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45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* Copyright 2024 Google LLC
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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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#pragma once
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#include "util/mbuf.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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//! NOTE: MBufIterator APIs are not thread safe
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typedef struct {
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MBuf *m;
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uint32_t data_index;
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} MBufIterator;
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//! Initializes an MBufIterator
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void mbuf_iterator_init(MBufIterator *iter, MBuf *m);
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//! Check if there is no data left in the MBuf chain
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bool mbuf_iterator_is_finished(MBufIterator *iter);
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//! Reads the next byte of data in the MBuf chain
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bool mbuf_iterator_read_byte(MBufIterator *iter, uint8_t *data);
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//! Writes the next byte of data in the MBuf chain
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bool mbuf_iterator_write_byte(MBufIterator *iter, uint8_t data);
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//! Gets the MBuf which the next byte of data is in
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MBuf *mbuf_iterator_get_current_mbuf(MBufIterator *iter);
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