a much of multicasting stuff

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/src/mds-server/queued_interception.c b/src/mds-server/queued_interception.c
new file mode 100644
index 0000000..56d58c3
--- /dev/null
+++ b/src/mds-server/queued_interception.c
@@ -0,0 +1,78 @@
+/**
+ * mds — A micro-display server
+ * Copyright © 2014  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "queued_interception.h"
+
+#include <libmdsserver/macros.h>
+
+
+/**
+ * Calculate the buffer size need to marshal a queued interception
+ * 
+ * @param   this  The client information
+ * @return        The number of bytes to allocate to the output buffer
+ */
+size_t queued_interception_marshal_size(void)
+{
+  return sizeof(int64_t) + 2 * sizeof(int);
+}
+
+
+/**
+ * Marshals a queued interception
+ * 
+ * @param   this  The queued interception
+ * @param   data  Output buffer for the marshalled data
+ * @return        The number of bytes that have been written (everything will be written)
+ */
+size_t queued_interception_marshal(const queued_interception_t* restrict this, char* restrict data)
+{
+  buf_set_next(data, int64_t, this->priority);
+  buf_set_next(data, int, this->modifying);
+  buf_set_next(data, int, this->client->socket_fd);
+  return queued_interception_marshal_size();
+}
+
+
+/**
+ * Unmarshals a queued interception
+ * 
+ * @param   this  Memory slot in which to store the new queued interception
+ * @param   data  In buffer with the marshalled data
+ * @return        Zero on error, errno will be set accordingly, otherwise the number of read bytes.
+ */
+size_t queued_interception_unmarshal(queued_interception_t* restrict this, char* restrict data)
+{
+  this->client = NULL;
+  buf_get_next(data, int64_t, this->priority);
+  buf_get_next(data, int, this->modifying);
+  buf_get_next(data, int, this->socket_fd);
+  return queued_interception_marshal_size();
+}
+
+
+/**
+ * Pretend to unmarshal a queued interception
+ * 
+ * @param   data  In buffer with the marshalled data
+ * @return        The number of read bytes
+ */
+size_t queued_interception_unmarshal_skip(void)
+{
+  return queued_interception_marshal_size();
+}
+