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// original : core.h 2003/03/14 11:55:25 Rev 1.4 
 
#ifndef	_SOCKET_H_ 
#define _SOCKET_H_ 
 
#include  
#include  
#include  
#include  
 
// define declaration 
 
#define RFIFOP(fd,pos) (session[fd]->rdata+session[fd]->rdata_pos+(pos)) 
#define RFIFOB(fd,pos) (*(unsigned char*)(session[fd]->rdata+session[fd]->rdata_pos+(pos))) 
#define RFIFOW(fd,pos) (*(unsigned short*)(session[fd]->rdata+session[fd]->rdata_pos+(pos))) 
#define RFIFOL(fd,pos) (*(unsigned int*)(session[fd]->rdata+session[fd]->rdata_pos+(pos))) 
#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 RFIFOREST(fd) (session[fd]->rdata_size-session[fd]->rdata_pos) 
#define RFIFOFLUSH(fd) (memmove(session[fd]->rdata,RFIFOP(fd,0),RFIFOREST(fd)),session[fd]->rdata_size=RFIFOREST(fd),session[fd]->rdata_pos=0) 
#define RFIFOSPACE(fd) (session[fd]->max_rdata-session[fd]->rdata_size) 
#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) (session[fd]->max_wdata-session[fd]->wdata_size) 
#define WFIFOP(fd,pos) (session[fd]->wdata+session[fd]->wdata_size+(pos)) 
#define WFIFOB(fd,pos) (*(unsigned char*)(session[fd]->wdata+session[fd]->wdata_size+(pos))) 
#define WFIFOW(fd,pos) (*(unsigned short*)(session[fd]->wdata+session[fd]->wdata_size+(pos))) 
#define WFIFOL(fd,pos) (*(unsigned int*)(session[fd]->wdata+session[fd]->wdata_size+(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 
 
#ifdef CYGWIN 
#undef FD_SETSIZE 
#define FD_SETSIZE 4096 
#endif 
 
 
// Struct declaration 
 
struct socket_data{ 
	int eof; 
	unsigned char *rdata,*wdata; 
	int max_rdata,max_wdata; 
	int rdata_size,wdata_size; 
	int rdata_pos; 
	struct sockaddr_in client_addr; 
	int (*func_recv)(int); 
	int (*func_send)(int); 
	int (*func_parse)(int); 
	void* session_data; 
}; 
 
// Data prototype declaration 
 
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_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 do_sendrecv(int next); 
int do_parsepacket(void); 
void do_socket(void); 
 
void set_defaultparse(int (*defaultparse)(int)); 
 
#endif	// _SOCKET_H_