Merge 2610c05b5b95cc7036b3d6dfb894c6cfbdb68483 as Samba-4.0alpha16samba-4.0.0alpha16

1 files changed, 85 insertions, 0 deletions

diff --git a/source3/include/ctdb_packet.h b/source3/include/ctdb_packet.h
new file mode 100644
index 00000000000..026b23f90e4
--- /dev/null
+++ b/source3/include/ctdb_packet.h
@@ -0,0 +1,85 @@
+/*
+   Unix SMB/CIFS implementation.
+   CTDB 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 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/>.
+*/
+
+/*
+ * A ctdb_packet context is a wrapper around a bidirectional file descriptor,
+ * hiding the handling of individual requests.
+ */
+
+struct ctdb_packet_context;
+
+/*
+ * Initialize a ctdb_packet context. The fd is given to the ctdb_packet context, meaning
+ * that it is automatically closed when the ctdb_packet context is freed.
+ */
+struct ctdb_packet_context *ctdb_packet_init(TALLOC_CTX *mem_ctx, int fd);
+
+/*
+ * Pull data from the fd
+ */
+NTSTATUS ctdb_packet_fd_read(struct ctdb_packet_context *ctx);
+
+/*
+ * Sync read, wait for the next chunk
+ */
+NTSTATUS ctdb_packet_fd_read_sync_timeout(struct ctdb_packet_context *ctx, int timeout);
+
+/*
+ * Handle an incoming ctdb_packet:
+ * Return False if none is available
+ * Otherwise return True and store the callback result in *status
+ * Callback must either talloc_move or talloc_free buf
+ */
+bool ctdb_packet_handler(struct ctdb_packet_context *ctx,
+		    bool (*full_req)(const uint8_t *buf,
+				     size_t available,
+				     size_t *length,
+				     void *private_data),
+		    NTSTATUS (*callback)(uint8_t *buf, size_t length,
+					 void *private_data),
+		    void *private_data,
+		    NTSTATUS *status);
+
+/*
+ * How many bytes of outgoing data do we have pending?
+ */
+size_t ctdb_packet_outgoing_bytes(struct ctdb_packet_context *ctx);
+
+/*
+ * Push data to the fd
+ */
+NTSTATUS ctdb_packet_fd_write(struct ctdb_packet_context *ctx);
+
+/*
+ * Sync flush all outgoing bytes
+ */
+NTSTATUS ctdb_packet_flush(struct ctdb_packet_context *ctx);
+
+/*
+ * Send a list of DATA_BLOBs
+ *
+ * Example:  ctdb_packet_send(ctx, 2, data_blob_const(&size, sizeof(size)),
+ *			 data_blob_const(buf, size));
+ */
+NTSTATUS ctdb_packet_send(struct ctdb_packet_context *ctx, int num_blobs, ...);
+
+/*
+ * Get the ctdb_packet context's file descriptor
+ */
+int ctdb_packet_get_fd(struct ctdb_packet_context *ctx);