mirror of
https://git.code.sf.net/p/quake/quakeforge
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87 lines
2 KiB
C
87 lines
2 KiB
C
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/*
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dot_flow.c
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"emit" flow graphs to dot (graphvis).
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Copyright (C) 2012 Bill Currie <bill@taniwha.org>
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Author: Bill Currie <bill@taniwha.org>
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Date: 2012/11/01
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include <QF/dstring.h>
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#include <QF/quakeio.h>
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#include <QF/va.h>
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#include "dags.h"
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#include "flow.h"
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#include "expr.h"
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#include "strpool.h"
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static void
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print_flownode (dstring_t *dstr, flownode_t *node, int level)
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{
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int indent = level * 2 + 2;
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int i;
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dasprintf (dstr, "%*s\"fn_%p\" [label=\"%d\"];\n", indent, "", node,
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node->id);
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for (i = 0; i < node->num_succ; i++)
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dasprintf (dstr, "%*s\"fn_%p\" -> \"fn_%p\";\n", indent, "", node,
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node->siblings[node->successors[i]]);
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}
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void
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print_flowgraph (flownode_t *flow, const char *filename)
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{
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unsigned i;
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dstring_t *dstr = dstring_newstr();
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dasprintf (dstr, "digraph flow_%p {\n", flow->siblings);
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dasprintf (dstr, " layout=dot; rankdir=TB;\n");
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for (i = 0; i < flow->num_siblings; i++)
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print_flownode (dstr, flow->siblings[i], 0);
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dasprintf (dstr, "}\n");
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if (filename) {
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QFile *file;
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file = Qopen (filename, "wt");
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Qwrite (file, dstr->str, dstr->size - 1);
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Qclose (file);
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} else {
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fputs (dstr->str, stdout);
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}
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dstring_delete (dstr);
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}
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