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)
 
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 1922 of file ssiLink.cc.

1923 {
1924  pid_t kidpid;
1925  int status;
1926 
1927  loop
1928  {
1929  kidpid = si_waitpid(-1, &status, WNOHANG);
1930  if (kidpid==-1)
1931  {
1932  /* continue on interruption (EINTR): */
1933  if (errno == EINTR) continue;
1934  /* break on anything else (EINVAL or ECHILD according to manpage): */
1935  break;
1936  }
1937  else if (kidpid==0) break; /* no more children to process, so break */
1938 
1939  //printf("Child %ld terminated\n", kidpid);
1941  while((hh!=NULL)&&(ssiToBeClosed_inactive))
1942  {
1943  if((hh->l!=NULL) && (hh->l->m->Open==ssiOpen))
1944  {
1945  ssiInfo *d = (ssiInfo *)hh->l->data;
1946  if(d->pid==kidpid)
1947  {
1949  {
1951  slClose(hh->l);
1953  break;
1954  }
1955  else break;
1956  }
1957  else hh=(link_list)hh->next;
1958  }
1959  else hh=(link_list)hh->next;
1960  }
1961  }
1962 }
loop
Definition: myNF.cc:98
#define FALSE
Definition: auxiliary.h:97
#define TRUE
Definition: auxiliary.h:101
#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 1536 of file ssiLink.cc.

1537 {
1538  s->Open=ssiOpen;
1539  s->Close=ssiClose;
1540  s->Kill=ssiClose;
1541  s->Read=ssiRead1;
1542  s->Read2=(slRead2Proc)NULL;
1543  s->Write=ssiWrite;
1544  s->Dump=ssiDump;
1545  s->GetDump=ssiGetDump;
1546 
1547  s->Status=slStatusSsi;
1548  s->SetRing=ssiSetRing;
1549  s->type="ssi";
1550  return s;
1551 }
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 1553 of file ssiLink.cc.

1554 {
1555  ssiInfo *d=(ssiInfo*)l->data;
1556  if (d==NULL) return "not open";
1557  if (((strcmp(l->mode,"fork")==0)
1558  ||(strcmp(l->mode,"tcp")==0)
1559  ||(strcmp(l->mode,"connect")==0))
1560  && (strcmp(request, "read") == 0))
1561  {
1562  fd_set mask;
1563  struct timeval wt;
1564  if (s_isready(d->f_read)) return "ready";
1565  loop
1566  {
1567  /* Don't block. Return socket status immediately. */
1568  wt.tv_sec = 0;
1569  wt.tv_usec = 0;
1570 
1571  FD_ZERO(&mask);
1572  FD_SET(d->fd_read, &mask);
1573  //Print("test fd %d\n",d->fd_read);
1574  /* check with select: chars waiting: no -> not ready */
1575  switch (si_select(d->fd_read+1, &mask, NULL, NULL, &wt))
1576  {
1577  case 0: /* not ready */ return "not ready";
1578  case -1: /*error*/ return "error";
1579  case 1: /*ready ? */ break;
1580  }
1581  /* yes: read 1 char*/
1582  /* if \n, check again with select else ungetc(c), ready*/
1583  int c=s_getc(d->f_read);
1584  //Print("try c=%d\n",c);
1585  if (c== -1) return "eof"; /* eof or error */
1586  else if (isdigit(c))
1587  { s_ungetc(c,d->f_read); return "ready"; }
1588  else if (c>' ')
1589  {
1590  Werror("unknown char in ssiLink(%d)",c);
1591  return "error";
1592  }
1593  /* else: next char */
1594  }
1595  }
1596  else if (strcmp(request, "read") == 0)
1597  {
1598  if (SI_LINK_R_OPEN_P(l) && (!s_iseof(d->f_read)) && (s_isready(d->f_read))) return "ready";
1599  else return "not ready";
1600  }
1601  else if (strcmp(request, "write") == 0)
1602  {
1603  if (SI_LINK_W_OPEN_P(l)) return "ready";
1604  else return "not ready";
1605  }
1606  else return "unknown status request";
1607 }
loop
Definition: myNF.cc:98
if(0 > strat->sl)
Definition: myNF.cc:73
int s_getc(s_buff F)
Definition: s_buff.cc:65
void s_ungetc(int c, s_buff F)
Definition: s_buff.cc:106
int s_iseof(s_buff F)
Definition: s_buff.cc:259
#define NULL
Definition: omList.c:10
int s_isready(s_buff F)
Definition: s_buff.cc:92
void Werror(const char *fmt,...)
Definition: reporter.cc:189
int l
Definition: cfEzgcd.cc:94

§ ssiClose()

BOOLEAN ssiClose ( si_link  l)

Definition at line 1143 of file ssiLink.cc.

1144 {
1145  if (l!=NULL)
1146  {
1148  ssiInfo *d = (ssiInfo *)l->data;
1149  if (d!=NULL)
1150  {
1151  // send quit signal
1152  if ((d->send_quit_at_exit)
1153  && (d->quit_sent==0))
1154  {
1155  fputs("99\n",d->f_write);
1156  fflush(d->f_write);
1157  }
1158  // clean ring
1159  if (d->r!=NULL) rKill(d->r);
1160  // did the child to stop ?
1161  si_waitpid(d->pid,NULL,WNOHANG);
1162  if ((d->pid!=0)
1163  && (kill(d->pid,0)==0)) // child is still running
1164  {
1165  struct timespec t;
1166  t.tv_sec=0;
1167  t.tv_nsec=100000000; // <=100 ms
1168  struct timespec rem;
1169  int r;
1170  loop
1171  {
1172  // wait till signal or time rem:
1173  r = nanosleep(&t, &rem);
1174  t = rem;
1175  // child finished:
1176  if (si_waitpid(d->pid,NULL,WNOHANG) != 0) break;
1177  // other signal, waited s>= 100 ms:
1178  if ((r==0) || (errno != EINTR)) break;
1179  }
1180  if (kill(d->pid,0) == 0) // pid still exists
1181  {
1182  kill(d->pid,15);
1183  t.tv_sec=5; // <=5s
1184  t.tv_nsec=0;
1185  loop
1186  {
1187  // wait till signal or time rem:
1188  r = nanosleep(&t, &rem);
1189  t = rem;
1190  // child finished:
1191  if (si_waitpid(d->pid,NULL,WNOHANG) != 0) break;
1192  // other signal, waited s>= 5 s:
1193  if ((r==0) || (errno != EINTR)) break;
1194  }
1195  if (kill(d->pid,0) == 0)
1196  {
1197  kill(d->pid,9); // just to be sure
1198  si_waitpid(d->pid,NULL,0);
1199  }
1200  }
1201  }
1202  if (d->f_read!=NULL) { s_close(d->f_read);s_free(d->f_read);d->f_read=NULL;}
1203  if (d->f_write!=NULL) { fclose(d->f_write); d->f_write=NULL; }
1204  if ((strcmp(l->mode,"tcp")==0)
1205  || (strcmp(l->mode,"fork")==0))
1206  {
1208  if (hh!=NULL)
1209  {
1210  if (hh->l==l)
1211  {
1213  omFreeSize(hh,sizeof(link_struct));
1214  }
1215  else while(hh->next!=NULL)
1216  {
1217  link_list hhh=(link_list)hh->next;
1218  if (hhh->l==l)
1219  {
1220  hh->next=hhh->next;
1221  omFreeSize(hhh,sizeof(link_struct));
1222  break;
1223  }
1224  else
1225  hh=(link_list)hh->next;
1226  }
1227  }
1228  }
1229  omFreeSize((ADDRESS)d,(sizeof *d));
1230  }
1231  l->data=NULL;
1232  }
1233  return FALSE;
1234 }
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:97
int s_free(s_buff &F)
Definition: s_buff.cc:44
#define omFreeSize(addr, size)
Definition: omAllocDecl.h:260
void * ADDRESS
Definition: auxiliary.h:118
int s_close(s_buff &F)
Definition: s_buff.cc:55
const ring r
Definition: syzextra.cc:208
void rKill(ring r)
Definition: ipshell.cc:6044
#define NULL
Definition: omList.c:10
int l
Definition: cfEzgcd.cc:94

§ ssiOpen()

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

Definition at line 758 of file ssiLink.cc.

759 {
760  if (l!=NULL)
761  {
762  const char *mode;
763  ssiInfo *d=(ssiInfo*)omAlloc0(sizeof(ssiInfo));
764  if (flag & SI_LINK_OPEN)
765  {
766  if (l->mode[0] != '\0' && (strcmp(l->mode, "r") == 0))
767  flag = SI_LINK_READ;
768  else flag = SI_LINK_WRITE;
769  }
770 
771  if (flag == SI_LINK_READ) mode = "r";
772  else if (strcmp(l->mode, "w") == 0) mode = "w";
773  else if (strcmp(l->mode, "fork") == 0) mode = "fork";
774  else if (strcmp(l->mode, "tcp") == 0) mode = "tcp";
775  else if (strcmp(l->mode, "connect") == 0) mode = "connect";
776  else mode = "a";
777 
778 
779  SI_LINK_SET_OPEN_P(l, flag);
780  l->data=d;
781  omFree(l->mode);
782  l->mode = omStrDup(mode);
783 
784  if (l->name[0] == '\0')
785  {
786  if (strcmp(mode,"fork")==0)
787  {
789  n->u=u;
790  n->l=l;
791  n->next=(void *)ssiToBeClosed;
792  ssiToBeClosed=n;
793 
794  int pc[2];
795  int cp[2];
796  pipe(pc);
797  pipe(cp);
798  pid_t pid = fork();
799  if (pid == -1 && errno == EAGAIN) // RLIMIT_NPROC too low?
800  {
802  pid = fork();
803  }
804  if (pid == -1)
805  {
806  WerrorS("could not fork");
807  }
808  if (pid==0) /*fork: child*/
809  {
810  /* block SIGINT */
811  sigset_t sigint;
812  sigemptyset(&sigint);
813  sigaddset(&sigint, SIGINT);
814  sigprocmask(SIG_BLOCK, &sigint, NULL);
815 
817  /* we know: l is the first entry in ssiToBeClosed-list */
818  while(hh!=NULL)
819  {
820  SI_LINK_SET_CLOSE_P(hh->l);
821  ssiInfo *dd=(ssiInfo*)hh->l->data;
822  s_close(dd->f_read);
823  s_free(dd->f_read);
824  fclose(dd->f_write);
825  if (dd->r!=NULL) rKill(dd->r);
826  omFreeSize((ADDRESS)dd,(sizeof *dd));
827  hh->l->data=NULL;
828  link_list nn=(link_list)hh->next;
829  omFree(hh);
830  hh=nn;
831  }
833 #ifdef HAVE_SIMPLEIPC
834  memset(sem_acquired, 0, SIPC_MAX_SEMAPHORES*sizeof(sem_acquired[0]));
835 #endif // HAVE_SIMPLEIPC
836  si_close(pc[1]); si_close(cp[0]);
837  d->f_write=fdopen(cp[1],"w");
838  d->f_read=s_open(pc[0]);
839  d->fd_read=pc[0];
840  d->fd_write=cp[1];
841  //d->r=currRing;
842  //if (d->r!=NULL) d->r->ref++;
843  l->data=d;
844  omFree(l->mode);
845  l->mode = omStrDup(mode);
848  //myynest=0;
850  if ((u!=NULL)&&(u->rtyp==IDHDL))
851  {
852  idhdl h=(idhdl)u->data;
853  h->lev=0;
854  }
855  loop
856  {
857  if (!SI_LINK_OPEN_P(l)) m2_end(0);
858  if(d->f_read->is_eof) m2_end(0);
859  leftv h=ssiRead1(l); /*contains an exit.... */
860  if (feErrors != NULL && *feErrors != '\0')
861  {
862  // handle errors:
863  PrintS(feErrors); /* currently quite simple */
864  *feErrors = '\0';
865  }
866  ssiWrite(l,h);
867  h->CleanUp();
868  omFreeBin(h, sleftv_bin);
869  }
870  /* never reached*/
871  }
872  else if (pid>0) /*fork: parent*/
873  {
874  d->pid=pid;
875  si_close(pc[0]); si_close(cp[1]);
876  d->f_write=fdopen(pc[1],"w");
877  d->f_read=s_open(cp[0]);
878  d->fd_read=cp[0];
879  d->fd_write=pc[1];
881  d->send_quit_at_exit=1;
882  //d->r=currRing;
883  //if (d->r!=NULL) d->r->ref++;
884  }
885  else
886  {
887  Werror("fork failed (%d)",errno);
888  l->data=NULL;
889  omFree(d);
890  return TRUE;
891  }
892  }
893  // ---------------------------------------------------------------------
894  else if (strcmp(mode,"tcp")==0)
895  {
896  int sockfd, newsockfd, portno, clilen;
897  struct sockaddr_in serv_addr, cli_addr;
898  sockfd = socket(AF_INET, SOCK_STREAM, 0);
899  if(sockfd < 0)
900  {
901  WerrorS("ERROR opening socket");
902  l->data=NULL;
903  omFree(d);
904  return TRUE;
905  }
906  memset((char *) &serv_addr,0, sizeof(serv_addr));
907  portno = 1025;
908  serv_addr.sin_family = AF_INET;
909  serv_addr.sin_addr.s_addr = INADDR_ANY;
910  do
911  {
912  portno++;
913  serv_addr.sin_port = htons(portno);
914  if(portno > 50000)
915  {
916  WerrorS("ERROR on binding (no free port available?)");
917  l->data=NULL;
918  omFree(d);
919  return TRUE;
920  }
921  }
922  while(bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0);
923  Print("waiting on port %d\n", portno);mflush();
924  listen(sockfd,1);
925  newsockfd = si_accept(sockfd, (struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
926  if(newsockfd < 0)
927  {
928  WerrorS("ERROR on accept");
929  l->data=NULL;
930  omFree(d);
931  return TRUE;
932  }
933  PrintS("client accepted\n");
934  d->fd_read = newsockfd;
935  d->fd_write = newsockfd;
936  d->f_read = s_open(newsockfd);
937  d->f_write = fdopen(newsockfd, "w");
939  si_close(sockfd);
940  }
941  // no ssi-Link on stdin or stdout
942  else
943  {
944  Werror("invalid mode >>%s<< for ssi",mode);
945  l->data=NULL;
946  omFree(d);
947  return TRUE;
948  }
949  }
950  // =========================================================================
951  else /*l->name=NULL*/
952  {
953  // tcp mode
954  if(strcmp(mode,"tcp")==0)
955  {
956  int sockfd, newsockfd, portno, clilen;
957  struct sockaddr_in serv_addr, cli_addr;
958  sockfd = socket(AF_INET, SOCK_STREAM, 0);
959  if(sockfd < 0)
960  {
961  WerrorS("ERROR opening socket");
962  l->data=NULL;
963  omFree(d);
964  return TRUE;
965  }
966  memset((char *) &serv_addr,0, sizeof(serv_addr));
967  portno = 1025;
968  serv_addr.sin_family = AF_INET;
969  serv_addr.sin_addr.s_addr = INADDR_ANY;
970  do
971  {
972  portno++;
973  serv_addr.sin_port = htons(portno);
974  if(portno > 50000)
975  {
976  WerrorS("ERROR on binding (no free port available?)");
977  l->data=NULL;
978  return TRUE;
979  }
980  }
981  while(bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0);
982  //Print("waiting on port %d\n", portno);mflush();
983  listen(sockfd,1);
984  char* cli_host = (char*)omAlloc(256);
985  char* path = (char*)omAlloc(1024);
986  int r = si_sscanf(l->name,"%255[^:]:%s",cli_host,path);
987  if(r == 0)
988  {
989  WerrorS("ERROR: no host specified");
990  l->data=NULL;
991  omFree(d);
992  omFree(path);
993  omFree(cli_host);
994  return TRUE;
995  }
996  else if(r == 1)
997  {
998  WarnS("program not specified, using /usr/local/bin/Singular");
999  Warn("in line >>%s<<",my_yylinebuf);
1000  strcpy(path,"/usr/local/bin/Singular");
1001  }
1002  char* ssh_command = (char*)omAlloc(256);
1003  char* ser_host = (char*)omAlloc(64);
1004  gethostname(ser_host,64);
1005  sprintf(ssh_command,"ssh %s %s -q --batch --link=ssi --MPhost=%s --MPport=%d &",cli_host,path,ser_host,portno);
1006  //Print("client on %s started:%s\n",cli_host,path);
1007  omFree(path);
1008  omFree(cli_host);
1009  if (TEST_OPT_PROT) { Print("running >>%s<<\n",ssh_command); }
1010  system(ssh_command);
1011  omFree(ssh_command);
1012  omFree(ser_host);
1013  clilen = sizeof(cli_addr);
1014  newsockfd = si_accept(sockfd, (struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1015  if(newsockfd < 0)
1016  {
1017  WerrorS("ERROR on accept");
1018  l->data=NULL;
1019  omFree(d);
1020  return TRUE;
1021  }
1022  //PrintS("client accepted\n");
1023  d->fd_read = newsockfd;
1024  d->fd_write = newsockfd;
1025  d->f_read = s_open(newsockfd);
1026  d->f_write = fdopen(newsockfd, "w");
1027  si_close(sockfd);
1029  d->send_quit_at_exit=1;
1030  link_list newlink=(link_list)omAlloc(sizeof(link_struct));
1031  newlink->u=u;
1032  newlink->l=l;
1033  newlink->next=(void *)ssiToBeClosed;
1034  ssiToBeClosed=newlink;
1035  fprintf(d->f_write,"98 %d %d %u %u\n",SSI_VERSION,MAX_TOK,si_opt_1,si_opt_2);
1036  }
1037  // ----------------------------------------------------------------------
1038  else if(strcmp(mode,"connect")==0)
1039  {
1040  char* host = (char*)omAlloc(256);
1041  int sockfd, portno;
1042  struct sockaddr_in serv_addr;
1043  struct hostent *server;
1044 
1045  si_sscanf(l->name,"%255[^:]:%d",host,&portno);
1046  //Print("connect to host %s, port %d\n",host,portno);mflush();
1047  if (portno!=0)
1048  {
1049  sockfd = socket(AF_INET, SOCK_STREAM, 0);
1050  if (sockfd < 0) { WerrorS("ERROR opening socket"); return TRUE; }
1051  server = gethostbyname(host);
1052  if (server == NULL) { WerrorS("ERROR, no such host"); return TRUE; }
1053  memset((char *) &serv_addr, 0, sizeof(serv_addr));
1054  serv_addr.sin_family = AF_INET;
1055  memcpy((char *)&serv_addr.sin_addr.s_addr,
1056  (char *)server->h_addr,
1057  server->h_length);
1058  serv_addr.sin_port = htons(portno);
1059  if (si_connect(sockfd,(sockaddr*)&serv_addr,sizeof(serv_addr)) < 0)
1060  { Werror("ERROR connecting(errno=%d)",errno); return TRUE; }
1061  //PrintS("connected\n");mflush();
1062  d->f_read=s_open(sockfd);
1063  d->fd_read=sockfd;
1064  d->f_write=fdopen(sockfd,"w");
1065  d->fd_write=sockfd;
1067  omFree(host);
1068  }
1069  else
1070  {
1071  l->data=NULL;
1072  omFree(d);
1073  return TRUE;
1074  }
1075  }
1076  // ======================================================================
1077  else
1078  {
1079  // normal link to a file
1080  FILE *outfile;
1081  char *filename=l->name;
1082 
1083  if(filename[0]=='>')
1084  {
1085  if (filename[1]=='>')
1086  {
1087  filename+=2;
1088  mode = "a";
1089  }
1090  else
1091  {
1092  filename++;
1093  mode="w";
1094  }
1095  }
1096  outfile=myfopen(filename,mode);
1097  if (outfile!=NULL)
1098  {
1099  if (strcmp(l->mode,"r")==0)
1100  {
1101  fclose(outfile);
1102  d->f_read=s_open_by_name(filename);
1103  }
1104  else
1105  {
1106  d->f_write = outfile;
1107  fprintf(d->f_write,"98 %d %d %u %u\n",SSI_VERSION,MAX_TOK,si_opt_1,si_opt_2);
1108  }
1109  }
1110  else
1111  {
1112  omFree(d);
1113  l->data=NULL;
1114  return TRUE;
1115  }
1116  }
1117  }
1118  }
1119 
1120  return FALSE;
1121 }
unsigned si_opt_1
Definition: options.c:5
char *(* fe_fgets_stdin)(const char *pr, char *s, int size)
Definition: feread.cc:33
Class used for (list of) interpreter objects.
Definition: subexpr.h:84
#define Print
Definition: emacs.cc:83
#define TEST_OPT_PROT
Definition: options.h:98
loop
Definition: myNF.cc:98
#define FALSE
Definition: auxiliary.h:97
int s_free(s_buff &F)
Definition: s_buff.cc:44
Definition: tok.h:213
#define omFreeSize(addr, size)
Definition: omAllocDecl.h:260
char * fe_fgets_dummy(const char *, char *, int)
Definition: feread.cc:432
void m2_end(int i)
Definition: misc_ip.cc:1072
#define TRUE
Definition: auxiliary.h:101
void * ADDRESS
Definition: auxiliary.h:118
void WerrorS(const char *s)
Definition: feFopen.cc:24
int s_close(s_buff &F)
Definition: s_buff.cc:55
#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:90
#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:72
void rKill(ring r)
Definition: ipshell.cc:6044
#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:93
#define SIPC_MAX_SEMAPHORES
Definition: simpleipc.h:10
void CleanUp(ring r=currRing)
Definition: subexpr.cc:320
#define omFreeBin(addr, bin)
Definition: omAllocDecl.h:259
int sem_acquired[SIPC_MAX_SEMAPHORES]
Definition: semaphore.c:30
s_buff s_open_by_name(const char *n)
Definition: s_buff.cc:38
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:30
#define Warn
Definition: emacs.cc:80
#define omStrDup(s)
Definition: omAllocDecl.h:263

§ ssiRead1()

leftv ssiRead1 ( si_link  l)

Definition at line 1237 of file ssiLink.cc.

1238 {
1239  ssiInfo *d = (ssiInfo *)l->data;
1240  leftv res=(leftv)omAlloc0(sizeof(sleftv));
1241  int t=0;
1242  t=s_readint(d->f_read);
1243  //Print("got type %d\n",t);
1244  switch(t)
1245  {
1246  case 1:res->rtyp=INT_CMD;
1247  res->data=(char *)(long)ssiReadInt(d->f_read);
1248  break;
1249  case 2:res->rtyp=STRING_CMD;
1250  res->data=(char *)ssiReadString(d);
1251  break;
1252  case 3:res->rtyp=NUMBER_CMD;
1253  res->data=(char *)ssiReadNumber(d);
1254  break;
1255  case 4:res->rtyp=BIGINT_CMD;
1256  res->data=(char *)ssiReadBigInt(d);
1257  break;
1258  case 15:
1259  case 5:{
1260  d->r=ssiReadRing(d);
1261  if (d->r==NULL) return NULL;
1262  res->data=(char*)d->r;
1263  res->rtyp=RING_CMD;
1264  // we are in the top-level, so set the basering to d->r:
1265  if (d->r!=NULL)
1266  {
1267  d->r->ref++;
1268  ssiSetCurrRing(d->r);
1269  }
1270  if (t==15) return ssiRead1(l);
1271  }
1272  break;
1273  case 6:res->rtyp=POLY_CMD;
1274  if (d->r==NULL) goto no_ring;
1275  res->data=(char*)ssiReadPoly(d);
1276  break;
1277  case 7:res->rtyp=IDEAL_CMD;
1278  if (d->r==NULL) goto no_ring;
1279  res->data=(char*)ssiReadIdeal(d);
1280  break;
1281  case 8:res->rtyp=MATRIX_CMD;
1282  if (d->r==NULL) goto no_ring;
1283  res->data=(char*)ssiReadMatrix(d);
1284  break;
1285  case 9:res->rtyp=VECTOR_CMD;
1286  if (d->r==NULL) goto no_ring;
1287  res->data=(char*)ssiReadPoly(d);
1288  break;
1289  case 10:res->rtyp=MODUL_CMD;
1290  if (d->r==NULL) goto no_ring;
1291  {
1292  int rk=s_readint(d->f_read);
1293  ideal M=ssiReadIdeal(d);
1294  M->rank=rk;
1295  res->data=(char*)M;
1296  }
1297  break;
1298  case 11:
1299  {
1300  res->rtyp=COMMAND;
1301  res->data=ssiReadCommand(l);
1302  int nok=res->Eval();
1303  if (nok) WerrorS("error in eval");
1304  break;
1305  }
1306  case 12: /*DEF_CMD*/
1307  {
1308  res->rtyp=0;
1309  res->name=(char *)ssiReadString(d);
1310  int nok=res->Eval();
1311  if (nok) WerrorS("error in name lookup");
1312  break;
1313  }
1314  case 13: res->rtyp=PROC_CMD;
1315  res->data=ssiReadProc(d);
1316  break;
1317  case 14: res->rtyp=LIST_CMD;
1318  res->data=ssiReadList(l);
1319  break;
1320  case 16: res->rtyp=NONE; res->data=NULL;
1321  break;
1322  case 17: res->rtyp=INTVEC_CMD;
1323  res->data=ssiReadIntvec(d);
1324  break;
1325  case 18: res->rtyp=INTMAT_CMD;
1326  res->data=ssiReadIntmat(d);
1327  break;
1328  case 19: res->rtyp=BIGINTMAT_CMD;
1329  res->data=ssiReadBigintmat(d);
1330  break;
1331  case 20: ssiReadBlackbox(res,l);
1332  break;
1333  case 21: ssiReadAttrib(res,l);
1334  break;
1335  // ------------
1336  case 98: // version
1337  {
1338  int n98_v,n98_m;
1339  BITSET n98_o1,n98_o2;
1340  n98_v=s_readint(d->f_read);
1341  n98_m=s_readint(d->f_read);
1342  n98_o1=s_readint(d->f_read);
1343  n98_o2=s_readint(d->f_read);
1344  if ((n98_v!=SSI_VERSION) ||(n98_m!=MAX_TOK))
1345  {
1346  Print("incompatible versions of ssi: %d/%d vs %d/%d",
1347  SSI_VERSION,MAX_TOK,n98_v,n98_m);
1348  }
1349  #ifndef SING_NDEBUG
1350  if (TEST_OPT_DEBUG)
1351  Print("// opening ssi-%d, MAX_TOK=%d\n",n98_v,n98_m);
1352  #endif
1353  si_opt_1=n98_o1;
1354  si_opt_2=n98_o2;
1355  return ssiRead1(l);
1356  }
1357  case 99: ssiClose(l); m2_end(0);
1358  case 0: if (s_iseof(d->f_read))
1359  {
1360  ssiClose(l);
1361  }
1362  res->rtyp=DEF_CMD;
1363  break;
1364  default: Werror("not implemented (t:%d)",t);
1365  omFreeSize(res,sizeof(sleftv));
1366  res=NULL;
1367  break;
1368  }
1369  // if currRing is required for the result, but lost
1370  // define "ssiRing%d" as currRing:
1371  if ((d->r!=NULL)
1372  && (currRing!=d->r)
1373  && (res->RingDependend()))
1374  {
1375  ssiSetCurrRing(d->r);
1376  }
1377  return res;
1378 no_ring: WerrorS("no ring");
1379  omFreeSize(res,sizeof(sleftv));
1380  return NULL;
1381 }
unsigned si_opt_1
Definition: options.c:5
Class used for (list of) interpreter objects.
Definition: subexpr.h:84
#define Print
Definition: emacs.cc:83
Definition: tok.h:94
if(0 > strat->sl)
Definition: myNF.cc:73
Definition: tok.h:38
Definition: tok.h:213
#define omFreeSize(addr, size)
Definition: omAllocDecl.h:260
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:119
Definition: tok.h:57
int s_iseof(s_buff F)
Definition: s_buff.cc:259
Definition: tok.h:99
#define NULL
Definition: omList.c:10
Definition: tok.h:116
unsigned si_opt_2
Definition: options.c:6
#define NONE
Definition: tok.h:216
void Werror(const char *fmt,...)
Definition: reporter.cc:189
#define omAlloc0(size)
Definition: omAllocDecl.h:211
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 1402 of file ssiLink.cc.

1403 {
1404  if(SI_LINK_W_OPEN_P(l)==0)
1405  if (slOpen(l,SI_LINK_OPEN|SI_LINK_WRITE,NULL)) return TRUE;
1406  ssiInfo *d = (ssiInfo *)l->data;
1407  d->level++;
1408  //FILE *fich=d->f;
1409  while (data!=NULL)
1410  {
1411  int tt=data->Typ();
1412  void *dd=data->Data();
1413  attr *aa=data->Attribute();
1414  BOOLEAN with_attr=FALSE;
1415  if (((*aa)!=NULL)||(data->flag!=0))
1416  {
1417  attr a=*aa;
1418  int n=0;
1419  while(a!=NULL) { n++; a=a->next;}
1420  fprintf(d->f_write,"21 %d %d ",data->flag,n);
1421  a=*aa;
1422  }
1423  if ((dd==NULL) && (data->name!=NULL) && (tt==0)) tt=DEF_CMD;
1424  // return pure undefined names as def
1425 
1426  switch(tt /*data->Typ()*/)
1427  {
1428  case 0: /*error*/
1429  case NONE/* nothing*/:fputs("16 ",d->f_write);
1430  break;
1431  case STRING_CMD: fputs("2 ",d->f_write);
1432  ssiWriteString(d,(char *)dd);
1433  break;
1434  case INT_CMD: fputs("1 ",d->f_write);
1435  ssiWriteInt(d,(int)(long)dd);
1436  break;
1437  case BIGINT_CMD:fputs("4 ",d->f_write);
1438  ssiWriteBigInt(d,(number)dd);
1439  break;
1440  case NUMBER_CMD:
1441  if (d->r!=currRing)
1442  {
1443  fputs("15 ",d->f_write);
1445  if (d->level<=1) fputc('\n',d->f_write);
1446  }
1447  fputs("3 ",d->f_write);
1448  ssiWriteNumber(d,(number)dd);
1449  break;
1450  case RING_CMD:fputs("5 ",d->f_write);
1451  ssiWriteRing(d,(ring)dd);
1452  break;
1453  case POLY_CMD:
1454  case VECTOR_CMD:
1455  if (d->r!=currRing)
1456  {
1457  fputs("15 ",d->f_write);
1459  if (d->level<=1) fputc('\n',d->f_write);
1460  }
1461  if(tt==POLY_CMD) fputs("6 ",d->f_write);
1462  else fputs("9 ",d->f_write);
1463  ssiWritePoly(d,tt,(poly)dd);
1464  break;
1465  case IDEAL_CMD:
1466  case MODUL_CMD:
1467  case MATRIX_CMD:
1468  if (d->r!=currRing)
1469  {
1470  fputs("15 ",d->f_write);
1472  if (d->level<=1) fputc('\n',d->f_write);
1473  }
1474  if(tt==IDEAL_CMD) fputs("7 ",d->f_write);
1475  else if(tt==MATRIX_CMD) fputs("8 ",d->f_write);
1476  else
1477  {
1478  ideal M=(ideal)dd;
1479  fprintf(d->f_write,"10 %d ",(int)M->rank);
1480  }
1481  ssiWriteIdeal(d,tt,(ideal)dd);
1482  break;
1483  case COMMAND:
1484  fputs("11 ",d->f_write);
1485  ssiWriteCommand(l,(command)dd);
1486  break;
1487  case DEF_CMD: /* not evaluated stuff in quotes */
1488  fputs("12 ",d->f_write);
1489  ssiWriteString(d,data->Name());
1490  break;
1491  case PROC_CMD:
1492  fputs("13 ",d->f_write);
1493  ssiWriteProc(d,(procinfov)dd);
1494  break;
1495  case LIST_CMD:
1496  fputs("14 ",d->f_write);
1497  ssiWriteList(l,(lists)dd);
1498  break;
1499  case INTVEC_CMD:
1500  fputs("17 ",d->f_write);
1501  ssiWriteIntvec(d,(intvec *)dd);
1502  break;
1503  case INTMAT_CMD:
1504  fputs("18 ",d->f_write);
1505  ssiWriteIntmat(d,(intvec *)dd);
1506  break;
1507  case BIGINTMAT_CMD:
1508  fputs("19 ",d->f_write);
1509  ssiWriteBigintmat(d,(bigintmat *)dd);
1510  break;
1511  default:
1512  if (tt>MAX_TOK)
1513  {
1514  blackbox *b=getBlackboxStuff(tt);
1515  fputs("20 ",d->f_write);
1516  b->blackbox_serialize(b,dd,l);
1517  }
1518  else
1519  {
1520  Werror("not implemented (t:%d, rtyp:%d)",tt, data->rtyp);
1521  d->level=0;
1522  return TRUE;
1523  }
1524  break;
1525  }
1526  if (d->level<=1) { fputc('\n',d->f_write); fflush(d->f_write); }
1527  data=data->next;
1528  }
1529  d->level--;
1530  return FALSE;
1531 }
ip_command * command
Definition: ipid.h:24
const poly a
Definition: syzextra.cc:212
Definition: tok.h:94
Definition: attrib.h:15
Definition: lists.h:22
#define FALSE
Definition: auxiliary.h:97
Definition: tok.h:38
Matrices of numbers.
Definition: bigintmat.h:51
Definition: tok.h:213
#define TRUE
Definition: auxiliary.h:101
#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:57
while(1)
Definition: libparse.cc:1442
Definition: tok.h:99
#define NULL
Definition: omList.c:10
attr next
Definition: attrib.h:21
Definition: tok.h:116
polyrec * poly
Definition: hilb.h:10
int BOOLEAN
Definition: auxiliary.h:88
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