1 files changed, 99 insertions, 0 deletions
diff --git a/source4/libcli/composite/composite.h b/source4/libcli/composite/composite.h
new file mode 100644
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+++ b/source4/libcli/composite/composite.h
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+/* 
+   Unix SMB/CIFS implementation.
+
+   composite request interfaces
+
+   Copyright (C) Andrew Tridgell 2005
+   
+   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/>.
+*/
+
+#ifndef __COMPOSITE_H__
+#define __COMPOSITE_H__
+
+#include "libcli/raw/interfaces.h"
+
+struct tevent_context;
+
+/*
+  this defines the structures associated with "composite"
+  requests. Composite requests are libcli requests that are internally
+  implemented as multiple async calls, but can be treated as a
+  single call via these composite calls. The composite calls are
+  particularly designed to be used in async applications.
+  you can also stack multiple level of composite call
+*/
+
+/*
+  a composite call moves between the following 3 states.
+*/
+enum composite_state { COMPOSITE_STATE_INIT,         /* we are creating the request */
+		       COMPOSITE_STATE_IN_PROGRESS,  /* the request is in the outgoing socket Q */
+		       COMPOSITE_STATE_DONE,         /* the request is received by the caller finished */
+		       COMPOSITE_STATE_ERROR };      /* a packet or transport level error has occurred */
+
+/* the context of one "composite" call */
+struct composite_context {
+	/* the external state - will be queried by the caller */
+	enum composite_state state;
+
+	/* a private pointer for use by the composite function
+	   implementation */
+	void *private_data;
+
+	/* status code when finished */
+	NTSTATUS status;
+
+	/* the event context we are using */
+	struct tevent_context *event_ctx;
+
+	/* information on what to do on completion */
+	struct {
+		void (*fn)(struct composite_context *);
+		void *private_data;
+	} async;
+
+	bool used_wait;
+};
+
+struct smbcli_request;
+struct smb2_request;
+struct nbt_name_request;
+
+struct composite_context *composite_create(TALLOC_CTX *mem_ctx, struct tevent_context *ev);
+bool composite_nomem(const void *p, struct composite_context *ctx);
+void composite_continue(struct composite_context *ctx,
+				 struct composite_context *new_ctx,
+				 void (*continuation)(struct composite_context *),
+				 void *private_data);
+void composite_continue_smb(struct composite_context *ctx,
+				     struct smbcli_request *new_req,
+				     void (*continuation)(struct smbcli_request *),
+				     void *private_data);
+void composite_continue_smb2(struct composite_context *ctx,
+				      struct smb2_request *new_req,
+				      void (*continuation)(struct smb2_request *),
+				      void *private_data);
+void composite_continue_nbt(struct composite_context *ctx,
+				     struct nbt_name_request *new_req,
+				     void (*continuation)(struct nbt_name_request *),
+				     void *private_data);
+bool composite_is_ok(struct composite_context *ctx);
+void composite_done(struct composite_context *ctx);
+void composite_error(struct composite_context *ctx, NTSTATUS status);
+NTSTATUS composite_wait(struct composite_context *c);
+NTSTATUS composite_wait_free(struct composite_context *c);
+
+
+#endif /* __COMPOSITE_H__ */