))
#define WBUFB(p,pos) (*(unsigned char*)WBUFP((p),(pos)))
#define WBUFW(p,pos) (*(unsigned short*)WBUFP((p),(pos)))
#define WBUFL(p,pos) (*(unsigned int*)WBUFP((p),(pos)))
#ifdef __INTERIX
#define FD_SETSIZE 4096
#endif // __INTERIX
/* Removed Cygwin FD_SETSIZE declarations, now are directly passed on to the compiler through Makefile [Valaris] */
// Struct declaration
struct socket_data{
int eof;
unsigned char *rdata,*wdata;
int max_rdata,max_wdata;
int rdata_size,wdata_size;
time_t rdata_tick;
int rdata_pos;
struct sockaddr_in client_addr;
int (*func_recv)(int);
int (*func_send)(int);
int (*func_parse)(int);
int (*func_console)(char*);
void* session_data;
};
// Data prototype declaration
#ifdef _WIN32
#undef FD_SETSIZE
#define FD_SETSIZE 4096
#endif
extern struct socket_data *session[FD_SETSIZE];
extern int rfifo_size,wfifo_size;
extern int fd_max;
// Function prototype declaration
int make_listen_port(int);
int make_listen_bind(long,int);
int make_connection(long,int);
int delete_session(int);
int realloc_fifo(int fd,int rfifo_size,int wfifo_size);
int WFIFOSET(int fd,int len);
int RFIFOSKIP(int fd,int len);
int do_sendrecv(int next);
int do_parsepacket(void);
void do_socket(void);
extern void flush_fifos();
extern void set_nonblocking(int fd, int yes);
int start_console(void);
void set_defaultparse(int (*defaultparse)(int));
void set_defaultconsoleparse(int (*defaultparse)(char*));
int Net_Init(void);
extern unsigned int addr_[16]; // ip addresses of local host (host byte order)
extern unsigned int naddr_; // # of ip addresses
#endif // _SOCKET_H_
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