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add check 8 bit, can not work

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This commit is contained in:
pikastech 2021-11-16 10:09:11 +08:00
parent 9d16c03311
commit 9a14d1bc58
2 changed files with 22 additions and 0 deletions
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19
src/dataMemory.c
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@ -145,6 +145,11 @@ void* pool_malloc(Pool* pool, uint32_t size) {
uint8_t found_first_free = 0;
for (uint32_t block_index = pool->block_index_min_free;
block_index < block_index_max; block_index++) {
/* 8 bit is not free */
if(0xFF == bitmap_getByte(pool->bitmap, block_index)){
// block_index = aline_by(block_index, 8) - 1;
// continue;
}
/* found a free block */
if (0 == bitmap_get(pool->bitmap, block_index)) {
/* save the first free */
@ -184,6 +189,13 @@ void pool_free(Pool* pool, void* mem, uint32_t size) {
return;
}
uint32_t aline_by(uint32_t size, uint32_t aline){
if(size == 0){
return 0;
}
return ((size - 1)/aline + 1) * aline;
}
BitMap bitmap_init(uint32_t size) {
BitMap mem_bit_map =
(BitMap)__platformMalloc(((size - 1) / 8 + 1) * sizeof(char));
@ -208,6 +220,13 @@ void bitmap_set(BitMap bitmap, uint32_t index, uint8_t bit) {
return;
}
uint8_t bitmap_getByte(BitMap bitmap, uint32_t index) {
uint32_t index_byte = (index) / 8;
uint8_t byte;
byte = bitmap[index_byte];
return byte;
}
uint8_t bitmap_get(BitMap bitmap, uint32_t index) {
uint32_t index_byte = (index) / 8;
uint8_t index_bit = (index) % 8;

3
src/dataMemory.h
View File

@ -54,9 +54,12 @@ uint16_t pikaMemNow(void);
uint16_t pikaMemMax(void);
void pikaMemMaxReset(void);
uint32_t aline_by(uint32_t size, uint32_t aline);
BitMap bitmap_init(uint32_t size);
void bitmap_set(BitMap bitmap, uint32_t index, uint8_t bit);
uint8_t bitmap_get(BitMap bitmap, uint32_t index);
uint8_t bitmap_getByte(BitMap bitmap, uint32_t index);
void bitmap_deinit(BitMap bitmap);
Pool pool_init(uint32_t size, uint8_t aline);