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Add ability to register custom error function called on various error conditions; including ENOMEM

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This commit is contained in:
daan 2020-01-17 19:59:55 -08:00
parent 3e982a3813
commit dc58388968
20 changed files with 342 additions and 127 deletions
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10
src/page.c
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@ -175,7 +175,7 @@ static void _mi_page_thread_free_collect(mi_page_t* page)
}
// if `count > max_count` there was a memory corruption (possibly infinite list due to double multi-threaded free)
if (count > max_count) {
_mi_fatal_error("corrupted thread-free list\n");
_mi_error_message(EFAULT, "corrupted thread-free list\n");
return; // the thread-free items cannot be freed
}
@ -796,7 +796,8 @@ void* _mi_malloc_generic(mi_heap_t* heap, size_t size) mi_attr_noexcept
mi_page_t* page;
if (mi_unlikely(size > MI_LARGE_OBJ_SIZE_MAX)) {
if (mi_unlikely(size > PTRDIFF_MAX)) { // we don't allocate more than PTRDIFF_MAX (see <https://sourceware.org/ml/libc-announce/2019/msg00001.html>)
page = NULL;
_mi_error_message(EOVERFLOW, "allocation request is too large (%zu b requested)\n", size);
return NULL;
}
else {
page = mi_huge_page_alloc(heap,size);
@ -806,7 +807,10 @@ void* _mi_malloc_generic(mi_heap_t* heap, size_t size) mi_attr_noexcept
// otherwise find a page with free blocks in our size segregated queues
page = mi_find_free_page(heap,size);
}
if (page == NULL) return NULL; // out of memory
if (mi_unlikely(page == NULL)) { // out of memory
_mi_error_message(ENOMEM, "cannot allocate memory (%zu bytes requested)\n", size);
return NULL;
}
mi_assert_internal(mi_page_immediate_available(page));
mi_assert_internal(mi_page_block_size(page) >= size);