X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=write.c;h=a8e2429ce0f8a659492e3f29fcf4d504318fce4d;hp=8ddd51a9d4d8ef5b061159102f0b99390cc283d5;hb=4744d937c4160898d1fe151257606430750e580c;hpb=d7b4aa3835197ee906f13f515040e1cda6385544

diff --git a/write.c b/write.c
index 8ddd51a9..a8e2429c 100644
--- a/write.c
+++ b/write.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2011 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2012 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -8,7 +8,6 @@
 
 #include <regex.h>
 #include <sys/types.h>
-#include <stdbool.h>
 
 #include "para.h"
 #include "string.h"
@@ -22,6 +21,7 @@
 #include "write_common.h"
 #include "fd.h"
 #include "error.h"
+#include "version.h"
 
 INIT_WRITE_ERRLISTS;
 
@@ -164,17 +164,50 @@ __noreturn static void print_help_and_die(void)
 	exit(0);
 }
 
-static int main_btr(struct sched *s)
+/*
+ * Parse config and register a task for a writer node.
+ *
+ * \param arg Command line arguments.
+ * \param parent The new node will be a child of \a parent.
+ * \param wn The writer node.
+ *
+ * If arg is \p NULL, the OS-dependent default writer is used with no
+ * arguments.  The default writers are alsa for Linux, osx for OS X, oss for
+ * *BSD, and the file writer if the default writer is not supported.
+ *
+ * Once the writer configuration has been retrieved from the ->parse_config
+ * callback a writer node is created, its buffer tree node is added to the
+ * buffer tree as a child of the given parent.
+ *
+ * Finally, the new writer node's task structure is initialized and registered
+ * to the paraslash scheduler.
+ *
+ * \return Standard.
+ */
+static void setup_writer_node(const char *arg, struct btr_node *parent,
+		struct writer_node *wn, struct sched *s)
+{
+	if (arg)
+		wn->conf = check_writer_arg_or_die(arg, &wn->writer_num);
+	else {
+		wn->writer_num = DEFAULT_WRITER;
+		wn->conf = writers[DEFAULT_WRITER].parse_config_or_die("");
+	}
+	register_writer_node(wn, parent, s);
+}
+
+static int setup_and_schedule(void)
 {
 	int i, ret;
 	struct check_wav_task _cwt, *cwt = &_cwt;
 	struct writer_node *wns;
+	static struct sched s;
 
 	loglevel = get_loglevel_by_name(conf.loglevel_arg);
 	sit.btrn = btr_new_node(&(struct btr_node_description)
 		EMBRACE(.name = "stdin"));
 	stdin_set_defaults(&sit);
-	register_task(&sit.task);
+	register_task(&s, &sit.task);
 
 	cwt->state = CWS_NEED_HEADER;
 	cwt->min_iqs = WAV_HEADER_LEN;
@@ -185,29 +218,22 @@ static int main_btr(struct sched *s)
 	cwt->task.pre_select = check_wav_pre_select;
 	cwt->task.post_select = check_wav_post_select;
 	cwt->task.error = 0;
-	register_task(&cwt->task);
+	register_task(&s, &cwt->task);
 
-	ret = -E_WRITE_SYNTAX;
 	if (!conf.writer_given) {
-		i = 0;
 		wns = para_calloc(sizeof(*wns));
-		ret = setup_writer_node(NULL, cwt->btrn, wns);
-		if (ret < 0)
-			goto out;
+		setup_writer_node(NULL, cwt->btrn, wns, &s);
 		i = 1;
 	} else {
 		wns = para_calloc(conf.writer_given * sizeof(*wns));
-		for (i = 0; i < conf.writer_given; i++) {
-			ret = setup_writer_node(conf.writer_arg[i],
-				cwt->btrn, wns + i);
-			if (ret < 0)
-				goto out;
-		}
+		for (i = 0; i < conf.writer_given; i++)
+			setup_writer_node(conf.writer_arg[i], cwt->btrn,
+				wns + i, &s);
 	}
 
-	s->default_timeout.tv_sec = 10;
-	s->default_timeout.tv_usec = 50000;
-	ret = schedule(s);
+	s.default_timeout.tv_sec = 10;
+	s.default_timeout.tv_usec = 50000;
+	ret = schedule(&s);
 	if (ret >= 0) {
 		int j;
 		for (j = 0; j < i; j++) {
@@ -222,7 +248,6 @@ static int main_btr(struct sched *s)
 			}
 		}
 	}
-out:
 	for (i--; i >= 0; i--) {
 		struct writer_node *wn = wns + i;
 		struct writer *w = writers + wn->writer_num;
@@ -250,8 +275,7 @@ out:
  */
 int main(int argc, char *argv[])
 {
-	int ret = -E_WRITE_SYNTAX;
-	static struct sched s;
+	int ret;
 
 	writer_init();
 	write_cmdline_parser(argc, argv, &conf);
@@ -259,7 +283,7 @@ int main(int argc, char *argv[])
 	if (conf.help_given || conf.detailed_help_given)
 		print_help_and_die();
 
-	ret = main_btr(&s);
+	ret = setup_and_schedule();
 	if (ret < 0) {
 		PARA_ERROR_LOG("%s\n", para_strerror(-ret));
 		exit(EXIT_FAILURE);