From c1b587842e553665fbffce079a5ff5a69c9c6a38 Mon Sep 17 00:00:00 2001
From: Andre Noll <maan@systemlinux.org>
Date: Sat, 6 Nov 2010 11:48:12 +0100
Subject: [PATCH] writers: Kill ->open.

Now that ->open is a dummy function for all writers, we may safely remove
this method from struct writer and kill the dummy functions.
---
 alsa_write.c   |  8 +-------
 file_write.c   |  5 -----
 oss_write.c    |  5 -----
 osx_write.c    |  5 -----
 write.h        | 10 ----------
 write_common.c |  1 -
 6 files changed, 1 insertion(+), 33 deletions(-)

diff --git a/alsa_write.c b/alsa_write.c
index 0bad2199..8676a451 100644
--- a/alsa_write.c
+++ b/alsa_write.c
@@ -35,7 +35,7 @@
 struct private_alsa_write_data {
 	/** The alsa handle */
 	snd_pcm_t *handle;
-	/** Determined and set by alsa_open(). */
+	/** Determined and set by alsa_init(). */
 	int bytes_per_frame;
 	/** The approximate maximum buffer duration in us. */
 	unsigned buffer_time;
@@ -142,11 +142,6 @@ static int alsa_init(struct private_alsa_write_data *pad,
 	return 1;
 }
 
-/* Open an instance of the alsa writer. */
-static void alsa_open(__a_unused struct writer_node *wn)
-{
-}
-
 static void alsa_write_pre_select(struct sched *s, struct task *t)
 {
 	struct writer_node *wn = container_of(t, struct writer_node, task);
@@ -303,7 +298,6 @@ void alsa_write_init(struct writer *w)
 	struct alsa_write_args_info dummy;
 
 	alsa_cmdline_parser_init(&dummy);
-	w->open = alsa_open;
 	w->close = alsa_close;
 	w->pre_select = alsa_write_pre_select;
 	w->post_select = alsa_write_post_select;
diff --git a/file_write.c b/file_write.c
index 149b48ef..7762d794 100644
--- a/file_write.c
+++ b/file_write.c
@@ -50,10 +50,6 @@ __must_check __malloc static char *random_filename(void)
 	return result;
 }
 
-static void file_write_open(__a_unused struct writer_node *wn)
-{
-}
-
 static int prepare_output_file(struct writer_node *wn)
 {
 	struct file_write_args_info *conf = wn->conf;
@@ -159,7 +155,6 @@ void file_write_init(struct writer *w)
 	struct file_write_args_info dummy;
 
 	file_cmdline_parser_init(&dummy);
-	w->open = file_write_open;
 	w->pre_select = file_write_pre_select;
 	w->post_select = file_write_post_select;
 	w->parse_config_or_die = file_write_parse_config_or_die;
diff --git a/oss_write.c b/oss_write.c
index 80777ea1..090f9905 100644
--- a/oss_write.c
+++ b/oss_write.c
@@ -202,10 +202,6 @@ out:
 		btr_remove_node(btrn);
 }
 
-static void oss_open(__a_unused struct writer_node *wn)
-{
-}
-
 __malloc static void *oss_parse_config_or_die(const char *options)
 {
 	struct oss_write_args_info *conf = para_calloc(sizeof(*conf));
@@ -232,7 +228,6 @@ void oss_write_init(struct writer *w)
 	struct oss_write_args_info dummy;
 
 	oss_cmdline_parser_init(&dummy);
-	w->open = oss_open;
 	w->close = oss_close;
 	w->pre_select = oss_pre_select;
 	w->post_select = oss_post_select;
diff --git a/osx_write.c b/osx_write.c
index 507ad912..ebfa4b3c 100644
--- a/osx_write.c
+++ b/osx_write.c
@@ -187,10 +187,6 @@ static OSStatus osx_callback(void * inClientData,
 #define ENDIAN_FLAGS 0
 #endif
 
-static void osx_write_open(__a_unused struct writer_node *wn)
-{
-}
-
 static int core_audio_init(struct writer_node *wn)
 {
 	struct private_osx_write_data *powd = para_calloc(sizeof(*powd));
@@ -371,7 +367,6 @@ void osx_write_init(struct writer *w)
 	struct osx_write_args_info dummy;
 
 	osx_cmdline_parser_init(&dummy);
-	w->open = osx_write_open;
 	w->close = osx_write_close;
 	w->pre_select = osx_write_pre_select;
 	w->post_select = osx_write_post_select;
diff --git a/write.h b/write.h
index da6f1e75..d5834b4c 100644
--- a/write.h
+++ b/write.h
@@ -50,16 +50,6 @@ struct writer {
 	 * This should free whatever was allocated by \ref parse_config_or_die().
 	 */
 	void (*free_config)(void *config);
-	/**
-	 * Open one instance of this writer.
-	 *
-	 * Perform any preparations needed to write the incoming stream.
-	 * Usually this function just allocates its private data structure and
-	 * stores a pointer to that structure in the ->private data of the
-	 * given parameter. This function must either succeed or terminate the
-	 * process.
-	 */
-	void (*open)(struct writer_node *);
 	/**
 	 * Prepare the fd sets for select.
 	 *
diff --git a/write_common.c b/write_common.c
index 5bfba37d..be7f9c22 100644
--- a/write_common.c
+++ b/write_common.c
@@ -92,7 +92,6 @@ void register_writer_node(struct writer_node *wn, struct btr_node *parent)
 		.handler = w->execute, .context = wn));
 	strcpy(wn->task.status, name);
 	free(name);
-	w->open(wn);
 	wn->task.post_select = w->post_select;
 	wn->task.pre_select = w->pre_select;
 	register_task(&wn->task);
-- 
2.30.2