string.c: Fix typos in comment.

[paraslash.git] / prebuffer_filter.c

diff --git a/prebuffer_filter.c b/prebuffer_filter.c
index e1b0390c8a0f1c7a76b1f1c4fd26b1d1ae106b4a..ad2373767a8b8df5793472b795ac3d5b85327b55 100644 (file)
--- a/prebuffer_filter.c
+++ b/prebuffer_filter.c
@@ -1,19 +1,14 @@
-/*
- * Copyright (C) 2009-2011 Andre Noll <maan@systemlinux.org>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
+/* Copyright (C) 2009 Andre Noll <maan@tuebingen.mpg.de>, see file COPYING. */
 
 /** \file prebuffer_filter.c Paraslash's prebuffering filter. */
 
 #include <regex.h>
-#include <stdbool.h>
+#include <lopsub.h>
 
 #include "para.h"
-#include "prebuffer_filter.cmdline.h"
+#include "filter_cmd.lsg.h"
 #include "list.h"
 #include "sched.h"
-#include "ggo.h"
 #include "buffer_tree.h"
 #include "filter.h"
 #include "string.h"
@@ -21,31 +16,28 @@
 
 /** Data specific to the prebuffer filter. */
 struct private_prebuffer_data {
-       /** The configuration data for this instance of the filter. */
-       struct prebuffer_filter_args_info *conf;
        /** Number of bytes prebuffered or -1 if no longer prebuffering. */
        int prebuffered;
        /** End of prebuffering period. */
        struct timeval barrier;
 };
 
-static void prebuffer_pre_select(struct sched *s, struct task *t)
+static void prebuffer_pre_select(struct sched *s, void *context)
 {
-       struct filter_node *fn = container_of(t, struct filter_node, task);
+       struct filter_node *fn = context;
        struct btr_node *btrn = fn->btrn;
        size_t iqs = btr_get_input_queue_size(btrn);
        struct private_prebuffer_data *ppd = fn->private_data;
-       struct prebuffer_filter_args_info *conf = ppd->conf;
        struct timeval diff;
 
-       t->error = 0;
        if (iqs == 0)
                return;
        if (ppd->barrier.tv_sec == 0) {
+               uint32_t duration = FILTER_CMD_OPT_UINT32_VAL(PREBUFFER,
+                       DURATION, fn->lpr);
                struct timeval tv;
-               PARA_INFO_LOG("prebuffer period %dms\n",
-                       conf->duration_arg);
-               ms2tv(conf->duration_arg, &tv);
+               PARA_INFO_LOG("prebuffer period %" PRIu32 "ms\n", duration);
+               ms2tv(duration, &tv);
                tv_add(&tv, now, &ppd->barrier);
        }
        if (tv_diff(&ppd->barrier, now, &diff) < 0)
@@ -58,78 +50,33 @@ static void prebuffer_close(struct filter_node *fn)
        free(fn->private_data);
 }
 
-static void prebuffer_post_select(__a_unused struct sched *s, struct task *t)
+static int prebuffer_post_select(__a_unused struct sched *s, void *context)
 {
-       struct filter_node *fn = container_of(t, struct filter_node, task);
+       struct filter_node *fn = context;
        struct btr_node *btrn = fn->btrn;
        size_t iqs = btr_get_input_queue_size(btrn);
        struct private_prebuffer_data *ppd = fn->private_data;
-       struct prebuffer_filter_args_info *conf = ppd->conf;
+       uint32_t size = FILTER_CMD_OPT_UINT32_VAL(PREBUFFER, SIZE, fn->lpr);
 
-       t->error = 0;
        if (ppd->barrier.tv_sec == 0)
-               return;
+               return 0;
        if (tv_diff(now, &ppd->barrier, NULL) < 0)
-               return;
-       if (iqs < conf->size_arg)
-               return;
-       btr_splice_out_node(btrn);
-       t->error = -E_PREBUFFER_SUCCESS;
-}
-
-static int prebuffer_parse_config(int argc, char **argv, void **config)
-{
-       struct prebuffer_filter_args_info *prebuffer_conf
-               = para_calloc(sizeof(*prebuffer_conf));
-       int ret = -E_PREBUFFER_SYNTAX;
-
-       if (prebuffer_cmdline_parser(argc, argv, prebuffer_conf))
-               goto err;
-       ret = -ERRNO_TO_PARA_ERROR(EINVAL);
-       if (prebuffer_conf->duration_arg < 0)
-               goto err;
-       if (prebuffer_conf->size_arg < 0)
-               goto err;
-       PARA_NOTICE_LOG("prebuffering %ims, %i bytes\n",
-               prebuffer_conf->duration_arg, prebuffer_conf->size_arg);
-       *config = prebuffer_conf;
-       return 1;
-err:
-       free(prebuffer_conf);
-       return ret;
+               return 0;
+       if (iqs < size)
+               return 0;
+       btr_splice_out_node(&fn->btrn);
+       return -E_PREBUFFER_SUCCESS;
 }
 
 static void prebuffer_open(struct filter_node *fn)
 {
        struct private_prebuffer_data *ppd = para_calloc(sizeof(*ppd));
-
-       ppd->conf = fn->conf;
        fn->private_data = ppd;
 }
 
-static void prebuffer_free_config(void *conf)
-{
-       prebuffer_cmdline_parser_free(conf);
-}
-
-/**
- * The init function of the prebuffer filter.
- *
- * \param f Pointer to the struct to initialize.
- */
-void prebuffer_filter_init(struct filter *f)
-{
-       struct prebuffer_filter_args_info dummy;
-
-       prebuffer_cmdline_parser_init(&dummy);
-       f->open = prebuffer_open;
-       f->close = prebuffer_close;
-       f->parse_config = prebuffer_parse_config;
-       f->free_config = prebuffer_free_config;
-       f->pre_select = prebuffer_pre_select;
-       f->post_select = prebuffer_post_select;
-       f->help = (struct ggo_help) {
-               .short_help = prebuffer_filter_args_info_help,
-               .detailed_help = prebuffer_filter_args_info_detailed_help
-       };
-}
+const struct filter lsg_filter_cmd_com_prebuffer_user_data = {
+       .open = prebuffer_open,
+       .close = prebuffer_close,
+       .pre_select = prebuffer_pre_select,
+       .post_select = prebuffer_post_select,
+};