Introduce the vss task.
[paraslash.git] / filter_chain.c
index f0b6095..798d58e 100644 (file)
@@ -62,7 +62,7 @@ static void close_callbacks(struct filter_node *fn)
 
        list_for_each_entry_safe(fcb, tmp, &fn->callbacks, node) {
                PARA_INFO_LOG("closing %s filter callback\n",
-                       fn->filter->name);
+                       filters[fn->filter_num].name);
                close_filter_callback(fcb);
        }
 }
@@ -109,29 +109,30 @@ static void call_callbacks(struct filter_node *fn, char *inbuf, size_t inlen,
  */
 void filter_pre_select(__a_unused struct sched *s, struct task *t)
 {
-       struct filter_chain *fc = t->private_data;
+       struct filter_chain *fc = container_of(t, struct filter_chain, task);
        struct filter_node *fn;
        char *ib;
        size_t *loaded;
-       int conv, conv_total = 0;
+       int i, conv, conv_total = 0;
 
-       if (fc->output_error && *fc->output_error) {
-               t->ret =  *fc->output_error;
-               goto err_out;
+       if (fc->output_error && *fc->output_error < 0) {
+               t->error =  *fc->output_error;
+               return;
        }
 again:
        ib = fc->inbuf;
        loaded = fc->in_loaded;
        conv = 0;
-       list_for_each_entry(fn, &fc->filters, node) {
+       FOR_EACH_FILTER_NODE(fn, fc, i) {
+               struct filter *f = filters + fn->filter_num;
                if (*loaded && fn->loaded < fn->bufsize) {
                        size_t size, old_fn_loaded = fn->loaded;
 //                     PARA_DEBUG_LOG("fc %p loaded: %zd, calling %s convert\n",
 //                             fc, *loaded, fn->filter->name);
-                       t->ret = fn->filter->convert(ib, *loaded, fn);
-                       if (t->ret < 0)
-                               goto err_out;
-                       size = t->ret;
+                       t->error = f->convert(ib, *loaded, fn);
+                       if (t->error < 0)
+                               return;
+                       size = t->error;
                        call_callbacks(fn, ib, size, fn->buf + old_fn_loaded,
                                fn->loaded - old_fn_loaded);
                        *loaded -= size;
@@ -153,16 +154,13 @@ again:
 //             fc->eof, *fc->out_loaded, conv, conv_total);
        if (conv)
                goto again;
-       t->ret = 1;
        if (!*fc->input_error)
                return;
        if (*fc->out_loaded)
                return;
        if (*fc->in_loaded && conv_total)
                return;
-       t->ret = -E_FC_EOF;
-err_out:
-       fc->error = t->ret;
+       t->error = -E_FC_EOF;
 }
 
 /**
@@ -179,18 +177,19 @@ err_out:
  */
 void close_filters(struct filter_chain *fc)
 {
-       struct filter_node *fn, *tmp;
+       struct filter_node *fn;
+       int i;
 
        if (!fc)
                return;
        PARA_NOTICE_LOG("closing filter chain %p\n", fc);
-       list_for_each_entry_safe(fn, tmp, &fc->filters, node) {
+       FOR_EACH_FILTER_NODE(fn, fc, i) {
+               struct filter *f = filters + fn->filter_num;
                close_callbacks(fn);
-               PARA_INFO_LOG("closing %s filter\n", fn->filter->name);
-               fn->filter->close(fn);
-               list_del(&fn->node);
-               free(fn);
+               PARA_INFO_LOG("closing %s filter\n", f->name);
+               f->close(fn);
        }
+       free(fc->filter_nodes);
 }
 
 /*