/* $OpenXM: OpenXM_contrib2/asir2000/io/ox_launch.c,v 1.1 1999/12/03 07:39:11 noro Exp $ */
#include "ca.h"
#include "com.h"
#include "ox.h"
#include <signal.h>
#include <setjmp.h>
#include <fcntl.h>
#if defined(VISUAL)
#include <windows.h>
#include <io.h>
#include <fcntl.h>
#include <process.h>
#else
#include <sys/file.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <pwd.h>
#endif
#if defined(SYSV)
#include <unistd.h>
#endif
#if defined(VISUAL)
HANDLE hIntr,hReset,hKill;
#endif
static void put_log(char *);
static int which_command(char *,char *);
static int search_command(char *);
static int ox_spawn(char *,int,char *);
static void launch_error(char *);
static int ox_io_init(int);
static void push_one(Obj);
static Obj pop_one();
static void do_cmd(int);
static Obj *asir_OperandStack;
static int asir_OperandStackPtr;
static char hostname[BUFSIZ];
static int sindex;
static struct sockaddr_in peer;
static int cpid;
static void put_log(str)
char *str;
{
static FILE *logfile;
if ( !logfile )
logfile = fopen("/tmp/ox_log","w");
fprintf(logfile,"%s\n",str);
fflush(logfile);
}
#if !defined(VISUAL)
static int which_command(com,file)
char *com,*file;
{
char *c,*s;
int len;
char dir[BUFSIZ],path[BUFSIZ];
for ( s = (char *)getenv("PATH"); s; ) {
c = (char *)index(s,':');
if ( c ) {
len = c-s;
strncpy(dir,s,len); s = c+1; dir[len] = 0;
} else {
strcpy(dir,s); s = 0;
}
sprintf(path,"%s/%s",dir,com);
if ( search_command(path) ) {
strcpy(file,path); return 1;
}
}
file[0] = 0; return 0;
}
static int search_command(file)
char *file;
{
struct stat buf;
if ( stat(file,&buf) || (buf.st_mode & S_IFDIR) )
return 0;
if ( access(file,X_OK) )
return 0;
else
return 1;
}
#endif
/*
argv[1] : host to connect
argv[2] : if 1, call try_bind_listen and try_accept
if 0, call try_connect
argv[3] : control_port
argv[4] : server_port
argv[5] : server
argv[6] : display or "0"
*/
void launch_main(argc,argv)
int argc;
char **argv;
{
int id;
Obj p,obj;
char *name;
char buf[BUFSIZ];
int cs,ss;
unsigned int cmd;
int use_unix,accept_client;
char *control_port_str,*server_port_str;
char *rhost,*server,*dname;
GC_init(); nglob_init();
gethostname(hostname,BUFSIZ);
rhost = argv[1];
use_unix = !strcmp(rhost,".") ? 1 : 0;
accept_client = atoi(argv[2]) ? 1 : 0;
control_port_str = argv[3];
server_port_str = argv[4];
server = argv[5];
dname = argv[6];
#if defined(VISUAL)
init_socket();
#endif
signal(SIGINT,SIG_IGN);
#if defined(SIGUSR1)
signal(SIGUSR1,SIG_IGN);
#endif
if ( accept_client ) {
cs = try_bind_listen(use_unix,control_port_str);
ss = try_bind_listen(use_unix,server_port_str);
cs = try_accept(use_unix,cs);
ss = try_accept(use_unix,ss);
} else {
cs = try_connect(use_unix,rhost,control_port_str);
ss = try_connect(use_unix,rhost,server_port_str);
}
ox_io_init(cs);
if ( cs < 0 || ss < 0 )
launch_error("cannot connect to the client");
cpid = ox_spawn(server,ss,dname);
while ( 1 ) {
ox_recv(sindex,&id,&obj);
switch ( id ) {
case OX_COMMAND:
cmd = ((USINT)obj)->body;
do_cmd(cmd);
break;
case OX_DATA:
push_one(obj);
break;
case OX_SYNC_BALL:
break;
default:
break;
}
}
}
#if defined(VISUAL)
static void do_cmd(cmd)
int cmd;
{
USINT t;
int id,cindex;
int bport,sport;
int bs,bs0;
STRING prog,dname;
switch ( cmd ) {
case SM_shutdown:
SetEvent(hKill);
exit(0); break;
case SM_control_intr:
SetEvent(hIntr);
break;
case SM_control_kill:
SetEvent(hKill);
break;
case SM_control_reset_connection:
MKUSINT(t,0);
ox_send_data(sindex,t);
SetEvent(hReset);
break;
default:
break;
}
}
#else
static void do_cmd(cmd)
int cmd;
{
USINT t;
int id,cindex;
int bport,sport;
int bs,bs0;
int status;
STRING prog,dname;
switch ( cmd ) {
case SM_shutdown:
kill(cpid,SIGKILL);
exit(0); break;
case SM_control_intr:
kill(cpid,SIGINT);
break;
case SM_control_kill:
kill(cpid,SIGKILL);
break;
case SM_control_reset_connection:
MKUSINT(t,0);
ox_send_data(sindex,t);
kill(cpid,SIGUSR1);
break;
default:
break;
}
}
#endif
static int ox_spawn(prog,bs,dname)
char *prog;
int bs;
char *dname;
{
#if defined(VISUAL)
char *av[BUFSIZ];
char sock_id[BUFSIZ],ox_intr[BUFSIZ],ox_reset[BUFSIZ],ox_kill[BUFSIZ];
char AsirExe[BUFSIZ];
HANDLE hProc;
STRING rootdir;
int mypid;
mypid = GetCurrentProcessId();
sprintf(ox_intr,"ox_intr_%d",mypid);
sprintf(ox_reset,"ox_reset_%d",mypid);
sprintf(ox_kill,"ox_kill_%d",mypid);
hIntr = CreateEvent(NULL,TRUE,FALSE,ox_intr);
hReset = CreateEvent(NULL,TRUE,FALSE,ox_reset);
hKill = CreateEvent(NULL,TRUE,FALSE,ox_kill);
sprintf(sock_id,"%d",bs);
av[0] = prog;
av[1] = sock_id;
av[2] = ox_intr;
av[3] = ox_reset;
av[4] = ox_kill;
av[5] = NULL;
Pget_rootdir(&rootdir);
sprintf(AsirExe,"%s\\bin\\engine.exe",BDY(rootdir));
hProc = _spawnv(_P_NOWAIT,AsirExe,av);
return (int)hProc;
#else /* VISUAL */
int b,s,i;
struct hostent *hp;
int pid;
char wname[BUFSIZ];
char buf[BUFSIZ];
pid = fork();
if ( pid )
return pid;
else {
setpgid(0,getpid());
if ( dup2(bs,3) != 3 )
exit(1);
if ( dup2(bs,4) != 4 )
exit(1);
{
#if defined(linux) || defined(__NeXT__) || defined(ultrix)
#include <sys/param.h>
close(0);
for ( i = 5; i < NOFILE; i++ )
close(i);
#else
#include <sys/resource.h>
struct rlimit rl;
getrlimit(RLIMIT_NOFILE,&rl);
close(0);
for ( i = 5; i < rl.rlim_cur; i++ )
close(i);
#endif
}
if ( strcmp(dname,"0") )
execl(prog,prog,"-display",dname,0);
else {
FILE *null;
null = fopen("/dev/null","wb");
dup2(fileno(null),1);
dup2(fileno(null),2);
putenv("DISPLAY=");
execl(prog,prog,0);
}
}
#endif
}
static void launch_error(s)
char *s;
{
exit(0);
}
static int ox_io_init(sock)
int sock;
{
endian_init();
/* server mode */
sindex = get_iofp(sock,0,1);
asir_OperandStack = (Obj *)CALLOC(BUFSIZ,sizeof(Obj));
asir_OperandStackPtr = -1;
}
static void push_one(obj)
Obj obj;
{
if ( !obj || OID(obj) != O_VOID )
asir_OperandStack[++asir_OperandStackPtr] = obj;
}
static Obj pop_one() {
if ( asir_OperandStackPtr >= 0 ) {
return asir_OperandStack[asir_OperandStackPtr--];
}
}