Gbase 8s UDR memory management_ 03_ mi_ realloc

         function mi_realloc The role of is ： Reallocate the user memory block to the specified size , And return a pointer to the block .

grammar

void *mi_realloc(void *ptr, mi_integer size)

mi_integer size;

ptr Pointer to memory block .

size Number of bytes to reallocate .

On the client side LIBMI Valid in application ？	Valid in user-defined routines ？
yes	yes

usage

        mi_realloc() Function to change the size of user memory to the specified size , And use the current default memory duration . If ptr Parameter is NULL, that mi_realloc() Is a constructor of user memory , Its behavior is related to mi_alloc() identical .
         The delta function is going to be : Returns a pointer to the reallocated user memory . Convert this pointer to match the structure of the user-defined buffer or structure you allocated . When there is no need for mi_realloc() When allocating memory ,DataBlade API Modules can be used mi_free() To free the memory .

Return value

A null pointer
         Pointer to reallocated memory . Cast this pointer to match the user-defined buffer or structure for which memory is allocated .
        NULL Function cannot allocate memory .
        mi_realloc() The function will not throw when encountering a runtime error MI_Exception event . therefore , It will not cause the callback to start .