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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 LCCWIN32
#include <winsock.h>
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#include <time.h>
// 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
/* Removed Cygwin FD_SETSIZE declarations, now are directly passed on to the compiler through Makefile [Valaris] */
// Struct declaration
struct socket_data{
int eof;
time_t created;
int connected;
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
#ifdef LCCWIN32
#undef FD_SETSIZE
#define FD_SETSIZE 4096
#endif
// save file descriptors for important stuff
#define SOFT_LIMIT (FD_SETSIZE - 50)
// socket timeout to establish a full connection in seconds
#define CONNECT_TIMEOUT 15
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 RFIFOSKIP(int fd,int len);
int do_sendrecv(int next);
int do_parsepacket(void);
void do_socket(void);
void set_defaultparse(int (*defaultparse)(int));
int Net_Init(void);
int fclose_(FILE *fp);
FILE *fopen_(const char *path, const char *mode);
int free_fds();
#endif // _SOCKET_H_
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