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#define __EXTENSIONS__
#define _BSD_COMPAT
#include <lib9.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "styxserver.h"
#include "styxaux.h"
typedef struct Fdset Fdset;
struct Fdset
{
fd_set infds, outfds, excfds, r_infds, r_outfds, r_excfds;
};
int
styxinitsocket(void)
{
return 0;
}
void
styxendsocket(void)
{
}
void
styxclosesocket(int fd)
{
close(fd);
}
int
styxannounce(Styxserver *server, char *port)
{
struct sockaddr_in sin;
int s, one;
USED(server);
s = socket(AF_INET, SOCK_STREAM, 0);
if(s < 0)
return s;
one = 1;
if(setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char*)&one, sizeof(one)) < 0)
fprint(2, "setsockopt failed\n");
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = 0;
sin.sin_port = htons(atoi(port));
if(bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0){
close(s);
return -1;
}
if(listen(s, 20) < 0){
close(s);
return -1;
}
return s;
}
int
styxaccept(Styxserver *server)
{
struct sockaddr_in sin;
int s;
socklen_t len;
len = sizeof(sin);
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
s = accept(server->connfd, (struct sockaddr *)&sin, &len);
if(s < 0){
if(errno != EINTR)
fprint(2, "error in accept: %s\n", strerror(errno));
}
return s;
}
void
styxinitwait(Styxserver *server)
{
Fdset *fs;
server->priv = fs = malloc(sizeof(Fdset));
FD_ZERO(&fs->infds);
FD_ZERO(&fs->outfds);
FD_ZERO(&fs->excfds);
FD_SET(server->connfd, &fs->infds);
}
int
styxnewcall(Styxserver *server)
{
Fdset *fs;
fs = server->priv;
return FD_ISSET(server->connfd, &fs->r_infds);
}
void
styxnewclient(Styxserver *server, int s)
{
Fdset *fs;
fs = server->priv;
FD_SET(s, &fs->infds);
}
void
styxfreeclient(Styxserver *server, int s)
{
Fdset *fs;
fs = server->priv;
FD_CLR(s, &fs->infds);
}
int
styxnewmsg(Styxserver *server, int s)
{
Fdset *fs;
fs = server->priv;
return FD_ISSET(s, &fs->r_infds) || FD_ISSET(s, &fs->r_excfds);
}
char*
styxwaitmsg(Styxserver *server)
{
struct timeval seltime;
int nfds;
Fdset *fs;
fs = server->priv;
fs->r_infds = fs->infds;
fs->r_outfds = fs->outfds;
fs->r_excfds = fs->excfds;
seltime.tv_sec = 10;
seltime.tv_usec = 0L;
nfds = select(sizeof(fd_set)*8, &fs->r_infds, &fs->r_outfds, &fs->r_excfds, &seltime);
if(nfds < 0 && errno != EINTR)
return"error in select";
return nil;
}
int
styxrecv(Styxserver *server, int fd, char *buf, int n, int m)
{
return recv(fd, buf, n, m);
}
int
styxsend(Styxserver *server, int fd, char *buf, int n, int m)
{
return send(fd, buf, n, m);
}
void
styxexit(int n)
{
exit(n);
}
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