63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
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/******************************************************************************
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*
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* Copyright (C) 2014 Google, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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#ifndef _PACKET_FRAGMENTER_H_
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#define _PACKET_FRAGMENTER_H_
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#include "allocator.h"
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#include "bt_types.h"
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#include "hci_layer.h"
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typedef void (*transmit_finished_cb)(BT_HDR *packet, bool all_fragments_sent);
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typedef void (*packet_reassembled_cb)(BT_HDR *packet);
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typedef void (*packet_fragmented_cb)(BT_HDR *packet, bool send_transmit_finished);
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typedef struct {
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// Called for every packet fragment.
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packet_fragmented_cb fragmented;
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// Called for every completely reassembled packet.
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packet_reassembled_cb reassembled;
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// Called when the fragmenter finishes sending all requested fragments,
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// but the packet has not been entirely sent.
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transmit_finished_cb transmit_finished;
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} packet_fragmenter_callbacks_t;
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typedef struct packet_fragmenter_t {
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// Initialize the fragmenter, specifying the |result_callbacks|.
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void (*init)(const packet_fragmenter_callbacks_t *result_callbacks);
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// Release all resources associated with the fragmenter.
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void (*cleanup)(void);
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// CHeck if Current fragmenter is ongoing
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BT_HDR *(*fragment_current_packet)(void);
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// Fragments |packet| if necessary and hands off everything to the fragmented callback.
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void (*fragment_and_dispatch)(BT_HDR *packet);
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// If |packet| is a complete packet, forwards to the reassembled callback. Otherwise
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// holds onto it until all fragments arrive, at which point the reassembled callback is called
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// with the reassembled data.
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void (*reassemble_and_dispatch)(BT_HDR *packet);
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} packet_fragmenter_t;
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const packet_fragmenter_t *packet_fragmenter_get_interface();
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#endif /* _PACKET_FRAGMENTER_H_ */
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