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Initial output in the graphviz format

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This commit is contained in:
Pierre Pronchery 2008-06-03 08:58:54 +00:00
parent 5d68cc5a47
commit 9b4605bbb6
1 changed files with 107 additions and 0 deletions
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107
src/target/graph.c
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@ -16,7 +16,114 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "target.h" #include "target.h"
/* graph */ /* graph */
/* private */
/* variables */
static FILE * _fp;
static char * _filename;
static char * _function = NULL;
/* protected */
/* prototypes */
static int _graph_init(char const * outfile, int optlevel);
static int _graph_exit(void);
static int _graph_function_begin(char const * name);
static int _graph_function_call(char const * name);
static int _graph_function_end(void);
/* public */
/* variables */
TargetPlugin target_plugin =
{
NULL,
_graph_init,
_graph_exit,
NULL,
_graph_function_begin,
_graph_function_call,
_graph_function_end
};
/* protected */
/* functions */
/* graph_init */
static int _graph_init(char const * outfile, int optlevel)
{
#ifdef DEBUG
fprintf(stderr, "%s(\"%s\", %d)\n", __func__, outfile, optlevel);
#endif
if((_filename = strdup(outfile)) == NULL)
return error_set_code(1, "%s", strerror(errno));
if((_fp = fopen(outfile, "w")) == NULL)
{
free(_filename);
return error_set_code(1, "%s: %s", outfile, strerror(errno));
}
fprintf(_fp, "%s", "digraph G {\n");
return 0;
}
/* graph_exit */
static int _graph_exit(void)
{
int ret = 0;
#ifdef DEBUG
fprintf(stderr, "%s()\n", __func__);
#endif
fprintf(_fp, "%s", "}\n");
if(fclose(_fp) != 0)
ret |= error_set_code(1, "%s: %s", _filename, strerror(errno));
free(_filename);
free(_function);
return 0;
}
/* graph_function_begin */
static int _graph_function_begin(char const * name)
{
int ret = 0;
#ifdef DEBUG
fprintf(stderr, "%s(\"%s\")\n", __func__, name);
#endif
free(_function);
if((_function = strdup(name)) == NULL)
ret = error_set_code(1, "%s", strerror(errno));
return ret;
}
/* graph_function_call */
static int _graph_function_call(char const * name)
{
#ifdef DEBUG
fprintf(stderr, "%s(\"%s\")\n", __func__, name);
#endif
fprintf(_fp, "\t%s%s%s%s", _function, " => ", name, ";\n");
return 0;
}
/* graph_function_end */
static int _graph_function_end(void)
{
#ifdef DEBUG
fprintf(stderr, "%s()\n", __func__);
#endif
free(_function);
_function = NULL;
return 0;
}