From: Gerrit Renker <grenker@cscs.ch>
Date: Sun, 23 May 2010 05:43:04 +0000 (+0200)
Subject: dccp: integrate new fec interaction
X-Git-Tag: v0.4.3~13^2~12
X-Git-Url: http://git.tue.mpg.de/?a=commitdiff_plain;h=e1a07bd50c0e0bc393abf89a342ce53e10ccf576;p=paraslash.git

dccp: integrate new fec interaction

This updates the DCCP sender code to access and initialize the new fec_client
structs.

Particulars:
 * the open() method has been removed, to be supplied in a later patch;
 * the sender_client field became redundant, it is now available as fc->sc.
---

diff --git a/dccp_send.c b/dccp_send.c
index b13f719e..0657d11c 100644
--- a/dccp_send.c
+++ b/dccp_send.c
@@ -36,13 +36,10 @@
 #define DCCP_MAX_BYTES_PER_WRITE 1024
 
 static struct sender_status dccp_sender_status, *dss = &dccp_sender_status;
-static struct sender *self;
-
 
 struct dccp_fec_client {
 	struct fec_client_parms fcp;
 	struct fec_client *fc;
-	struct sender_client *sc;
 };
 
 static void dccp_pre_select(int *max_fileno, fd_set *rfds,
@@ -89,24 +86,12 @@ static void dccp_shutdown_clients(void)
 		dccp_shutdown_client(sc);
 }
 
-static int dccp_open(void *client, struct fec_client_parms **fcp)
-{
-	struct dccp_fec_client *dfc = client;
-
-	dfc->fcp.slices_per_group = 4;
-	dfc->fcp.data_slices_per_group = 3;
-	dfc->fcp.max_slice_bytes = 1472;
-	*fcp = &dfc->fcp;
-	return 1;
-}
-
-static int dccp_send_fec(char *buf, size_t len, void *private_data)
+static int dccp_send_fec(struct sender_client *sc, char *buf, size_t len)
 {
-	struct dccp_fec_client *dfc = private_data;
-	int ret = write_nonblock(dfc->sc->fd, buf, len, DCCP_MAX_BYTES_PER_WRITE);
+	int ret = write_nonblock(sc->fd, buf, len, DCCP_MAX_BYTES_PER_WRITE);
 
 	if (ret < 0)
-		dccp_shutdown_client(dfc->sc);
+		dccp_shutdown_client(sc);
 	return ret;
 }
 
@@ -140,8 +125,12 @@ static void dccp_post_select(fd_set *rfds, __a_unused fd_set *wfds)
 	}
 	dfc = para_calloc(sizeof(*dfc));
 	sc->private_data = dfc;
-	dfc->sc = sc;
-	/* XXX RESOLVED LATER vss_add_fec_client(self, dfc, &dfc->fc); */
+	dfc->fcp.slices_per_group	= 4;
+	dfc->fcp.data_slices_per_group	= 3;
+	dfc->fcp.max_slice_bytes	= DCCP_MAX_BYTES_PER_WRITE; /* FIXME */
+	dfc->fcp.init_fec		= NULL; /* FIXME */
+	dfc->fcp.send_fec		= dccp_send_fec;
+	dfc->fc = vss_add_fec_client(sc, &dfc->fcp);
 }
 
 static int dccp_com_on(__a_unused struct sender_command_data *scd)
@@ -212,8 +201,6 @@ void dccp_send_init(struct sender *s)
 
 	s->info = dccp_info;
 	s->send = NULL;
-	s->open = dccp_open;
-	s->send_fec = dccp_send_fec;
 	s->pre_select = dccp_pre_select;
 	s->post_select = dccp_post_select;
 	s->shutdown_clients = dccp_shutdown_clients;
@@ -231,5 +218,4 @@ void dccp_send_init(struct sender *s)
 	ret = generic_com_on(dss, IPPROTO_DCCP);
 	if (ret < 0)
 		PARA_ERROR_LOG("%s\n", para_strerror(-ret));
-	self = s;
 }