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Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
This commit is contained in:
Josh Soref 2025-01-28 12:50:27 -05:00
parent 1fcda4287c
commit 10dee72f9e
2 changed files with 10 additions and 10 deletions
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16
src/libutil/heap.c
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@ -62,13 +62,13 @@ typedef union _tagAlignmentStruct_t
/* fragment. */
typedef struct _tagHeapInfo_t
{
//! Size of the preceding segment, measured in units of ALIGNMENT_SIZE, including the size of this beginer
//! Size of the preceding segment, measured in units of ALIGNMENT_SIZE, including the size of this header
uint16_t PrevSize;
//! Whether or not this block is currently allocated (vs being free).
bool is_allocated:1;
//! Size of this segment, measured in units of ALIGNMENT_SIZE, including this size of this beginer
//! Size of this segment, measured in units of ALIGNMENT_SIZE, including this size of this header
uint16_t Size:15;
#ifdef MALLOC_INSTRUMENTATION
@ -81,10 +81,10 @@ typedef struct _tagHeapInfo_t
} HeapInfo_t;
//! The size of a block in units of Alignment_t, including the beginer and including _x words of data.
//! The size of a block in units of Alignment_t, including the header and including _x words of data.
#define HEAP_INFO_BLOCK_SIZE(_x) ((offsetof(HeapInfo_t, Data) / ALIGNMENT_SIZE) + (_x))
//! Convert a pointer to the Data member to a pointer to the HeapInfo_t beginer
//! Convert a pointer to the Data member to a pointer to the HeapInfo_t header
#define HEAP_INFO_FOR_PTR(ptr) (HeapInfo_t *)(((Alignment_t *)ptr) - HEAP_INFO_BLOCK_SIZE(0))
_Static_assert((offsetof(HeapInfo_t, Data) % ALIGNMENT_SIZE) == 0, "Heap not properly aligned.");
@ -241,7 +241,7 @@ void *heap_malloc(Heap* const heap, unsigned long nbytes, uintptr_t client_pc) {
/* size. */
unsigned long allocation_size = (nbytes + (ALIGNMENT_SIZE - 1)) / ALIGNMENT_SIZE;
/* Add the beginer size to the requested size. */
/* Add the header size to the requested size. */
allocation_size += HEAP_INFO_BLOCK_SIZE(0);
/* Verify that the requested size is valid */
@ -336,7 +336,7 @@ void heap_free(Heap* const heap, void *ptr, uintptr_t client_pc) {
/* Check to see if the previous segment can be combined. */
if(!previous_block->is_allocated) {
/* Add the segment to be freed to the new beginer. */
/* Add the segment to be freed to the new header. */
previous_block->Size += heap_info_ptr->Size;
/* Set the pointer to the beginning of the previous */
@ -470,7 +470,7 @@ static HeapInfo_t *find_segment(Heap* const heap, unsigned long n_units) {
//! Split a block into two smaller blocks, returning a pointer to the new second block.
//! The first block will be available at the same location as before, but with a smaller size.
//! Assumes the block is big enough to be split and is unallocated.
//! @param first_part_size the size of the new block, in ALIGNMENT_SIZE units, including the beginer
//! @param first_part_size the size of the new block, in ALIGNMENT_SIZE units, including the header
static HeapInfo_t* split_block(Heap *heap, HeapInfo_t* block, size_t first_part_size) {
HeapInfo_t* second_block = (HeapInfo_t*) (((Alignment_t*) block) + first_part_size);
@ -495,7 +495,7 @@ static HeapInfo_t* split_block(Heap *heap, HeapInfo_t* block, size_t first_part_
}
//! Allocated the block in the given HeapInfo_t segment.
//! @param n_units number of ALIGNMENT_SIZE units this segment requires (including space for the beginer).
//! @param n_units number of ALIGNMENT_SIZE units this segment requires (including space for the header).
//! @param heap_info_ptr the segment where the block should be allocated.
static HeapInfo_t *allocate_block(Heap* const heap, unsigned long n_units, HeapInfo_t* heap_info_ptr) {
// Make sure we can use all or part of this block for this allocation.

4
src/libutil/includes/util/heap.h
View file

@ -43,9 +43,9 @@ typedef struct Heap {
HeapInfo_t *begin;
HeapInfo_t *end;
//! Number of allocated bytes, including beginers
//! Number of allocated bytes, including headers
unsigned int current_size;
//! Peak number of allocated bytes, including beginers
//! Peak number of allocated bytes, including headers
unsigned int high_water_mark;
HeapLockImpl lock_impl;