motiejus/turbonss
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stable version

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fc_botelho
2005-01-17 17:58:43 +00:00
parent 1cfaf691bd
commit 69c177a494
5 changed files with 212 additions and 78 deletions
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14
src/graph.c
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@@ -10,7 +10,7 @@
//#define DEBUG
#include "debug.h"
static const char bitmask[8] = { 1, 1 << 1, 1 << 2, 1 << 3, 1 << 4, 1 << 5, 1 << 6, 1 << 7 };
static uint8 bitmask[8] = { 1, 1 << 1, 1 << 2, 1 << 3, 1 << 4, 1 << 5, 1 << 6, 1 << 7 };
#define GETBIT(array, i) (array[(i) / 8] & bitmask[(i) % 8])
#define SETBIT(array, i) (array[(i) / 8] |= bitmask[(i) % 8])
#define UNSETBIT(array, i) (array[(i) / 8] &= (~(bitmask[(i) % 8])))
@@ -52,7 +52,7 @@ graph_t *graph_new(uint32 nnodes, uint32 nedges)
void graph_destroy(graph_t *graph)
{
DEBUGP("Destroying graph\n");
DEBUGP("Destroying graph\n");
free(graph->edges);
free(graph->first);
free(graph->next);
@@ -103,7 +103,7 @@ void graph_add_edge(graph_t *g, uint32 v1, uint32 v2)
static int check_edge(graph_t *g, uint32 e, uint32 v1, uint32 v2)
{
DEBUGP("Checking edge %u %u looking for %u %u\n", g->edges[abs_edge(e, 0)], g->edges[abs_edge(e, 1)], v1, v2);
DEBUGP("Checking edge %u %u looking for %u %u\n", g->edges[abs_edge(e, 0)], g->edges[abs_edge(e, 1)], v1, v2);
if (g->edges[abs_edge(e, 0)] == v1 && g->edges[abs_edge(e, 1)] == v2) return 1;
if (g->edges[abs_edge(e, 0)] == v2 && g->edges[abs_edge(e, 1)] == v1) return 1;
return 0;
@@ -207,7 +207,7 @@ static void cyclic_del_edge(graph_t *g, uint32 v, char *deleted)
if (!degree1) return;
while(1)
{
DEBUGP("Deleting edge %u (%u->%u)\n", e, g->edges[abs_edge(e, 0)], g->edges[abs_edge(e, 1)]);
DEBUGP("Deleting edge %u (%u->%u)\n", e, g->edges[abs_edge(e, 0)], g->edges[abs_edge(e, 1)]);
SETBIT(deleted, abs_edge(e, 0));
v2 = g->edges[abs_edge(e, 0)];
@@ -217,7 +217,7 @@ static void cyclic_del_edge(graph_t *g, uint32 v, char *deleted)
degree1 = find_degree1_edge(g, v2, deleted, &e);
if (degree1)
{
DEBUGP("Inspecting vertex %u\n", v2);
DEBUGP("Inspecting vertex %u\n", v2);
v1 = v2;
}
else break;
@@ -240,7 +240,7 @@ int graph_is_cyclic(graph_t *g)
{
if (!(GETBIT(deleted, i)))
{
DEBUGP("Edge %u %u->%u was not deleted\n", i, g->edges[i], g->edges[i + g->nedges]);
DEBUGP("Edge %u %u->%u was not deleted\n", i, g->edges[i], g->edges[i + g->nedges]);
free(deleted);
return 1;
}
@@ -260,8 +260,10 @@ void graph_obtain_critical_nodes(graph_t *g) /* included -- Fabiano*/
uint32 v;
char *deleted = (char *)malloc((g->nedges*sizeof(char))/8+1);
memset(deleted, 0, g->nedges/8 + 1);
free(g->critical_nodes);
g->critical_nodes = (uint8 *)malloc((g->nnodes*sizeof(uint8))/8 + 1);
g->ncritical_nodes = 0;
memset(g->critical_nodes, 0, (g->nnodes*sizeof(uint8))/8 + 1);
DEBUGP("Looking for the 2-core in graph with %u vertices and %u edges\n", g->nnodes, g->nedges);
for (v = 0; v < g->nnodes; ++v)
{