km
11bcc5e0c3
- Add static memory pool implementation (se050_mem_pool.c/h) - Replace all malloc/calloc with pool allocations - Replace all free with pool deallocations - Remove strdup usage (use fixed-size buffer instead) - Update I2C HAL to use fixed-size dev_path array - All 24 tests pass with static memory only Suitable for embedded environments (u-boot, ESP32) without heap.
107 lines
2.7 KiB
C
107 lines
2.7 KiB
C
/**
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* @file se050_mem_pool.h
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* @brief Static Memory Pool for Embedded Systems
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*
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* Replaces malloc/calloc with pre-allocated static pools.
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* Suitable for u-boot, ESP32, and other embedded environments.
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*/
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#ifndef SE050_MEM_POOL_H
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#define SE050_MEM_POOL_H
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#include <stdint.h>
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#include <stddef.h>
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/* Configuration: Pool sizes */
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#ifndef SE050_POOL_SESSION_COUNT
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#define SE050_POOL_SESSION_COUNT 4
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#endif
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#ifndef SE050_POOL_SCP03_COUNT
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#define SE050_POOL_SCP03_COUNT 4
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#endif
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#ifndef SE050_POOL_KEYSTORE_COUNT
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#define SE050_POOL_KEYSTORE_COUNT 2
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#endif
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#ifndef SE050_POOL_KEYSTORE_MAX_OBJECTS
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#define SE050_POOL_KEYSTORE_MAX_OBJECTS 8
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#endif
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#ifndef SE050_POOL_RNG_COUNT
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#define SE050_POOL_RNG_COUNT 2
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#endif
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#ifndef SE050_POOL_I2C_HAL_COUNT
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#define SE050_POOL_I2C_HAL_COUNT 2
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#endif
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/* Forward declarations */
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struct se050_session_ctx;
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struct se050_scp03_ctx;
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struct se050_keystore_ctx;
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struct se050_rng_ctx;
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struct se050_i2c_hal;
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/* ============================================================================
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* Memory Pool API
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* ============================================================================ */
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/**
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* @brief Initialize all memory pools
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*
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* Must be called before any other SE050 functions.
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*
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* @return 0 on success, -1 on error
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*/
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int se050_mem_pool_init(void);
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/**
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* @brief Cleanup all memory pools
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*
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* Zeroizes all allocated memory before freeing.
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*/
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void se050_mem_pool_cleanup(void);
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/* Session pool */
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struct se050_session_ctx *se050_session_alloc_pool(void);
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void se050_session_free_pool(struct se050_session_ctx *ctx);
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/* SCP03 pool */
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struct se050_scp03_ctx *se050_scp03_alloc_pool(void);
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void se050_scp03_free_pool(struct se050_scp03_ctx *ctx);
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/* Keystore pool */
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struct se050_keystore_ctx *se050_keystore_alloc_pool(void);
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void se050_keystore_free_pool(struct se050_keystore_ctx *ctx);
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/* RNG pool */
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struct se050_rng_ctx *se050_rng_alloc_pool(void);
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void se050_rng_free_pool(struct se050_rng_ctx *ctx);
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/* I2C HAL pool */
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struct se050_i2c_hal *se050_i2c_hal_alloc_pool(void);
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void se050_i2c_hal_free_pool(struct se050_i2c_hal *hal);
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/* ============================================================================
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* Debug/Statistics
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* ============================================================================ */
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/**
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* @brief Get pool statistics
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*/
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typedef struct {
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int total;
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int used;
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int free;
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} se050_pool_stats_t;
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void se050_mem_pool_stats(se050_pool_stats_t *session,
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se050_pool_stats_t *scp03,
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se050_pool_stats_t *keystore,
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se050_pool_stats_t *rng,
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se050_pool_stats_t *i2c_hal);
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#endif /* SE050_MEM_POOL_H */
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