X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=recv.h;h=f70cbbe8d61d233e6487e1452253162e09a6f6b6;hp=74ccf77d7115b5f77ce36de21522b62f78a456e2;hb=23b121a85984baa9252f4b4c0b8c4f186e394bb7;hpb=6bdac07456cb5872f824028912d1049883a9c21f

diff --git a/recv.h b/recv.h
index 74ccf77d..f70cbbe8 100644
--- a/recv.h
+++ b/recv.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2013 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -12,18 +12,29 @@
 struct receiver_node {
 	/** Points to the corresponding receiver. */
 	struct receiver *receiver;
-	/** The output buffer. */
-	char *buf;
-	/** The amount of bytes in \a buf. */
-	size_t loaded;
 	/** Receiver-specific data. */
 	void *private_data;
-	/** Pointer to the error member of the consumer. */
-	int *output_error;
 	/** Pointer to the configuration data for this instance. */
 	void *conf;
 	/** The task associated with this instance. */
 	struct task task;
+	/** The receiver node is always the root of the buffer tree. */
+	struct btr_node *btrn;
+	/** Each receiver node maintains a buffer pool for the received data. */
+	struct btr_pool *btrp;
+	/**
+	 * The file descriptor to receive the stream.
+	 *
+	 * The pre_select function of the receiver adds this file descriptor to
+	 * the set of file descriptors which are watched for readability or
+	 * writability, depending on the state of the connection (if any).
+	 *
+	 * If \a fd is readable, the post_select function of the receiver reads
+	 * data from this fd into the buffer pool area of \a btrp.
+	 *
+	 * \sa \ref receiver.
+	 */
+	int fd;
 };
 
 /**
@@ -54,6 +65,13 @@ struct receiver {
 	 * \a argc and \a argv.
 	 */
 	void *(*parse_config)(int argc, char **argv);
+	/**
+	 * Deallocate the configuration structure of a receiver node.
+	 *
+	 * This calls the receiver-specific cleanup function generated by
+	 * gengetopt.
+	 */
+	void (*free_config)(void *conf);
 	/**
 	 * Open one instance of the receiver.
 	 *
@@ -75,12 +93,6 @@ struct receiver {
 	 * \sa receiver_node.
 	 */
 	void (*close)(struct receiver_node *rn);
-	/**
-	 * Deactivate the receiver.
-	 *
-	 * Clean up what init has allocated.
-	 */
-	void (*shutdown)(void);
 	/**
 	 * Add file descriptors to fd_sets and compute timeout for select(2).
 	 *
@@ -96,38 +108,51 @@ struct receiver {
 	 * Evaluate the result from select().
 	 *
 	 * This hook gets called after the call to select(). It should check
-	 * all file descriptors which were added to any of the the fd sets
-	 * during the previous call to pre_select. According to the result, it
-	 * may then use any non-blocking I/O to establish a connection or to
+	 * all file descriptors which were added to any of the fd sets during
+	 * the previous call to pre_select. According to the result, it may
+	 * then use any non-blocking I/O to establish a connection or to
 	 * receive the audio data.
 	 *
 	 * \sa select(2), struct receiver.
 	 */
 	void (*post_select)(struct sched *s, struct task *t);
 
+	/** The two help texts of this receiver. */
 	struct ggo_help help;
+	/**
+	 * Answer a buffer tree query.
+	 *
+	 * This optional function pointer is used for inter node communications
+	 * of the buffer tree nodes. See \ref btr_command_handler for details.
+	 */
+	btr_command_handler execute;
 };
 
-
-/** \cond */
-extern void http_recv_init(struct receiver *r);
-#define HTTP_RECEIVER {.name = "http", .init = http_recv_init},
-extern void dccp_recv_init(struct receiver *r);
-#define DCCP_RECEIVER {.name = "dccp", .init = dccp_recv_init},
-extern void udp_recv_init(struct receiver *r);
-#define UDP_RECEIVER {.name = "udp", .init = udp_recv_init},
-
-extern struct receiver receivers[];
-/** \endcond */
-
 /** Define an array of all available receivers. */
 #define DEFINE_RECEIVER_ARRAY struct receiver receivers[] = { \
 	HTTP_RECEIVER \
 	DCCP_RECEIVER \
 	UDP_RECEIVER \
+	AFH_RECEIVER \
 	{.name = NULL}};
 
+/** Iterate over all available receivers. */
 #define FOR_EACH_RECEIVER(i) for (i = 0; receivers[i].name; i++)
 
+void recv_init(void);
 void *check_receiver_arg(char *ra, int *receiver_num);
 void print_receiver_helps(int detailed);
+int generic_recv_pre_select(struct sched *s, struct task *t);
+
+/** \cond receiver */
+extern void http_recv_init(struct receiver *r);
+#define HTTP_RECEIVER {.name = "http", .init = http_recv_init},
+extern void dccp_recv_init(struct receiver *r);
+#define DCCP_RECEIVER {.name = "dccp", .init = dccp_recv_init},
+extern void udp_recv_init(struct receiver *r);
+#define UDP_RECEIVER {.name = "udp", .init = udp_recv_init},
+#define AFH_RECEIVER /* not active by default */
+
+extern struct receiver receivers[];
+/** \endcond receiver */
+