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59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/*
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* buffer_chain.c
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*
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* Copyright 2013 Michael Zillgith
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*
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* This file is part of libIEC61850.
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*
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* libIEC61850 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* libIEC61850 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libIEC61850. If not, see <http://www.gnu.org/licenses/>.
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*
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* See COPYING file for the complete license text.
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*/
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#include "libiec61850_platform_includes.h"
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#include "buffer_chain.h"
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void
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BufferChain_init(BufferChain self, int length, int partLength, BufferChain nextPart, uint8_t* buffer)
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{
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self->length = length;
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self->partLength = partLength;
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self->partMaxLength = partLength;
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self->nextPart = nextPart;
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self->buffer = buffer;
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}
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void
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MemoryArea_initialize(MemoryArea* self, uint8_t* memory, int size)
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{
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self->memory = memory;
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self->size = size;
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self->currentPos = 0;
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}
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uint8_t*
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MemoryArea_getNextBlock(MemoryArea* self, int size)
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{
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if ((self->size - self->currentPos) >= size) {
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uint8_t* newBlock = self->memory + self->currentPos;
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self->currentPos += size;
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return newBlock;
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}
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else
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return NULL;
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}
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