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e8a319a277
If the write method of the CLA fails, the serailizers will now return early and this failure is handled properly by the TX task. In the case of the BPv6 serializer, we add the necessary flow control to the `write_bytes` macro, to prevent needing a conditional for every write* or serialize* statement. Signed-off-by: Felix Walter <felix.walter@d3tn.com>
69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR Apache-2.0
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#ifndef BUNDLE_V7_SERIALIZER_H_INCLUDED
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#define BUNDLE_V7_SERIALIZER_H_INCLUDED
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#include "bundle7/bundle7.h"
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#include "ud3tn/bundle.h"
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#include "ud3tn/crc.h"
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#include "ud3tn/result.h"
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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enum bundle7_serializer_status {
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BUNDLE_V7_SERIALIZER_STATUS_RUNNING,
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BUNDLE_V7_SERIALIZER_STATUS_FINISHED,
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BUNDLE_V7_SERIALIZER_STATUS_ERROR
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};
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struct bundle7_serializer {
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enum bundle7_serializer_status status;
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/*
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* Output buffer
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*
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* CBOR encoded data is written into this buffer.
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*/
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size_t filled;
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size_t written;
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uint8_t *buffer;
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/*
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* If raw bytes should be written directory to the output without
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* copying them into the output buffer, this pointer and size are
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* used to notify the serializer to use the raw bytes directly.
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*/
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uint8_t *raw;
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size_t raw_bytes;
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/*
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* CRC stream calculator
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*
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* "skip_crc" is a flag telling the serializer to jump over the
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* currently written bytes and not using them in the CRC calculus
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*/
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struct crc_stream crc;
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bool skip_crc;
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struct bundle_block_list *block_element;
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// Callbacks
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void (*callback)(struct bundle7_serializer *, struct bundle *);
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void (*next_callback)(struct bundle7_serializer *, struct bundle *);
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};
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/**
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* Creates CBOR-encoded byte stream of a Bundle v7
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*/
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enum ud3tn_result bundle7_serialize(
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struct bundle *bundle,
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enum ud3tn_result (*write)(void *cla_obj, const void *, const size_t),
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void *cla_obj);
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#endif /* BUNDLE_V7_SERIALIZER_H_INCLUDED */
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