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diff --git a/tinySIGCOMP/src/tcomp_message.h b/tinySIGCOMP/src/tcomp_message.h
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+++ b/tinySIGCOMP/src/tcomp_message.h
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+/*
+* Copyright (C) 2010-2011 Mamadou Diop.
+*
+* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]org>
+*	
+* This file is part of Open Source Doubango Framework.
+*
+* DOUBANGO 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.
+*	
+* DOUBANGO 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 DOUBANGO.
+*
+*/
+
+/**@file tcomp_message.h
+ * @brief  SIGCOMP message as per RFC 3320 subclause 7.
+ *
+ * @author Mamadou Diop <diopmamadou(at)yahoo.fr>
+ *
+
+ */
+#ifndef TCOMP_MESSAGE_H
+#define TCOMP_MESSAGE_H
+
+#include "tinysigcomp_config.h"
+#include "tcomp_buffer.h"
+#include "tcomp_nackinfo.h"
+#include "tsk_object.h"
+
+TCOMP_BEGIN_DECLS
+
+
+/**
+* SigComp Message Format as per RFC 3320 subclause 7.
+*/
+typedef struct tcomp_message_s
+{
+	TSK_DECLARE_OBJECT;
+
+	uint8_t headerSigComp; /**< SigComp header */
+
+	unsigned isOK:1; /**< Message validity. */
+	unsigned isNack:1; /**< If it's a NACK message. */
+	unsigned stream_based:1; /**< If it's stream message (e.g. TCP) */
+	const uint8_t* startPtr; /**< Message pointer. */
+	tsk_size_t totalSize; /**< The total message size. */
+	tsk_size_t header_size;	/**< The size of the message header */
+	
+	tcomp_buffer_handle_t* stateId; /**< */
+	
+	uint32_t bytecodes_destination; /**< */
+	tcomp_buffer_handle_t* remaining_sigcomp_buffer; /**< */
+	tcomp_buffer_handle_t* uploaded_UDVM_buffer; /**< */
+	tcomp_buffer_handle_t* ret_feedback_buffer; /**< */
+	
+	tcomp_nackinfo_t* nack_info; /**< */
+}
+tcomp_message_t;
+
+tcomp_message_t* tcomp_message_create(const void* input_ptr, tsk_size_t input_size, tsk_bool_t stream, int32_t *nack_code);
+
+TINYSIGCOMP_GEXTERN const tsk_object_def_t *tcomp_message_def_t;
+
+TCOMP_END_DECLS
+
+#endif /* TCOMP_MESSAGE_H */