41c43f4805
* Toolbox: add seek to character stream method. UpdateUtils: reverse manifest iterator. UnitTests: more unit tests. * Target: bump API version. Updater: delete empty folders from manifest before resource deployment. * UnitTests: use manifest from unit_tests folder instead of global one * Make PVS happy * sector cache: allocate always * Better PVS config for manifest.c * PVS: Move exception outside of condition * PVS: remove confusing condition Co-authored-by: SG <who.just.the.doctor@gmail.com>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
#include "sector_cache.h"
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#include <stddef.h>
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#include <stdio.h>
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#include <string.h>
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#include <furi.h>
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#include <furi_hal_memory.h>
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#define SECTOR_SIZE 512
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#define N_SECTORS 8
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#define TAG "SDCache"
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typedef struct {
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uint32_t itr;
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uint32_t sectors[N_SECTORS];
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uint8_t sector_data[N_SECTORS][SECTOR_SIZE];
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} SectorCache;
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static SectorCache* cache = NULL;
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void sector_cache_init() {
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if(cache == NULL) {
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// TODO: tuneup allocation order, to place cache in mem pool (MEM2)
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cache = memmgr_alloc_from_pool(sizeof(SectorCache));
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}
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if(cache != NULL) {
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FURI_LOG_I(TAG, "Init");
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memset(cache, 0, sizeof(SectorCache));
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} else {
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FURI_LOG_E(TAG, "Init failed");
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}
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}
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uint8_t* sector_cache_get(uint32_t n_sector) {
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if(cache != NULL && n_sector != 0) {
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for(int sector_i = 0; sector_i < N_SECTORS; ++sector_i) {
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if(cache->sectors[sector_i] == n_sector) {
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return cache->sector_data[sector_i];
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}
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}
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}
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return NULL;
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}
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void sector_cache_put(uint32_t n_sector, uint8_t* data) {
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if(cache == NULL) return;
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cache->sectors[cache->itr % N_SECTORS] = n_sector;
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memcpy(cache->sector_data[cache->itr % N_SECTORS], data, SECTOR_SIZE);
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cache->itr++;
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}
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void sector_cache_invalidate_range(uint32_t start_sector, uint32_t end_sector) {
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if(cache == NULL) return;
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for(int sector_i = 0; sector_i < N_SECTORS; ++sector_i) {
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if((cache->sectors[sector_i] >= start_sector) &&
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(cache->sectors[sector_i] <= end_sector)) {
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cache->sectors[sector_i] = 0;
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}
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}
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} |