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//
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// Safe malloc with error file:line logging, using the FreeRTOS-provided malloc facility
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// The custom malloc implementation is safer than the poorly documented hacks provided by
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// newlib, written primarily for the desktop rather than embedded.
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//
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#ifndef MALLOC_SAFE_H
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#define MALLOC_SAFE_H
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/**
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* Malloc that prints error and restarts the system on failure.
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*/
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdbool.h>
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void *malloc_ck_do(size_t size, const char* file, uint32_t line) __attribute__((malloc,warn_unused_result));
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void *calloc_ck_do(size_t nmemb, size_t size, const char* file, uint32_t line) __attribute__((malloc,warn_unused_result));
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char *strdup_ck_do(const char *s, const char* file, uint32_t line) __attribute__((malloc,warn_unused_result));
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char *strndup_ck_do(const char *s, uint32_t len, const char* file, uint32_t line) __attribute__((malloc,warn_unused_result));
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#if DEBUG_MALLOC
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#define _malloc_trace(len, obj, file, line) do { PRINTF("~ malloc(%d) -> 0x%p at ", len, obj); PUTS(file); PUTCHAR(':'); PRINTF("%d\r\n", (int)line); } while (0)
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#define _free_trace(obj, file, line) do { PRINTF("~ free(0x%p) at ", obj); PUTS(file); PUTCHAR(':'); PRINTF("%d\r\n", (int)line); } while (0)
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#define malloc_ck(size) malloc_ck_do(size, __BASE_FILE__, __LINE__)
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#define calloc_ck(nmemb, size) calloc_ck_do(nmemb, size, __BASE_FILE__, __LINE__)
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#define strdup_ck(s) strdup_ck_do(s, __BASE_FILE__, __LINE__)
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#define strndup_ck(s, len) strndup_ck_do(s, (uint32_t)(len), __BASE_FILE__, __LINE__)
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#else
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#define _malloc_trace(len, obj, file, line)
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#define _free_trace(obj, file, line)
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#define malloc_ck(size) malloc_ck_do(size, "", 0)
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#define calloc_ck(nmemb, size) calloc_ck_do(nmemb, size, "", 0)
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#define strdup_ck(s) strdup_ck_do(s, "", 0)
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#define strndup_ck(s, len) strndup_ck_do(s, (uint32_t)(len), "", 0)
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#endif
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/**
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* Free an allocated object, and assign it to NULL.
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*/
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#define free_ck(obj) do { \
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_free_trace(obj, __BASE_FILE__, __LINE__); \
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if ((obj) != NULL) vPortFree((void *)(obj)); \
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obj = NULL; \
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} while (0)
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#endif // MALLOC_SAFE_H
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