examples/smpi/NAS/DGraph.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4
   5 #include "DGraph.h"
   6
   7 DGArc *newArc(DGNode *tl,DGNode *hd){
   8   DGArc *ar=(DGArc *)malloc(sizeof(DGArc));
   9   ar->tail=tl;
  10   ar->head=hd;
  11   return ar;
  12 }
  13 void arcShow(DGArc *ar){
  14   DGNode *tl=(DGNode *)ar->tail,
  15          *hd=(DGNode *)ar->head;
  16   fprintf(stderr,"%d. |%s ->%s\n",ar->id,tl->name,hd->name);
  17 }
  18
  19 DGNode *newNode(char *nm){
  20   DGNode *nd=(DGNode *)malloc(sizeof(DGNode));
  21   nd->attribute=0;
  22   nd->color=0;
  23   nd->inDegree=0;
  24   nd->outDegree=0;
  25   nd->maxInDegree=SMALL_BLOCK_SIZE;
  26   nd->maxOutDegree=SMALL_BLOCK_SIZE;
  27   nd->inArc=(DGArc **)malloc(nd->maxInDegree*sizeof(DGArc*));
  28   nd->outArc=(DGArc **)malloc(nd->maxOutDegree*sizeof(DGArc*));
  29   nd->name=strdup(nm);
  30   nd->feat=NULL;
  31   return nd;
  32 }
  33 void nodeShow(DGNode* nd){
  34   fprintf( stderr,"%3d.%s: (%d,%d)\n", nd->id,nd->name,nd->inDegree,nd->outDegree);
  35 /*
  36   if(nd->verified==1) fprintf(stderr,"%ld.%s\t: usable.",nd->id,nd->name);
  37   else if(nd->verified==0)  fprintf(stderr,"%ld.%s\t: unusable.",nd->id,nd->name);
  38   else  fprintf(stderr,"%ld.%s\t: notverified.",nd->id,nd->name);
  39 */
  40 }
  41
  42 DGraph* newDGraph(char* nm){
  43   DGraph *dg=(DGraph *)malloc(sizeof(DGraph));
  44   dg->numNodes=0;
  45   dg->numArcs=0;
  46   dg->maxNodes=BLOCK_SIZE;
  47   dg->maxArcs=BLOCK_SIZE;
  48   dg->node=(DGNode **)malloc(dg->maxNodes*sizeof(DGNode*));
  49   dg->arc=(DGArc **)malloc(dg->maxArcs*sizeof(DGArc*));
  50   dg->name=strdup(nm);
  51   return dg;
  52 }
  53
  54 int AttachNode(DGraph* dg, DGNode* nd) {
  55   int i=0,j,len=0;
  56   DGNode **nds =NULL, *tmpnd=NULL;
  57   DGArc **ar=NULL;
  58
  59   if (dg->numNodes == dg->maxNodes-1 ) {
  60     dg->maxNodes += BLOCK_SIZE;
  61     nds =(DGNode **) calloc(dg->maxNodes,sizeof(DGNode*));
  62     memcpy(nds,dg->node,(dg->maxNodes-BLOCK_SIZE)*sizeof(DGNode*));
  63     free(dg->node);
  64     dg->node=nds;
  65   }
  66
  67   len = strlen( nd->name);
  68   for (i = 0; i < dg->numNodes; i++) {
  69     tmpnd =dg->node[ i];
  70     ar=NULL;
  71     if ( strlen( tmpnd->name) != len ) continue;
  72     if ( strncmp( nd->name, tmpnd->name, len) ) continue;
  73     if ( nd->inDegree > 0 ) {
  74       tmpnd->maxInDegree += nd->maxInDegree;
  75       ar =(DGArc **) calloc(tmpnd->maxInDegree,sizeof(DGArc*));
  76       memcpy(ar,tmpnd->inArc,(tmpnd->inDegree)*sizeof(DGArc*));
  77       free(tmpnd->inArc);
  78       tmpnd->inArc=ar;
  79       for (j = 0; j < nd->inDegree; j++ ) {
  80         nd->inArc[ j]->head = tmpnd;
  81       }
  82       memcpy( &(tmpnd->inArc[ tmpnd->inDegree]), nd->inArc, nd->inDegree*sizeof( DGArc *));
  83       tmpnd->inDegree += nd->inDegree;
  84     }
  85     if ( nd->outDegree > 0 ) {
  86       tmpnd->maxOutDegree += nd->maxOutDegree;
  87       ar =(DGArc **) calloc(tmpnd->maxOutDegree,sizeof(DGArc*));
  88       memcpy(ar,tmpnd->outArc,(tmpnd->outDegree)*sizeof(DGArc*));
  89       free(tmpnd->outArc);
  90       tmpnd->outArc=ar;
  91       for (j = 0; j < nd->outDegree; j++ ) {
  92         nd->outArc[ j]->tail = tmpnd;
  93       }
  94       memcpy( &(tmpnd->outArc[tmpnd->outDegree]),nd->outArc,nd->outDegree*sizeof( DGArc *));
  95       tmpnd->outDegree += nd->outDegree;
  96     }
  97     free(nd);
  98     return i;
  99   }
 100   nd->id = dg->numNodes;
 101   dg->node[dg->numNodes] = nd;
 102   dg->numNodes++;
 103   return nd->id;
 104 }
 105
 106 int AttachArc(DGraph *dg,DGArc* nar){
 107   int  arcId = -1;
 108   int i=0,newNumber=0;
 109   DGNode  *head = nar->head,
 110           *tail = nar->tail;
 111   DGArc **ars=NULL,*probe=NULL;
 112   /*fprintf(stderr,"AttachArc %ld\n",dg->numArcs); */
 113   if ( !tail || !head ) return arcId;
 114   if ( dg->numArcs == dg->maxArcs-1 ) {
 115     dg->maxArcs += BLOCK_SIZE;
 116     ars =(DGArc **) calloc(dg->maxArcs,sizeof(DGArc*));
 117     memcpy(ars,dg->arc,(dg->maxArcs-BLOCK_SIZE)*sizeof(DGArc*));
 118     free(dg->arc);
 119     dg->arc=ars;
 120   }
 121   for(i = 0; i < tail->outDegree; i++ ) { /* parallel arc */
 122     probe = tail->outArc[ i];
 123     if(probe->head == head && probe->length == nar->length){
 124       free(nar);
 125       return probe->id;
 126     }
 127   }
 128
 129   nar->id = dg->numArcs;
 130   arcId=dg->numArcs;
 131   dg->arc[dg->numArcs] = nar;
 132   dg->numArcs++;
 133
 134   head->inArc[ head->inDegree] = nar;
 135   head->inDegree++;
 136   if ( head->inDegree >= head->maxInDegree ) {
 137     newNumber = head->maxInDegree + SMALL_BLOCK_SIZE;
 138     ars =(DGArc **) calloc(newNumber,sizeof(DGArc*));
 139     memcpy(ars,head->inArc,(head->inDegree)*sizeof(DGArc*));
 140     free(head->inArc);
 141     head->inArc=ars;
 142     head->maxInDegree = newNumber;
 143   }
 144   tail->outArc[ tail->outDegree] = nar;
 145   tail->outDegree++;
 146   if(tail->outDegree >= tail->maxOutDegree ) {
 147     newNumber = tail->maxOutDegree + SMALL_BLOCK_SIZE;
 148     ars =(DGArc **) calloc(newNumber,sizeof(DGArc*));
 149     memcpy(ars,tail->outArc,(tail->outDegree)*sizeof(DGArc*));
 150     free(tail->outArc);
 151     tail->outArc=ars;
 152     tail->maxOutDegree = newNumber;
 153   }
 154 /*fprintf(stderr,"AttachArc: head->in=%d tail->out=%ld\n",head->inDegree,tail->outDegree);*/
 155   return arcId;
 156 }
 157
 158 void graphShow(DGraph *dg,int DetailsLevel){
 159   int i=0,j=0;
 160   fprintf(stderr,"%d.%s: (%d,%d)\n",dg->id,dg->name,dg->numNodes,dg->numArcs);
 161   if ( DetailsLevel < 1) return;
 162   for (i = 0; i < dg->numNodes; i++ ) {
 163     DGNode *focusNode = dg->node[ i];
 164     if(DetailsLevel >= 2) {
 165       for (j = 0; j < focusNode->inDegree; j++ ) {
 166         fprintf(stderr,"\t ");
 167         nodeShow(focusNode->inArc[ j]->tail);
 168       }
 169     }
 170     nodeShow(focusNode);
 171     if ( DetailsLevel < 2) continue;
 172     for (j = 0; j < focusNode->outDegree; j++ ) {
 173       fprintf(stderr, "\t ");
 174       nodeShow(focusNode->outArc[ j]->head);
 175     }
 176     fprintf(stderr, "---\n");
 177   }
 178   fprintf(stderr,"----------------------------------------\n");
 179   if ( DetailsLevel < 3) return;
 180 }