mem_alloc2(): New macro. This is a variant of mem_alloc() that
returns the allocated size, which is equal to or greater than
the requested size.
mem_alloc_func(): Add the output parameter *size for the allocated size.
When it is set, adjust the parameter passed to mem_heap_alloc().
rec_copy_prefix_to_buf_old(), rec_copy_prefix_to_buf(): Use mem_alloc2()
instead of mem_alloc().
UNIV_MEM_ASSERT_RW(): New macro, to check that the contents of a memory
area is defined.
UNIV_MEM_ASSERT_W(): New macro, to check that a memory area is writable.
UNIV_MEM_ASSERT_AND_FREE(): New macro, to check that the memory is
writable before declaring it free (unwritable). This replaces UNIV_MEM_FREE()
in many places.
mem_init_buf(): Declare the memory undefined.
mem_erase_buf(): Declare the memory freed.
freed with UNIV_MEM_FREE(). Before this change, the memory
freed by mem_heap_empty() was not completely flagged free
in UNIV_DEBUG_VALGRIND builds. After this change, Valgrind
will hopefully catch all errors caught by UNIV_MEM_DEBUG.
mem_heap_zalloc() and mem_zalloc(), because calloc() in the C runtime
library takes two size parameters, not one.
mem_heap_zalloc(): Add debug assertions. Document that the return value
is never NULL.
functions.
ut_malloc_low(): Flag the block with UNIV_MEM_ALLOC(). Do not flag the
block with UNIV_MEM_FREE() in ut_free(), because it would cause bogus
Valgrind warnings in the underlying memory allocator.
mem_pool_create(): Flag the data area with UNIV_MEM_FREE().
mem_pool_fill_free_list(): Flag the area header with UNIV_MEM_ALLOC().
mem_area_alloc(): Flag the data area with UNIV_MEM_ALLOC().
mem_area_free(): Flag the data area with UNIV_MEM_FREE().
mem_heap_alloc(): Flag the buffer with UNIV_MEM_ALLOC().
mem_heap_block_free(): Flag the block with UNIV_MEM_FREE().
mem_heap_free_top(): Flag the block with UNIV_MEM_FREE().
