server: Convert non-afs commands to lopsub.
[paraslash.git] / filter.c
index 79574db..8190189 100644 (file)
--- a/filter.c
+++ b/filter.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2014 Andre Noll <maan@tuebingen.mpg.de>
+ * Copyright (C) 2005 Andre Noll <maan@tuebingen.mpg.de>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
 #include "error.h"
 #include "version.h"
 
+/** Array of error strings. */
+DEFINE_PARA_ERRLIST;
+
 /** The list of all status items used by para_{server,audiod,gui}. */
 const char *status_item_list[] = {STATUS_ITEM_ARRAY};
 
+/**
+ * Dummy version which only contains NULL pointers.
+ *
+ * This is used by the amp filter which first tries to obtain the amplification
+ * value from an element in this array.
+ */
 char *stat_item_values[NUM_STAT_ITEMS] = {NULL};
 
-/** Initialize the array of errors for para_filter. */
-INIT_FILTER_ERRLISTS;
-
 /** The task that reads from stdin. */
 static struct stdin_task stdin_task_struct;
 /** pointer to the stdin task. */
@@ -52,7 +58,7 @@ __noreturn static void print_help_and_die(void)
 
        ggo_print_help(&h, d? GPH_STANDARD_FLAGS_DETAILED : GPH_STANDARD_FLAGS);
        print_filter_helps(d? GPH_MODULE_FLAGS_DETAILED : GPH_MODULE_FLAGS);
-       exit(0);
+       exit(EXIT_SUCCESS);
 }
 
 static int parse_config(void)
@@ -100,7 +106,7 @@ int main(int argc, char *argv[])
 {
        static struct sched s;
        int i, ret;
-       struct filter *f;
+       const struct filter *f;
        struct btr_node *parent;
        struct filter_node **fns;
 
@@ -127,7 +133,7 @@ int main(int argc, char *argv[])
                        goto out_cleanup;
                }
                fn->filter_num = ret;
-               f = filters + fn->filter_num;
+               f = filter_get(fn->filter_num);
                PARA_DEBUG_LOG("filter #%d: %s\n", i, f->name);
                fn->btrn = btr_new_node(&(struct btr_node_description)
                        EMBRACE(.name = f->name, .parent = parent,
@@ -136,7 +142,8 @@ int main(int argc, char *argv[])
                ti.pre_select = f->pre_select;
                ti.post_select = f->post_select;
                ti.context = fn;
-               f->open(fn);
+               if (f->open)
+                       f->open(fn);
                fn->task = task_register(&ti, &s);
                parent = fn->btrn;
        }
@@ -153,7 +160,7 @@ out_cleanup:
        for (i--; i >= 0; i--) {
                struct filter_node *fn = fns[i];
 
-               f = filters + fn->filter_num;
+               f = filter_get(fn->filter_num);
                if (f->close)
                        f->close(fn);
                btr_remove_node(&fn->btrn);