 |
My Project
UNKNOWN_GIT_VERSION
|
Go to the source code of this file.
◆ 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
-
Definition at line 1972 of file ssiLink.cc.
1979 kidpid = si_waitpid(-1, &
status, WNOHANG);
1983 if (errno == EINTR)
continue;
1987 else if (kidpid==0)
break;
◆ slInitSsiExtension()
si_link_extension slInitSsiExtension |
( |
si_link_extension |
s | ) |
|
◆ slStatusSsi()
Definition at line 1602 of file ssiLink.cc.
1605 if (d==
NULL)
return "not open";
1606 if (((strcmp(
l->mode,
"fork")==0)
1607 ||(strcmp(
l->mode,
"tcp")==0)
1608 ||(strcmp(
l->mode,
"connect")==0))
1609 && (strcmp(request,
"read") == 0))
1626 case 0:
return "not ready";
1627 case -1:
return "error";
1634 if (c== -1)
return "eof";
1635 else if (isdigit(c))
1639 Werror(
"unknown char in ssiLink(%d)",c);
1645 else if (strcmp(request,
"read") == 0)
1648 else return "not ready";
1650 else if (strcmp(request,
"write") == 0)
1653 else return "not ready";
1655 else return "unknown status request";
◆ ssiClose()
Definition at line 1171 of file ssiLink.cc.
1189 si_waitpid(d->
pid,
NULL,WNOHANG);
1191 && (kill(d->
pid,0)==0))
1195 t.tv_nsec=100000000;
1196 struct timespec
rem;
1201 r = nanosleep(&t, &
rem);
1204 if (si_waitpid(d->
pid,
NULL,WNOHANG) != 0)
break;
1206 if ((r==0) || (errno != EINTR))
break;
1208 if (kill(d->
pid,0) == 0)
1216 r = nanosleep(&t, &
rem);
1219 if (si_waitpid(d->
pid,
NULL,WNOHANG) != 0)
break;
1221 if ((r==0) || (errno != EINTR))
break;
1223 if (kill(d->
pid,0) == 0)
1232 if ((strcmp(
l->mode,
"tcp")==0)
1233 || (strcmp(
l->mode,
"fork")==0))
◆ ssiCommandLink()
Definition at line 1901 of file ssiLink.cc.
1905 WerrorS(
"ERROR no reverved port requested");
1908 struct sockaddr_in cli_addr;
1909 int clilen =
sizeof(cli_addr);
1910 int newsockfd = si_accept(
ssiReserved_sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1913 Werror(
"ERROR on accept (errno=%d)",errno);
1918 si_link_extension prev =
s;
1919 while (strcmp(
s->type,
"ssi") != 0)
1921 if (
s->next ==
NULL)
1948 d->
f_write = fdopen(newsockfd,
"w");
◆ ssiOpen()
Definition at line 786 of file ssiLink.cc.
794 if (
l->mode[0] !=
'\0' && (strcmp(
l->mode,
"r") == 0))
800 else if (strcmp(
l->mode,
"w") == 0) mode =
"w";
801 else if (strcmp(
l->mode,
"fork") == 0) mode =
"fork";
802 else if (strcmp(
l->mode,
"tcp") == 0) mode =
"tcp";
803 else if (strcmp(
l->mode,
"connect") == 0) mode =
"connect";
813 if (
l->name[0] ==
'\0')
815 if (strcmp(mode,
"fork")==0)
828 if (pid == -1 && errno == EAGAIN)
841 sigemptyset(&sigint);
842 sigaddset(&sigint, SIGINT);
843 sigprocmask(SIG_BLOCK, &sigint,
NULL);
861 #ifdef HAVE_SIMPLEIPC
863 #endif // HAVE_SIMPLEIPC
864 si_close(pc[1]); si_close(cp[0]);
903 si_close(pc[0]); si_close(cp[1]);
915 Werror(
"fork failed (%d)",errno);
922 else if (strcmp(mode,
"tcp")==0)
924 int sockfd, newsockfd, portno, clilen;
925 struct sockaddr_in serv_addr, cli_addr;
926 sockfd = socket(AF_INET, SOCK_STREAM, 0);
929 WerrorS(
"ERROR opening socket");
934 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
936 serv_addr.sin_family = AF_INET;
937 serv_addr.sin_addr.s_addr = INADDR_ANY;
941 serv_addr.sin_port = htons(portno);
944 WerrorS(
"ERROR on binding (no free port available?)");
950 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
953 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
961 PrintS(
"client accepted\n");
965 d->
f_write = fdopen(newsockfd,
"w");
972 Werror(
"invalid mode >>%s<< for ssi",mode);
982 if(strcmp(mode,
"tcp")==0)
984 int sockfd, newsockfd, portno, clilen;
985 struct sockaddr_in serv_addr, cli_addr;
986 sockfd = socket(AF_INET, SOCK_STREAM, 0);
989 WerrorS(
"ERROR opening socket");
994 memset((
char *) &serv_addr,0,
sizeof(serv_addr));
996 serv_addr.sin_family = AF_INET;
997 serv_addr.sin_addr.s_addr = INADDR_ANY;
1001 serv_addr.sin_port = htons(portno);
1004 WerrorS(
"ERROR on binding (no free port available?)");
1009 while(bind(sockfd, (
struct sockaddr *) &serv_addr,
sizeof(serv_addr)) < 0);
1012 char* cli_host = (
char*)
omAlloc(256);
1013 char* path = (
char*)
omAlloc(1024);
1014 int r = si_sscanf(
l->name,
"%255[^:]:%s",cli_host,path);
1017 WerrorS(
"ERROR: no host specified");
1026 WarnS(
"program not specified, using /usr/local/bin/Singular");
1028 strcpy(path,
"/usr/local/bin/Singular");
1030 char* ssh_command = (
char*)
omAlloc(256);
1031 char* ser_host = (
char*)
omAlloc(64);
1032 gethostname(ser_host,64);
1033 sprintf(ssh_command,
"ssh %s %s -q --batch --link=ssi --MPhost=%s --MPport=%d &",cli_host,path,ser_host,portno);
1041 clilen =
sizeof(cli_addr);
1042 newsockfd = si_accept(sockfd, (
struct sockaddr *) &cli_addr, (socklen_t *)&clilen);
1054 d->
f_write = fdopen(newsockfd,
"w");
1066 else if(strcmp(mode,
"connect")==0)
1068 char* host = (
char*)
omAlloc(256);
1070 struct sockaddr_in serv_addr;
1071 struct hostent *server;
1073 si_sscanf(
l->name,
"%255[^:]:%d",host,&portno);
1077 sockfd = socket(AF_INET, SOCK_STREAM, 0);
1078 if (sockfd < 0) {
WerrorS(
"ERROR opening socket");
return TRUE; }
1079 server = gethostbyname(host);
1081 memset((
char *) &serv_addr, 0,
sizeof(serv_addr));
1082 serv_addr.sin_family = AF_INET;
1083 memcpy((
char *)&serv_addr.sin_addr.s_addr,
1084 (
char *)server->h_addr,
1086 serv_addr.sin_port = htons(portno);
1087 if (si_connect(sockfd,(sockaddr*)&serv_addr,
sizeof(serv_addr)) < 0)
1088 {
Werror(
"ERROR connecting(errno=%d)",errno);
return TRUE; }
1092 d->
f_write=fdopen(sockfd,
"w");
1109 char *filename=
l->name;
1111 if(filename[0]==
'>')
1113 if (filename[1]==
'>')
1124 outfile=
myfopen(filename,mode);
1127 if (strcmp(
l->mode,
"r")==0)
◆ ssiRead1()
Definition at line 1265 of file ssiLink.cc.
1290 res->data=(
char*)d->
r;
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;
1320 if (d->
r==
NULL)
goto no_ring;
1332 int nok=
res->Eval();
1333 if (nok)
WerrorS(
"error in eval");
1340 int nok=
res->Eval();
1341 if (nok)
WerrorS(
"error in name lookup");
1376 Print(
"incompatible versions of ssi: %d/%d vs %d/%d\n",
1381 Print(
"// opening ssi-%d, MAX_TOK=%d\n",n98_v,n98_m);
1395 default:
Werror(
"not implemented (t:%d)",t);
1404 && (
res->RingDependend()))
◆ ssiRead2()
◆ ssiWrite()
Definition at line 1433 of file ssiLink.cc.
1443 void *dd=data->Data();
1444 attr *aa=data->Attribute();
1451 fprintf(d->
f_write,
"21 %d %d ",data->flag,n);
1453 else if (data->flag!=0)
1455 fprintf(d->
f_write,
"21 %d 0 ",data->flag);
1528 fprintf(d->
f_write,
"10 %d ",(
int)
M->rank);
1565 b->blackbox_serialize(
b,dd,
l);
1569 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)
ring sBucketGetRing(const sBucket_pt bucket)
Returns bucket ring.
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)
poly sBucketPeek(sBucket_pt b)
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)