X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=write.h;h=f4c54ca31de240b13056e684986483a05c980bf0;hp=5f8ab3ab142eff3cbd89189ede339fd4ef413b40;hb=41f13bf6cac519b46ed24892e2c84384ef5dc500;hpb=0f8ed21f8532a276d4f24b01638fd303fd57f0ed

diff --git a/write.h b/write.h
index 5f8ab3ab..f4c54ca3 100644
--- a/write.h
+++ b/write.h
@@ -25,12 +25,16 @@ enum writer_enum {WRITER_ENUM};
  * decbribes one running instance of a writer
  */
 struct writer_node {
-/** points to the writer structure associated with this node */
+	/** points to the writer structure associated with this node */
 	struct writer *writer;
-/** writer-specific data */
+	/** writer-specific data */
 	void *private_data;
-/** send that many bytes in one go */
+	/** send that many bytes in one go */
 	int chunk_bytes;
+	struct task task;
+	struct writer_node_group *wng;
+	/** the writer-specific configuration of this node */
+	void *conf;
 };
 
 /** describes one supported writer */
@@ -43,6 +47,18 @@ struct writer {
  *
  */
 void (*init)(struct writer *w);
+/**
+ *
+ *
+ * the command line parser of the writer
+ *
+ * It should check whether the command line options given by \a options are
+ * valid.  On success, it should return a pointer to the writer-specific
+ * configuration data determined by \a options.  Note that this might be called
+ * more than once with different values of \a options.
+ *
+ */
+	void * (*parse_config)(char *options);
 /**
  *
  * open one instance of this writer
@@ -62,6 +78,8 @@ int (*open)(struct writer_node *);
  *
  */
 int (*write)(char *data, size_t nbytes, struct writer_node *);
+void (*pre_select)(struct sched *s, struct task *t);
+void (*post_select)(struct sched *s, struct task *t);
 /**
  * close one instance of the writer
  *
@@ -81,16 +99,20 @@ void (*shutdown)(struct writer_node *);
  * describes a set of writer nodes that all write the same stream.
  */
 struct writer_node_group {
-/** number of nodes belonging to this group */
-unsigned num_writers;
-/** array of pointers to the corresponding writer nodes */
-struct writer_node *writer_nodes;
-/** keeps track of how many bytes have been written by each node */
-int *written;
-/** the maximum of the chunk_bytes values of the writer nodes in this group */
-size_t max_chunk_bytes;
-/** non-zero if end of file was encountered */
-int eof;
+	/** number of nodes belonging to this group */
+	unsigned num_writers;
+	/** array of pointers to the corresponding writer nodes */
+	struct writer_node *writer_nodes;
+	/** keeps track of how many bytes have been written by each node */
+	int *written;
+	/** the maximum of the chunk_bytes values of the writer nodes in this group */
+	size_t max_chunk_bytes;
+	/** non-zero if end of file was encountered */
+	int *input_eof;
+	int eof;
+	char *buf;
+	size_t *loaded;
+	struct task task;
 };
 
 /** loop over each writer node in a writer group */