Increase an allocation counter

Insert the given list of memory page spans in the global cache for small/medium blocks

! Insert the given list of memory page spans in the global cache for large blocks, similar to _memory_global_cache_insert */

Try to atomically claim a sequence of `count` bits in a single field at `idx` in `bitmap`. Returns `true` on success.

round to a good OS allocation size (bounded by max 12.5% waste)

Signal to the OS that the address range is no longer in use but may be used later again. This will release physical memory pages and reduce swapping w

Fast allocation in a page: just pop from the free list. Fall back to generic allocation only if the list is empty.

Find x in a bin. Used in other check functions. */

Check properties of any chunk, whether free, inuse, mmapped etc */

A special routine we call on thread exits to free up some resources.

Return the previous chunk.

Return the previous chunk.

Common support for independent_X routines, handling all of the combinations that can result. The opts arg has: bit 0 set if all elements are

Insert an entry into the head of the list.

allocate in a speficic arena

Note: the `try_alignment` is just a hint and the returned pointer is not guaranteed to be aligned.

Called once by the process loader

Define our own limited `fprintf` that avoids memory allocation. We do this using `snprintf` with a limited buffer.

Return segment holding given address */

Set the timer.

Try to realloc; only in-place unless can_move true */

Allocate a block of the given size

Align downwards

Set `count` bits at `bitmap_idx` to 1 atomically Returns `true` if all `count` bits were 0 previously. `any_zero` is `true` if there was at least one

returns true if all delayed frees were processed

Free a page with no more free blocks

Adjust a block that was allocated aligned, to the actual start of the block in the page.

Check properties of inuse chunks */

Get the current superblock and remove it.

Initialize bins for a new mstate that is otherwise zeroed out */