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gencat/: abstract library data structure and its management (WIP)

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This commit is contained in:
Werner Almesberger 2012-07-11 22:27:22 -03:00
parent b34b0917dd
commit e62c717db1
9 changed files with 178 additions and 125 deletions
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2
gencat/Makefile
View File

@ -11,7 +11,7 @@
PREFIX ?= /usr/local
OBJS = gencat.o tree.o comp.o pdf.o
OBJS = gencat.o tree.o libs.o comp.o pdf.o
SHELL = /bin/bash
CFLAGS = -Wall -g

101
gencat/comp.c
View File

@ -9,47 +9,13 @@
* (at your option) any later version.
*/
#define _GNU_SOURCE /* for strcasecmp */
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <sys/types.h>
#include <dirent.h>
#include "util.h"
#include "comp.h"
struct entry {
struct name *names;
int units;
struct entry *next;
};
static struct lib {
const char *path;
struct entry *comps;
struct lib *next;
} *libs = NULL;
const char *lookup_sym(const char *name, const struct name **names, int *units)
{
const struct lib *lib;
const struct entry *e;
for (lib = libs; lib; lib = lib->next)
for (e = lib->comps; e; e = e->next)
if (!strcasecmp(e->names->s, name)) {
if (names)
*names = e->names;
if (units)
*units = e->units;
return lib->path;
}
return NULL;
}
#include "libs.h"
static const char *field(const char *s, int n)
@ -64,25 +30,9 @@ static const char *field(const char *s, int n)
}
static void add_name(struct entry *e, char *s)
{
char *nl;
struct name **p;
nl = strchr(s, '\n');
if (nl)
*nl = 0;
for (p = &e->names; *p; p = &(*p)->next);
*p = alloc_type(struct name);
(*p)->s = stralloc(s);
(*p)->next = NULL;
}
void add_lib(const char *path)
static void add_comp_lib(struct lib *lib, const char *path)
{
FILE *file;
struct lib *lib;
struct entry *e = NULL;
char buf[1024]; /* @@@ */
char *name, *spc;
@ -94,12 +44,6 @@ void add_lib(const char *path)
exit(1);
}
lib = alloc_type(struct lib);
lib->path = stralloc(path);
lib->comps = NULL;
lib->next = libs;
libs = lib;
while (fgets(buf, sizeof(buf), file)) {
if (!strncmp(buf, "ALIAS ", 6) && e)
add_name(e, buf+6);
@ -120,49 +64,20 @@ void add_lib(const char *path)
exit(1);
}
*spc = 0;
e = alloc_type(struct entry);
e->names = NULL;
add_name(e, name);
e->units = atoi(s);
e = new_entry(lib, atoi(s));
if (!e->units) {
fprintf(stderr, "invalid number of units in %s\n",
path);
exit(1);
}
e->next = lib->comps;
lib->comps = e;
add_name(e, name);
}
fclose(file);
}
void add_libdir(const char *path)
{
DIR *dir;
const struct dirent *de;
size_t len;
char *tmp;
dir = opendir(path);
if (!dir) {
perror(path);
exit(1);
}
while (1) {
de = readdir(dir);
if (!de)
break;
len = strlen(de->d_name);
if (len < 4)
continue;
if (strcmp(de->d_name+len-4, ".lib"))
continue;
if (asprintf(&tmp, "%s/%s", path, de->d_name) < 0) {
perror("asprintf");
exit(1);
}
add_lib(tmp);
}
closedir(dir);
}
struct lib comp_lib = {
.ext = ".lib",
.add_lib = add_comp_lib,
};

24
gencat/comp.h
View File

@ -1,24 +0,0 @@
/*
* comp.h - Component libraries
*
* Copyright 2012 by Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef COMP_H
#define COMP_H
struct name {
const char *s;
struct name *next;
};
const char *lookup_sym(const char *name, const struct name **names, int *units);
void add_lib(const char *path);
void add_libdir(const char *path);
#endif /* !COMP_H */

6
gencat/gencat.c
View File

@ -16,7 +16,7 @@
#include <string.h>
#include "tree.h"
#include "comp.h"
#include "libs.h"
#include "pdf.h"
#include "gencat.h"
@ -57,10 +57,10 @@ int main(int argc, char **argv)
opt_dump_comp = 1;
break;
case 'L':
add_libdir(optarg);
add_libdir(&comp_lib, optarg);
break;
case 'l':
add_lib(optarg);
add_lib(&comp_lib, optarg);
break;
case 'P':
postscript = 1;

114
gencat/libs.c Normal file
View File

@ -0,0 +1,114 @@
/*
* libc.h - Component or module libraries
*
* Copyright 2012 by Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#define _GNU_SOURCE /* for strcasecmp */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <dirent.h>
#include <assert.h>
#include "util.h"
#include "libs.h"
const char *lookup_sym(const struct lib *lib, const char *name,
const struct name **names, int *units)
{
const struct file *file;
const struct entry *e;
for (file = lib->files; file; file = file->next)
for (e = file->entries; e; e = e->next)
if (!strcasecmp(e->names->s, name)) {
if (names)
*names = e->names;
if (units)
*units = e->units;
return file->path;
}
return NULL;
}
void add_name(struct entry *e, char *s)
{
char *nl;
struct name **p;
nl = strchr(s, '\n');
if (nl)
*nl = 0;
for (p = &e->names; *p; p = &(*p)->next);
*p = alloc_type(struct name);
(*p)->s = stralloc(s);
(*p)->next = NULL;
}
struct entry *new_entry(struct lib *lib, int units)
{
struct entry *e;
e = alloc_type(struct entry);
e->names = NULL;
e->units = units;
e->next = lib->files->entries;
lib->files->entries = e;
return e;
}
void add_lib(struct lib *lib, const char *path)
{
struct file *file;
file = alloc_type(struct file);
file->path = stralloc(path);
file->entries = NULL;
file->next = lib->files;
lib->files = file;
lib->add_lib(lib, path);
}
void add_libdir(struct lib *lib, const char *path)
{
DIR *dir;
const struct dirent *de;
size_t len;
char *tmp;
assert(strlen(lib->ext) == 4);
dir = opendir(path);
if (!dir) {
perror(path);
exit(1);
}
while (1) {
de = readdir(dir);
if (!de)
break;
len = strlen(de->d_name);
if (len < 4)
continue;
if (strcmp(de->d_name+len-4, lib->ext))
continue;
if (asprintf(&tmp, "%s/%s", path, de->d_name) < 0) {
perror("asprintf");
exit(1);
}
add_lib(lib, tmp);
}
closedir(dir);
}

49
gencat/libs.h Normal file
View File

@ -0,0 +1,49 @@
/*
* libs.h - Component or module libraries
*
* Copyright 2012 by Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef LIBS_H
#define LIBS_H
struct name {
const char *s;
struct name *next;
};
struct entry {
struct name *names;
int units;
struct entry *next;
};
struct file {
const char *path;
struct entry *entries;
struct file *next;
};
struct lib {
const char *ext; /* file extension, ".lib" or ".mod" */
void (*add_lib)(struct lib *lib, const char *path);
struct file *files;
};
extern struct lib comp_lib;
const char *lookup_sym(const struct lib *lib, const char *name,
const struct name **names, int *units);
void add_name(struct entry *e, char *s);
struct entry *new_entry(struct lib *lib, int units);
void add_lib(struct lib *lib, const char *path);
void add_libdir(struct lib *lib, const char *path);
#endif /* !LIBS_H */

1
gencat/pdf.c
View File

@ -18,6 +18,7 @@
#include "util.h"
#include "gencat.h"
#include "tree.h"
#include "libs.h"
#include "pdf.h"

3
gencat/tree.c
View File

@ -16,6 +16,7 @@
#include <ctype.h>
#include "util.h"
#include "libs.h"
#include "tree.h"
@ -207,7 +208,7 @@ void set_libs(struct node *node)
{
while (node) {
if (!node->child) {
node->lib = lookup_sym(node->name,
node->lib = lookup_sym(&comp_lib, node->name,
&node->names, &node->units);
if (!node->lib) {
fprintf(stderr, "symbol %s not found\n",

3
gencat/tree.h
View File

@ -12,9 +12,6 @@
#ifndef TREE_H
#define TREE_H
#include "comp.h"
struct line {
char *s;
struct line *next;