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Perform proper memory commit. Many bug fizes

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noselasd
2026-06-09 20:15:12 +02:00
parent 6b9b058859
commit 2b4660f7d5
7 changed files with 234 additions and 143 deletions
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src/main.c
+60 -19
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@@ -5,14 +5,15 @@
void arena_dump(const Arena *arena)
{
return;
MemoryBlock *block = arena->current;
puts("@@@@@@@@@@");
while (block) {
puts("-----Arena-----");
printf("base: %p\n", block->base);
printf("size: %u\n", block->size);
printf("pos: %u\n", block->pos);
printf("base_pos: %u\n", block->base_pos);
printf("first_free: %u\n", block->first_free);
printf("total_used: %lu\n",block->arena_offset);
printf("prev: %p\n", block->prev);
puts("-----Arena end-");
block = block->prev;
@@ -20,8 +21,12 @@ void arena_dump(const Arena *arena)
}
static void arena_test_1(void)
{
ArenaParams arena_params = {};
arena_params.size = 1024+MemoryBlock_Header_Size;
TRACEF("\n");
ArenaOptions arena_params = {};
U32 arena_size = MB(1) + MemoryBlock_Header_Size;
U32 commit_size = KB(8);
arena_params.size = arena_size;
arena_params.commit_size = commit_size;
Arena arena;
arena_init(&arena, &arena_params);
arena_dump(&arena);
@@ -40,43 +45,78 @@ static void arena_test_1(void)
arena_dump(&arena);
arena_free(&arena);
}
static void arena_test_2(void)
{
ArenaParams arena_params = {};
arena_params.size = 1024+MemoryBlock_Header_Size;
TRACEF("\n");
ArenaOptions arena_params = {};
U32 arena_size = MB(1) + MemoryBlock_Header_Size;
U32 commit_size = KB(16);
U32 push_size = KB(32);
arena_params.size = arena_size;
arena_params.commit_size = commit_size;
Arena arena;
arena_init(&arena, &arena_params);
void *ptr;
ptr = arena_push(&arena, 1024, 8);
MemoryZero(ptr, 1024);
ptr = arena_push(&arena, push_size, 8);
MemoryZero(ptr, push_size);
printf("Allocated ptr %p\n", ptr);
arena_dump(&arena);
ArenaCheckPoint checkpoint = arena_temp_begin(&arena);
ptr = arena_push(&arena, 4096, 8);
MemoryZero(ptr, 4096);
ArenaCheckpoint checkpoint = arena_temp_begin(&arena);
ptr = arena_push(&arena, MB(2), 8);
MemoryZero(ptr, MB(2));
ptr = arena_push(&arena, 4096, 8);
MemoryZero(ptr, 4096);
ptr = arena_push(&arena, commit_size * 3, 8);
MemoryZero(ptr, commit_size * 3 );
ptr = arena_push(&arena, commit_size , 8);
MemoryZero(ptr, commit_size );
ArenaCheckPoint checkpoint2 = arena_temp_begin(&arena);
ArenaCheckpoint checkpoint2 = arena_temp_begin(&arena);
ptr = arena_push(&arena, 64, 8);
MemoryZero(ptr, 64);
arena_temp_end(&checkpoint2);
arena_temp_end(&checkpoint);
arena_pop_to(&arena, 1088);
arena_reset_to(&arena, 1088);
arena_dump(&arena);
ptr = arena_push(&arena, 1, 1);
ptr = arena_push(&arena, 1, KB(16));
((U8*)ptr)[0] = 0x37;
ptr = arena_push(&arena, 1, 1);
ptr = arena_push(&arena, 1, KB(16));
((U8*)ptr)[0] = 0x73;
arena_pop_to(&arena, 1089);
ptr = arena_push(&arena, 0, KB(4));
//((U8*)ptr)[0] = 0x73;
arena_reset_to(&arena, 1089);
arena_dump(&arena);
arena_pop_to(&arena, 0);
arena_reset_to(&arena, 0);
ptr = arena_push(&arena, MB(1), 8);
MemoryZero(ptr, MB(1));
arena_free(&arena);
}
static void arena_test_3(void)
{
TRACEF("\n");
ArenaOptions arena_params = {};
U32 arena_size = KB(97) + MemoryBlock_Header_Size;
U32 commit_size = KB(97);
arena_params.size = arena_size;
arena_params.commit_size = commit_size;
Arena arena;
arena_init(&arena, &arena_params);
arena_dump(&arena);
void *ptr = arena_push(&arena, KB(64), 32);
MemoryZero(ptr, KB(64));
printf("Allocated ptr %p\n", ptr);
arena_dump(&arena);
ptr = arena_push(&arena, KB(97) - KB(64), 32);
MemoryZero(ptr, KB(97) - KB(64));
printf("Allocated ptr %p\n", ptr);
arena_dump(&arena);
arena_free(&arena);
}
@@ -84,4 +124,5 @@ int main(int argc, char *argv[])
{
arena_test_1();
arena_test_2();
arena_test_3();
}