DynamicMemory.h

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#ifndef DW_CORE_DYNAMIC_MEMORY_H_
#define DW_CORE_DYNAMIC_MEMORY_H_
 
#include <stddef.h>
#include <stdbool.h>
 
#ifdef DW_EXPORTS
#define DWALLOC_API_PUBLIC __attribute__((visibility("default")))
#else
#define DWALLOC_API_PUBLIC
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum dwDynamicMemoryError {
    DW_DYNAMIC_MEMORY_SUCCESS = 0,       
    DW_DYNAMIC_MEMORY_BAD_ALLOC,         
    DW_DYNAMIC_MEMORY_ALLOC_NOT_ALLOWED, 
    DW_DYNAMIC_MEMORY_FREE_NOT_ALLOWED   
} dwDynamicMemoryError;
 
typedef void* (*dwDynamicMemoryMallocCallback)(size_t sizeInByte, void* userData);
typedef void (*dwDynamicMemoryFreeCallback)(void* addr, void* userData);
typedef void (*dwDynamicMemoryErrorCallback)(dwDynamicMemoryError error, size_t lastRequestedSizeInByte, void* userData);
 
DWALLOC_API_PUBLIC
void dwDynamicMemory_initialize(dwDynamicMemoryMallocCallback mallocCallback,
                                dwDynamicMemoryFreeCallback freeCallback,
                                void* const userData);
 
DWALLOC_API_PUBLIC
void dwDynamicMemory_setErrorCallback(dwDynamicMemoryErrorCallback errorCallback, void* const userData);
 
DWALLOC_API_PUBLIC
void dwDynamicMemory_getCallbacks(dwDynamicMemoryMallocCallback* const mallocCallback,
                                  dwDynamicMemoryFreeCallback* const freeCallback,
                                  void** const userData);
 
typedef enum dwRuntimeMode {
    DW_MODE_INIT    = 0x0000, 
    DW_MODE_RUNTIME = 0x0001, 
    DW_MODE_CLEANUP = 0x0002, 
    DW_MODE_COUNT   = 3
} dwRuntimeMode;
 
DWALLOC_API_PUBLIC
bool dwDynamicMemory_setRuntimeMode(dwRuntimeMode const newMode);
 
DWALLOC_API_PUBLIC
bool dwDynamicMemory_getRuntimeMode(dwRuntimeMode* const mode);
 
DWALLOC_API_PUBLIC
void dwDynamicMemory_release(void);
 
DWALLOC_API_PUBLIC
void* dwDynamicMemory_malloc(size_t const size);
 
DWALLOC_API_PUBLIC
void dwDynamicMemory_free(void* const ptr);
 
#ifdef __cplusplus
}
#endif
#endif // DW_CORE_DYNAMIC_MEMORY_H_