r23410: Merge the core of the cluster code.

I'm 100% certain I've forgotten to merge something, but the main code
should be in. It's mainly in dbwrap_ctdb.c, ctdbd_conn.c and
messages_ctdbd.c.

There should be no changes to the non-cluster case, it does survive make
test on my laptop.

It survives some very basic tests with ctdbd enables, I did not do the
full test suite for clusters yet.

Phew...

Volker
(This used to be commit 15553d6327a3aecdd2b0b94a3656d04bf4106323)

1 files changed, 84 insertions, 0 deletions

diff --git a/source3/include/packet.h b/source3/include/packet.h
new file mode 100644
index 0000000000..9f36482705
--- /dev/null
+++ b/source3/include/packet.h
@@ -0,0 +1,84 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Packet handling
+   Copyright (C) Volker Lendecke 2007
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ * A packet context is a wrapper around a bidirectional file descriptor,
+ * hiding the handling of individual requests.
+ */
+
+struct packet_context;
+
+/*
+ * Initialize a packet context. The fd is given to the packet context, meaning
+ * that it is automatically closed when the packet context is freed.
+ */
+struct packet_context *packet_init(TALLOC_CTX *mem_ctx, int fd);
+
+/*
+ * Pull data from the fd
+ */
+NTSTATUS packet_fd_read(struct packet_context *ctx);
+
+/*
+ * Sync read, wait for the next chunk
+ */
+NTSTATUS packet_fd_read_sync(struct packet_context *ctx);
+
+/*
+ * Handle an incoming packet:
+ * Return False if none is available
+ * Otherwise return True and store the callback result in *status
+ */
+BOOL packet_handler(struct packet_context *ctx,
+		    BOOL (*full_req)(const struct data_blob *data,
+				     size_t *length,
+				     void *private_data),
+		    NTSTATUS (*callback)(const struct data_blob *data,
+					 void *private_data),
+		    void *private_data,
+		    NTSTATUS *status);
+
+/*
+ * How many bytes of outgoing data do we have pending?
+ */
+size_t packet_outgoing_bytes(struct packet_context *ctx);
+
+/*
+ * Push data to the fd
+ */
+NTSTATUS packet_fd_write(struct packet_context *ctx);
+
+/*
+ * Sync flush all outgoing bytes
+ */
+NTSTATUS packet_flush(struct packet_context *ctx);
+
+/*
+ * Send a list of DATA_BLOBs
+ *
+ * Example:  packet_send(ctx, 2, data_blob_const(&size, sizeof(size)),
+ *			 data_blob_const(buf, size));
+ */
+NTSTATUS packet_send(struct packet_context *ctx, int num_blobs, ...);
+
+/*
+ * Get the packet context's file descriptor
+ */
+int packet_get_fd(struct packet_context *ctx);