Steve Karg
c3a4c229fe
* Enable lcov coverage in unit testing via cmake. * fix pipeline build error * add compile options for unit test to silence some warnings * remove all BAC_TEST unit tests in src/bacnet/ folder. They are now in test/bacnet/ folders using ztest. * removed key.c - only used for unit test. * produce XML test result output for parsing * produce junit XML test result output * change lint workflow to quality * update readme badge for quality results Co-authored-by: Steve Karg <skarg@users.sourceforge.net>
122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
/**
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* @file
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* @author Steve Karg
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* @date 2008
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* @section LICENSE
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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 this program; if not, write to:
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* The Free Software Foundation, Inc.
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* 59 Temple Place - Suite 330
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* Boston, MA 02111-1307
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* USA.
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*
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* As a special exception, if other files instantiate templates or
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* use macros or inline functions from this file, or you compile
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* this file and link it with other works to produce a work based
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* on this file, this file does not by itself cause the resulting
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* work to be covered by the GNU General Public License. However
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* the source code for this file must still be made available in
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* accordance with section (3) of the GNU General Public License.
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*
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* This exception does not invalidate any other reasons why a work
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* based on this file might be covered by the GNU General Public
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* License.
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*
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* @section DESCRIPTION
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*
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* Memory copy functions for deeply embedded system. The functions
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* are used with a buffer, the buffer offset, the sizeof the buffer,
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* and the number of bytes to copy to the buffer.
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*/
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#include <stddef.h>
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#include <string.h>
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#include "bacnet/memcopy.h"
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/**
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* Tests to see if the number of bytes is available from an offset
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* given the maximum sizeof a buffer.
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*
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* @param offset - offset into a buffer
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* @param max - maximum sizeof a buffer
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* @param len - number of bytes to add to the buffer starting at offset.
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*
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* @return True if there is enough space to copy len bytes.
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*/
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bool memcopylen(size_t offset, size_t max, size_t len)
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{
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return ((offset + len) <= max);
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}
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#if defined(MEMCOPY_SIMPLE)
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/**
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* Copy len bytes from src to offset of dest if there is enough space
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* in a buffer of max bytes.
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*
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* @param dest - pointer to the destination buffer
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* @param src - pointer to the source buffer
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* @param offset - offset into the destination buffer
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* @param max - maximum sizeof the destination buffer
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* @param len - number of bytes to add to the destination buffer
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* starting at offset.
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*
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* @return returns zero if there is not enough space, or returns
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* the number of bytes copied.
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*/
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size_t memcopy(void *dest, void *src, size_t offset, size_t len, size_t max)
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{
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size_t i;
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size_t copy_len = 0;
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char *s1, *s2;
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s1 = dest;
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s2 = src;
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if (memcopylen(offset, max, len)) {
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for (i = 0; i < len; i++) {
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s1[offset + i] = s2[i];
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copy_len++;
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}
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}
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return copy_len;
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}
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#else
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/**
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* Copy len bytes from src to offset of dest if there is enough space
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* in a buffer of max bytes.
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*
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* @param dest - pointer to the destination buffer
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* @param src - pointer to the source buffer
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* @param offset - offset into the destination buffer
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* @param max - maximum sizeof the destination buffer
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* @param len - number of bytes to add to the destination buffer
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* starting at offset.
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*
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* @return returns zero if there is not enough space, or returns
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* the number of bytes copied.
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*/
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size_t memcopy(void *dest,
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void *src,
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size_t offset, /* where in dest to put the data */
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size_t len, /* amount of data to copy */
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size_t max)
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{ /* total size of destination */
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if (memcopylen(offset, max, len)) {
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memcpy(&((char *)dest)[offset], src, len);
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return (len);
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}
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return 0;
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}
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#endif
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