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My Project
debian-1:4.1.1-p2+ds-4build2
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◆ 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 |
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◆ sig_chld_hdl()
void sig_chld_hdl |
( |
int |
| ) |
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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
-
Definition at line 1951 of file ssiLink.cc.
1958 kidpid = si_waitpid(-1, &
status, WNOHANG);
1962 if (errno == EINTR)
continue;
1966 else if (kidpid==0)
break;
◆ slInitSsiExtension()
si_link_extension slInitSsiExtension |
( |
si_link_extension |
s | ) |
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◆ slStatusSsi()
Definition at line 1581 of file ssiLink.cc.
1584 if (d==
NULL)
return "not open";
1585 if (((strcmp(
l->mode,
"fork")==0)
1586 ||(strcmp(
l->mode,
"tcp")==0)
1587 ||(strcmp(
l->mode,
"connect")==0))
1588 && (strcmp(request,
"read") == 0))
1605 case 0:
return "not ready";
1606 case -1:
return "error";
1613 if (c== -1)
return "eof";
1614 else if (isdigit(c))
1618 Werror(
"unknown char in ssiLink(%d)",c);
1624 else if (strcmp(request,
"read") == 0)
1627 else return "not ready";
1629 else if (strcmp(request,
"write") == 0)
1632 else return "not ready";
1634 else return "unknown status request";
◆ ssiClose()
Definition at line 1167 of file ssiLink.cc.
1185 si_waitpid(d->
pid,
NULL,WNOHANG);
1187 && (kill(d->
pid,0)==0))
1191 t.tv_nsec=100000000;
1192 struct timespec
rem;
1197 r = nanosleep(&t, &
rem);
1200 if (si_waitpid(d->
pid,
NULL,WNOHANG) != 0)
break;
1202 if ((r==0) || (errno != EINTR))
break;
1204 if (kill(d->
pid,0) == 0)
1212 r = nanosleep(&t, &
rem);
1215 if (si_waitpid(d->
pid,
NULL,WNOHANG) != 0)
break;
1217 if ((r==0) || (errno != EINTR))
break;
1219 if (kill(d->
pid,0) == 0)
1228 if ((strcmp(
l->mode,
"tcp")==0)
1229 || (strcmp(
l->mode,
"fork")==0))
◆ ssiCommandLink()
Definition at line 1880 of file ssiLink.cc.
1884 WerrorS(
"ERROR no reverved port requested");
1887 struct sockaddr_in cli_addr;
1888 int clilen =
sizeof(cli_addr);
1889 int newsockfd = si_accept(
ssiReserved_sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1892 Werror(
"ERROR on accept (errno=%d)",errno);
1897 si_link_extension prev =
s;
1898 while (strcmp(
s->type,
"ssi") != 0)
1900 if (
s->next ==
NULL)
1927 d->
f_write = fdopen(newsockfd,
"w");
◆ ssiOpen()
Definition at line 782 of file ssiLink.cc.
790 if (
l->mode[0] !=
'\0' && (strcmp(
l->mode,
"r") == 0))
796 else if (strcmp(
l->mode,
"w") == 0) mode =
"w";
797 else if (strcmp(
l->mode,
"fork") == 0) mode =
"fork";
798 else if (strcmp(
l->mode,
"tcp") == 0) mode =
"tcp";
799 else if (strcmp(
l->mode,
"connect") == 0) mode =
"connect";
809 if (
l->name[0] ==
'\0')
811 if (strcmp(mode,
"fork")==0)
824 if (pid == -1 && errno == EAGAIN)
837 sigemptyset(&sigint);
838 sigaddset(&sigint, SIGINT);
839 sigprocmask(SIG_BLOCK, &sigint,
NULL);
857 #ifdef HAVE_SIMPLEIPC
859 #endif // HAVE_SIMPLEIPC
860 si_close(pc[1]); si_close(cp[0]);
899 si_close(pc[0]); si_close(cp[1]);
911 Werror(
"fork failed (%d)",errno);
918 else if (strcmp(mode,
"tcp")==0)
920 int sockfd, newsockfd, portno, clilen;
921 struct sockaddr_in serv_addr, cli_addr;
922 sockfd = socket(AF_INET, SOCK_STREAM, 0);
925 WerrorS(
"ERROR opening socket");
930 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
932 serv_addr.sin_family = AF_INET;
933 serv_addr.sin_addr.s_addr = INADDR_ANY;
937 serv_addr.sin_port = htons(portno);
940 WerrorS(
"ERROR on binding (no free port available?)");
946 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
949 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
957 PrintS(
"client accepted\n");
961 d->
f_write = fdopen(newsockfd,
"w");
968 Werror(
"invalid mode >>%s<< for ssi",mode);
978 if(strcmp(mode,
"tcp")==0)
980 int sockfd, newsockfd, portno, clilen;
981 struct sockaddr_in serv_addr, cli_addr;
982 sockfd = socket(AF_INET, SOCK_STREAM, 0);
985 WerrorS(
"ERROR opening socket");
990 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
992 serv_addr.sin_family = AF_INET;
993 serv_addr.sin_addr.s_addr = INADDR_ANY;
997 serv_addr.sin_port = htons(portno);
1000 WerrorS(
"ERROR on binding (no free port available?)");
1005 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
1008 char* cli_host = (
char*)
omAlloc(256);
1009 char* path = (
char*)
omAlloc(1024);
1010 int r = si_sscanf(
l->name,
"%255[^:]:%s",cli_host,path);
1013 WerrorS(
"ERROR: no host specified");
1022 WarnS(
"program not specified, using /usr/local/bin/Singular");
1024 strcpy(path,
"/usr/local/bin/Singular");
1026 char* ssh_command = (
char*)
omAlloc(256);
1027 char* ser_host = (
char*)
omAlloc(64);
1028 gethostname(ser_host,64);
1029 sprintf(ssh_command,
"ssh %s %s -q --batch --link=ssi --MPhost=%s --MPport=%d &",cli_host,path,ser_host,portno);
1037 clilen =
sizeof(cli_addr);
1038 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1050 d->
f_write = fdopen(newsockfd,
"w");
1062 else if(strcmp(mode,
"connect")==0)
1064 char* host = (
char*)
omAlloc(256);
1066 struct sockaddr_in serv_addr;
1067 struct hostent *server;
1069 si_sscanf(
l->name,
"%255[^:]:%d",host,&portno);
1073 sockfd = socket(AF_INET, SOCK_STREAM, 0);
1074 if (sockfd < 0) {
WerrorS(
"ERROR opening socket");
return TRUE; }
1075 server = gethostbyname(host);
1077 memset((
char *) &serv_addr, 0,
sizeof(serv_addr));
1078 serv_addr.sin_family = AF_INET;
1079 memcpy((
char *)&serv_addr.sin_addr.s_addr,
1080 (
char *)server->h_addr,
1082 serv_addr.sin_port = htons(portno);
1083 if (si_connect(sockfd,(sockaddr*)&serv_addr,
sizeof(serv_addr)) < 0)
1084 {
Werror(
"ERROR connecting(errno=%d)",errno);
return TRUE; }
1088 d->
f_write=fdopen(sockfd,
"w");
1105 char *filename=
l->name;
1107 if(filename[0]==
'>')
1109 if (filename[1]==
'>')
1120 outfile=
myfopen(filename,mode);
1123 if (strcmp(
l->mode,
"r")==0)
◆ ssiRead1()
Definition at line 1261 of file ssiLink.cc.
1286 res->data=(
char*)d->
r;
1298 if (d->
r==
NULL)
goto no_ring;
1302 if (d->
r==
NULL)
goto no_ring;
1306 if (d->
r==
NULL)
goto no_ring;
1310 if (d->
r==
NULL)
goto no_ring;
1314 if (d->
r==
NULL)
goto no_ring;
1326 int nok=
res->Eval();
1327 if (nok)
WerrorS(
"error in eval");
1334 int nok=
res->Eval();
1335 if (nok)
WerrorS(
"error in name lookup");
1370 Print(
"incompatible versions of ssi: %d/%d vs %d/%d\n",
1375 Print(
"// opening ssi-%d, MAX_TOK=%d\n",n98_v,n98_m);
1389 default:
Werror(
"not implemented (t:%d)",t);
1398 && (
res->RingDependend()))
◆ ssiRead2()
◆ ssiWrite()
Definition at line 1427 of file ssiLink.cc.
1437 void *dd=data->Data();
1438 attr *aa=data->Attribute();
1445 fprintf(d->
f_write,
"21 %d %d ",data->flag,n);
1447 else if (data->flag!=0)
1449 fprintf(d->
f_write,
"21 %d 0 ",data->flag);
1507 fprintf(d->
f_write,
"10 %d ",(
int)
M->rank);
1544 b->blackbox_serialize(
b,dd,
l);
1548 Werror(
"not implemented (t:%d, rtyp:%d)",tt, data->rtyp);
void ssiWritePoly(const ssiInfo *d, int typ, poly p)
BOOLEAN ssiWrite(si_link l, leftv data)
char * fe_fgets_dummy(const char *, char *, int)
BOOLEAN ssiOpen(si_link l, short flag, leftv u)
intvec * ssiReadIntmat(const ssiInfo *d)
BOOLEAN ssiClose(si_link l)
#define SI_LINK_SET_CLOSE_P(l)
void ssiWriteIntvec(const ssiInfo *d, intvec *v)
matrix ssiReadMatrix(const ssiInfo *d)
int ssiReadInt(s_buff fich)
void ssiReadBlackbox(leftv res, si_link l)
BOOLEAN ssiSetCurrRing(const ring r)
command ssiReadCommand(si_link l)
void ssiWriteIntmat(const ssiInfo *d, intvec *v)
BOOLEAN ssiSetRing(si_link l, ring r, BOOLEAN send)
leftv ssiRead1(si_link l)
char *(* fe_fgets_stdin)(const char *pr, char *s, int size)
void ssiWriteNumber(const ssiInfo *d, const number n)
Class used for (list of) interpreter objects.
BOOLEAN slOpen(si_link l, short flag, leftv h)
void ssiWriteBigintmat(const ssiInfo *d, bigintmat *v)
void ssiWriteProc(const ssiInfo *d, procinfov p)
char * ssiReadString(const ssiInfo *d)
BOOLEAN singular_in_batchmode
#define SI_LINK_W_OPEN_P(l)
ring currRing
Widely used global variable which specifies the current polynomial ring for Singular interpreter and ...
bigintmat * ssiReadBigintmat(const ssiInfo *d)
BOOLEAN ssiDump(si_link l)
void PrintS(const char *s)
#define omFreeSize(addr, size)
void ssiWriteIdeal(const ssiInfo *d, int typ, const ideal I)
number ssiReadBigInt(const ssiInfo *d)
BOOLEAN ssiGetDump(si_link l)
#define SI_LINK_R_OPEN_P(l)
intvec * ssiReadIntvec(const ssiInfo *d)
s_buff s_open_by_name(const char *n)
void ssiWriteCommand(si_link l, command D)
void ssiWriteString(const ssiInfo *d, const char *s)
void s_ungetc(int c, s_buff F)
number ssiReadNumber(const ssiInfo *d)
si_link_extension si_link_root
#define SI_LINK_OPEN_P(l)
leftv(* slRead2Proc)(si_link l, leftv a)
omBin s_si_link_extension_bin
lists ssiReadList(si_link l)
void ssiWriteInt(const ssiInfo *d, const int i)
procinfov ssiReadProc(const ssiInfo *d)
ideal ssiReadIdeal(const ssiInfo *d)
void ssiReadAttrib(leftv res, si_link l)
poly ssiReadPoly(const ssiInfo *D)
static int ssiReserved_Clients
static int ssiReserved_sockfd
ring ssiReadRing(const ssiInfo *d)
FILE * myfopen(const char *path, const char *mode)
void ssiWriteList(si_link l, lists dd)
void Werror(const char *fmt,...)
BOOLEAN slClose(si_link l)
void ssiWriteBigInt(const ssiInfo *d, const number n)
#define SIPC_MAX_SEMAPHORES
void WerrorS(const char *s)
si_link_extension slInitSsiExtension(si_link_extension s)
volatile BOOLEAN ssiToBeClosed_inactive
const CanonicalForm int s
#define SI_LINK_SET_RW_OPEN_P(l)
const char * slStatusSsi(si_link l, const char *request)
#define omFreeBin(addr, bin)
blackbox * getBlackboxStuff(const int t)
return the structure to the type given by t
#define SI_LINK_SET_OPEN_P(l, flag)
void rem(unsigned long *a, unsigned long *q, unsigned long p, int °a, int degq)
int sem_acquired[SIPC_MAX_SEMAPHORES]
void ssiWriteRing(ssiInfo *d, const ring r)