[8ed989] | 1 | /**************************************** |
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| 2 | * Computer Algebra System SINGULAR * |
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| 3 | ****************************************/ |
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| 4 | /*************************************************************** |
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| 5 | * File: ssiLink.h |
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| 6 | * Purpose: declaration of sl_link routines for ssi |
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| 7 | * Version: $Id$ |
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| 8 | ***************************************************************/ |
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[8f650f3] | 9 | #include <stdio.h> |
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| 10 | #include <fcntl.h> |
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| 11 | #include <errno.h> |
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| 12 | #include <unistd.h> |
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[8ed989] | 13 | #include <sys/types.h> |
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| 14 | #include <signal.h> |
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| 15 | #include <sys/select.h> |
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[6c2364] | 16 | #include <ctype.h> /*for isdigit*/ |
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[8ed989] | 17 | |
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| 18 | |
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| 19 | #include "mod2.h" |
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| 20 | |
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| 21 | #include "tok.h" |
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| 22 | #include "ipid.h" |
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| 23 | #include <omalloc.h> |
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| 24 | #include <kernel/ring.h> |
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| 25 | #include <kernel/matpol.h> |
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| 26 | #include <kernel/ideals.h> |
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| 27 | #include <kernel/polys.h> |
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| 28 | #include <kernel/longrat.h> |
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| 29 | #include <kernel/ideals.h> |
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| 30 | #include "subexpr.h" |
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| 31 | #include "silink.h" |
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| 32 | #include "lists.h" |
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| 33 | #include "ssiLink.h" |
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| 34 | |
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| 35 | typedef struct |
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| 36 | { |
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| 37 | FILE *f_read; |
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| 38 | FILE *f_write; |
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| 39 | ring r; |
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| 40 | pid_t pid; /* only valid for fork/tcp mode*/ |
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| 41 | int fd_read,fd_write; /* only valid for fork/tcp mode*/ |
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| 42 | char level; |
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| 43 | } ssiInfo; |
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| 44 | |
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| 45 | // the helper functions: |
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| 46 | void ssiSetCurrRing(const ring r) |
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| 47 | { |
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| 48 | if (!rEqual(r,currRing,1)) |
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| 49 | { |
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| 50 | char name[20]; |
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| 51 | int nr=0; |
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| 52 | do |
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| 53 | { sprintf(name,"ssiRing%d",nr); nr++; } |
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| 54 | while(IDROOT->get(name, 0)!=NULL); |
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| 55 | idhdl h=enterid(omStrDup(name),0,RING_CMD,&IDROOT,FALSE); |
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| 56 | IDRING(h)=r; |
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| 57 | r->ref++; |
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| 58 | rSetHdl(h); |
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| 59 | } |
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| 60 | } |
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| 61 | // the implementation of the functions: |
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| 62 | void ssiWriteInt(ssiInfo *d,const int i) |
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| 63 | { |
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[8f650f3] | 64 | fprintf(d->f_write,"%d ",i); |
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| 65 | //if (d->f_debug!=NULL) fprintf(d->f_debug,"int: %d ",i); |
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[8ed989] | 66 | } |
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| 67 | |
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| 68 | void ssiWriteString(ssiInfo *d,const char *s) |
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| 69 | { |
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[8f650f3] | 70 | fprintf(d->f_write,"%d %s ",strlen(s),s); |
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| 71 | //if (d->f_debug!=NULL) fprintf(d->f_debug,"stringi: %d \"%s\" ",strlen(s),s); |
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[8ed989] | 72 | } |
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| 73 | |
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| 74 | |
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| 75 | void ssiWriteBigInt(const ssiInfo *d, const number n) |
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| 76 | { |
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| 77 | // syntax is as follows: |
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| 78 | // case 2 Q: 3 4 <int> |
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| 79 | // or 3 3 <mpz_t nominator> |
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| 80 | if(SR_HDL(n) & SR_INT) |
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| 81 | { |
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| 82 | fprintf(d->f_write,"4 %ld ",SR_TO_INT(n)); |
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[8f650f3] | 83 | //if (d->f_debug!=NULL) fprintf(d->f_debug,"bigint: short \"%ld\" ",SR_TO_INT(n)); |
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[8ed989] | 84 | } |
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| 85 | else if (n->s==3) |
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| 86 | { |
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| 87 | gmp_fprintf(d->f_write,"3 %Zd ",n->z); |
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[8f650f3] | 88 | //if (d->f_debug!=NULL) gmp_fprintf(d->f_debug,"bigint: gmp \"%Zd\" ",n->z); |
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[8ed989] | 89 | } |
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| 90 | else Werror("illiegal bigint"); |
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| 91 | } |
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| 92 | |
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| 93 | void ssiWriteNumber(const ssiInfo *d, const number n) |
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| 94 | { |
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| 95 | // syntax is as follows: |
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| 96 | // case 1 Z/p: 3 <int> |
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| 97 | // case 2 Q: 3 4 <int> |
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| 98 | // or 3 0 <mpz_t nominator> <mpz_t denominator> |
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| 99 | // or 3 1 dto. |
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| 100 | // or 3 3 <mpz_t nominator> |
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| 101 | if(rField_is_Zp(d->r)) |
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| 102 | { |
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| 103 | fprintf(d->f_write,"%d ",(int)(long)n); |
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[8f650f3] | 104 | //if (d->f_debug!=NULL) fprintf(d->f_debug,"number: \"%ld\" ",(int)(long)n); |
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[8ed989] | 105 | } |
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| 106 | else if (rField_is_Q(d->r)) |
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| 107 | { |
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| 108 | if(SR_HDL(n) & SR_INT) |
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| 109 | { |
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| 110 | fprintf(d->f_write,"4 %ld ",SR_TO_INT(n)); |
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[8f650f3] | 111 | //if (d->f_debug!=NULL) fprintf(d->f_debug,"number: short \"%ld\" ",SR_TO_INT(n)); |
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[8ed989] | 112 | } |
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| 113 | else if (n->s<2) |
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| 114 | { |
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| 115 | gmp_fprintf(d->f_write,"%d %Zd %Zd ",n->s,n->z,n->n); |
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[8f650f3] | 116 | //if (d->f_debug!=NULL) gmp_fprintf(d->f_debug,"number: s=%d gmp/gmp \"%Zd %Zd\" ",n->s,n->z,n->n); |
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[8ed989] | 117 | } |
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| 118 | else /*n->s==3*/ |
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| 119 | { |
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| 120 | gmp_fprintf(d->f_write,"3 %Zd ",n->z); |
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[8f650f3] | 121 | //if (d->f_debug!=NULL) gmp_fprintf(d->f_debug,"number: gmp \"%Zd\" ",n->z); |
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[8ed989] | 122 | } |
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| 123 | } |
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| 124 | else WerrorS("coeff field not implemented"); |
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| 125 | } |
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| 126 | |
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| 127 | void ssiWriteRing(ssiInfo *d,const ring r) |
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| 128 | { |
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| 129 | /* 5 <ch> <N> <l1> <s1>....<ln> <sN> */ |
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| 130 | if (d->r!=NULL) rKill(d->r); |
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| 131 | d->r=r; |
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| 132 | d->r->ref++; |
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| 133 | fprintf(d->f_write,"%d %d ",r->ch,r->N); |
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| 134 | |
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| 135 | int i; |
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| 136 | for(i=0;i<r->N;i++) |
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| 137 | { |
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| 138 | fprintf(d->f_write,"%d %s ",strlen(r->names[i]),r->names[i]); |
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| 139 | } |
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| 140 | /* number of orderings:*/ |
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| 141 | i=0; |
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| 142 | while (r->order[i]!=0) i++; |
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| 143 | fprintf(d->f_write,"%d ",i); |
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| 144 | /* each ordering block: */ |
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| 145 | i=0; |
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| 146 | while(r->order[i]!=0) |
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| 147 | { |
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| 148 | fprintf(d->f_write,"%d %d %d ",r->order[i],r->block0[i], r->block1[i]); |
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| 149 | i++; |
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| 150 | } |
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| 151 | } |
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| 152 | |
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| 153 | void ssiWritePoly(ssiInfo *d, int typ, poly p) |
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| 154 | { |
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| 155 | fprintf(d->f_write,"%d ",pLength(p));//number of terms |
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| 156 | int i; |
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| 157 | |
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| 158 | while(p!=NULL) |
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| 159 | { |
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| 160 | ssiWriteNumber(d,pGetCoeff(p)); |
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| 161 | //nWrite(fich,pGetCoeff(p)); |
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| 162 | fprintf(d->f_write,"%ld ",p_GetComp(p,d->r));//component |
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| 163 | |
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| 164 | for(int j=1;j<=rVar(d->r);j++) |
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| 165 | { |
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| 166 | fprintf(d->f_write,"%ld ",p_GetExp(p,j,d->r ));//x^j |
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| 167 | } |
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| 168 | pIter(p); |
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| 169 | } |
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| 170 | } |
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| 171 | |
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| 172 | void ssiWriteIdeal(ssiInfo *d, int typ,ideal I) |
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| 173 | { |
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| 174 | // syntax: 7 # of elements <poly 1> <poly2>..... |
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| 175 | // syntax: 8 <rows> <cols> <poly 1> <poly2>..... |
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| 176 | matrix M=(matrix)I; |
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| 177 | if (typ==MATRIX_CMD) |
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| 178 | fprintf(d->f_write,"%d %d ", MATROWS(M),MATCOLS(M)); |
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| 179 | else |
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| 180 | fprintf(d->f_write,"%d ",IDELEMS(I)); |
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| 181 | |
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| 182 | int i; |
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| 183 | int tt; |
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| 184 | if (typ==MODUL_CMD) tt=VECTOR_CMD; |
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| 185 | else tt=POLY_CMD; |
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| 186 | |
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| 187 | for(i=0;i<IDELEMS(I);i++) |
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| 188 | { |
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| 189 | ssiWritePoly(d,tt,I->m[i]); |
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| 190 | } |
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| 191 | } |
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| 192 | void ssiWriteCommand(si_link l, command D) |
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| 193 | { |
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| 194 | ssiInfo *d=(ssiInfo*)l->data; |
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| 195 | // syntax: <num ops> <operation> <op1> <op2> .... |
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| 196 | fprintf(d->f_write,"%d %d ",D->argc,D->op); |
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| 197 | if (D->argc >0) ssiWrite(l, &(D->arg1)); |
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[8f650f3] | 198 | if (D->argc < 4) |
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| 199 | { |
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| 200 | if (D->argc >1) ssiWrite(l, &(D->arg2)); |
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| 201 | if (D->argc >2) ssiWrite(l, &(D->arg3)); |
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| 202 | } |
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[8ed989] | 203 | } |
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| 204 | |
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| 205 | void ssiWriteProc(ssiInfo *d,procinfov p) |
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| 206 | { |
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| 207 | ssiWriteString(d,p->data.s.body); |
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| 208 | } |
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| 209 | |
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| 210 | void ssiWriteList(si_link l,lists dd) |
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| 211 | { |
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| 212 | ssiInfo *d=(ssiInfo*)l->data; |
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| 213 | fprintf(d->f_write,"%d ",dd->nr+1); |
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| 214 | int i; |
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| 215 | for(i=0;i<=dd->nr;i++) |
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| 216 | { |
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| 217 | ssiWrite(l,&(dd->m[i])); |
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| 218 | } |
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| 219 | } |
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| 220 | |
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| 221 | char *ssiReadString(ssiInfo *d) |
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| 222 | { |
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| 223 | char *buf; |
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| 224 | int l; |
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| 225 | fscanf(d->f_read,"%d ",&l); |
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| 226 | buf=(char*)omAlloc(l+1); |
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| 227 | fread(buf,1,l,d->f_read); |
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| 228 | buf[l]='\0'; |
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| 229 | return buf; |
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| 230 | } |
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| 231 | |
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| 232 | int ssiReadInt(FILE *fich) |
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| 233 | { |
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| 234 | int d; |
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| 235 | fscanf(fich,"%d",&d); |
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| 236 | return d; |
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| 237 | } |
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| 238 | |
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| 239 | number ssiReadBigInt(ssiInfo *d) |
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| 240 | { |
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| 241 | int sub_type=-1; |
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| 242 | fscanf(d->f_read,"%d",&sub_type); |
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| 243 | switch(sub_type) |
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| 244 | { |
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| 245 | case 3: |
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| 246 | {// read int or mpz_t or mpz_t, mpz_t |
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| 247 | number n=nlRInit(0); |
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| 248 | gmp_fscanf(d->f_read,"%Zd",n->z); |
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| 249 | n->s=sub_type; |
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| 250 | return n; |
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| 251 | } |
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| 252 | case 4: { int dd; fscanf(d->f_read,"%d",&dd); return INT_TO_SR(dd); } |
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| 253 | default: Werror("error in reading number: invalid subtype %d",sub_type); |
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| 254 | return NULL; |
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| 255 | } |
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| 256 | } |
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| 257 | |
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| 258 | number ssiReadNumber(ssiInfo *d) |
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| 259 | { |
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| 260 | if (rField_is_Q(d->r)) |
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| 261 | { |
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| 262 | int sub_type=-1; |
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| 263 | fscanf(d->f_read,"%d",&sub_type); |
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| 264 | switch(sub_type) |
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| 265 | { |
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| 266 | case 0: |
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| 267 | case 1: |
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| 268 | {// read int or mpz_t or mpz_t, mpz_t |
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| 269 | number n=nlRInit(0); |
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| 270 | mpz_init(n->n); |
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| 271 | gmp_fscanf(d->f_read,"%Zd %Zd",n->z,n->n); |
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| 272 | n->s=sub_type; |
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| 273 | return n; |
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| 274 | } |
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| 275 | |
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| 276 | case 3: |
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| 277 | {// read int or mpz_t or mpz_t, mpz_t |
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| 278 | number n=nlRInit(0); |
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| 279 | gmp_fscanf(d->f_read,"%Zd",n->z); |
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| 280 | n->s=sub_type; |
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| 281 | return n; |
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| 282 | } |
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| 283 | case 4: { int dd; fscanf(d->f_read,"%d",&dd); return INT_TO_SR(dd); } |
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| 284 | default: Werror("error in reading number: invalid subtype %d",sub_type); |
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| 285 | return NULL; |
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| 286 | } |
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| 287 | } |
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| 288 | else if (rField_is_Zp(d->r)) |
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| 289 | { |
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| 290 | // read int |
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| 291 | int dd; |
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| 292 | fscanf(d->f_read,"%d",&dd); |
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| 293 | return (number)dd; |
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| 294 | } |
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| 295 | else Werror("coeffs not implemented"); |
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[57dfde6] | 296 | return NULL; |
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[8ed989] | 297 | } |
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| 298 | |
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| 299 | ring ssiReadRing(ssiInfo *d) |
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| 300 | { |
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| 301 | /* syntax is <ch> <N> <l1> <s1> ....<lN> <sN> */ |
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| 302 | int ch, N,i,l; |
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| 303 | char **names; |
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| 304 | fscanf(d->f_read,"%d %d ",&ch,&N); |
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| 305 | names=(char**)omAlloc(N*sizeof(char*)); |
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| 306 | for(i=0;i<N;i++) |
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| 307 | { |
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| 308 | names[i]=ssiReadString(d); |
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| 309 | } |
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| 310 | // read the orderings: |
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| 311 | int num_ord; // number of orderings |
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| 312 | fscanf(d->f_read,"%d",&num_ord); |
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| 313 | int *ord=(int *)omAlloc0((num_ord+1)*sizeof(int)); |
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| 314 | int *block0=(int *)omAlloc0((num_ord+1)*sizeof(int)); |
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| 315 | int *block1=(int *)omAlloc0((num_ord+1)*sizeof(int)); |
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| 316 | for(i=0;i<num_ord;i++) |
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| 317 | { |
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| 318 | fscanf(d->f_read,"%d %d %d",&ord[i],&block0[i],&block1[i]); |
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| 319 | } |
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| 320 | return rDefault(ch,N,names,num_ord,ord,block0,block1); |
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| 321 | } |
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| 322 | |
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| 323 | poly ssiReadPoly(ssiInfo *D) |
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| 324 | { |
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| 325 | // < # of terms> < term1> < ..... |
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| 326 | int n,i,l; |
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| 327 | n=ssiReadInt(D->f_read); |
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| 328 | //Print("poly: terms:%d\n",n); |
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| 329 | poly p; |
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| 330 | int j; |
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| 331 | j=0; |
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| 332 | poly ret=NULL; |
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[23206f4] | 333 | poly prev=NULL; |
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[8ed989] | 334 | for(l=0;l<n;l++) // read n terms |
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| 335 | { |
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| 336 | // coef,comp.exp1,..exp N |
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| 337 | p=p_Init(D->r); |
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| 338 | pGetCoeff(p)=ssiReadNumber(D); |
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| 339 | int d; |
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| 340 | fscanf(D->f_read,"%d",&d); |
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| 341 | p_SetComp(p,d,D->r); |
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| 342 | for(i=1;i<=rVar(D->r);i++) |
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| 343 | { |
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| 344 | fscanf(D->f_read,"%d",&d); |
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| 345 | p_SetExp(p,i,d,D->r); |
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| 346 | } |
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| 347 | p_Setm(p,D->r); |
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| 348 | p_Test(p,D->r); |
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[23206f4] | 349 | if (ret==NULL) ret=p; |
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| 350 | else pNext(prev)=p; |
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| 351 | prev=p; |
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[8ed989] | 352 | } |
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| 353 | return ret; |
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| 354 | } |
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| 355 | |
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| 356 | ideal ssiReadIdeal(ssiInfo *d) |
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| 357 | { |
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| 358 | int n,i; |
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| 359 | ideal I; |
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| 360 | fscanf(d->f_read,"%d",&n); |
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| 361 | I=idInit(n,1); |
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| 362 | for(i=0;i<IDELEMS(I);i++) // read n terms |
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| 363 | { |
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| 364 | I->m [i]=ssiReadPoly(d); |
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| 365 | } |
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| 366 | return I; |
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| 367 | } |
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| 368 | |
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| 369 | matrix ssiReadMatrix(ssiInfo *d) |
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| 370 | { |
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| 371 | int n,m,i,j; |
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| 372 | fscanf(d->f_read,"%d %d",&m,&n); |
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| 373 | matrix M=mpNew(m,n); |
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| 374 | poly p; |
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| 375 | for(int i=1;i<=MATROWS(M);i++) |
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| 376 | for(int j=1;j<=MATCOLS(M);j++) |
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| 377 | { |
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| 378 | p=ssiReadPoly(d); |
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| 379 | MATELEM(M,i,j)=p; |
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| 380 | } |
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| 381 | return M; |
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| 382 | } |
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| 383 | |
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| 384 | command ssiReadCommand(si_link l) |
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| 385 | { |
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| 386 | ssiInfo *d=(ssiInfo*)l->data; |
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| 387 | // syntax: <num ops> <operation> <op1> <op2> .... |
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| 388 | command D=(command)omAlloc0(sizeof(*D)); |
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| 389 | int argc,op; |
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| 390 | fscanf(d->f_read,"%d %d",&argc,&op); |
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| 391 | D->argc=argc; D->op=op; |
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| 392 | leftv v; |
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| 393 | if (argc >0) |
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| 394 | { |
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| 395 | v=ssiRead1(l); |
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| 396 | memcpy(&(D->arg1),v,sizeof(*v)); |
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| 397 | omFreeBin(v,sleftv_bin); |
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| 398 | } |
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[8f650f3] | 399 | if (argc <4) |
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[8ed989] | 400 | { |
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[8f650f3] | 401 | if (D->argc >1) |
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| 402 | { |
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| 403 | v=ssiRead1(l); |
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| 404 | memcpy(&(D->arg2),v,sizeof(*v)); |
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| 405 | omFreeBin(v,sleftv_bin); |
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| 406 | } |
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| 407 | if (D->argc >2) |
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| 408 | { |
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| 409 | v=ssiRead1(l); |
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| 410 | memcpy(&(D->arg3),v,sizeof(*v)); |
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| 411 | omFreeBin(v,sleftv_bin); |
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| 412 | } |
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[8ed989] | 413 | } |
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[8f650f3] | 414 | else |
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[8ed989] | 415 | { |
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[8f650f3] | 416 | leftv prev=&(D->arg1); |
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| 417 | argc--; |
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| 418 | while(argc >0) |
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| 419 | { |
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| 420 | v=ssiRead1(l); |
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| 421 | prev->next=v; |
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| 422 | prev=v; |
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| 423 | argc--; |
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| 424 | } |
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[8ed989] | 425 | } |
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| 426 | return D; |
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| 427 | } |
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| 428 | |
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| 429 | procinfov ssiReadProc(ssiInfo *d) |
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| 430 | { |
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| 431 | char *s=ssiReadString(d); |
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| 432 | procinfov p=(procinfov)omAlloc0Bin(procinfo_bin); |
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| 433 | p->language=LANG_SINGULAR; |
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| 434 | p->libname=omStrDup(""); |
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| 435 | p->procname=omStrDup(""); |
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| 436 | p->data.s.body=s; |
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| 437 | return p; |
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| 438 | } |
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| 439 | lists ssiReadList(si_link l) |
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| 440 | { |
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| 441 | ssiInfo *d=(ssiInfo*)l->data; |
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| 442 | int nr; |
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| 443 | fscanf(d->f_read,"%d",&nr); |
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| 444 | lists L=(lists)omAlloc(sizeof(*L)); |
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| 445 | L->Init(nr); |
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| 446 | |
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| 447 | int i; |
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| 448 | leftv v; |
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| 449 | for(i=0;i<nr;i++) |
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| 450 | { |
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| 451 | v=ssiRead1(l); |
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| 452 | memcpy(&(L->m[i]),v,sizeof(*v)); |
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| 453 | omFreeBin(v,sleftv_bin); |
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| 454 | } |
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| 455 | return L; |
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| 456 | } |
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| 457 | |
---|
| 458 | //**************************************************************************/ |
---|
| 459 | BOOLEAN ssiOpen(si_link l, short flag) |
---|
| 460 | { |
---|
| 461 | const char *mode; |
---|
| 462 | ssiInfo *d=(ssiInfo*)omAlloc0(sizeof(ssiInfo)); |
---|
| 463 | if (flag & SI_LINK_OPEN) |
---|
| 464 | { |
---|
| 465 | if (l->mode[0] != '\0' && (strcmp(l->mode, "r") == 0)) |
---|
| 466 | flag = SI_LINK_READ; |
---|
| 467 | else flag = SI_LINK_WRITE; |
---|
| 468 | } |
---|
| 469 | |
---|
| 470 | if (flag == SI_LINK_READ) mode = "r"; |
---|
| 471 | else if (strcmp(l->mode, "w") == 0) mode = "w"; |
---|
| 472 | else if (strcmp(l->mode, "fork") == 0) mode = "fork"; |
---|
| 473 | else mode = "a"; |
---|
| 474 | |
---|
| 475 | |
---|
| 476 | if (l->name[0] == '\0') |
---|
| 477 | { |
---|
| 478 | if (strcmp(mode,"fork")==0) |
---|
| 479 | { |
---|
| 480 | int pc[2]; |
---|
| 481 | int cp[2]; |
---|
| 482 | pipe(pc); |
---|
| 483 | pipe(cp); |
---|
| 484 | pid_t pid=fork(); |
---|
| 485 | if (pid==0) /*child*/ |
---|
| 486 | { |
---|
| 487 | close(pc[1]); close(cp[0]); |
---|
| 488 | d->f_read=fdopen(pc[0],"r"); |
---|
| 489 | d->fd_read=pc[0]; |
---|
| 490 | d->f_write=fdopen(cp[1],"w"); |
---|
| 491 | d->fd_write=cp[1]; |
---|
| 492 | l->data=d; |
---|
| 493 | omFree(l->mode); |
---|
| 494 | l->mode = omStrDup(mode); |
---|
| 495 | SI_LINK_SET_OPEN_P(l, flag); |
---|
| 496 | myynest=0; |
---|
| 497 | fe_fgets_stdin=fe_fgets_dummy; |
---|
| 498 | loop |
---|
| 499 | { |
---|
| 500 | leftv h=ssiRead1(l); /*contains an exit.... */ |
---|
[23206f4] | 501 | if (feErrors != NULL && *feErrors != '\0') |
---|
| 502 | { |
---|
| 503 | // handle errors: |
---|
| 504 | PrintS(feErrors); /* currently quite simple */ |
---|
| 505 | *feErrors = '\0'; |
---|
| 506 | } |
---|
[8ed989] | 507 | ssiWrite(l,h); |
---|
| 508 | h->CleanUp(); |
---|
| 509 | omFreeBin(h, sleftv_bin); |
---|
| 510 | } |
---|
[23206f4] | 511 | /* never reached*/ |
---|
[8ed989] | 512 | } |
---|
| 513 | else if (pid>0) |
---|
| 514 | { |
---|
| 515 | d->pid=pid; |
---|
| 516 | close(pc[0]); close(cp[1]); |
---|
| 517 | d->f_read=fdopen(cp[0],"r"); |
---|
[767349] | 518 | d->fd_read=cp[0]; |
---|
[8ed989] | 519 | d->f_write=fdopen(pc[1],"w"); |
---|
[767349] | 520 | d->fd_write=pc[1]; |
---|
[8ed989] | 521 | l->flags|=SI_LINK_READ|SI_LINK_WRITE; |
---|
| 522 | } |
---|
| 523 | else |
---|
| 524 | { |
---|
| 525 | Werror("fork failed (%d)",errno); |
---|
| 526 | } |
---|
| 527 | } |
---|
| 528 | // stdin or stdout |
---|
| 529 | else if (flag == SI_LINK_READ) |
---|
| 530 | { |
---|
| 531 | d->f_read = stdin; |
---|
| 532 | mode = "r"; |
---|
| 533 | } |
---|
| 534 | else |
---|
| 535 | { |
---|
| 536 | d->f_write = stdout; |
---|
| 537 | mode = "a"; |
---|
| 538 | } |
---|
| 539 | } |
---|
| 540 | else |
---|
| 541 | { |
---|
| 542 | // normal ascii link to a file |
---|
| 543 | FILE *outfile; |
---|
| 544 | char *filename=l->name; |
---|
| 545 | |
---|
| 546 | if(filename[0]=='>') |
---|
| 547 | { |
---|
| 548 | if (filename[1]=='>') |
---|
| 549 | { |
---|
| 550 | filename+=2; |
---|
| 551 | mode = "a"; |
---|
| 552 | } |
---|
| 553 | else |
---|
| 554 | { |
---|
| 555 | filename++; |
---|
| 556 | mode="w"; |
---|
| 557 | } |
---|
| 558 | } |
---|
| 559 | outfile=myfopen(filename,mode); |
---|
| 560 | if (outfile!=NULL) |
---|
[8f650f3] | 561 | { |
---|
| 562 | if (strcmp(l->mode,"r")==0) d->f_read = outfile; |
---|
| 563 | else d->f_write = outfile; |
---|
| 564 | } |
---|
[8ed989] | 565 | else |
---|
| 566 | { |
---|
| 567 | omFree(d); |
---|
| 568 | return TRUE; |
---|
| 569 | } |
---|
| 570 | } |
---|
| 571 | l->data=d; |
---|
| 572 | |
---|
| 573 | omFree(l->mode); |
---|
| 574 | l->mode = omStrDup(mode); |
---|
| 575 | SI_LINK_SET_OPEN_P(l, flag); |
---|
| 576 | return FALSE; |
---|
| 577 | } |
---|
| 578 | |
---|
| 579 | //**************************************************************************/ |
---|
| 580 | LINKAGE BOOLEAN ssiClose(si_link l) |
---|
| 581 | { |
---|
| 582 | ssiInfo *d = (ssiInfo *)l->data; |
---|
| 583 | if (d!=NULL) |
---|
| 584 | { |
---|
| 585 | if (d->pid!=0) { fprintf(d->f_write,"99\n");fflush(d->f_write); } |
---|
| 586 | if (d->f_read!=NULL) fclose(d->f_read); |
---|
| 587 | if (d->f_write!=NULL) fclose(d->f_write); |
---|
| 588 | if (d->r!=NULL) rKill(d->r); |
---|
| 589 | if (d->pid!=0) { kill(d->pid,15); kill(d->pid,9); } |
---|
| 590 | omFreeSize((ADDRESS)d,(sizeof *d)); |
---|
| 591 | } |
---|
| 592 | l->data=NULL; |
---|
| 593 | SI_LINK_SET_CLOSE_P(l); |
---|
| 594 | return FALSE; |
---|
| 595 | } |
---|
| 596 | |
---|
| 597 | //**************************************************************************/ |
---|
| 598 | LINKAGE leftv ssiRead1(si_link l) |
---|
| 599 | { |
---|
| 600 | ssiInfo *d = (ssiInfo *)l->data; |
---|
| 601 | leftv res=(leftv)omAlloc0(sizeof(sleftv)); |
---|
| 602 | int t=0; |
---|
| 603 | fscanf(d->f_read,"%d",&t); |
---|
| 604 | //Print("got type %d\n",t); |
---|
| 605 | switch(t) |
---|
| 606 | { |
---|
| 607 | case 1:res->rtyp=INT_CMD; |
---|
| 608 | res->data=(char *)ssiReadInt(d->f_read); |
---|
| 609 | break; |
---|
| 610 | case 2:res->rtyp=STRING_CMD; |
---|
| 611 | res->data=(char *)ssiReadString(d); |
---|
| 612 | break; |
---|
| 613 | case 3:res->rtyp=NUMBER_CMD; |
---|
| 614 | res->data=(char *)ssiReadNumber(d); |
---|
| 615 | break; |
---|
| 616 | case 4:res->rtyp=BIGINT_CMD; |
---|
| 617 | res->data=(char *)ssiReadBigInt(d); |
---|
| 618 | break; |
---|
[8f650f3] | 619 | case 15: |
---|
[8ed989] | 620 | case 5:{ |
---|
| 621 | d->r=ssiReadRing(d); |
---|
| 622 | d->r->ref++; |
---|
| 623 | res->rtyp=RING_CMD; |
---|
| 624 | res->data=(char*)d->r; |
---|
| 625 | // we are in the top-level, so set the basering to d->r: |
---|
| 626 | ssiSetCurrRing(d->r); |
---|
[8f650f3] | 627 | if (t==15) return ssiRead1(l); |
---|
[8ed989] | 628 | } |
---|
| 629 | break; |
---|
| 630 | case 6:res->rtyp=POLY_CMD; |
---|
| 631 | if (d->r==NULL) goto no_ring; |
---|
| 632 | res->data=(char*)ssiReadPoly(d); |
---|
| 633 | break; |
---|
| 634 | case 7:res->rtyp=IDEAL_CMD; |
---|
| 635 | if (d->r==NULL) goto no_ring; |
---|
| 636 | res->data=(char*)ssiReadIdeal(d); |
---|
| 637 | break; |
---|
| 638 | case 8:res->rtyp=MATRIX_CMD; |
---|
| 639 | if (d->r==NULL) goto no_ring; |
---|
| 640 | res->data=(char*)ssiReadMatrix(d); |
---|
| 641 | break; |
---|
| 642 | case 9:res->rtyp=VECTOR_CMD; |
---|
| 643 | if (d->r==NULL) goto no_ring; |
---|
| 644 | res->data=(char*)ssiReadPoly(d); |
---|
| 645 | break; |
---|
| 646 | case 10:res->rtyp=MODUL_CMD; |
---|
| 647 | if (d->r==NULL) goto no_ring; |
---|
| 648 | res->data=(char*)ssiReadIdeal(d); |
---|
| 649 | break; |
---|
| 650 | case 11: |
---|
| 651 | { |
---|
| 652 | res->rtyp=COMMAND; |
---|
| 653 | res->data=ssiReadCommand(l); |
---|
| 654 | int nok=res->Eval(); |
---|
| 655 | if (nok) WerrorS("error in eval"); |
---|
| 656 | break; |
---|
| 657 | } |
---|
[8f650f3] | 658 | case 12: /*DEF_CMD*/ |
---|
[8ed989] | 659 | { |
---|
| 660 | res->rtyp=0; |
---|
| 661 | res->name=(char *)ssiReadString(d); |
---|
| 662 | int nok=res->Eval(); |
---|
| 663 | if (nok) WerrorS("error in name lookup"); |
---|
| 664 | break; |
---|
| 665 | } |
---|
| 666 | case 13: res->rtyp=PROC_CMD; |
---|
| 667 | res->data=ssiReadProc(d); |
---|
| 668 | break; |
---|
| 669 | case 14: res->rtyp=LIST_CMD; |
---|
| 670 | res->data=ssiReadList(l); |
---|
| 671 | break; |
---|
| 672 | case 99: ssiClose(l); exit(0); |
---|
| 673 | case 0: if (feof(d->f_read)) |
---|
| 674 | { |
---|
| 675 | ssiClose(l); |
---|
| 676 | res->rtyp=DEF_CMD; |
---|
| 677 | break; |
---|
| 678 | } |
---|
| 679 | default: WerrorS("not implemented"); |
---|
| 680 | omFreeSize(res,sizeof(sleftv)); |
---|
| 681 | res=NULL; |
---|
| 682 | break; |
---|
| 683 | } |
---|
| 684 | return res; |
---|
| 685 | no_ring: WerrorS("no ring"); |
---|
| 686 | return NULL; |
---|
| 687 | } |
---|
| 688 | //**************************************************************************/ |
---|
| 689 | LINKAGE BOOLEAN ssiWrite(si_link l, leftv data) |
---|
| 690 | { |
---|
| 691 | if(!SI_LINK_W_OPEN_P(l)) slOpen(l,SI_LINK_OPEN|SI_LINK_WRITE); |
---|
| 692 | ssiInfo *d = (ssiInfo *)l->data; |
---|
| 693 | d->level++; |
---|
| 694 | //FILE *fich=d->f; |
---|
| 695 | while (data!=NULL) |
---|
| 696 | { |
---|
| 697 | int tt=data->Typ(); |
---|
| 698 | void *dd=data->Data(); |
---|
| 699 | |
---|
| 700 | switch(tt /*data->Typ()*/) |
---|
| 701 | { |
---|
| 702 | case STRING_CMD: fprintf(d->f_write,"2 "); |
---|
| 703 | ssiWriteString(d,(char *)dd); |
---|
| 704 | break; |
---|
| 705 | case INT_CMD: fprintf(d->f_write,"1 "); |
---|
| 706 | ssiWriteInt(d,(int)(long)dd); |
---|
| 707 | break; |
---|
| 708 | case BIGINT_CMD:fprintf(d->f_write,"4 "); |
---|
| 709 | ssiWriteBigInt(d,(number)dd); |
---|
| 710 | break; |
---|
| 711 | case NUMBER_CMD: |
---|
| 712 | if (d->r!=currRing) |
---|
| 713 | { |
---|
[8f650f3] | 714 | fprintf(d->f_write,"15 "); |
---|
[8ed989] | 715 | ssiWriteRing(d,currRing); |
---|
| 716 | if (d->level<=1) fprintf(d->f_write,"\n"); |
---|
| 717 | } |
---|
| 718 | fprintf(d->f_write,"3 "); |
---|
| 719 | ssiWriteNumber(d,(number)dd); |
---|
| 720 | break; |
---|
| 721 | case RING_CMD:fprintf(d->f_write,"5 "); |
---|
| 722 | ssiWriteRing(d,(ring)dd); |
---|
| 723 | break; |
---|
| 724 | case POLY_CMD: |
---|
| 725 | case VECTOR_CMD: |
---|
| 726 | if (d->r!=currRing) |
---|
| 727 | { |
---|
[8f650f3] | 728 | fprintf(d->f_write,"15 "); |
---|
[8ed989] | 729 | ssiWriteRing(d,currRing); |
---|
| 730 | if (d->level<=1) fprintf(d->f_write,"\n"); |
---|
| 731 | } |
---|
| 732 | if(tt==POLY_CMD) fprintf(d->f_write,"6 "); |
---|
| 733 | else fprintf(d->f_write,"9 "); |
---|
| 734 | ssiWritePoly(d,tt,(poly)dd); |
---|
| 735 | break; |
---|
| 736 | case IDEAL_CMD: |
---|
| 737 | case MODUL_CMD: |
---|
| 738 | case MATRIX_CMD: |
---|
| 739 | if (d->r!=currRing) |
---|
| 740 | { |
---|
[8f650f3] | 741 | fprintf(d->f_write,"15 "); |
---|
[8ed989] | 742 | ssiWriteRing(d,currRing); |
---|
| 743 | if (d->level<=1) fprintf(d->f_write,"\n"); |
---|
| 744 | } |
---|
| 745 | if(tt==IDEAL_CMD) fprintf(d->f_write,"7 "); |
---|
| 746 | else if(tt==MATRIX_CMD) fprintf(d->f_write,"8 "); |
---|
| 747 | else fprintf(d->f_write,"10 "); |
---|
| 748 | ssiWriteIdeal(d,tt,(ideal)dd); |
---|
| 749 | break; |
---|
| 750 | case COMMAND: |
---|
| 751 | fprintf(d->f_write,"11 "); |
---|
| 752 | ssiWriteCommand(l,(command)dd); |
---|
| 753 | break; |
---|
| 754 | case DEF_CMD: /* not evaluated stuff in quotes */ |
---|
| 755 | fprintf(d->f_write,"12 "); |
---|
[8f650f3] | 756 | ssiWriteString(d,data->Name()); |
---|
[8ed989] | 757 | break; |
---|
| 758 | case PROC_CMD: |
---|
| 759 | fprintf(d->f_write,"13 "); |
---|
[8f650f3] | 760 | ssiWriteProc(d,(procinfov)dd); |
---|
| 761 | break; |
---|
[8ed989] | 762 | case LIST_CMD: |
---|
[8f650f3] | 763 | fprintf(d->f_write,"14 "); |
---|
| 764 | ssiWriteList(l,(lists)dd); |
---|
| 765 | break; |
---|
| 766 | default: Werror("not implemented (t:%d, rtyp:%d)",tt, data->rtyp); |
---|
[8ed989] | 767 | d->level=0; |
---|
| 768 | return TRUE; |
---|
| 769 | } |
---|
| 770 | if (d->level<=1) { fprintf(d->f_write,"\n"); fflush(d->f_write); } |
---|
| 771 | data=data->next; |
---|
| 772 | } |
---|
| 773 | d->level--; |
---|
| 774 | return FALSE; |
---|
| 775 | } |
---|
| 776 | |
---|
| 777 | si_link_extension slInitSsiExtension(si_link_extension s) |
---|
| 778 | { |
---|
| 779 | s->Open=(slOpenProc)ssiOpen; |
---|
| 780 | s->Close=(slCloseProc)ssiClose; |
---|
| 781 | s->Kill=(slKillProc)ssiClose; |
---|
| 782 | s->Read=(slReadProc)ssiRead1; |
---|
| 783 | s->Read2=(slRead2Proc)NULL; |
---|
| 784 | s->Write=(slWriteProc)ssiWrite; |
---|
| 785 | |
---|
| 786 | s->Status=slStatusSsi; |
---|
| 787 | s->type="ssi"; |
---|
| 788 | return s; |
---|
| 789 | } |
---|
| 790 | const char* slStatusSsi(si_link l, const char* request) |
---|
| 791 | { |
---|
| 792 | ssiInfo *d=(ssiInfo*)l->data; |
---|
[767349] | 793 | if (d==NULL) return "not open"; |
---|
[8ed989] | 794 | if ((strcmp(l->mode,"fork")==0) && (strcmp(request, "read") == 0)) |
---|
| 795 | { |
---|
| 796 | fd_set mask, fdmask; |
---|
| 797 | struct timeval wt; |
---|
| 798 | loop |
---|
| 799 | { |
---|
| 800 | /* Don't block. Return socket status immediately. */ |
---|
| 801 | wt.tv_sec = 0; |
---|
| 802 | wt.tv_usec = 0; |
---|
| 803 | |
---|
| 804 | FD_ZERO(&mask); |
---|
| 805 | FD_SET(d->fd_read, &mask); |
---|
[767349] | 806 | //Print("test fd %d\n",d->fd_read); |
---|
[8ed989] | 807 | /* check with select: chars waiting: no -> not ready */ |
---|
| 808 | switch (select(d->fd_read+1, &mask, NULL, NULL, &wt)) |
---|
| 809 | { |
---|
| 810 | case 0: /* not ready */ return "not ready"; |
---|
| 811 | case -1: /*error*/ return "error"; |
---|
| 812 | case 1: /*ready ? */ break; |
---|
| 813 | } |
---|
| 814 | /* yes: read 1 char*/ |
---|
| 815 | /* if \n, check again with select else ungetc(c), ready*/ |
---|
| 816 | int c=fgetc(d->f_read); |
---|
[767349] | 817 | //Print("try c=%d\n",c); |
---|
[6c2364] | 818 | if (c== -1) return "eof"; |
---|
| 819 | else if (isdigit(c)) |
---|
| 820 | { ungetc(c,d->f_read); return "ready"; } |
---|
| 821 | else if ((c!=' ') && (c!='\n')) |
---|
[8ed989] | 822 | { |
---|
[6c2364] | 823 | Werror("unknown char in ssiLink(%d)",c); |
---|
| 824 | return "error"; |
---|
[8ed989] | 825 | } |
---|
[6c2364] | 826 | /* else: next char */ |
---|
[8ed989] | 827 | } |
---|
| 828 | } |
---|
| 829 | else if (strcmp(request, "read") == 0) |
---|
| 830 | { |
---|
| 831 | if (SI_LINK_R_OPEN_P(l) && (!feof(d->f_read))) return "ready"; |
---|
| 832 | else return "not ready"; |
---|
| 833 | } |
---|
| 834 | else if (strcmp(request, "write") == 0) |
---|
| 835 | { |
---|
| 836 | if (SI_LINK_W_OPEN_P(l)) return "ready"; |
---|
| 837 | else return "not ready"; |
---|
| 838 | } |
---|
| 839 | else return "unknown status request"; |
---|
| 840 | } |
---|
| 841 | |
---|
| 842 | // ---------------------------------------------------------------- |
---|
| 843 | // format |
---|
| 844 | // 1 int %d |
---|
| 845 | // 2 string <len> %s |
---|
| 846 | // 3 number |
---|
| 847 | // 4 bigint 4 %d or 3 <mpz_t> |
---|
| 848 | // 5 ring |
---|
| 849 | // 6 poly |
---|
| 850 | // 7 ideal |
---|
| 851 | // 8 matrix |
---|
| 852 | // 9 vector |
---|
| 853 | // 10 module |
---|
| 854 | // 11 command |
---|
| 855 | // 12 def <len> %s |
---|
| 856 | // 13 proc <len> %s |
---|
| 857 | // 14 list %d <elem1> .... |
---|
[8f650f3] | 858 | // 15 setring ....... |
---|
[8ed989] | 859 | // |
---|