roland/xo-alloc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

xo-alloc2: allocation unit tests

Browse source
This commit is contained in:
Roland Conybeare 2025-12-12 14:04:20 -05:00
commit 1ac6631d6d
4 changed files with 82 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

11
xo-alloc2/src/alloc2/IAllocator_DArena.cpp
View file

@ -148,18 +148,13 @@ namespace xo {
{
scope log(XO_DEBUG(s.config_.debug_flag_));
/* word size for alignment (8 bytes) */
constexpr size_t c_bpw = sizeof(std::uintptr_t);
assert(padding::is_aligned((size_t)s.free_));
std::uintptr_t free_u64 = reinterpret_cast<std::uintptr_t>(s.free_);
assert(free_u64 % c_bpw == 0ul);
/* dz: pad req_z to multiple c_bpw */
/* dz: pad req_z to alignment size (multiple of 8 bytes, probably) */
size_t dz = padding::alloc_padding(req_z);
size_t z1 = req_z + dz;
assert(z1 % c_bpw == 0ul);
assert(padding::is_aligned(z1));
if (expand(s, allocated(s) + z1)) [[likely]] {
byte * mem = s.free_;