/* $OpenXM: OpenXM_contrib2/asir2000/io/tcpf.c,v 1.2 1999/12/13 01:56:04 noro Exp $ */
#if INET
#include "ca.h"
#include "parse.h"
#include "com.h"
#include <signal.h>
#if !defined(VISUAL)
#include <sys/types.h>
#include <pwd.h>
#endif
#include "ox.h"

#if defined(VISUAL)
#include <winsock.h>
#endif

#define OX_XTERM "ox_xterm"

#if !defined(_PA_RISC1_1)
#define RSH "rsh"
#else
#define RSH "remsh"
#endif

static struct m_c {
	int m,c,af_unix;
} *m_c_tab;

static int m_c_i,m_c_s;

#if MPI
extern int mpi_nprocs;
#define valid_mctab_index(ind)\
if((ind)<0||(ind)>=(mpi_nprocs-1)){error("invalid server id");}
#else
#define valid_mctab_index(ind)\
if((ind)<0||(ind)>=m_c_i||\
(!m_c_tab[ind].m&&!m_c_tab[ind].c)){error("invalid server id");}
#endif

int register_server();
int get_mcindex(int);

void Pox_launch(),Pox_launch_nox(),Pox_launch_main();
void Pox_launch_generic();
void Pox_shutdown();

void Pox_rpc(),Pox_cmo_rpc(),Pox_reset(),Pox_sync(),Pox_select();

void Pox_push_local(),Pox_push_cmo(),Pox_push_vl(),Pox_push_cmd();

void Pox_pop_local(),Pox_pop_cmo();
void Pox_pop0_local(),Pox_pop0_cmo();
void Pox_pop_string(),Pox_pop0_string();
void Pox_get(),Pox_pops();

void Pox_execute_function(),Pox_execute_string();
void Pox_setname(), Pox_evalname();
void Pox_flush();
void Pgenerate_port(),Ptry_bind_listen(),Ptry_connect(),Ptry_accept();
void Pregister_server();
void Pox_get_serverinfo();

void ox_launch_generic();

pointer bevalf();

struct ftab tcp_tab[] = {
	{"ox_get_serverinfo",Pox_get_serverinfo,-1},
	{"generate_port",Pgenerate_port,-1},
	{"try_bind_listen",Ptry_bind_listen,1},
	{"try_connect",Ptry_connect,2},
	{"try_accept",Ptry_accept,2},
	{"register_server",Pregister_server,4},
	{"ox_flush",Pox_flush,1},
	{"ox_launch",Pox_launch,-3},
	{"ox_launch_nox",Pox_launch_nox,-3},
	{"ox_launch_generic",Pox_launch_generic,7},
	{"ox_shutdown",Pox_shutdown,1},

	{"ox_rpc",Pox_rpc,-99999999},
	{"ox_cmo_rpc",Pox_cmo_rpc,-99999999},

	{"ox_sync",Pox_sync,1},
#if !MPI
	{"ox_reset",Pox_reset,-2},
	{"ox_select",Pox_select,-2},
#endif

	{"ox_pop_string",Pox_pop_string,1},
	{"ox_pop0_string",Pox_pop0_string,1},
	{"ox_pop_local",Pox_pop_local,1},
	{"ox_pop0_local",Pox_pop0_local,1},
	{"ox_pop_cmo",Pox_pop_cmo,1},
	{"ox_pop0_cmo",Pox_pop0_cmo,1},
	{"ox_get",Pox_get,1},
	{"ox_pops",Pox_pops,-2},

	{"ox_push_vl",Pox_push_vl,1},
	{"ox_push_local",Pox_push_local,-99999999},
	{"ox_push_cmo",Pox_push_cmo,-99999999},
	{"ox_push_cmd",Pox_push_cmd,2},

	{"ox_setname",Pox_setname,2},
	{"ox_evalname",Pox_evalname,2},

	{"ox_execute_string",Pox_execute_string,2},
	{"ox_execute_function",Pox_execute_function,3},


	{0,0,0},
};

extern struct IOFP iofp[];
extern MATHCAP my_mathcap;

char *getenv();

void Pox_get_serverinfo(arg,rp)
NODE arg;
LIST *rp;
{
	int i,c;
	Q sid;
	NODE t,n0,n;
	LIST list,l;

	if ( !arg ) {
		for ( i = 0, n0 = 0; i < m_c_i; i++ )
			if ( m_c_tab[i].m || m_c_tab[i].c ) {
				c = m_c_tab[i].c;
				ox_get_serverinfo(c,&list);
				STOQ(i,sid);
				t = mknode(2,sid,list);
				MKLIST(l,t);
				NEXTNODE(n0,n);
				BDY(n) = (pointer)l;
			}
		if ( n0 )
			NEXT(n) = 0;
		MKLIST(*rp,n0);	
	} else {
		i = QTOS((Q)ARG0(arg));
		if ( i >= 0 && i < m_c_i && (m_c_tab[i].m || m_c_tab[i].c) )
			ox_get_serverinfo(m_c_tab[i].c,rp);
		else {
			MKLIST(*rp,0);
		}
	}
}

/*
  if noarg or arg[0]==0 then use IP socket and return a port number
  else use UNIX socket and return a string which represents a path name
*/

void Pgenerate_port(arg,rp)
NODE arg;
Obj *rp;
{
	char port_str[BUFSIZ];
	int port;
	char *s;
	STRING str;
	Q q;

	if ( !arg || !ARG0(arg) ) {
		generate_port(0,port_str);
		port = atoi(port_str);
		STOQ(port,q);
		*rp = (Obj)q;
	} else {
		generate_port(1,port_str);
		s = (char *)MALLOC(strlen(port_str)+1);
		strcpy(s,port_str);
		MKSTR(str,s);
		*rp = (Obj)str;
	}
}

/*
 try_bind_listen(port)
*/

void Ptry_bind_listen(arg,rp)
NODE arg;
Q *rp;
{
	char port_str[BUFSIZ];
	int port,s,use_unix;

	if ( !ARG0(arg) || NUM(ARG0(arg)) ) {
		port = QTOS((Q)ARG0(arg));
		sprintf(port_str,"%d",port);
		use_unix = 0;
	} else {
		strcpy(port_str,BDY((STRING)ARG0(arg)));
		use_unix = 1;
	}
	s = try_bind_listen(use_unix,port_str);
	STOQ(s,*rp);
}

/*
 try_connect(host,port)
*/

void Ptry_connect(arg,rp)
NODE arg;
Q *rp;
{
	char port_str[BUFSIZ];
	char *host;
	int port,s,use_unix;

	if ( !ARG1(arg) || NUM(ARG1(arg)) ) {
		port = QTOS((Q)ARG1(arg));
		sprintf(port_str,"%d",port);
		use_unix = 0;
	} else {
		strcpy(port_str,BDY((STRING)ARG1(arg)));
		use_unix = 1;
	}
	host = BDY((STRING)ARG0(arg));
	s = try_connect(use_unix,host,port_str);
	STOQ(s,*rp);
}

/*
 try_accept(sock,port)
*/

void Ptry_accept(arg,rp)
NODE arg;
Q *rp;
{
	int use_unix,s;

	if ( !ARG1(arg) || NUM(ARG1(arg)) )
		use_unix = 0;
	else
		use_unix = 1;
	s = try_accept(use_unix,QTOS((Q)ARG0(arg)));
	STOQ(s,*rp);
}

/*
 register_server(cs,cport,ss,sport)
*/

void Pregister_server(arg,rp)
NODE arg;
Q *rp;
{
	int cs,ss,cn,sn,ind,use_unix,id;
	char cport_str[BUFSIZ],sport_str[BUFSIZ];
	MATHCAP server_mathcap;

	cs = QTOS((Q)ARG0(arg));		
	ss = QTOS((Q)ARG2(arg));		
	if ( !ARG1(arg) || NUM(ARG1(arg)) ) {
		sprintf(cport_str,"%d",QTOS((Q)ARG1(arg)));
		use_unix = 0;
	} else {
		strcpy(cport_str,BDY((STRING)ARG1(arg)));
		use_unix = 1;
	}
	if ( !ARG3(arg) || NUM(ARG3(arg)) ) {
		if ( use_unix )
			error("register_server : the protocol should conincide for two sockets");
		sprintf(sport_str,"%d",QTOS((Q)ARG3(arg)));
	} else {
		if ( !use_unix )
			error("register_server : the protocol should conincide for two sockets");
		strcpy(sport_str,BDY((STRING)ARG3(arg)));
	}

	/* client mode */
	cn = get_iofp(cs,cport_str,0);
	sn = get_iofp(ss,sport_str,0);

	/* register server to the server list */
	ind = register_server(use_unix,cn,sn);

	/* request remote mathcap */
	ox_send_cmd(sn,SM_mathcap);
	ox_send_cmd(sn,SM_popCMO);
	ox_flush_stream_force(sn);
	ox_recv(sn,&id,&server_mathcap);
	store_remote_mathcap(sn,server_mathcap);

	/* send my mathcap */
	create_my_mathcap("asir");
	ox_send_data(sn,my_mathcap);
	ox_send_cmd(sn,SM_setMathcap);

	/* return the server id */
	STOQ(ind,*rp);
}

/*
  ox_launch_generic(host,launcher,server,use_unix,use_ssh,use_x,conn_to_serv)

  Input
	host: hostname on which servers run
	launcher: path name of the launcher
	server: path name of the server
	use_unix: use UNIX domain socket if 1
	use_ssh: use ssh if 1
	use_x: use X11 facilities if 1
	conn_to_serv: connect to server if 1
*/

void Pox_launch_generic(arg,rp)
NODE arg;
Q *rp;
{
	int use_unix,use_ssh,use_x,conn_to_serv;
	char *host,*launcher,*server;

	host = (arg&&ARG0(arg))?BDY((STRING)ARG0(arg)):0;
	launcher = BDY((STRING)ARG1(arg));
	server = BDY((STRING)ARG2(arg));
	use_unix = ARG3(arg) ? 1 : 0;
	use_ssh = ARG4(arg) ? 1 : 0;
	use_x = ARG5(arg) ? 1 : 0;
	conn_to_serv = QTOS((Q)ARG6(arg));
	if ( !host )
		use_unix = 1;
	ox_launch_generic(host,launcher,server,
		use_unix,use_ssh,use_x,conn_to_serv,rp);
}

void ox_launch_generic(host,launcher,server,
		use_unix,use_ssh,use_x,conn_to_serv,rp)
char *host,*launcher,*server;
int use_unix,use_ssh,use_x,conn_to_serv;
Q *rp;
{
	int cs,ss,cn,sn,ind,id;
	char control_port_str[BUFSIZ];
	char server_port_str[BUFSIZ];
	MATHCAP server_mathcap;

	control_port_str[0] = 0;
	server_port_str[0] = 0;
	do { 
		generate_port(use_unix,control_port_str);
		generate_port(use_unix,server_port_str);
		if ( !conn_to_serv ) {
			cs = try_bind_listen(use_unix,control_port_str);
			ss = try_bind_listen(use_unix,server_port_str);
		}
		spawn_server(host,launcher,server,
			use_unix,use_ssh,use_x,conn_to_serv,
				control_port_str,server_port_str);
		if ( conn_to_serv ) {
			cs = try_connect(use_unix,host,control_port_str);
			ss = try_connect(use_unix,host,server_port_str);
		} else {
			cs = try_accept(use_unix,cs);
			ss = try_accept(use_unix,ss);
		}
	} while ( cs < 0 || ss < 0 );

	/* client mode */
	cn = get_iofp(cs,control_port_str,0);
	sn = get_iofp(ss,server_port_str,0);

	/* register server to the server list */
	ind = register_server(use_unix,cn,sn);

	/* request remote mathcap */
	ox_send_cmd(sn,SM_mathcap);
	ox_send_cmd(sn,SM_popCMO);
	ox_flush_stream_force(sn);
	ox_recv(sn,&id,&server_mathcap);
	store_remote_mathcap(sn,server_mathcap);

	/* send my mathcap */
	create_my_mathcap("asir");
	ox_send_data(sn,my_mathcap);
	ox_send_cmd(sn,SM_setMathcap);

	/* return the server id */
	STOQ(ind,*rp);
}

int spawn_server(host,launcher,server,
	use_unix,use_ssh,use_x,conn_to_serv,
	control_port_str,server_port_str)
char *host,*launcher,*server;
int use_unix,use_ssh,use_x,conn_to_serv;
char *control_port_str,*server_port_str;
{
	char cmd[BUFSIZ];
	char localhost[BUFSIZ];
	char *dname,*conn_str,*rsh;

	dname = use_x ? (char *)getenv("DISPLAY") : 0;
	conn_str = conn_to_serv ? "1" : "0";
	rsh = use_ssh ? "ssh" : RSH;
	gethostname(localhost,BUFSIZ);
	if ( use_unix ) {
		if ( !fork() ) {
			setpgid(0,getpid());
			if ( dname )
				execlp("xterm","xterm","-name",OX_XTERM,"-display",dname,
					"-geometry","60x10","-e",launcher,".",conn_str,
					control_port_str,server_port_str,server,dname,0);
			else
				execlp(launcher,launcher,".",conn_str,
					control_port_str,server_port_str,server,"0",0);
		}
	} else if ( conn_to_serv == 2 ) {
		/* special support for java */
		if ( dname )
			sprintf(cmd,
				"%s -n %s \"(cd %s; xterm -name %s -display %s -geometry 60x10 -e java %s -host %s -control %s -data %s)>&/dev/null&\">/dev/null",
				rsh,host,launcher,OX_XTERM,dname,server,localhost,control_port_str,server_port_str);
		else
			sprintf(cmd,
				"%s -n %s \"(cd %s; java %s -host %s -control %s -data %s)>&/dev/null&\">/dev/null",
				rsh,host,launcher,server,localhost,
				control_port_str,server_port_str,server);
		fprintf(stderr,"%s\n",cmd);
		sleep(20);
/*		system(cmd); */
	} else {
		if ( dname )
			sprintf(cmd,
				"%s -n %s \"xterm -name %s -display %s -geometry 60x10 -e %s %s %s %s %s %s %s>&/dev/null&\">/dev/null",
				rsh,host,OX_XTERM,dname,launcher,localhost,conn_str,
				control_port_str,server_port_str,server,dname);
		else
			sprintf(cmd,
				"%s -n %s \"%s %s %s %s %s %s %s>&/dev/null&\">/dev/null",
				rsh,host,launcher,localhost,conn_str,
				control_port_str,server_port_str,server,"0");
		system(cmd);
	}
}

void Pox_launch(arg,rp)
NODE arg;
Obj *rp;
{
	Pox_launch_main(1,arg,rp);
}

void Pox_launch_nox(arg,rp)
NODE arg;
Obj *rp;
{
	Pox_launch_main(0,arg,rp);
}

/* 
	ox_launch() : invoke local ox_asir
	ox_launch(0,ox_xxx) : invoke local ox_xxx with asir_libdir/ox_launch
	ox_launch(remote,lib,ox_xxx) : invoke remote ox_xxx with lib/ox_launch
*/

void Pox_launch_main(with_x,arg,rp)
int with_x;
NODE arg;
Obj *rp;
{
	char *str;
	char *hostname,*servername,*dname;
	char *control;
	int use_unix;
	extern char *asir_libdir;

	if ( arg && ARG0(arg) && argc(arg) != 3 )
		error("ox_launch : argument mismatch");
	control = (char *)MALLOC(BUFSIZ);
	if ( !arg || ( !ARG0(arg) && argc(arg) == 1 ) ) {
		sprintf(control,"%s/ox_launch",asir_libdir);
		use_unix = 1;
		servername = (char *)MALLOC(BUFSIZ);
		sprintf(servername,"%s/ox_asir",asir_libdir);
	} else if ( !ARG0(arg) && argc(arg) == 2 ) {
		sprintf(control,"%s/ox_launch",asir_libdir);
		use_unix = 1;
		str = BDY((STRING)ARG1(arg));
		if ( str[0] == '/' )
			servername = str;
		else {
			servername = (char *)MALLOC(BUFSIZ);
			sprintf(servername,"%s/%s",asir_libdir,str);
		}
	} else {
		sprintf(control,"%s/ox_launch",BDY((STRING)ARG1(arg)));
		if ( !ARG0(arg) )
			use_unix = 1;
		else
			use_unix = 0;
		str = BDY((STRING)ARG2(arg));
		if ( str[0] == '/' )
			servername = str;
		else {
			servername = (char *)MALLOC(BUFSIZ);
			sprintf(servername,"%s/%s",BDY((STRING)ARG1(arg)),str);
		}
	}
	if ( arg && ARG0(arg) )
		hostname = BDY((STRING)ARG0(arg));
	else
		hostname = 0;
	ox_launch_generic(hostname,control,servername,use_unix,0,with_x,0,rp);
}

int register_server(af_unix,m,c)
int af_unix,m,c;
{
	int s,i,ci;
	struct m_c *t;

	if ( c < 0 )
		return -1;
	if ( !m_c_tab ) {
		s = BUFSIZ*sizeof(struct m_c);
		m_c_tab = (struct m_c *)MALLOC_ATOMIC(s); bzero(m_c_tab,s);
		m_c_s = BUFSIZ;
	}
#if !MPI
	for ( i = 0; i < m_c_i; i++ )
		if ( !m_c_tab[i].m && !m_c_tab[i].c )
			break;
	if ( i < m_c_i ) {
		m_c_tab[i].m = m; m_c_tab[i].c = c;
		m_c_tab[i].af_unix = af_unix;
		return i;
	}
#endif
	if ( m_c_i == m_c_s ) {
		s = (m_c_s+BUFSIZ)*sizeof(struct m_c);
		t = (struct m_c *)MALLOC_ATOMIC(s); bzero(m_c_tab,s);
		bcopy(m_c_tab,t,m_c_s*sizeof(struct m_c));
		m_c_s += BUFSIZ; m_c_tab = t;
	}
	m_c_tab[m_c_i].m = m; m_c_tab[m_c_i].c = c;
	m_c_tab[m_c_i].af_unix = af_unix;
	return m_c_i++;
}

/* iofp index => m_c_tab index */

int get_mcindex(i)
int i;
{
	int j;

	for ( j = 0; j < m_c_i; j++ )
		if ( m_c_tab[j].c == i )
			return j;
	return -1;
}

/* arg = [ind0,ind1,...]; indk = index to m_c_tab */

void Pox_select(arg,rp)
NODE arg;
LIST *rp;
{
	int fd,n,i,index,mcind;
	fd_set r,w,e;
	NODE list,t,t1;
	Q q;
	double max;
	struct timeval interval;
	struct timeval *tvp;

	list = BDY((LIST)ARG0(arg)); arg = NEXT(arg);
	if ( arg ) {
		max = ToReal((Num)BDY(arg));
		interval.tv_sec = (int)max;
		interval.tv_usec = (int)((max-(int)max)*1000000);
		tvp = &interval;
	} else
		tvp = 0;

	FD_ZERO(&r); FD_ZERO(&w); FD_ZERO(&e);
	for ( t = list; t; t = NEXT(t) ) {
		index = QTOS((Q)BDY(t));
		valid_mctab_index(index);
		fd = get_fd(m_c_tab[index].c); FD_SET(fd,&r);
	}
	n = select(FD_SETSIZE,&r,&w,&e,tvp);
	for ( i = 0, t = 0; n && i < FD_SETSIZE; i++ )
		if ( FD_ISSET(i,&r) ) {
			/* index : index to iofp array */
			index = get_index(i);
			/* mcind : index to m_c_tab array */
			mcind = get_mcindex(index);
			n--; STOQ(mcind,q); MKNODE(t1,q,t); t = t1;
		}
	MKLIST(*rp,t);
}

void Pox_flush(arg,rp)
NODE arg;
Q *rp;
{
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	ox_flush_stream_force(m_c_tab[index].c);
	*rp = ONE;
}

void Pox_push_local(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	struct oLIST dummy;
	VL vl;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c; arg = NEXT(arg);

	dummy.id = O_LIST; dummy.body = arg;
	get_vars_recursive((Obj)&dummy,&vl);

	ox_send_local_ring(s,vl);
	for ( ; arg; arg = NEXT(arg) )
		ox_send_local_data(s,BDY(arg));
	*rp = 0;
}

void Pox_push_cmo(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c; arg = NEXT(arg);
	for ( ; arg; arg = NEXT(arg) )
		ox_send_data(s,BDY(arg));
	*rp = 0;
}

void Pox_push_vl(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	ox_send_local_ring(m_c_tab[index].c,CO);
	*rp = 0;
}

void Pox_pop_local(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c;
	ox_send_cmd(s,SM_popSerializedLocalObject);
	ox_flush_stream_force(s);
	ox_get_result(s,rp);
}

void Pox_pop_cmo(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c;
	ox_send_cmd(s,SM_popCMO);
	ox_flush_stream_force(s);
	ox_get_result(s,rp);
}

void Pox_pop0_local(arg,rp)
NODE arg;
Obj *rp;
{
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	ox_send_cmd(m_c_tab[index].c,SM_popSerializedLocalObject);
	*rp = 0;
}

void Pox_pop0_cmo(arg,rp)
NODE arg;
Obj *rp;
{
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	ox_send_cmd(m_c_tab[index].c,SM_popCMO);
	*rp = 0;
}

void Pox_pop0_string(arg,rp)
NODE arg;
STRING *rp;
{
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	ox_send_cmd(m_c_tab[index].c,SM_popString);
	*rp = 0;
}

void Pox_pop_string(arg,rp)
NODE arg;
STRING *rp;
{
	int s,id;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c;
	ox_send_cmd(s,SM_popString);
	ox_flush_stream_force(s);
	ox_get_result(s,rp);
}

void Pox_get(arg,rp)
NODE arg;
Obj *rp;
{
	int index = QTOS((Q)ARG0(arg));
	int s;

	valid_mctab_index(index);
	s = m_c_tab[index].c;
	ox_flush_stream_force(s);
	ox_get_result(s,rp);
}

void Pox_pops(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	USINT n;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c;
	if ( NEXT(arg) )
		MKUSINT(n,QTOS((Q)ARG1(arg)));
	else
		MKUSINT(n,1);
	ox_send_data(s,n);
	ox_send_cmd(s,SM_pops);
	*rp = 0;
}

void Pox_execute_function(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	USINT ui;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c;
	MKUSINT(ui,QTOS((Q)ARG2(arg)));
	ox_send_data(s,ui);
	ox_send_data(s,ARG1(arg));
	ox_send_cmd(s,SM_executeFunction);
	*rp = 0;
}

void Pox_setname(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c;
	ox_send_data(s,ARG1(arg));
	ox_send_cmd(s,SM_setName);
	*rp = 0;
}

void Pox_evalname(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c;
	ox_send_data(s,ARG1(arg));
	ox_send_cmd(s,SM_evalName);
	*rp = 0;
}

void Pox_execute_string(arg,rp)
NODE arg;
Obj *rp;
{
	int s;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c;
	ox_send_data(s,ARG1(arg));
	ox_send_cmd(s,SM_executeStringByLocalParser);
	*rp = 0;
}

/* arg=[sid,fname,arg0,arg1,...,arg{n-1}] */

void Pox_rpc(arg,rp)
NODE arg;
Obj *rp;
{
	int s,i,n;
	STRING f;
	USINT ui;
	pointer *w;
	NODE t;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c; arg = NEXT(arg);
	f = (STRING)BDY(arg); arg = NEXT(arg);
	ox_send_local_ring(s,CO);
	for ( n = 0, t = arg; t; t = NEXT(t), n++ );
	w = (pointer *)ALLOCA(n*sizeof(pointer));
	for ( i = 0, t = arg; i < n; t = NEXT(t), i++ )
		w[i] = BDY(t);
	for ( i = n-1; i >= 0; i-- )
		ox_send_local_data(s,w[i]);
	MKUSINT(ui,n);
	ox_send_data(s,ui);
	ox_send_data(s,f);
	ox_send_cmd(s,SM_executeFunction);
	*rp = 0;
}

void Pox_cmo_rpc(arg,rp)
NODE arg;
Obj *rp;
{
	int s,i,n;
	STRING f;
	USINT ui;
	NODE t;
	pointer *w;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	s = m_c_tab[index].c; arg = NEXT(arg);
	f = (STRING)BDY(arg); arg = NEXT(arg);
	for ( n = 0, t = arg; t; t = NEXT(t), n++ );
	w = (pointer *)ALLOCA(n*sizeof(pointer));
	for ( i = 0, t = arg; i < n; t = NEXT(t), i++ )
		w[i] = BDY(t);
	for ( i = n-1; i >= 0; i-- )
		ox_send_data(s,w[i]);
	MKUSINT(ui,n);
	ox_send_data(s,ui);
	ox_send_data(s,f);
	ox_send_cmd(s,SM_executeFunction);
	*rp = 0;
}

void Pox_reset(arg,rp)
NODE arg;
Q *rp;
{
	USINT t;
	int s,id,c,m;
	Obj obj;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	m = m_c_tab[index].m;
	c = m_c_tab[index].c;
	if ( m >= 0 ) {
		if ( argc(arg) == 1 ) {
			ox_send_cmd(m,SM_control_reset_connection);
			ox_flush_stream_force(m);
			ox_recv(m,&id,&t);
		}
		*rp = ONE;
#if defined(VISUAL)
		Sleep(100);
		ox_send_cmd(c,SM_nop);
		ox_flush_stream_force(c);
#endif
		while ( 1 ) {
			ox_recv(c,&id,&obj);
			if ( id == OX_SYNC_BALL )
				break;
		}
		ox_send_sync(c);
	} else
		*rp = 0;
}

void Pox_sync(arg,rp)
NODE arg;
Q *rp;
{
	int c;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	c = m_c_tab[index].c;
	ox_send_sync(c);
	*rp = 0;
}

void Pox_shutdown(arg,rp)
NODE arg;
Q *rp;
{
	int s;
	int index = QTOS((Q)ARG0(arg));
	int status;

	valid_mctab_index(index);
	s = m_c_tab[index].m;
	ox_send_cmd(s,SM_shutdown);
	free_iofp(s);
#if !MPI && !defined(VISUAL)
	if ( m_c_tab[index].af_unix )
		wait(&status);
#endif
	m_c_tab[index].m = 0; m_c_tab[index].c = 0;
	m_c_tab[index].af_unix = 0;
	*rp = 0;
}

void Pox_push_cmd(arg,rp)
NODE arg;
Q *rp;
{
	unsigned int ui;
	int index = QTOS((Q)ARG0(arg));

	valid_mctab_index(index);
	ui = (unsigned int)QTOS((Q)ARG1(arg));
	ox_send_cmd(m_c_tab[index].c,ui);
	*rp = 0;
}
#endif