Data Structures | Functions
ssiLink.h File Reference
#include <Singular/links/silink.h>

Go to the source code of this file.

Data Structures

struct  ssiInfo
 

Functions

BOOLEAN ssiOpen (si_link l, short flag, leftv u)
 
BOOLEAN ssiWrite (si_link l, leftv v)
 
leftv ssiRead1 (si_link l)
 
leftv ssiRead2 (si_link l, leftv key)
 
BOOLEAN ssiClose (si_link l)
 
const char * slStatusSsi (si_link l, const char *request)
 
si_link_extension slInitSsiExtension (si_link_extension s)
 
si_link ssiCommandLink ()
 
void sig_chld_hdl (int sig)
 additional default signal handler More...
 

Data Structure Documentation

◆ ssiInfo

struct ssiInfo

Definition at line 13 of file ssiLink.h.

Data Fields
s_buff f_read
FILE * f_write
int fd_read
int fd_write
char level
pid_t pid
char quit_sent
ring r
char send_quit_at_exit

Function Documentation

◆ sig_chld_hdl()

void sig_chld_hdl ( int  )

additional default signal handler

some newer Linux version cannot have SIG_IGN for SIGCHLD, so use this nice routine here: SuSe 9.x reports -1 always Redhat 9.x/FC x reports sometimes -1 see also: hpux_system also needed by getrusage (timer etc.)

Parameters
[in]sig

Definition at line 1957 of file ssiLink.cc.

1958 {
1959  pid_t kidpid;
1960  int status;
1961 
1962  loop
1963  {
1964  kidpid = si_waitpid(-1, &status, WNOHANG);
1965  if (kidpid==-1)
1966  {
1967  /* continue on interruption (EINTR): */
1968  if (errno == EINTR) continue;
1969  /* break on anything else (EINVAL or ECHILD according to manpage): */
1970  break;
1971  }
1972  else if (kidpid==0) break; /* no more children to process, so break */
1973 
1974  //printf("Child %ld terminated\n", kidpid);
1976  while((hh!=NULL)&&(ssiToBeClosed_inactive))
1977  {
1978  if((hh->l!=NULL) && (hh->l->m->Open==ssiOpen))
1979  {
1980  ssiInfo *d = (ssiInfo *)hh->l->data;
1981  if(d->pid==kidpid)
1982  {
1984  {
1986  slClose(hh->l);
1988  break;
1989  }
1990  else break;
1991  }
1992  else hh=(link_list)hh->next;
1993  }
1994  else hh=(link_list)hh->next;
1995  }
1996  }
1997 }
loop
Definition: myNF.cc:98
#define FALSE
Definition: auxiliary.h:94
#define TRUE
Definition: auxiliary.h:98
#define NULL
Definition: omList.c:10
int * status
Definition: si_signals.h:51

◆ slInitSsiExtension()

si_link_extension slInitSsiExtension ( si_link_extension  s)

Definition at line 1570 of file ssiLink.cc.

1571 {
1572  s->Open=ssiOpen;
1573  s->Close=ssiClose;
1574  s->Kill=ssiClose;
1575  s->Read=ssiRead1;
1576  s->Read2=(slRead2Proc)NULL;
1577  s->Write=ssiWrite;
1578  s->Dump=ssiDump;
1579  s->GetDump=ssiGetDump;
1580 
1581  s->Status=slStatusSsi;
1582  s->SetRing=ssiSetRing;
1583  s->type="ssi";
1584  return s;
1585 }
const CanonicalForm int s
Definition: facAbsFact.cc:55
#define NULL
Definition: omList.c:10

◆ slStatusSsi()

const char* slStatusSsi ( si_link  l,
const char *  request 
)

Definition at line 1587 of file ssiLink.cc.

1588 {
1589  ssiInfo *d=(ssiInfo*)l->data;
1590  if (d==NULL) return "not open";
1591  if (((strcmp(l->mode,"fork")==0)
1592  ||(strcmp(l->mode,"tcp")==0)
1593  ||(strcmp(l->mode,"connect")==0))
1594  && (strcmp(request, "read") == 0))
1595  {
1596  fd_set mask;
1597  struct timeval wt;
1598  if (s_isready(d->f_read)) return "ready";
1599  loop
1600  {
1601  /* Don't block. Return socket status immediately. */
1602  wt.tv_sec = 0;
1603  wt.tv_usec = 0;
1604 
1605  FD_ZERO(&mask);
1606  FD_SET(d->fd_read, &mask);
1607  //Print("test fd %d\n",d->fd_read);
1608  /* check with select: chars waiting: no -> not ready */
1609  switch (si_select(d->fd_read+1, &mask, NULL, NULL, &wt))
1610  {
1611  case 0: /* not ready */ return "not ready";
1612  case -1: /*error*/ return "error";
1613  case 1: /*ready ? */ break;
1614  }
1615  /* yes: read 1 char*/
1616  /* if \n, check again with select else ungetc(c), ready*/
1617  int c=s_getc(d->f_read);
1618  //Print("try c=%d\n",c);
1619  if (c== -1) return "eof"; /* eof or error */
1620  else if (isdigit(c))
1621  { s_ungetc(c,d->f_read); return "ready"; }
1622  else if (c>' ')
1623  {
1624  Werror("unknown char in ssiLink(%d)",c);
1625  return "error";
1626  }
1627  /* else: next char */
1628  }
1629  }
1630  else if (strcmp(request, "read") == 0)
1631  {
1632  if (SI_LINK_R_OPEN_P(l) && (!s_iseof(d->f_read)) && (s_isready(d->f_read))) return "ready";
1633  else return "not ready";
1634  }
1635  else if (strcmp(request, "write") == 0)
1636  {
1637  if (SI_LINK_W_OPEN_P(l)) return "ready";
1638  else return "not ready";
1639  }
1640  else return "unknown status request";
1641 }
loop
Definition: myNF.cc:98
if(0 > strat->sl)
Definition: myNF.cc:73
int s_getc(s_buff F)
Definition: s_buff.cc:56
void s_ungetc(int c, s_buff F)
Definition: s_buff.cc:97
int s_iseof(s_buff F)
Definition: s_buff.cc:250
#define NULL
Definition: omList.c:10
int s_isready(s_buff F)
Definition: s_buff.cc:83
void Werror(const char *fmt,...)
Definition: reporter.cc:189
int l
Definition: cfEzgcd.cc:94

◆ ssiClose()

BOOLEAN ssiClose ( si_link  l)

Definition at line 1176 of file ssiLink.cc.

1177 {
1178  if (l!=NULL)
1179  {
1181  ssiInfo *d = (ssiInfo *)l->data;
1182  if (d!=NULL)
1183  {
1184  // send quit signal
1185  if ((d->send_quit_at_exit)
1186  && (d->quit_sent==0))
1187  {
1188  fputs("99\n",d->f_write);
1189  fflush(d->f_write);
1190  }
1191  // clean ring
1192  if (d->r!=NULL) rKill(d->r);
1193  // did the child to stop ?
1194  si_waitpid(d->pid,NULL,WNOHANG);
1195  if ((d->pid!=0)
1196  && (kill(d->pid,0)==0)) // child is still running
1197  {
1198  struct timespec t;
1199  t.tv_sec=0;
1200  t.tv_nsec=100000000; // <=100 ms
1201  struct timespec rem;
1202  int r;
1203  loop
1204  {
1205  // wait till signal or time rem:
1206  r = nanosleep(&t, &rem);
1207  t = rem;
1208  // child finished:
1209  if (si_waitpid(d->pid,NULL,WNOHANG) != 0) break;
1210  // other signal, waited s>= 100 ms:
1211  if ((r==0) || (errno != EINTR)) break;
1212  }
1213  if (kill(d->pid,0) == 0) // pid still exists
1214  {
1215  kill(d->pid,15);
1216  t.tv_sec=5; // <=5s
1217  t.tv_nsec=0;
1218  loop
1219  {
1220  // wait till signal or time rem:
1221  r = nanosleep(&t, &rem);
1222  t = rem;
1223  // child finished:
1224  if (si_waitpid(d->pid,NULL,WNOHANG) != 0) break;
1225  // other signal, waited s>= 5 s:
1226  if ((r==0) || (errno != EINTR)) break;
1227  }
1228  if (kill(d->pid,0) == 0)
1229  {
1230  kill(d->pid,9); // just to be sure
1231  si_waitpid(d->pid,NULL,0);
1232  }
1233  }
1234  }
1235  if (d->f_read!=NULL) { s_close(d->f_read);d->f_read=NULL;}
1236  if (d->f_write!=NULL) { fclose(d->f_write); d->f_write=NULL; }
1237  if ((strcmp(l->mode,"tcp")==0)
1238  || (strcmp(l->mode,"fork")==0))
1239  {
1241  if (hh!=NULL)
1242  {
1243  if (hh->l==l)
1244  {
1246  omFreeSize(hh,sizeof(link_struct));
1247  }
1248  else while(hh->next!=NULL)
1249  {
1250  link_list hhh=(link_list)hh->next;
1251  if (hhh->l==l)
1252  {
1253  hh->next=hhh->next;
1254  omFreeSize(hhh,sizeof(link_struct));
1255  break;
1256  }
1257  else
1258  hh=(link_list)hh->next;
1259  }
1260  }
1261  }
1262  omFreeSize((ADDRESS)d,(sizeof *d));
1263  }
1264  l->data=NULL;
1265  }
1266  return FALSE;
1267 }
void rem(unsigned long *a, unsigned long *q, unsigned long p, int &dega, int degq)
Definition: minpoly.cc:574
loop
Definition: myNF.cc:98
if(0 > strat->sl)
Definition: myNF.cc:73
#define FALSE
Definition: auxiliary.h:94
#define omFreeSize(addr, size)
Definition: omAllocDecl.h:260
void * ADDRESS
Definition: auxiliary.h:115
int s_close(s_buff &F)
Definition: s_buff.cc:43
const ring r
Definition: syzextra.cc:208
void rKill(ring r)
Definition: ipshell.cc:6057
#define NULL
Definition: omList.c:10
int l
Definition: cfEzgcd.cc:94

◆ ssiCommandLink()

si_link ssiCommandLink ( )

Definition at line 1886 of file ssiLink.cc.

1887 {
1888  if (ssiReserved_P==0)
1889  {
1890  WerrorS("ERROR no reverved port requested");
1891  return NULL;
1892  }
1893  struct sockaddr_in cli_addr;
1894  int clilen = sizeof(cli_addr);
1895  int newsockfd = si_accept(ssiReserved_sockfd, (struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1896  if(newsockfd < 0)
1897  {
1898  Werror("ERROR on accept (errno=%d)",errno);
1899  return NULL;
1900  }
1902  si_link_extension s = si_link_root;
1903  si_link_extension prev = s;
1904  while (strcmp(s->type, "ssi") != 0)
1905  {
1906  if (s->next == NULL)
1907  {
1908  prev = s;
1909  s = NULL;
1910  break;
1911  }
1912  else
1913  {
1914  s = s->next;
1915  }
1916  }
1917  if (s != NULL)
1918  l->m = s;
1919  else
1920  {
1921  si_link_extension ns = (si_link_extension)omAlloc0Bin(s_si_link_extension_bin);
1922  prev->next=slInitSsiExtension(ns);
1923  l->m = prev->next;
1924  }
1925  l->name=omStrDup("");
1926  l->mode=omStrDup("tcp");
1927  l->ref=1;
1928  ssiInfo *d=(ssiInfo*)omAlloc0(sizeof(ssiInfo));
1929  l->data=d;
1930  d->fd_read = newsockfd;
1931  d->fd_write = newsockfd;
1932  d->f_read = s_open(newsockfd);
1933  d->f_write = fdopen(newsockfd, "w");
1936  if (ssiReserved_Clients<=0)
1937  {
1938  ssiReserved_P=0;
1939  si_close(ssiReserved_sockfd);
1940  }
1941  return l;
1942 }
const CanonicalForm int s
Definition: facAbsFact.cc:55
void WerrorS(const char *s)
Definition: feFopen.cc:24
#define omAlloc0Bin(bin)
Definition: omAllocDecl.h:206
#define NULL
Definition: omList.c:10
void Werror(const char *fmt,...)
Definition: reporter.cc:189
#define omAlloc0(size)
Definition: omAllocDecl.h:211
int l
Definition: cfEzgcd.cc:94
s_buff s_open(int fd)
Definition: s_buff.cc:29
#define omStrDup(s)
Definition: omAllocDecl.h:263

◆ ssiOpen()

BOOLEAN ssiOpen ( si_link  l,
short  flag,
leftv  u 
)

Definition at line 791 of file ssiLink.cc.

792 {
793  if (l!=NULL)
794  {
795  const char *mode;
796  ssiInfo *d=(ssiInfo*)omAlloc0(sizeof(ssiInfo));
797  if (flag & SI_LINK_OPEN)
798  {
799  if (l->mode[0] != '\0' && (strcmp(l->mode, "r") == 0))
800  flag = SI_LINK_READ;
801  else flag = SI_LINK_WRITE;
802  }
803 
804  if (flag == SI_LINK_READ) mode = "r";
805  else if (strcmp(l->mode, "w") == 0) mode = "w";
806  else if (strcmp(l->mode, "fork") == 0) mode = "fork";
807  else if (strcmp(l->mode, "tcp") == 0) mode = "tcp";
808  else if (strcmp(l->mode, "connect") == 0) mode = "connect";
809  else mode = "a";
810 
811 
812  SI_LINK_SET_OPEN_P(l, flag);
813  if(l->data!=NULL) omFreeSize(l->data,sizeof(ssiInfo));
814  l->data=d;
815  omFree(l->mode);
816  l->mode = omStrDup(mode);
817 
818  if (l->name[0] == '\0')
819  {
820  if (strcmp(mode,"fork")==0)
821  {
823  n->u=u;
824  n->l=l;
825  n->next=(void *)ssiToBeClosed;
826  ssiToBeClosed=n;
827 
828  int pc[2];
829  int cp[2];
830  pipe(pc);
831  pipe(cp);
832  pid_t pid = fork();
833  if (pid == -1 && errno == EAGAIN) // RLIMIT_NPROC too low?
834  {
836  pid = fork();
837  }
838  if (pid == -1)
839  {
840  WerrorS("could not fork");
841  }
842  if (pid==0) /*fork: child*/
843  {
844  /* block SIGINT */
845  sigset_t sigint;
846  sigemptyset(&sigint);
847  sigaddset(&sigint, SIGINT);
848  sigprocmask(SIG_BLOCK, &sigint, NULL);
849 
851  /* we know: l is the first entry in ssiToBeClosed-list */
852  while(hh!=NULL)
853  {
854  SI_LINK_SET_CLOSE_P(hh->l);
855  ssiInfo *dd=(ssiInfo*)hh->l->data;
856  s_close(dd->f_read);
857  fclose(dd->f_write);
858  if (dd->r!=NULL) rKill(dd->r);
859  omFreeSize((ADDRESS)dd,(sizeof *dd));
860  hh->l->data=NULL;
861  link_list nn=(link_list)hh->next;
862  omFree(hh);
863  hh=nn;
864  }
866 #ifdef HAVE_SIMPLEIPC
867  memset(sem_acquired, 0, SIPC_MAX_SEMAPHORES*sizeof(sem_acquired[0]));
868 #endif // HAVE_SIMPLEIPC
869  si_close(pc[1]); si_close(cp[0]);
870  d->f_write=fdopen(cp[1],"w");
871  d->f_read=s_open(pc[0]);
872  d->fd_read=pc[0];
873  d->fd_write=cp[1];
874  //d->r=currRing;
875  //if (d->r!=NULL) d->r->ref++;
876  l->data=d;
877  omFree(l->mode);
878  l->mode = omStrDup(mode);
881  //myynest=0;
883  if ((u!=NULL)&&(u->rtyp==IDHDL))
884  {
885  idhdl h=(idhdl)u->data;
886  h->lev=0;
887  }
888  loop
889  {
890  if (!SI_LINK_OPEN_P(l)) m2_end(0);
891  if(d->f_read->is_eof) m2_end(0);
892  leftv h=ssiRead1(l); /*contains an exit.... */
893  if (feErrors != NULL && *feErrors != '\0')
894  {
895  // handle errors:
896  PrintS(feErrors); /* currently quite simple */
897  *feErrors = '\0';
898  }
899  ssiWrite(l,h);
900  h->CleanUp();
901  omFreeBin(h, sleftv_bin);
902  }
903  /* never reached*/
904  }
905  else if (pid>0) /*fork: parent*/
906  {
907  d->pid=pid;
908  si_close(pc[0]); si_close(cp[1]);
909  d->f_write=fdopen(pc[1],"w");
910  d->f_read=s_open(cp[0]);
911  d->fd_read=cp[0];
912  d->fd_write=pc[1];
914  d->send_quit_at_exit=1;
915  //d->r=currRing;
916  //if (d->r!=NULL) d->r->ref++;
917  }
918  else
919  {
920  Werror("fork failed (%d)",errno);
921  l->data=NULL;
922  omFree(d);
923  return TRUE;
924  }
925  }
926  // ---------------------------------------------------------------------
927  else if (strcmp(mode,"tcp")==0)
928  {
929  int sockfd, newsockfd, portno, clilen;
930  struct sockaddr_in serv_addr, cli_addr;
931  sockfd = socket(AF_INET, SOCK_STREAM, 0);
932  if(sockfd < 0)
933  {
934  WerrorS("ERROR opening socket");
935  l->data=NULL;
936  omFree(d);
937  return TRUE;
938  }
939  memset((char *) &serv_addr,0, sizeof(serv_addr));
940  portno = 1025;
941  serv_addr.sin_family = AF_INET;
942  serv_addr.sin_addr.s_addr = INADDR_ANY;
943  do
944  {
945  portno++;
946  serv_addr.sin_port = htons(portno);
947  if(portno > 50000)
948  {
949  WerrorS("ERROR on binding (no free port available?)");
950  l->data=NULL;
951  omFree(d);
952  return TRUE;
953  }
954  }
955  while(bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0);
956  Print("waiting on port %d\n", portno);mflush();
957  listen(sockfd,1);
958  newsockfd = si_accept(sockfd, (struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
959  if(newsockfd < 0)
960  {
961  WerrorS("ERROR on accept");
962  l->data=NULL;
963  omFree(d);
964  return TRUE;
965  }
966  PrintS("client accepted\n");
967  d->fd_read = newsockfd;
968  d->fd_write = newsockfd;
969  d->f_read = s_open(newsockfd);
970  d->f_write = fdopen(newsockfd, "w");
972  si_close(sockfd);
973  }
974  // no ssi-Link on stdin or stdout
975  else
976  {
977  Werror("invalid mode >>%s<< for ssi",mode);
978  l->data=NULL;
979  omFree(d);
980  return TRUE;
981  }
982  }
983  // =========================================================================
984  else /*l->name=NULL*/
985  {
986  // tcp mode
987  if(strcmp(mode,"tcp")==0)
988  {
989  int sockfd, newsockfd, portno, clilen;
990  struct sockaddr_in serv_addr, cli_addr;
991  sockfd = socket(AF_INET, SOCK_STREAM, 0);
992  if(sockfd < 0)
993  {
994  WerrorS("ERROR opening socket");
995  l->data=NULL;
996  omFree(d);
997  return TRUE;
998  }
999  memset((char *) &serv_addr,0, sizeof(serv_addr));
1000  portno = 1025;
1001  serv_addr.sin_family = AF_INET;
1002  serv_addr.sin_addr.s_addr = INADDR_ANY;
1003  do
1004  {
1005  portno++;
1006  serv_addr.sin_port = htons(portno);
1007  if(portno > 50000)
1008  {
1009  WerrorS("ERROR on binding (no free port available?)");
1010  l->data=NULL;
1011  return TRUE;
1012  }
1013  }
1014  while(bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0);
1015  //Print("waiting on port %d\n", portno);mflush();
1016  listen(sockfd,1);
1017  char* cli_host = (char*)omAlloc(256);
1018  char* path = (char*)omAlloc(1024);
1019  int r = si_sscanf(l->name,"%255[^:]:%s",cli_host,path);
1020  if(r == 0)
1021  {
1022  WerrorS("ERROR: no host specified");
1023  l->data=NULL;
1024  omFree(d);
1025  omFree(path);
1026  omFree(cli_host);
1027  return TRUE;
1028  }
1029  else if(r == 1)
1030  {
1031  WarnS("program not specified, using /usr/local/bin/Singular");
1032  Warn("in line >>%s<<",my_yylinebuf);
1033  strcpy(path,"/usr/local/bin/Singular");
1034  }
1035  char* ssh_command = (char*)omAlloc(256);
1036  char* ser_host = (char*)omAlloc(64);
1037  gethostname(ser_host,64);
1038  sprintf(ssh_command,"ssh %s %s -q --batch --link=ssi --MPhost=%s --MPport=%d &",cli_host,path,ser_host,portno);
1039  //Print("client on %s started:%s\n",cli_host,path);
1040  omFree(path);
1041  omFree(cli_host);
1042  if (TEST_OPT_PROT) { Print("running >>%s<<\n",ssh_command); }
1043  system(ssh_command);
1044  omFree(ssh_command);
1045  omFree(ser_host);
1046  clilen = sizeof(cli_addr);
1047  newsockfd = si_accept(sockfd, (struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1048  if(newsockfd < 0)
1049  {
1050  WerrorS("ERROR on accept");
1051  l->data=NULL;
1052  omFree(d);
1053  return TRUE;
1054  }
1055  //PrintS("client accepted\n");
1056  d->fd_read = newsockfd;
1057  d->fd_write = newsockfd;
1058  d->f_read = s_open(newsockfd);
1059  d->f_write = fdopen(newsockfd, "w");
1060  si_close(sockfd);
1062  d->send_quit_at_exit=1;
1063  link_list newlink=(link_list)omAlloc(sizeof(link_struct));
1064  newlink->u=u;
1065  newlink->l=l;
1066  newlink->next=(void *)ssiToBeClosed;
1067  ssiToBeClosed=newlink;
1068  fprintf(d->f_write,"98 %d %d %u %u\n",SSI_VERSION,MAX_TOK,si_opt_1,si_opt_2);
1069  }
1070  // ----------------------------------------------------------------------
1071  else if(strcmp(mode,"connect")==0)
1072  {
1073  char* host = (char*)omAlloc(256);
1074  int sockfd, portno;
1075  struct sockaddr_in serv_addr;
1076  struct hostent *server;
1077 
1078  si_sscanf(l->name,"%255[^:]:%d",host,&portno);
1079  //Print("connect to host %s, port %d\n",host,portno);mflush();
1080  if (portno!=0)
1081  {
1082  sockfd = socket(AF_INET, SOCK_STREAM, 0);
1083  if (sockfd < 0) { WerrorS("ERROR opening socket"); return TRUE; }
1084  server = gethostbyname(host);
1085  if (server == NULL) { WerrorS("ERROR, no such host"); return TRUE; }
1086  memset((char *) &serv_addr, 0, sizeof(serv_addr));
1087  serv_addr.sin_family = AF_INET;
1088  memcpy((char *)&serv_addr.sin_addr.s_addr,
1089  (char *)server->h_addr,
1090  server->h_length);
1091  serv_addr.sin_port = htons(portno);
1092  if (si_connect(sockfd,(sockaddr*)&serv_addr,sizeof(serv_addr)) < 0)
1093  { Werror("ERROR connecting(errno=%d)",errno); return TRUE; }
1094  //PrintS("connected\n");mflush();
1095  d->f_read=s_open(sockfd);
1096  d->fd_read=sockfd;
1097  d->f_write=fdopen(sockfd,"w");
1098  d->fd_write=sockfd;
1100  omFree(host);
1101  }
1102  else
1103  {
1104  l->data=NULL;
1105  omFree(d);
1106  return TRUE;
1107  }
1108  }
1109  // ======================================================================
1110  else
1111  {
1112  // normal link to a file
1113  FILE *outfile;
1114  char *filename=l->name;
1115 
1116  if(filename[0]=='>')
1117  {
1118  if (filename[1]=='>')
1119  {
1120  filename+=2;
1121  mode = "a";
1122  }
1123  else
1124  {
1125  filename++;
1126  mode="w";
1127  }
1128  }
1129  outfile=myfopen(filename,mode);
1130  if (outfile!=NULL)
1131  {
1132  if (strcmp(l->mode,"r")==0)
1133  {
1134  fclose(outfile);
1135  d->f_read=s_open_by_name(filename);
1136  }
1137  else
1138  {
1139  d->f_write = outfile;
1140  fprintf(d->f_write,"98 %d %d %u %u\n",SSI_VERSION,MAX_TOK,si_opt_1,si_opt_2);
1141  }
1142  }
1143  else
1144  {
1145  omFree(d);
1146  l->data=NULL;
1147  return TRUE;
1148  }
1149  }
1150  }
1151  }
1152 
1153  return FALSE;
1154 }
unsigned si_opt_1
Definition: options.c:5
char *(* fe_fgets_stdin)(const char *pr, char *s, int size)
Definition: feread.cc:34
Class used for (list of) interpreter objects.
Definition: subexpr.h:82
#define Print
Definition: emacs.cc:83
#define TEST_OPT_PROT
Definition: options.h:98
loop
Definition: myNF.cc:98
#define FALSE
Definition: auxiliary.h:94
Definition: tok.h:213
#define omFreeSize(addr, size)
Definition: omAllocDecl.h:260
char * fe_fgets_dummy(const char *, char *, int)
Definition: feread.cc:451
void m2_end(int i)
Definition: misc_ip.cc:1074
#define TRUE
Definition: auxiliary.h:98
void * ADDRESS
Definition: auxiliary.h:115
void WerrorS(const char *s)
Definition: feFopen.cc:24
int s_close(s_buff &F)
Definition: s_buff.cc:43
#define WarnS
Definition: emacs.cc:81
#define omAlloc(size)
Definition: omAllocDecl.h:210
Definition: idrec.h:34
#define IDHDL
Definition: tok.h:31
void * data
Definition: subexpr.h:88
#define mflush()
Definition: reporter.h:57
char * feErrors
Definition: reporter.cc:47
char my_yylinebuf[80]
Definition: febase.cc:48
const ring r
Definition: syzextra.cc:208
BOOLEAN singular_in_batchmode
Definition: cntrlc.cc:71
void rKill(ring r)
Definition: ipshell.cc:6057
#define omFree(addr)
Definition: omAllocDecl.h:261
FILE * myfopen(const char *path, const char *mode)
Definition: feFopen.cc:167
void system(sys)
int raise_rlimit_nproc()
Definition: rlimit.c:18
idrec * idhdl
Definition: ring.h:18
omBin sleftv_bin
Definition: subexpr.cc:50
void PrintS(const char *s)
Definition: reporter.cc:284
#define NULL
Definition: omList.c:10
short lev
Definition: idrec.h:45
int rtyp
Definition: subexpr.h:91
#define SIPC_MAX_SEMAPHORES
Definition: simpleipc.h:10
void CleanUp(ring r=currRing)
Definition: subexpr.cc:332
#define omFreeBin(addr, bin)
Definition: omAllocDecl.h:259
int sem_acquired[SIPC_MAX_SEMAPHORES]
Definition: semaphore.c:25
s_buff s_open_by_name(const char *n)
Definition: s_buff.cc:37
unsigned si_opt_2
Definition: options.c:6
static Poly * h
Definition: janet.cc:978
void Werror(const char *fmt,...)
Definition: reporter.cc:189
#define omAlloc0(size)
Definition: omAllocDecl.h:211
int l
Definition: cfEzgcd.cc:94
s_buff s_open(int fd)
Definition: s_buff.cc:29
#define Warn
Definition: emacs.cc:80
#define omStrDup(s)
Definition: omAllocDecl.h:263

◆ ssiRead1()

leftv ssiRead1 ( si_link  l)

Definition at line 1270 of file ssiLink.cc.

1271 {
1272  ssiInfo *d = (ssiInfo *)l->data;
1274  int t=0;
1275  t=s_readint(d->f_read);
1276  //Print("got type %d\n",t);
1277  switch(t)
1278  {
1279  case 1:res->rtyp=INT_CMD;
1280  res->data=(char *)(long)ssiReadInt(d->f_read);
1281  break;
1282  case 2:res->rtyp=STRING_CMD;
1283  res->data=(char *)ssiReadString(d);
1284  break;
1285  case 3:res->rtyp=NUMBER_CMD;
1286  res->data=(char *)ssiReadNumber(d);
1287  break;
1288  case 4:res->rtyp=BIGINT_CMD;
1289  res->data=(char *)ssiReadBigInt(d);
1290  break;
1291  case 15:
1292  case 5:{
1293  d->r=ssiReadRing(d);
1294  if (d->r==NULL) return NULL;
1295  res->data=(char*)d->r;
1296  d->r->ref++;
1297  res->rtyp=RING_CMD;
1298  if (t==15) // setring
1299  {
1300  if(ssiSetCurrRing(d->r)) { d->r=currRing; d->r->ref++; }
1302  return ssiRead1(l);
1303  }
1304  }
1305  break;
1306  case 6:res->rtyp=POLY_CMD;
1307  if (d->r==NULL) goto no_ring;
1308  res->data=(char*)ssiReadPoly(d);
1309  break;
1310  case 7:res->rtyp=IDEAL_CMD;
1311  if (d->r==NULL) goto no_ring;
1312  res->data=(char*)ssiReadIdeal(d);
1313  break;
1314  case 8:res->rtyp=MATRIX_CMD;
1315  if (d->r==NULL) goto no_ring;
1316  res->data=(char*)ssiReadMatrix(d);
1317  break;
1318  case 9:res->rtyp=VECTOR_CMD;
1319  if (d->r==NULL) goto no_ring;
1320  res->data=(char*)ssiReadPoly(d);
1321  break;
1322  case 10:res->rtyp=MODUL_CMD;
1323  if (d->r==NULL) goto no_ring;
1324  {
1325  int rk=s_readint(d->f_read);
1326  ideal M=ssiReadIdeal(d);
1327  M->rank=rk;
1328  res->data=(char*)M;
1329  }
1330  break;
1331  case 11:
1332  {
1333  res->rtyp=COMMAND;
1334  res->data=ssiReadCommand(l);
1335  int nok=res->Eval();
1336  if (nok) WerrorS("error in eval");
1337  break;
1338  }
1339  case 12: /*DEF_CMD*/
1340  {
1341  res->rtyp=0;
1342  res->name=(char *)ssiReadString(d);
1343  int nok=res->Eval();
1344  if (nok) WerrorS("error in name lookup");
1345  break;
1346  }
1347  case 13: res->rtyp=PROC_CMD;
1348  res->data=ssiReadProc(d);
1349  break;
1350  case 14: res->rtyp=LIST_CMD;
1351  res->data=ssiReadList(l);
1352  break;
1353  case 16: res->rtyp=NONE; res->data=NULL;
1354  break;
1355  case 17: res->rtyp=INTVEC_CMD;
1356  res->data=ssiReadIntvec(d);
1357  break;
1358  case 18: res->rtyp=INTMAT_CMD;
1359  res->data=ssiReadIntmat(d);
1360  break;
1361  case 19: res->rtyp=BIGINTMAT_CMD;
1362  res->data=ssiReadBigintmat(d);
1363  break;
1364  case 20: ssiReadBlackbox(res,l);
1365  break;
1366  case 21: ssiReadAttrib(res,l);
1367  break;
1368  // ------------
1369  case 98: // version
1370  {
1371  int n98_v,n98_m;
1372  BITSET n98_o1,n98_o2;
1373  n98_v=s_readint(d->f_read);
1374  n98_m=s_readint(d->f_read);
1375  n98_o1=s_readint(d->f_read);
1376  n98_o2=s_readint(d->f_read);
1377  if ((n98_v!=SSI_VERSION) ||(n98_m!=MAX_TOK))
1378  {
1379  Print("incompatible versions of ssi: %d/%d vs %d/%d\n",
1380  SSI_VERSION,MAX_TOK,n98_v,n98_m);
1381  }
1382  #ifndef SING_NDEBUG
1383  if (TEST_OPT_DEBUG)
1384  Print("// opening ssi-%d, MAX_TOK=%d\n",n98_v,n98_m);
1385  #endif
1386  si_opt_1=n98_o1;
1387  si_opt_2=n98_o2;
1389  return ssiRead1(l);
1390  }
1391  case 99: omFreeBin(res,sleftv_bin); ssiClose(l); m2_end(0);
1392  case 0: if (s_iseof(d->f_read))
1393  {
1394  ssiClose(l);
1395  }
1396  res->rtyp=DEF_CMD;
1397  break;
1398  default: Werror("not implemented (t:%d)",t);
1400  res=NULL;
1401  break;
1402  }
1403  // if currRing is required for the result, but lost
1404  // define "ssiRing%d" as currRing:
1405  if ((d->r!=NULL)
1406  && (currRing!=d->r)
1407  && (res->RingDependend()))
1408  {
1409  if(ssiSetCurrRing(d->r)) { d->r=currRing; d->r->ref++; }
1410  }
1411  return res;
1412 no_ring: WerrorS("no ring");
1414  return NULL;
1415 }
unsigned si_opt_1
Definition: options.c:5
Class used for (list of) interpreter objects.
Definition: subexpr.h:82
#define Print
Definition: emacs.cc:83
Definition: tok.h:95
if(0 > strat->sl)
Definition: myNF.cc:73
Definition: tok.h:38
Definition: tok.h:213
void m2_end(int i)
Definition: misc_ip.cc:1074
void WerrorS(const char *s)
Definition: feFopen.cc:24
#define TEST_OPT_DEBUG
Definition: options.h:103
#define BITSET
Definition: structs.h:18
poly res
Definition: myNF.cc:322
#define M
Definition: sirandom.c:24
ring currRing
Widely used global variable which specifies the current polynomial ring for Singular interpreter and ...
Definition: polys.cc:10
int s_readint(s_buff F)
Definition: s_buff.cc:110
Definition: tok.h:58
omBin sleftv_bin
Definition: subexpr.cc:50
int s_iseof(s_buff F)
Definition: s_buff.cc:250
#define omAlloc0Bin(bin)
Definition: omAllocDecl.h:206
#define NULL
Definition: omList.c:10
Definition: tok.h:117
#define omFreeBin(addr, bin)
Definition: omAllocDecl.h:259
unsigned si_opt_2
Definition: options.c:6
#define NONE
Definition: tok.h:216
void Werror(const char *fmt,...)
Definition: reporter.cc:189
int l
Definition: cfEzgcd.cc:94
#define COMMAND
Definition: tok.h:29

◆ ssiRead2()

leftv ssiRead2 ( si_link  l,
leftv  key 
)

◆ ssiWrite()

BOOLEAN ssiWrite ( si_link  l,
leftv  v 
)

Definition at line 1436 of file ssiLink.cc.

1437 {
1438  if(SI_LINK_W_OPEN_P(l)==0)
1439  if (slOpen(l,SI_LINK_OPEN|SI_LINK_WRITE,NULL)) return TRUE;
1440  ssiInfo *d = (ssiInfo *)l->data;
1441  d->level++;
1442  //FILE *fich=d->f;
1443  while (data!=NULL)
1444  {
1445  int tt=data->Typ();
1446  void *dd=data->Data();
1447  attr *aa=data->Attribute();
1448  BOOLEAN with_attr=FALSE;
1449  if (((*aa)!=NULL)||(data->flag!=0))
1450  {
1451  attr a=*aa;
1452  int n=0;
1453  while(a!=NULL) { n++; a=a->next;}
1454  fprintf(d->f_write,"21 %d %d ",data->flag,n);
1455  a=*aa;
1456  }
1457  if ((dd==NULL) && (data->name!=NULL) && (tt==0)) tt=DEF_CMD;
1458  // return pure undefined names as def
1459 
1460  switch(tt /*data->Typ()*/)
1461  {
1462  case 0: /*error*/
1463  case NONE/* nothing*/:fputs("16 ",d->f_write);
1464  break;
1465  case STRING_CMD: fputs("2 ",d->f_write);
1466  ssiWriteString(d,(char *)dd);
1467  break;
1468  case INT_CMD: fputs("1 ",d->f_write);
1469  ssiWriteInt(d,(int)(long)dd);
1470  break;
1471  case BIGINT_CMD:fputs("4 ",d->f_write);
1472  ssiWriteBigInt(d,(number)dd);
1473  break;
1474  case NUMBER_CMD:
1475  if (d->r!=currRing)
1476  {
1477  fputs("15 ",d->f_write);
1479  if (d->level<=1) fputc('\n',d->f_write);
1480  }
1481  fputs("3 ",d->f_write);
1482  ssiWriteNumber(d,(number)dd);
1483  break;
1484  case RING_CMD:fputs("5 ",d->f_write);
1485  ssiWriteRing(d,(ring)dd);
1486  break;
1487  case POLY_CMD:
1488  case VECTOR_CMD:
1489  if (d->r!=currRing)
1490  {
1491  fputs("15 ",d->f_write);
1493  if (d->level<=1) fputc('\n',d->f_write);
1494  }
1495  if(tt==POLY_CMD) fputs("6 ",d->f_write);
1496  else fputs("9 ",d->f_write);
1497  ssiWritePoly(d,tt,(poly)dd);
1498  break;
1499  case IDEAL_CMD:
1500  case MODUL_CMD:
1501  case MATRIX_CMD:
1502  if (d->r!=currRing)
1503  {
1504  fputs("15 ",d->f_write);
1506  if (d->level<=1) fputc('\n',d->f_write);
1507  }
1508  if(tt==IDEAL_CMD) fputs("7 ",d->f_write);
1509  else if(tt==MATRIX_CMD) fputs("8 ",d->f_write);
1510  else
1511  {
1512  ideal M=(ideal)dd;
1513  fprintf(d->f_write,"10 %d ",(int)M->rank);
1514  }
1515  ssiWriteIdeal(d,tt,(ideal)dd);
1516  break;
1517  case COMMAND:
1518  fputs("11 ",d->f_write);
1519  ssiWriteCommand(l,(command)dd);
1520  break;
1521  case DEF_CMD: /* not evaluated stuff in quotes */
1522  fputs("12 ",d->f_write);
1523  ssiWriteString(d,data->Name());
1524  break;
1525  case PROC_CMD:
1526  fputs("13 ",d->f_write);
1527  ssiWriteProc(d,(procinfov)dd);
1528  break;
1529  case LIST_CMD:
1530  fputs("14 ",d->f_write);
1531  ssiWriteList(l,(lists)dd);
1532  break;
1533  case INTVEC_CMD:
1534  fputs("17 ",d->f_write);
1535  ssiWriteIntvec(d,(intvec *)dd);
1536  break;
1537  case INTMAT_CMD:
1538  fputs("18 ",d->f_write);
1539  ssiWriteIntmat(d,(intvec *)dd);
1540  break;
1541  case BIGINTMAT_CMD:
1542  fputs("19 ",d->f_write);
1543  ssiWriteBigintmat(d,(bigintmat *)dd);
1544  break;
1545  default:
1546  if (tt>MAX_TOK)
1547  {
1548  blackbox *b=getBlackboxStuff(tt);
1549  fputs("20 ",d->f_write);
1550  b->blackbox_serialize(b,dd,l);
1551  }
1552  else
1553  {
1554  Werror("not implemented (t:%d, rtyp:%d)",tt, data->rtyp);
1555  d->level=0;
1556  return TRUE;
1557  }
1558  break;
1559  }
1560  if (d->level<=1) { fputc('\n',d->f_write); fflush(d->f_write); }
1561  data=data->next;
1562  }
1563  d->level--;
1564  return FALSE;
1565 }
ip_command * command
Definition: ipid.h:24
const poly a
Definition: syzextra.cc:212
Definition: tok.h:95
Definition: attrib.h:15
Definition: lists.h:22
#define FALSE
Definition: auxiliary.h:94
Definition: tok.h:38
Matrices of numbers.
Definition: bigintmat.h:51
Definition: tok.h:213
#define TRUE
Definition: auxiliary.h:98
#define M
Definition: sirandom.c:24
ring currRing
Widely used global variable which specifies the current polynomial ring for Singular interpreter and ...
Definition: polys.cc:10
Definition: intvec.h:14
Definition: tok.h:58
while(1)
Definition: libparse.cc:1442
#define NULL
Definition: omList.c:10
attr next
Definition: attrib.h:21
Definition: tok.h:117
polyrec * poly
Definition: hilb.h:10
int BOOLEAN
Definition: auxiliary.h:85
const poly b
Definition: syzextra.cc:213
#define NONE
Definition: tok.h:216
void Werror(const char *fmt,...)
Definition: reporter.cc:189
int l
Definition: cfEzgcd.cc:94
#define COMMAND
Definition: tok.h:29
blackbox * getBlackboxStuff(const int t)
return the structure to the type given by t
Definition: blackbox.cc:16