/** \file filter.c The stand-alone filter program. */
-#include "para.h"
+#include <regex.h>
+#include <stdbool.h>
+#include "para.h"
#include "filter.cmdline.h"
#include "list.h"
#include "sched.h"
#include "ggo.h"
+#include "buffer_tree.h"
#include "filter.h"
#include "string.h"
#include "stdin.h"
struct filter *f = filters + fn->filter_num;
f->open(fn);
PARA_INFO_LOG("opened %s filter\n", f->name);
- fc->outbuf = fn->buf;
+ fc->outbufp = &fn->buf;
fc->out_loaded = &fn->loaded;
}
}
+static void free_filter_confs(void)
+{
+ int i;
+ struct filter_node *fn;
+
+ FOR_EACH_FILTER_NODE(fn, fc, i)
+ free(fn->conf);
+}
+
static int init_filter_chain(void)
{
int i, ret;
if (!conf.filter_given)
return -E_NO_FILTERS;
fc->num_filters = conf.filter_given;
- fc->filter_nodes = para_malloc(fc->num_filters * sizeof(struct filter_node));
- fc->inbuf = sit->buf;
+ fc->filter_nodes = para_calloc(fc->num_filters * sizeof(struct filter_node));
+ fc->inbufp = &sit->buf;
fc->in_loaded = &sit->loaded;
fc->input_error = &sit->task.error;
fc->task.error = 0;
fc->output_error = &sot->task.error;
- fc->task.pre_select = filter_pre_select;
+ fc->task.post_select = filter_post_select;
sprintf(fc->task.status, "filter chain");
FOR_EACH_FILTER_NODE(fn, fc, i) {
open_filters();
return 1;
err:
+ free_filter_confs();
free(fc->filter_nodes);
return ret;
}
HANDLE_VERSION_FLAG("filter", conf);
if (conf.help_given || conf.detailed_help_given)
print_help_and_die();
+ loglevel = get_loglevel_by_name(conf.loglevel_arg);
if (!cf) {
char *home = para_homedir();
cf = make_message("%s/.paraslash/filter.conf", home);
.override = 0,
.initialize = 0,
.check_required = 0,
- .check_ambiguity = 0
+ .check_ambiguity = 0,
+ .print_errors = 1
};
if (filter_cmdline_parser_config_file(cf, &conf, ¶ms))
return -E_FILTER_SYNTAX;
return 1;
}
+/* TODO: support more than one filter, actually parse options */
+static int __noreturn main_btr(void)
+{
+ static struct sched s;
+ int i, ret;
+ struct filter *f;
+ struct btr_node *parent;
+
+ sit->btrn = btr_new_node("stdin", NULL, NULL, NULL);
+ stdin_set_defaults(sit);
+ register_task(&sit->task);
+
+ for (i = 0, parent = sit->btrn; i < conf.filter_given; i++) {
+ char *fa = conf.filter_arg[i];
+ struct filter_node *fn = para_calloc(sizeof(*fn));
+
+ ret = check_filter_arg(fa, &fn->conf);
+ if (ret < 0) {
+ free(fn);
+ goto err;
+ }
+ fn->filter_num = ret;
+ f = filters + fn->filter_num;
+ sprintf(fn->task.status, "%s", f->name);
+ PARA_DEBUG_LOG("filter #%d: %s\n", i, f->name);
+ fn->btrn = btr_new_node(f->name, parent, f->execute, fn);
+ fn->task.pre_select = f->pre_select;
+ fn->task.post_select = f->post_select;
+ f->open(fn);
+ register_task(&fn->task);
+ parent = fn->btrn;
+ }
+ sot->btrn = btr_new_node("stdout", parent, NULL, NULL);
+ stdout_set_defaults(sot);
+ register_task(&sot->task);
+
+ s.default_timeout.tv_sec = 1;
+ s.default_timeout.tv_usec = 0;
+ ret = schedule(&s);
+err:
+ if (ret < 0)
+ PARA_EMERG_LOG("%s\n", para_strerror(-ret));
+ exit(ret < 0? EXIT_FAILURE : EXIT_SUCCESS);
+}
+
/**
* The main function of para_filter.
*
int ret;
static struct sched s;
- stdin_set_defaults(sit);
- sit->buf = para_malloc(sit->bufsize),
-
- filter_init(filters);
+ filter_init();
ret = parse_config(argc, argv);
if (ret < 0)
goto out;
- loglevel = get_loglevel_by_name(conf.loglevel_arg);
+ if (conf.buffer_tree_given) {
+ ret = main_btr();
+ goto out;
+ }
+ stdin_set_defaults(sit);
+ sit->buf = para_malloc(sit->bufsize),
+
ret = init_filter_chain();
if (ret < 0)
goto out;
sit->output_error = &fc->task.error;
stdout_set_defaults(sot);
- sot->buf = fc->outbuf;
+ sot->bufp = fc->outbufp;
sot->loaded = fc->out_loaded;
sot->input_error = &fc->task.error;
register_task(&sit->task);
- register_task(&fc->task);
register_task(&sot->task);
+ register_task(&fc->task);
s.default_timeout.tv_sec = 1;
s.default_timeout.tv_usec = 0;
ret = schedule(&s);
+ free_filter_confs();
close_filters(fc);
out:
free(sit->buf);