1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
/* $Id: dot.c,v 1.51 2010/01/07 14:58:48 arif Exp $ $Revision: 1.51 $ */
/* vim:set shiftwidth=4 ts=8: */
/**********************************************************
* This software is part of the graphviz package *
* http://www.graphviz.org/ *
* *
* Copyright (c) 1994-2004 AT&T Corp. *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Corp. *
* *
* Information and Software Systems Research *
* AT&T Research, Florham Park NJ *
**********************************************************/
/*
* Written by Stephen North and Eleftherios Koutsofios.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gvc.h"
#include "gvio.h"
#ifndef WIN32_DLL
#ifdef GVDLL
__declspec(dllimport) boolean MemTest;
#else
#include "globals.h"
#endif
#endif
#ifdef WIN32_DLL
__declspec(dllimport) boolean MemTest;
#endif
#include <stdlib.h>
#include <time.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#if defined(HAVE_FENV_H) && defined(HAVE_FEENABLEEXCEPT)
/* _GNU_SOURCE is needed for feenableexcept to be defined in fenv.h on GNU
* systems. Presumably it will do no harm on other systems. */
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
# include <fenv.h>
#elif HAVE_FPU_CONTROL_H
# include <fpu_control.h>
#elif HAVE_SYS_FPU_H
# include <sys/fpu.h>
#endif
static GVC_t *Gvc;
static graph_t * G;
#ifndef WIN32
static void intr(int s)
{
/* if interrupted we try to produce a partial rendering before exiting */
if (G)
gvRenderJobs(Gvc, G);
/* Note that we don't call gvFinalize() so that we don't start event-driven
* devices like -Tgtk or -Txlib */
exit (gvFreeContext(Gvc));
}
#ifndef NO_FPERR
static void fperr(int s)
{
fprintf(stderr, "caught SIGFPE %d\n", s);
/* signal (s, SIG_DFL); raise (s); */
exit(1);
}
static void fpinit(void)
{
#if defined(HAVE_FENV_H) && defined(HAVE_FEENABLEEXCEPT)
int exc = 0;
# ifdef FE_DIVBYZERO
exc |= FE_DIVBYZERO;
# endif
# ifdef FE_OVERFLOW
exc |= FE_OVERFLOW;
# endif
# ifdef FE_INVALID
exc |= FE_INVALID;
# endif
feenableexcept(exc);
#ifdef HAVE_FESETENV
#ifdef FE_NONIEEE_ENV
fesetenv (FE_NONIEEE_ENV);
#endif
#endif
#elif HAVE_FPU_CONTROL_H
/* On s390-ibm-linux, the header exists, but the definitions
* of the masks do not. I assume this is temporary, but until
* there's a real implementation, it's probably safest to not
* adjust the FPU on this platform.
*/
# if defined(_FPU_MASK_IM) && defined(_FPU_MASK_DM) && defined(_FPU_MASK_ZM) && defined(_FPU_GETCW)
fpu_control_t fpe_flags = 0;
_FPU_GETCW(fpe_flags);
fpe_flags &= ~_FPU_MASK_IM; /* invalid operation */
fpe_flags &= ~_FPU_MASK_DM; /* denormalized operand */
fpe_flags &= ~_FPU_MASK_ZM; /* zero-divide */
/*fpe_flags &= ~_FPU_MASK_OM; overflow */
/*fpe_flags &= ~_FPU_MASK_UM; underflow */
/*fpe_flags &= ~_FPU_MASK_PM; precision (inexact result) */
_FPU_SETCW(fpe_flags);
# endif
#endif
}
#endif
#endif
static graph_t *create_test_graph(void)
{
#define NUMNODES 5
Agnode_t *node[NUMNODES];
Agraph_t *g;
int j, k;
char name[10];
/* Create a new graph */
#ifndef WITH_CGRAPH
aginit();
agsetiodisc(NULL, gvfwrite, gvferror);
g = agopen("new_graph", AGDIGRAPH);
#else /* WITH_CGRAPH */
g = agopen("new_graph", Agdirected,NIL(Agdisc_t *));
#endif /* WITH_CGRAPH */
/* Add nodes */
for (j = 0; j < NUMNODES; j++) {
sprintf(name, "%d", j);
#ifndef WITH_CGRAPH
node[j] = agnode(g, name);
#else /* WITH_CGRAPH */
node[j] = agnode(g, name, 1);
agbindrec(node[j], "Agnodeinfo_t", sizeof(Agnodeinfo_t), TRUE); //node custom data
#endif /* WITH_CGRAPH */
}
/* Connect nodes */
for (j = 0; j < NUMNODES; j++) {
for (k = j + 1; k < NUMNODES; k++) {
#ifndef WITH_CGRAPH
agedge(g, node[j], node[k]);
#else /* WITH_CGRAPH */
agedge(g, node[j], node[k], NULL, 1);
#endif /* WITH_CGRAPH */
}
}
return g;
}
int main(int argc, char **argv)
{
graph_t *prev = NULL;
#ifndef WITH_CGRAPH
#endif /* WITH_CGRAPH */
Gvc = gvContextPlugins(lt_preloaded_symbols, DEMAND_LOADING);
gvParseArgs(Gvc, argc, argv);
#ifndef WIN32
signal(SIGUSR1, gvToggle);
signal(SIGINT, intr);
#ifndef NO_FPERR
fpinit();
signal(SIGFPE, fperr);
#endif
#endif
if (MemTest) {
while (1) {
/* Create a test graph */
G = create_test_graph();
/* Perform layout and cleanup */
gvLayoutJobs(Gvc, G); /* take layout engine from command line */
gvFreeLayout(Gvc, G);
agclose (G);
}
}
else if ((G = gvPluginsGraph(Gvc))) {
gvLayoutJobs(Gvc, G); /* take layout engine from command line */
gvRenderJobs(Gvc, G);
}
else {
while ((G = gvNextInputGraph(Gvc))) {
#ifdef WITH_CGRAPH
#endif /* WITH_CGRAPH */
if (prev) {
gvFreeLayout(Gvc, prev);
agclose(prev);
}
gvLayoutJobs(Gvc, G); /* take layout engine from command line */
gvRenderJobs(Gvc, G);
prev = G;
}
}
gvFinalize(Gvc);
return (gvFreeContext(Gvc));
}
|
