kiper220/mimalloc
1
0
Fork 0
mirror of https://github.com/microsoft/mimalloc.git synced 2025-07-12 22:24:58 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fix whitespace

Browse source 
This mostly deletes trailing spaces.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This commit is contained in:
Johannes Schindelin 2022-12-03 00:23:43 +01:00
parent ddc9841019
commit 745a34f475
66 changed files with 760 additions and 769 deletions
Download patch file Download diff file Expand all files Collapse all files

60
src/alloc.c
View file

@ -30,7 +30,7 @@ extern inline void* _mi_page_malloc(mi_heap_t* heap, mi_page_t* page, size_t siz
mi_assert_internal(page->xblock_size==0||mi_page_block_size(page) >= size);
mi_block_t* const block = page->free;
if mi_unlikely(block == NULL) {
return _mi_malloc_generic(heap, size, zero, 0);
return _mi_malloc_generic(heap, size, zero, 0);
}
mi_assert_internal(block != NULL && _mi_ptr_page(block) == page);
// pop from the free list
@ -38,21 +38,21 @@ extern inline void* _mi_page_malloc(mi_heap_t* heap, mi_page_t* page, size_t siz
page->free = mi_block_next(page, block);
mi_assert_internal(page->free == NULL || _mi_ptr_page(page->free) == page);
// allow use of the block internally
// allow use of the block internally
// note: when tracking we need to avoid ever touching the MI_PADDING since
// that is tracked by valgrind etc. as non-accessible (through the red-zone, see `mimalloc-track.h`)
mi_track_mem_undefined(block, mi_page_usable_block_size(page));
// zero the block? note: we need to zero the full block size (issue #63)
if mi_unlikely(zero) {
mi_assert_internal(page->xblock_size != 0); // do not call with zero'ing for huge blocks (see _mi_malloc_generic)
const size_t zsize = (page->is_zero ? sizeof(block->next) + MI_PADDING_SIZE : page->xblock_size);
_mi_memzero_aligned(block, zsize - MI_PADDING_SIZE);
_mi_memzero_aligned(block, zsize - MI_PADDING_SIZE);
}
#if (MI_DEBUG>0) && !MI_TRACK_ENABLED
if (!page->is_zero && !zero && !mi_page_is_huge(page)) {
memset(block, MI_DEBUG_UNINIT, mi_page_usable_block_size(page));
if (!page->is_zero && !zero && !mi_page_is_huge(page)) {
memset(block, MI_DEBUG_UNINIT, mi_page_usable_block_size(page));
}
#elif (MI_SECURE!=0)
if (!zero) { block->next = 0; } // don't leak internal data
@ -91,7 +91,7 @@ extern inline void* _mi_page_malloc(mi_heap_t* heap, mi_page_t* page, size_t siz
static inline mi_decl_restrict void* mi_heap_malloc_small_zero(mi_heap_t* heap, size_t size, bool zero) mi_attr_noexcept {
mi_assert(heap != NULL);
#if MI_DEBUG
#if MI_DEBUG
const uintptr_t tid = _mi_thread_id();
mi_assert(heap->thread_id == 0 || heap->thread_id == tid); // heaps are thread local
#endif
@ -232,9 +232,9 @@ static bool mi_page_decode_padding(const mi_page_t* page, const mi_block_t* bloc
mi_track_mem_defined(padding,sizeof(mi_padding_t));
*delta = padding->delta;
uint32_t canary = padding->canary;
uintptr_t keys[2];
uintptr_t keys[2];
keys[0] = page->keys[0];
keys[1] = page->keys[1];
keys[1] = page->keys[1];
bool ok = ((uint32_t)mi_ptr_encode(page,block,keys) == canary && *delta <= *bsize);
mi_track_mem_noaccess(padding,sizeof(mi_padding_t));
return ok;
@ -245,7 +245,7 @@ static size_t mi_page_usable_size_of(const mi_page_t* page, const mi_block_t* bl
size_t bsize;
size_t delta;
bool ok = mi_page_decode_padding(page, block, &delta, &bsize);
mi_assert_internal(ok); mi_assert_internal(delta <= bsize);
mi_assert_internal(ok); mi_assert_internal(delta <= bsize);
return (ok ? bsize - delta : 0);
}
@ -319,15 +319,15 @@ static void mi_padding_shrink(const mi_page_t* page, const mi_block_t* block, co
// only maintain stats for smaller objects if requested
#if (MI_STAT>0)
static void mi_stat_free(const mi_page_t* page, const mi_block_t* block) {
#if (MI_STAT < 2)
#if (MI_STAT < 2)
MI_UNUSED(block);
#endif
mi_heap_t* const heap = mi_heap_get_default();
const size_t bsize = mi_page_usable_block_size(page);
const size_t bsize = mi_page_usable_block_size(page);
#if (MI_STAT>1)
const size_t usize = mi_page_usable_size_of(page, block);
mi_heap_stat_decrease(heap, malloc, usize);
#endif
#endif
if (bsize <= MI_LARGE_OBJ_SIZE_MAX) {
mi_heap_stat_decrease(heap, normal, bsize);
#if (MI_STAT > 1)
@ -352,7 +352,7 @@ static void mi_stat_free(const mi_page_t* page, const mi_block_t* block) {
}
#endif
#if MI_HUGE_PAGE_ABANDON
#if MI_HUGE_PAGE_ABANDON
#if (MI_STAT>0)
// maintain stats for huge objects
static void mi_stat_huge_free(const mi_page_t* page) {
@ -383,7 +383,7 @@ static mi_decl_noinline void _mi_free_block_mt(mi_page_t* page, mi_block_t* bloc
// that is safe as these are constant and the page won't be freed (as the block is not freed yet).
mi_check_padding(page, block);
mi_padding_shrink(page, block, sizeof(mi_block_t)); // for small size, ensure we can fit the delayed thread pointers without triggering overflow detection
mi_segment_t* const segment = _mi_page_segment(page);
if (segment->page_kind == MI_PAGE_HUGE) {
#if MI_HUGE_PAGE_ABANDON
@ -392,13 +392,13 @@ static mi_decl_noinline void _mi_free_block_mt(mi_page_t* page, mi_block_t* bloc
_mi_segment_huge_page_free(segment, page, block);
return;
#else
// huge pages are special as they occupy the entire segment
// huge pages are special as they occupy the entire segment
// as these are large we reset the memory occupied by the page so it is available to other threads
// (as the owning thread needs to actually free the memory later).
_mi_segment_huge_page_reset(segment, page, block);
#endif
}
#if (MI_DEBUG!=0) && !MI_TRACK_ENABLED // note: when tracking, cannot use mi_usable_size with multi-threading
memset(block, MI_DEBUG_FREED, mi_usable_size(block));
@ -484,13 +484,13 @@ void mi_decl_noinline _mi_free_generic(const mi_segment_t* segment, mi_page_t* p
mi_block_t* const block = (mi_page_has_aligned(page) ? _mi_page_ptr_unalign(segment, page, p) : (mi_block_t*)p);
mi_stat_free(page, block); // stat_free may access the padding
mi_track_free(p);
_mi_free_block(page, is_local, block);
_mi_free_block(page, is_local, block);
}
// Get the segment data belonging to a pointer
// This is just a single `and` in assembly but does further checks in debug mode
// (and secure mode) if this was a valid pointer.
static inline mi_segment_t* mi_checked_ptr_segment(const void* p, const char* msg)
static inline mi_segment_t* mi_checked_ptr_segment(const void* p, const char* msg)
{
MI_UNUSED(msg);
mi_assert(p != NULL);
@ -524,7 +524,7 @@ static inline mi_segment_t* mi_checked_ptr_segment(const void* p, const char* ms
return segment;
}
// Free a block
// Free a block
// fast path written carefully to prevent spilling on the stack
void mi_free(void* p) mi_attr_noexcept
{
@ -532,10 +532,10 @@ void mi_free(void* p) mi_attr_noexcept
mi_segment_t* const segment = mi_checked_ptr_segment(p,"mi_free");
const bool is_local= (_mi_thread_id() == mi_atomic_load_relaxed(&segment->thread_id));
mi_page_t* const page = _mi_segment_page_of(segment, p);
if mi_likely(is_local) { // thread-local free?
if mi_likely(page->flags.full_aligned == 0) // and it is not a full page (full pages need to move from the full bin), nor has aligned blocks (aligned blocks need to be unaligned)
{
{
mi_block_t* const block = (mi_block_t*)p;
if mi_unlikely(mi_check_is_double_free(page, block)) return;
mi_check_padding(page, block);
@ -546,7 +546,7 @@ void mi_free(void* p) mi_attr_noexcept
mi_track_free(p);
mi_block_set_next(page, block, page->local_free);
page->local_free = block;
if mi_unlikely(--page->used == 0) { // using this expression generates better code than: page->used--; if (mi_page_all_free(page))
if mi_unlikely(--page->used == 0) { // using this expression generates better code than: page->used--; if (mi_page_all_free(page))
_mi_page_retire(page);
}
}
@ -558,7 +558,7 @@ void mi_free(void* p) mi_attr_noexcept
else {
// not thread-local; use generic path
_mi_free_generic(segment, page, false, p);
}
}
}
// return true if successful
@ -598,7 +598,7 @@ mi_decl_noinline static size_t mi_page_usable_aligned_size_of(const mi_segment_t
static inline size_t _mi_usable_size(const void* p, const char* msg) mi_attr_noexcept {
if (p == NULL) return 0;
const mi_segment_t* const segment = mi_checked_ptr_segment(p, msg);
const mi_page_t* const page = _mi_segment_page_of(segment, p);
const mi_page_t* const page = _mi_segment_page_of(segment, p);
if mi_likely(!mi_page_has_aligned(page)) {
const mi_block_t* block = (const mi_block_t*)p;
return mi_page_usable_size_of(page, block);
@ -679,7 +679,7 @@ mi_decl_nodiscard mi_decl_restrict void* mi_mallocn(size_t count, size_t size) m
// Expand (or shrink) in place (or fail)
void* mi_expand(void* p, size_t newsize) mi_attr_noexcept {
#if MI_PADDING
// we do not shrink/expand with padding enabled
// we do not shrink/expand with padding enabled
MI_UNUSED(p); MI_UNUSED(newsize);
return NULL;
#else
@ -721,7 +721,7 @@ void* _mi_heap_realloc_zero(mi_heap_t* heap, void* p, size_t newsize, bool zero)
}
mi_decl_nodiscard void* mi_heap_realloc(mi_heap_t* heap, void* p, size_t newsize) mi_attr_noexcept {
return _mi_heap_realloc_zero(heap, p, newsize, false);
return _mi_heap_realloc_zero(heap, p, newsize, false);
}
mi_decl_nodiscard void* mi_heap_reallocn(mi_heap_t* heap, void* p, size_t count, size_t size) mi_attr_noexcept {
@ -881,9 +881,9 @@ static bool mi_try_new_handler(bool nothrow) {
#else
std::new_handler h = std::set_new_handler();
std::set_new_handler(h);
#endif
#endif
if (h==NULL) {
_mi_error_message(ENOMEM, "out of memory in 'new'");
_mi_error_message(ENOMEM, "out of memory in 'new'");
if (!nothrow) {
throw std::bad_alloc();
}
@ -914,7 +914,7 @@ static std_new_handler_t mi_get_new_handler() {
static bool mi_try_new_handler(bool nothrow) {
std_new_handler_t h = mi_get_new_handler();
if (h==NULL) {
_mi_error_message(ENOMEM, "out of memory in 'new'");
_mi_error_message(ENOMEM, "out of memory in 'new'");
if (!nothrow) {
abort(); // cannot throw in plain C, use abort
}