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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "DGraph.h"
DGArc *newArc(DGNode *tl,DGNode *hd){
DGArc *ar=(DGArc *)malloc(sizeof(DGArc));
ar->tail=tl;
ar->head=hd;
return ar;
}
void arcShow(DGArc *ar){
DGNode *tl=(DGNode *)ar->tail,
*hd=(DGNode *)ar->head;
fprintf(stderr,"%d. |%s ->%s\n",ar->id,tl->name,hd->name);
}
DGNode *newNode(char *nm){
DGNode *nd=(DGNode *)malloc(sizeof(DGNode));
nd->attribute=0;
nd->color=0;
nd->inDegree=0;
nd->outDegree=0;
nd->maxInDegree=SMALL_BLOCK_SIZE;
nd->maxOutDegree=SMALL_BLOCK_SIZE;
nd->inArc=(DGArc **)malloc(nd->maxInDegree*sizeof(DGArc*));
nd->outArc=(DGArc **)malloc(nd->maxOutDegree*sizeof(DGArc*));
nd->name=strdup(nm);
nd->feat=NULL;
return nd;
}
void nodeShow(DGNode* nd){
fprintf( stderr,"%3d.%s: (%d,%d)\n", nd->id,nd->name,nd->inDegree,nd->outDegree);
/*
if(nd->verified==1) fprintf(stderr,"%ld.%s\t: usable.",nd->id,nd->name);
else if(nd->verified==0) fprintf(stderr,"%ld.%s\t: unusable.",nd->id,nd->name);
else fprintf(stderr,"%ld.%s\t: notverified.",nd->id,nd->name);
*/
}
DGraph* newDGraph(char* nm){
DGraph *dg=(DGraph *)malloc(sizeof(DGraph));
dg->numNodes=0;
dg->numArcs=0;
dg->maxNodes=BLOCK_SIZE;
dg->maxArcs=BLOCK_SIZE;
dg->node=(DGNode **)malloc(dg->maxNodes*sizeof(DGNode*));
dg->arc=(DGArc **)malloc(dg->maxArcs*sizeof(DGArc*));
dg->name=strdup(nm);
return dg;
}
int AttachNode(DGraph* dg, DGNode* nd) {
int i = 0, j;
unsigned len = 0;
DGNode **nds =NULL, *tmpnd=NULL;
DGArc **ar=NULL;
if (dg->numNodes == dg->maxNodes-1 ) {
dg->maxNodes += BLOCK_SIZE;
nds =(DGNode **) calloc(dg->maxNodes,sizeof(DGNode*));
memcpy(nds,dg->node,(dg->maxNodes-BLOCK_SIZE)*sizeof(DGNode*));
free(dg->node);
dg->node=nds;
}
len = strlen( nd->name);
for (i = 0; i < dg->numNodes; i++) {
tmpnd =dg->node[ i];
ar=NULL;
if ( strlen( tmpnd->name) != len ) continue;
if ( strncmp( nd->name, tmpnd->name, len) ) continue;
if ( nd->inDegree > 0 ) {
tmpnd->maxInDegree += nd->maxInDegree;
ar =(DGArc **) calloc(tmpnd->maxInDegree,sizeof(DGArc*));
memcpy(ar,tmpnd->inArc,(tmpnd->inDegree)*sizeof(DGArc*));
free(tmpnd->inArc);
tmpnd->inArc=ar;
for (j = 0; j < nd->inDegree; j++ ) {
nd->inArc[ j]->head = tmpnd;
}
memcpy( &(tmpnd->inArc[ tmpnd->inDegree]), nd->inArc, nd->inDegree*sizeof( DGArc *));
tmpnd->inDegree += nd->inDegree;
}
if ( nd->outDegree > 0 ) {
tmpnd->maxOutDegree += nd->maxOutDegree;
ar =(DGArc **) calloc(tmpnd->maxOutDegree,sizeof(DGArc*));
memcpy(ar,tmpnd->outArc,(tmpnd->outDegree)*sizeof(DGArc*));
free(tmpnd->outArc);
tmpnd->outArc=ar;
for (j = 0; j < nd->outDegree; j++ ) {
nd->outArc[ j]->tail = tmpnd;
}
memcpy( &(tmpnd->outArc[tmpnd->outDegree]),nd->outArc,nd->outDegree*sizeof( DGArc *));
tmpnd->outDegree += nd->outDegree;
}
free(nd);
return i;
}
nd->id = dg->numNodes;
dg->node[dg->numNodes] = nd;
dg->numNodes++;
return nd->id;
}
int AttachArc(DGraph *dg,DGArc* nar){
int arcId = -1;
int i=0,newNumber=0;
DGNode *head = nar->head,
*tail = nar->tail;
DGArc **ars=NULL,*probe=NULL;
/*fprintf(stderr,"AttachArc %ld\n",dg->numArcs); */
if ( !tail || !head ) return arcId;
if ( dg->numArcs == dg->maxArcs-1 ) {
dg->maxArcs += BLOCK_SIZE;
ars =(DGArc **) calloc(dg->maxArcs,sizeof(DGArc*));
memcpy(ars,dg->arc,(dg->maxArcs-BLOCK_SIZE)*sizeof(DGArc*));
free(dg->arc);
dg->arc=ars;
}
for(i = 0; i < tail->outDegree; i++ ) { /* parallel arc */
probe = tail->outArc[ i];
if(probe->head == head && probe->length == nar->length){
free(nar);
return probe->id;
}
}
nar->id = dg->numArcs;
arcId=dg->numArcs;
dg->arc[dg->numArcs] = nar;
dg->numArcs++;
head->inArc[ head->inDegree] = nar;
head->inDegree++;
if ( head->inDegree >= head->maxInDegree ) {
newNumber = head->maxInDegree + SMALL_BLOCK_SIZE;
ars =(DGArc **) calloc(newNumber,sizeof(DGArc*));
memcpy(ars,head->inArc,(head->inDegree)*sizeof(DGArc*));
free(head->inArc);
head->inArc=ars;
head->maxInDegree = newNumber;
}
tail->outArc[ tail->outDegree] = nar;
tail->outDegree++;
if(tail->outDegree >= tail->maxOutDegree ) {
newNumber = tail->maxOutDegree + SMALL_BLOCK_SIZE;
ars =(DGArc **) calloc(newNumber,sizeof(DGArc*));
memcpy(ars,tail->outArc,(tail->outDegree)*sizeof(DGArc*));
free(tail->outArc);
tail->outArc=ars;
tail->maxOutDegree = newNumber;
}
/*fprintf(stderr,"AttachArc: head->in=%d tail->out=%ld\n",head->inDegree,tail->outDegree);*/
return arcId;
}
void graphShow(DGraph *dg,int DetailsLevel){
int i=0,j=0;
fprintf(stderr,"%d.%s: (%d,%d)\n",dg->id,dg->name,dg->numNodes,dg->numArcs);
if ( DetailsLevel < 1) return;
for (i = 0; i < dg->numNodes; i++ ) {
DGNode *focusNode = dg->node[ i];
if(DetailsLevel >= 2) {
for (j = 0; j < focusNode->inDegree; j++ ) {
fprintf(stderr,"\t ");
nodeShow(focusNode->inArc[ j]->tail);
}
}
nodeShow(focusNode);
if ( DetailsLevel < 2) continue;
for (j = 0; j < focusNode->outDegree; j++ ) {
fprintf(stderr, "\t ");
nodeShow(focusNode->outArc[ j]->head);
}
fprintf(stderr, "---\n");
}
fprintf(stderr,"----------------------------------------\n");
if ( DetailsLevel < 3) return;
}
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