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 1947 of file ssiLink.cc.

1948 {
1949  pid_t kidpid;
1950  int status;
1951 
1952  loop
1953  {
1954  kidpid = si_waitpid(-1, &status, WNOHANG);
1955  if (kidpid==-1)
1956  {
1957  /* continue on interruption (EINTR): */
1958  if (errno == EINTR) continue;
1959  /* break on anything else (EINVAL or ECHILD according to manpage): */
1960  break;
1961  }
1962  else if (kidpid==0) break; /* no more children to process, so break */
1963 
1964  //printf("Child %ld terminated\n", kidpid);
1966  while((hh!=NULL)&&(ssiToBeClosed_inactive))
1967  {
1968  if((hh->l!=NULL) && (hh->l->m->Open==ssiOpen))
1969  {
1970  ssiInfo *d = (ssiInfo *)hh->l->data;
1971  if(d->pid==kidpid)
1972  {
1974  {
1976  slClose(hh->l);
1978  break;
1979  }
1980  else break;
1981  }
1982  else hh=(link_list)hh->next;
1983  }
1984  else hh=(link_list)hh->next;
1985  }
1986  }
1987 }
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 1560 of file ssiLink.cc.

1561 {
1562  s->Open=ssiOpen;
1563  s->Close=ssiClose;
1564  s->Kill=ssiClose;
1565  s->Read=ssiRead1;
1566  s->Read2=(slRead2Proc)NULL;
1567  s->Write=ssiWrite;
1568  s->Dump=ssiDump;
1569  s->GetDump=ssiGetDump;
1570 
1571  s->Status=slStatusSsi;
1572  s->SetRing=ssiSetRing;
1573  s->type="ssi";
1574  return s;
1575 }
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 1577 of file ssiLink.cc.

1578 {
1579  ssiInfo *d=(ssiInfo*)l->data;
1580  if (d==NULL) return "not open";
1581  if (((strcmp(l->mode,"fork")==0)
1582  ||(strcmp(l->mode,"tcp")==0)
1583  ||(strcmp(l->mode,"connect")==0))
1584  && (strcmp(request, "read") == 0))
1585  {
1586  fd_set mask;
1587  struct timeval wt;
1588  if (s_isready(d->f_read)) return "ready";
1589  loop
1590  {
1591  /* Don't block. Return socket status immediately. */
1592  wt.tv_sec = 0;
1593  wt.tv_usec = 0;
1594 
1595  FD_ZERO(&mask);
1596  FD_SET(d->fd_read, &mask);
1597  //Print("test fd %d\n",d->fd_read);
1598  /* check with select: chars waiting: no -> not ready */
1599  switch (si_select(d->fd_read+1, &mask, NULL, NULL, &wt))
1600  {
1601  case 0: /* not ready */ return "not ready";
1602  case -1: /*error*/ return "error";
1603  case 1: /*ready ? */ break;
1604  }
1605  /* yes: read 1 char*/
1606  /* if \n, check again with select else ungetc(c), ready*/
1607  int c=s_getc(d->f_read);
1608  //Print("try c=%d\n",c);
1609  if (c== -1) return "eof"; /* eof or error */
1610  else if (isdigit(c))
1611  { s_ungetc(c,d->f_read); return "ready"; }
1612  else if (c>' ')
1613  {
1614  Werror("unknown char in ssiLink(%d)",c);
1615  return "error";
1616  }
1617  /* else: next char */
1618  }
1619  }
1620  else if (strcmp(request, "read") == 0)
1621  {
1622  if (SI_LINK_R_OPEN_P(l) && (!s_iseof(d->f_read)) && (s_isready(d->f_read))) return "ready";
1623  else return "not ready";
1624  }
1625  else if (strcmp(request, "write") == 0)
1626  {
1627  if (SI_LINK_W_OPEN_P(l)) return "ready";
1628  else return "not ready";
1629  }
1630  else return "unknown status request";
1631 }
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 1163 of file ssiLink.cc.

1164 {
1165  if (l!=NULL)
1166  {
1168  ssiInfo *d = (ssiInfo *)l->data;
1169  if (d!=NULL)
1170  {
1171  // send quit signal
1172  if ((d->send_quit_at_exit)
1173  && (d->quit_sent==0))
1174  {
1175  fputs("99\n",d->f_write);
1176  fflush(d->f_write);
1177  }
1178  // clean ring
1179  if (d->r!=NULL) rKill(d->r);
1180  // did the child to stop ?
1181  si_waitpid(d->pid,NULL,WNOHANG);
1182  if ((d->pid!=0)
1183  && (kill(d->pid,0)==0)) // child is still running
1184  {
1185  struct timespec t;
1186  t.tv_sec=0;
1187  t.tv_nsec=100000000; // <=100 ms
1188  struct timespec rem;
1189  int r;
1190  loop
1191  {
1192  // wait till signal or time rem:
1193  r = nanosleep(&t, &rem);
1194  t = rem;
1195  // child finished:
1196  if (si_waitpid(d->pid,NULL,WNOHANG) != 0) break;
1197  // other signal, waited s>= 100 ms:
1198  if ((r==0) || (errno != EINTR)) break;
1199  }
1200  if (kill(d->pid,0) == 0) // pid still exists
1201  {
1202  kill(d->pid,15);
1203  t.tv_sec=5; // <=5s
1204  t.tv_nsec=0;
1205  loop
1206  {
1207  // wait till signal or time rem:
1208  r = nanosleep(&t, &rem);
1209  t = rem;
1210  // child finished:
1211  if (si_waitpid(d->pid,NULL,WNOHANG) != 0) break;
1212  // other signal, waited s>= 5 s:
1213  if ((r==0) || (errno != EINTR)) break;
1214  }
1215  if (kill(d->pid,0) == 0)
1216  {
1217  kill(d->pid,9); // just to be sure
1218  si_waitpid(d->pid,NULL,0);
1219  }
1220  }
1221  }
1222  if (d->f_read!=NULL) { s_close(d->f_read);d->f_read=NULL;}
1223  if (d->f_write!=NULL) { fclose(d->f_write); d->f_write=NULL; }
1224  if ((strcmp(l->mode,"tcp")==0)
1225  || (strcmp(l->mode,"fork")==0))
1226  {
1228  if (hh!=NULL)
1229  {
1230  if (hh->l==l)
1231  {
1233  omFreeSize(hh,sizeof(link_struct));
1234  }
1235  else while(hh->next!=NULL)
1236  {
1237  link_list hhh=(link_list)hh->next;
1238  if (hhh->l==l)
1239  {
1240  hh->next=hhh->next;
1241  omFreeSize(hhh,sizeof(link_struct));
1242  break;
1243  }
1244  else
1245  hh=(link_list)hh->next;
1246  }
1247  }
1248  }
1249  omFreeSize((ADDRESS)d,(sizeof *d));
1250  }
1251  l->data=NULL;
1252  }
1253  return FALSE;
1254 }
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:6056
#define NULL
Definition: omList.c:10
int l
Definition: cfEzgcd.cc:94

◆ ssiCommandLink()

si_link ssiCommandLink ( )

Definition at line 1876 of file ssiLink.cc.

1877 {
1878  if (ssiReserved_P==0)
1879  {
1880  WerrorS("ERROR no reverved port requested");
1881  return NULL;
1882  }
1883  struct sockaddr_in cli_addr;
1884  int clilen = sizeof(cli_addr);
1885  int newsockfd = si_accept(ssiReserved_sockfd, (struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1886  if(newsockfd < 0)
1887  {
1888  Werror("ERROR on accept (errno=%d)",errno);
1889  return NULL;
1890  }
1892  si_link_extension s = si_link_root;
1893  si_link_extension prev = s;
1894  while (strcmp(s->type, "ssi") != 0)
1895  {
1896  if (s->next == NULL)
1897  {
1898  prev = s;
1899  s = NULL;
1900  break;
1901  }
1902  else
1903  {
1904  s = s->next;
1905  }
1906  }
1907  if (s != NULL)
1908  l->m = s;
1909  else
1910  {
1911  si_link_extension ns = (si_link_extension)omAlloc0Bin(s_si_link_extension_bin);
1912  prev->next=slInitSsiExtension(ns);
1913  l->m = prev->next;
1914  }
1915  l->name=omStrDup("");
1916  l->mode=omStrDup("tcp");
1917  l->ref=1;
1918  ssiInfo *d=(ssiInfo*)omAlloc0(sizeof(ssiInfo));
1919  l->data=d;
1920  d->fd_read = newsockfd;
1921  d->fd_write = newsockfd;
1922  d->f_read = s_open(newsockfd);
1923  d->f_write = fdopen(newsockfd, "w");
1926  if (ssiReserved_Clients<=0)
1927  {
1928  ssiReserved_P=0;
1929  si_close(ssiReserved_sockfd);
1930  }
1931  return l;
1932 }
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 778 of file ssiLink.cc.

779 {
780  if (l!=NULL)
781  {
782  const char *mode;
783  ssiInfo *d=(ssiInfo*)omAlloc0(sizeof(ssiInfo));
784  if (flag & SI_LINK_OPEN)
785  {
786  if (l->mode[0] != '\0' && (strcmp(l->mode, "r") == 0))
787  flag = SI_LINK_READ;
788  else flag = SI_LINK_WRITE;
789  }
790 
791  if (flag == SI_LINK_READ) mode = "r";
792  else if (strcmp(l->mode, "w") == 0) mode = "w";
793  else if (strcmp(l->mode, "fork") == 0) mode = "fork";
794  else if (strcmp(l->mode, "tcp") == 0) mode = "tcp";
795  else if (strcmp(l->mode, "connect") == 0) mode = "connect";
796  else mode = "a";
797 
798 
799  SI_LINK_SET_OPEN_P(l, flag);
800  if(l->data!=NULL) omFreeSize(l->data,sizeof(ssiInfo));
801  l->data=d;
802  omFree(l->mode);
803  l->mode = omStrDup(mode);
804 
805  if (l->name[0] == '\0')
806  {
807  if (strcmp(mode,"fork")==0)
808  {
810  n->u=u;
811  n->l=l;
812  n->next=(void *)ssiToBeClosed;
813  ssiToBeClosed=n;
814 
815  int pc[2];
816  int cp[2];
817  pipe(pc);
818  pipe(cp);
819  pid_t pid = fork();
820  if (pid == -1 && errno == EAGAIN) // RLIMIT_NPROC too low?
821  {
823  pid = fork();
824  }
825  if (pid == -1)
826  {
827  WerrorS("could not fork");
828  }
829  if (pid==0) /*fork: child*/
830  {
831  /* block SIGINT */
832  sigset_t sigint;
833  sigemptyset(&sigint);
834  sigaddset(&sigint, SIGINT);
835  sigprocmask(SIG_BLOCK, &sigint, NULL);
836 
838  /* we know: l is the first entry in ssiToBeClosed-list */
839  while(hh!=NULL)
840  {
841  SI_LINK_SET_CLOSE_P(hh->l);
842  ssiInfo *dd=(ssiInfo*)hh->l->data;
843  s_close(dd->f_read);
844  fclose(dd->f_write);
845  if (dd->r!=NULL) rKill(dd->r);
846  omFreeSize((ADDRESS)dd,(sizeof *dd));
847  hh->l->data=NULL;
848  link_list nn=(link_list)hh->next;
849  omFree(hh);
850  hh=nn;
851  }
853 #ifdef HAVE_SIMPLEIPC
854  memset(sem_acquired, 0, SIPC_MAX_SEMAPHORES*sizeof(sem_acquired[0]));
855 #endif // HAVE_SIMPLEIPC
856  si_close(pc[1]); si_close(cp[0]);
857  d->f_write=fdopen(cp[1],"w");
858  d->f_read=s_open(pc[0]);
859  d->fd_read=pc[0];
860  d->fd_write=cp[1];
861  //d->r=currRing;
862  //if (d->r!=NULL) d->r->ref++;
863  l->data=d;
864  omFree(l->mode);
865  l->mode = omStrDup(mode);
868  //myynest=0;
870  if ((u!=NULL)&&(u->rtyp==IDHDL))
871  {
872  idhdl h=(idhdl)u->data;
873  h->lev=0;
874  }
875  loop
876  {
877  if (!SI_LINK_OPEN_P(l)) m2_end(0);
878  if(d->f_read->is_eof) m2_end(0);
879  leftv h=ssiRead1(l); /*contains an exit.... */
880  if (feErrors != NULL && *feErrors != '\0')
881  {
882  // handle errors:
883  PrintS(feErrors); /* currently quite simple */
884  *feErrors = '\0';
885  }
886  ssiWrite(l,h);
887  h->CleanUp();
888  omFreeBin(h, sleftv_bin);
889  }
890  /* never reached*/
891  }
892  else if (pid>0) /*fork: parent*/
893  {
894  d->pid=pid;
895  si_close(pc[0]); si_close(cp[1]);
896  d->f_write=fdopen(pc[1],"w");
897  d->f_read=s_open(cp[0]);
898  d->fd_read=cp[0];
899  d->fd_write=pc[1];
901  d->send_quit_at_exit=1;
902  //d->r=currRing;
903  //if (d->r!=NULL) d->r->ref++;
904  }
905  else
906  {
907  Werror("fork failed (%d)",errno);
908  l->data=NULL;
909  omFree(d);
910  return TRUE;
911  }
912  }
913  // ---------------------------------------------------------------------
914  else if (strcmp(mode,"tcp")==0)
915  {
916  int sockfd, newsockfd, portno, clilen;
917  struct sockaddr_in serv_addr, cli_addr;
918  sockfd = socket(AF_INET, SOCK_STREAM, 0);
919  if(sockfd < 0)
920  {
921  WerrorS("ERROR opening socket");
922  l->data=NULL;
923  omFree(d);
924  return TRUE;
925  }
926  memset((char *) &serv_addr,0, sizeof(serv_addr));
927  portno = 1025;
928  serv_addr.sin_family = AF_INET;
929  serv_addr.sin_addr.s_addr = INADDR_ANY;
930  do
931  {
932  portno++;
933  serv_addr.sin_port = htons(portno);
934  if(portno > 50000)
935  {
936  WerrorS("ERROR on binding (no free port available?)");
937  l->data=NULL;
938  omFree(d);
939  return TRUE;
940  }
941  }
942  while(bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0);
943  Print("waiting on port %d\n", portno);mflush();
944  listen(sockfd,1);
945  newsockfd = si_accept(sockfd, (struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
946  if(newsockfd < 0)
947  {
948  WerrorS("ERROR on accept");
949  l->data=NULL;
950  omFree(d);
951  return TRUE;
952  }
953  PrintS("client accepted\n");
954  d->fd_read = newsockfd;
955  d->fd_write = newsockfd;
956  d->f_read = s_open(newsockfd);
957  d->f_write = fdopen(newsockfd, "w");
959  si_close(sockfd);
960  }
961  // no ssi-Link on stdin or stdout
962  else
963  {
964  Werror("invalid mode >>%s<< for ssi",mode);
965  l->data=NULL;
966  omFree(d);
967  return TRUE;
968  }
969  }
970  // =========================================================================
971  else /*l->name=NULL*/
972  {
973  // tcp mode
974  if(strcmp(mode,"tcp")==0)
975  {
976  int sockfd, newsockfd, portno, clilen;
977  struct sockaddr_in serv_addr, cli_addr;
978  sockfd = socket(AF_INET, SOCK_STREAM, 0);
979  if(sockfd < 0)
980  {
981  WerrorS("ERROR opening socket");
982  l->data=NULL;
983  omFree(d);
984  return TRUE;
985  }
986  memset((char *) &serv_addr,0, sizeof(serv_addr));
987  portno = 1025;
988  serv_addr.sin_family = AF_INET;
989  serv_addr.sin_addr.s_addr = INADDR_ANY;
990  do
991  {
992  portno++;
993  serv_addr.sin_port = htons(portno);
994  if(portno > 50000)
995  {
996  WerrorS("ERROR on binding (no free port available?)");
997  l->data=NULL;
998  return TRUE;
999  }
1000  }
1001  while(bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0);
1002  //Print("waiting on port %d\n", portno);mflush();
1003  listen(sockfd,1);
1004  char* cli_host = (char*)omAlloc(256);
1005  char* path = (char*)omAlloc(1024);
1006  int r = si_sscanf(l->name,"%255[^:]:%s",cli_host,path);
1007  if(r == 0)
1008  {
1009  WerrorS("ERROR: no host specified");
1010  l->data=NULL;
1011  omFree(d);
1012  omFree(path);
1013  omFree(cli_host);
1014  return TRUE;
1015  }
1016  else if(r == 1)
1017  {
1018  WarnS("program not specified, using /usr/local/bin/Singular");
1019  Warn("in line >>%s<<",my_yylinebuf);
1020  strcpy(path,"/usr/local/bin/Singular");
1021  }
1022  char* ssh_command = (char*)omAlloc(256);
1023  char* ser_host = (char*)omAlloc(64);
1024  gethostname(ser_host,64);
1025  sprintf(ssh_command,"ssh %s %s -q --batch --link=ssi --MPhost=%s --MPport=%d &",cli_host,path,ser_host,portno);
1026  //Print("client on %s started:%s\n",cli_host,path);
1027  omFree(path);
1028  omFree(cli_host);
1029  if (TEST_OPT_PROT) { Print("running >>%s<<\n",ssh_command); }
1030  system(ssh_command);
1031  omFree(ssh_command);
1032  omFree(ser_host);
1033  clilen = sizeof(cli_addr);
1034  newsockfd = si_accept(sockfd, (struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1035  if(newsockfd < 0)
1036  {
1037  WerrorS("ERROR on accept");
1038  l->data=NULL;
1039  omFree(d);
1040  return TRUE;
1041  }
1042  //PrintS("client accepted\n");
1043  d->fd_read = newsockfd;
1044  d->fd_write = newsockfd;
1045  d->f_read = s_open(newsockfd);
1046  d->f_write = fdopen(newsockfd, "w");
1047  si_close(sockfd);
1049  d->send_quit_at_exit=1;
1050  link_list newlink=(link_list)omAlloc(sizeof(link_struct));
1051  newlink->u=u;
1052  newlink->l=l;
1053  newlink->next=(void *)ssiToBeClosed;
1054  ssiToBeClosed=newlink;
1055  fprintf(d->f_write,"98 %d %d %u %u\n",SSI_VERSION,MAX_TOK,si_opt_1,si_opt_2);
1056  }
1057  // ----------------------------------------------------------------------
1058  else if(strcmp(mode,"connect")==0)
1059  {
1060  char* host = (char*)omAlloc(256);
1061  int sockfd, portno;
1062  struct sockaddr_in serv_addr;
1063  struct hostent *server;
1064 
1065  si_sscanf(l->name,"%255[^:]:%d",host,&portno);
1066  //Print("connect to host %s, port %d\n",host,portno);mflush();
1067  if (portno!=0)
1068  {
1069  sockfd = socket(AF_INET, SOCK_STREAM, 0);
1070  if (sockfd < 0) { WerrorS("ERROR opening socket"); return TRUE; }
1071  server = gethostbyname(host);
1072  if (server == NULL) { WerrorS("ERROR, no such host"); return TRUE; }
1073  memset((char *) &serv_addr, 0, sizeof(serv_addr));
1074  serv_addr.sin_family = AF_INET;
1075  memcpy((char *)&serv_addr.sin_addr.s_addr,
1076  (char *)server->h_addr,
1077  server->h_length);
1078  serv_addr.sin_port = htons(portno);
1079  if (si_connect(sockfd,(sockaddr*)&serv_addr,sizeof(serv_addr)) < 0)
1080  { Werror("ERROR connecting(errno=%d)",errno); return TRUE; }
1081  //PrintS("connected\n");mflush();
1082  d->f_read=s_open(sockfd);
1083  d->fd_read=sockfd;
1084  d->f_write=fdopen(sockfd,"w");
1085  d->fd_write=sockfd;
1087  omFree(host);
1088  }
1089  else
1090  {
1091  l->data=NULL;
1092  omFree(d);
1093  return TRUE;
1094  }
1095  }
1096  // ======================================================================
1097  else
1098  {
1099  // normal link to a file
1100  FILE *outfile;
1101  char *filename=l->name;
1102 
1103  if(filename[0]=='>')
1104  {
1105  if (filename[1]=='>')
1106  {
1107  filename+=2;
1108  mode = "a";
1109  }
1110  else
1111  {
1112  filename++;
1113  mode="w";
1114  }
1115  }
1116  outfile=myfopen(filename,mode);
1117  if (outfile!=NULL)
1118  {
1119  if (strcmp(l->mode,"r")==0)
1120  {
1121  fclose(outfile);
1122  d->f_read=s_open_by_name(filename);
1123  }
1124  else
1125  {
1126  d->f_write = outfile;
1127  fprintf(d->f_write,"98 %d %d %u %u\n",SSI_VERSION,MAX_TOK,si_opt_1,si_opt_2);
1128  }
1129  }
1130  else
1131  {
1132  omFree(d);
1133  l->data=NULL;
1134  return TRUE;
1135  }
1136  }
1137  }
1138  }
1139 
1140  return FALSE;
1141 }
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:83
#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:1072
#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:89
#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:6056
#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:92
#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 1257 of file ssiLink.cc.

1258 {
1259  ssiInfo *d = (ssiInfo *)l->data;
1261  int t=0;
1262  t=s_readint(d->f_read);
1263  //Print("got type %d\n",t);
1264  switch(t)
1265  {
1266  case 1:res->rtyp=INT_CMD;
1267  res->data=(char *)(long)ssiReadInt(d->f_read);
1268  break;
1269  case 2:res->rtyp=STRING_CMD;
1270  res->data=(char *)ssiReadString(d);
1271  break;
1272  case 3:res->rtyp=NUMBER_CMD;
1273  res->data=(char *)ssiReadNumber(d);
1274  break;
1275  case 4:res->rtyp=BIGINT_CMD;
1276  res->data=(char *)ssiReadBigInt(d);
1277  break;
1278  case 15:
1279  case 5:{
1280  d->r=ssiReadRing(d);
1281  if (d->r==NULL) return NULL;
1282  res->data=(char*)d->r;
1283  res->rtyp=RING_CMD;
1284  // we are in the top-level, so set the basering to d->r:
1285  if (d->r!=NULL)
1286  {
1287  if(ssiSetCurrRing(d->r)) { d->r=currRing; d->r->ref++; }
1288  }
1289  if (t==15) // setring
1290  {
1292  return ssiRead1(l);
1293  }
1294  }
1295  break;
1296  case 6:res->rtyp=POLY_CMD;
1297  if (d->r==NULL) goto no_ring;
1298  res->data=(char*)ssiReadPoly(d);
1299  break;
1300  case 7:res->rtyp=IDEAL_CMD;
1301  if (d->r==NULL) goto no_ring;
1302  res->data=(char*)ssiReadIdeal(d);
1303  break;
1304  case 8:res->rtyp=MATRIX_CMD;
1305  if (d->r==NULL) goto no_ring;
1306  res->data=(char*)ssiReadMatrix(d);
1307  break;
1308  case 9:res->rtyp=VECTOR_CMD;
1309  if (d->r==NULL) goto no_ring;
1310  res->data=(char*)ssiReadPoly(d);
1311  break;
1312  case 10:res->rtyp=MODUL_CMD;
1313  if (d->r==NULL) goto no_ring;
1314  {
1315  int rk=s_readint(d->f_read);
1316  ideal M=ssiReadIdeal(d);
1317  M->rank=rk;
1318  res->data=(char*)M;
1319  }
1320  break;
1321  case 11:
1322  {
1323  res->rtyp=COMMAND;
1324  res->data=ssiReadCommand(l);
1325  int nok=res->Eval();
1326  if (nok) WerrorS("error in eval");
1327  break;
1328  }
1329  case 12: /*DEF_CMD*/
1330  {
1331  res->rtyp=0;
1332  res->name=(char *)ssiReadString(d);
1333  int nok=res->Eval();
1334  if (nok) WerrorS("error in name lookup");
1335  break;
1336  }
1337  case 13: res->rtyp=PROC_CMD;
1338  res->data=ssiReadProc(d);
1339  break;
1340  case 14: res->rtyp=LIST_CMD;
1341  res->data=ssiReadList(l);
1342  break;
1343  case 16: res->rtyp=NONE; res->data=NULL;
1344  break;
1345  case 17: res->rtyp=INTVEC_CMD;
1346  res->data=ssiReadIntvec(d);
1347  break;
1348  case 18: res->rtyp=INTMAT_CMD;
1349  res->data=ssiReadIntmat(d);
1350  break;
1351  case 19: res->rtyp=BIGINTMAT_CMD;
1352  res->data=ssiReadBigintmat(d);
1353  break;
1354  case 20: ssiReadBlackbox(res,l);
1355  break;
1356  case 21: ssiReadAttrib(res,l);
1357  break;
1358  // ------------
1359  case 98: // version
1360  {
1361  int n98_v,n98_m;
1362  BITSET n98_o1,n98_o2;
1363  n98_v=s_readint(d->f_read);
1364  n98_m=s_readint(d->f_read);
1365  n98_o1=s_readint(d->f_read);
1366  n98_o2=s_readint(d->f_read);
1367  if ((n98_v!=SSI_VERSION) ||(n98_m!=MAX_TOK))
1368  {
1369  Print("incompatible versions of ssi: %d/%d vs %d/%d\n",
1370  SSI_VERSION,MAX_TOK,n98_v,n98_m);
1371  }
1372  #ifndef SING_NDEBUG
1373  if (TEST_OPT_DEBUG)
1374  Print("// opening ssi-%d, MAX_TOK=%d\n",n98_v,n98_m);
1375  #endif
1376  si_opt_1=n98_o1;
1377  si_opt_2=n98_o2;
1379  return ssiRead1(l);
1380  }
1381  case 99: omFreeBin(res,sleftv_bin); ssiClose(l); m2_end(0);
1382  case 0: if (s_iseof(d->f_read))
1383  {
1384  ssiClose(l);
1385  }
1386  res->rtyp=DEF_CMD;
1387  break;
1388  default: Werror("not implemented (t:%d)",t);
1390  res=NULL;
1391  break;
1392  }
1393  // if currRing is required for the result, but lost
1394  // define "ssiRing%d" as currRing:
1395  if ((d->r!=NULL)
1396  && (currRing!=d->r)
1397  && (res->RingDependend()))
1398  {
1399  if(ssiSetCurrRing(d->r)) { d->r=currRing; d->r->ref++; }
1400  }
1401  return res;
1402 no_ring: WerrorS("no ring");
1404  return NULL;
1405 }
unsigned si_opt_1
Definition: options.c:5
Class used for (list of) interpreter objects.
Definition: subexpr.h:83
#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:1072
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 1426 of file ssiLink.cc.

1427 {
1428  if(SI_LINK_W_OPEN_P(l)==0)
1429  if (slOpen(l,SI_LINK_OPEN|SI_LINK_WRITE,NULL)) return TRUE;
1430  ssiInfo *d = (ssiInfo *)l->data;
1431  d->level++;
1432  //FILE *fich=d->f;
1433  while (data!=NULL)
1434  {
1435  int tt=data->Typ();
1436  void *dd=data->Data();
1437  attr *aa=data->Attribute();
1438  BOOLEAN with_attr=FALSE;
1439  if (((*aa)!=NULL)||(data->flag!=0))
1440  {
1441  attr a=*aa;
1442  int n=0;
1443  while(a!=NULL) { n++; a=a->next;}
1444  fprintf(d->f_write,"21 %d %d ",data->flag,n);
1445  a=*aa;
1446  }
1447  if ((dd==NULL) && (data->name!=NULL) && (tt==0)) tt=DEF_CMD;
1448  // return pure undefined names as def
1449 
1450  switch(tt /*data->Typ()*/)
1451  {
1452  case 0: /*error*/
1453  case NONE/* nothing*/:fputs("16 ",d->f_write);
1454  break;
1455  case STRING_CMD: fputs("2 ",d->f_write);
1456  ssiWriteString(d,(char *)dd);
1457  break;
1458  case INT_CMD: fputs("1 ",d->f_write);
1459  ssiWriteInt(d,(int)(long)dd);
1460  break;
1461  case BIGINT_CMD:fputs("4 ",d->f_write);
1462  ssiWriteBigInt(d,(number)dd);
1463  break;
1464  case NUMBER_CMD:
1465  if (d->r!=currRing)
1466  {
1467  fputs("15 ",d->f_write);
1469  if (d->level<=1) fputc('\n',d->f_write);
1470  }
1471  fputs("3 ",d->f_write);
1472  ssiWriteNumber(d,(number)dd);
1473  break;
1474  case RING_CMD:fputs("5 ",d->f_write);
1475  ssiWriteRing(d,(ring)dd);
1476  break;
1477  case POLY_CMD:
1478  case VECTOR_CMD:
1479  if (d->r!=currRing)
1480  {
1481  fputs("15 ",d->f_write);
1483  if (d->level<=1) fputc('\n',d->f_write);
1484  }
1485  if(tt==POLY_CMD) fputs("6 ",d->f_write);
1486  else fputs("9 ",d->f_write);
1487  ssiWritePoly(d,tt,(poly)dd);
1488  break;
1489  case IDEAL_CMD:
1490  case MODUL_CMD:
1491  case MATRIX_CMD:
1492  if (d->r!=currRing)
1493  {
1494  fputs("15 ",d->f_write);
1496  if (d->level<=1) fputc('\n',d->f_write);
1497  }
1498  if(tt==IDEAL_CMD) fputs("7 ",d->f_write);
1499  else if(tt==MATRIX_CMD) fputs("8 ",d->f_write);
1500  else
1501  {
1502  ideal M=(ideal)dd;
1503  fprintf(d->f_write,"10 %d ",(int)M->rank);
1504  }
1505  ssiWriteIdeal(d,tt,(ideal)dd);
1506  break;
1507  case COMMAND:
1508  fputs("11 ",d->f_write);
1509  ssiWriteCommand(l,(command)dd);
1510  break;
1511  case DEF_CMD: /* not evaluated stuff in quotes */
1512  fputs("12 ",d->f_write);
1513  ssiWriteString(d,data->Name());
1514  break;
1515  case PROC_CMD:
1516  fputs("13 ",d->f_write);
1517  ssiWriteProc(d,(procinfov)dd);
1518  break;
1519  case LIST_CMD:
1520  fputs("14 ",d->f_write);
1521  ssiWriteList(l,(lists)dd);
1522  break;
1523  case INTVEC_CMD:
1524  fputs("17 ",d->f_write);
1525  ssiWriteIntvec(d,(intvec *)dd);
1526  break;
1527  case INTMAT_CMD:
1528  fputs("18 ",d->f_write);
1529  ssiWriteIntmat(d,(intvec *)dd);
1530  break;
1531  case BIGINTMAT_CMD:
1532  fputs("19 ",d->f_write);
1533  ssiWriteBigintmat(d,(bigintmat *)dd);
1534  break;
1535  default:
1536  if (tt>MAX_TOK)
1537  {
1538  blackbox *b=getBlackboxStuff(tt);
1539  fputs("20 ",d->f_write);
1540  b->blackbox_serialize(b,dd,l);
1541  }
1542  else
1543  {
1544  Werror("not implemented (t:%d, rtyp:%d)",tt, data->rtyp);
1545  d->level=0;
1546  return TRUE;
1547  }
1548  break;
1549  }
1550  if (d->level<=1) { fputc('\n',d->f_write); fflush(d->f_write); }
1551  data=data->next;
1552  }
1553  d->level--;
1554  return FALSE;
1555 }
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