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Optimizing search, buggy BlockArena on emscripten, cleanup MergeSort, address sanitizer, compile web on linux

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This commit is contained in:
Krzosa Karol
2025-12-30 11:59:20 +01:00
parent a57ebb49be
commit b140d9c3f1
15 changed files with 92 additions and 142 deletions
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31
src/basic/basic_alloc.cpp
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@@ -268,7 +268,7 @@ void AddBlock(BlockArena *arena, size_t size = MiB(1)) {
if (arena->allocator.proc == NULL) {
arena->allocator = GetSystemAllocator();
}
BlockArenaNode *new_block = (BlockArenaNode *)AllocSize(arena->allocator, block_size + sizeof(BlockArenaNode) + 16);
BlockArenaNode *new_block = (BlockArenaNode *)AllocSize(arena->allocator, block_size + sizeof(BlockArenaNode));
Assert(GetAlignOffset((size_t)new_block->start, DEFAULT_ALIGNMENT) == 0);
arena->start = new_block->start;
new_block->end = arena->end = new_block->start + block_size;
@@ -294,9 +294,7 @@ API void Release(BlockArena *arena) {
next = it->next;
Dealloc(arena->allocator, it);
}
bool safe = arena->when_unwinding_make_sure_to_keep_last_block_alive;
MemoryZero(arena, sizeof(BlockArena));
arena->when_unwinding_make_sure_to_keep_last_block_alive = safe;
}
API void Unwind(BlockArena *arena, U8 *pos) {
@@ -307,16 +305,11 @@ API void Unwind(BlockArena *arena, U8 *pos) {
contains = true;
break;
} else {
bool keep = arena->when_unwinding_make_sure_to_keep_last_block_alive && arena->blocks->next == NULL;
if (keep) {
pos = arena->blocks->start;
} else {
arena->blocks = arena->blocks->next;
Dealloc(arena->allocator, it);
}
arena->blocks = arena->blocks->next;
Dealloc(arena->allocator, it);
}
}
Assert(contains || pos == NULL || (arena->when_unwinding_make_sure_to_keep_last_block_alive && pos == arena->blocks->start));
Assert(contains || pos == NULL);
arena->start = pos;
arena->end = arena->blocks ? arena->blocks->end : NULL;
}
@@ -332,8 +325,11 @@ API void *BlockArenaAllocatorProc(void *object, int kind, void *p, size_t size)
return NULL;
}
#if OS_WASM
API void InitScratch() {
}
#else
thread_local VirtualArena ScratchArenas[4];
API void InitScratch() {
for (int i = 0; i < 4; i += 1) {
InitArena(&ScratchArenas[i]);
@@ -362,6 +358,7 @@ API VirtualArena *GetScratchEx(VirtualArena **conflicts, int conflict_count) {
Assert(unoccupied);
return unoccupied;
}
#endif
void RunArenaTest() {
Allocator memory_tracking_allocator = GetTrackingAllocator();
@@ -380,7 +377,6 @@ void RunArenaTest() {
{
BlockArena arena = {};
U8 *start = arena.start;
arena.allocator = memory_tracking_allocator;
int *vals = (int *)PushSize(&arena, sizeof(int) * 32);
for (int i = 0; i < 32; i += 1) vals[i] = i;
@@ -402,7 +398,7 @@ void RunArenaTest() {
U8 *p = arena.start;
U8 *a = (U8 *)PushSize(&arena, KiB(32));
U8 *b = (U8 *)PushSize(&arena, KiB(1000));
PushSize(&arena, KiB(1000));
Assert(arena.blocks);
Assert(arena.blocks->next);
Assert(arena.blocks->next->next == NULL);
@@ -418,7 +414,7 @@ void RunArenaTest() {
{
BlockArena arena = {};
arena.allocator = memory_tracking_allocator;
U8 *a = (U8 *)PushSize(&arena, KiB(2000));
PushSize(&arena, KiB(2000));
Assert((size_t)(arena.blocks[0].end - arena.blocks[0].start) == KiB(2000));
Release(&arena);
Assert(MemoryTrackingRecord.len == 0);
@@ -427,15 +423,14 @@ void RunArenaTest() {
{
BlockArena arena = {};
arena.allocator = memory_tracking_allocator;
arena.when_unwinding_make_sure_to_keep_last_block_alive = true;
PushSize(&arena, KiB(2000));
Unwind(&arena, 0);
Assert(MemoryTrackingRecord.len == 1);
Assert(MemoryTrackingRecord.len == 0);
PushSize(&arena, MiB(1));
PushSize(&arena, MiB(3));
Assert(MemoryTrackingRecord.len == 2);
Unwind(&arena, 0);
Assert(MemoryTrackingRecord.len == 1);
Assert(MemoryTrackingRecord.len == 0);
Release(&arena);
Assert(MemoryTrackingRecord.len == 0);
}