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eliminate content-layer-specific u128 hash

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This commit is contained in:
Ryan Fleury
2025-10-07 16:24:54 -07:00
parent cd26bf1bcc
commit 166b84cf30
4 changed files with 15 additions and 25 deletions
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src/ctrl/ctrl_core.c
+12 -6
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@@ -6009,15 +6009,15 @@ ctrl_memory_artifact_create(String8 key, B32 *cancel_signal, B32 *retry_out)
B32 pre_run_state = ins_atomic_u64_eval(&ctrl_state->ctrl_thread_run_state);
if(range_size != 0)
{
// rjf: set up arena
U64 page_size = os_get_system_info()->page_size; // TODO(rjf): @page_size_from_process
U64 arena_size = AlignPow2(range_size + ARENA_HEADER_SIZE, page_size);
range_arena = arena_alloc(.reserve_size = range_size+ARENA_HEADER_SIZE, .commit_size = range_size+ARENA_HEADER_SIZE);
if(range_arena == 0)
{
range_size = 0;
}
else
// rjf: if we got an arena -> push buffer & read
if(range_arena != 0)
{
// rjf: read as much as possible
range_base = push_array_no_zero(range_arena, U8, range_size);
U64 bytes_read = 0;
U64 retry_count = 0;
@@ -6042,16 +6042,22 @@ ctrl_memory_artifact_create(String8 key, B32 *cancel_signal, B32 *retry_out)
break;
}
}
// rjf: if we read nothing, release arena
if(bytes_read == 0)
{
arena_release(range_arena);
range_base = 0;
range_arena = 0;
}
// rjf: if we only got a partial read, zero the rest
else if(bytes_read < range_size)
{
MemoryZero((U8 *)range_base + bytes_read, range_size-bytes_read);
}
// rjf: determine final size; zero terminate if needed; pop any unneeded bytes if zero-terminating
zero_terminated_size = bytes_read;
if(zero_terminated && range_base != 0)
{
@@ -6091,7 +6097,7 @@ ctrl_memory_artifact_create(String8 key, B32 *cancel_signal, B32 *retry_out)
U128 hash = {0};
if((zero_terminated_size > 0 || !key_has_history) && range_size != 0 && pre_read_mem_gen == post_read_mem_gen)
{
hash = c_submit_data(content_key, &range_arena, str8((U8*)range_base, zero_terminated_size));
hash = c_submit_data(content_key, &range_arena, str8((U8 *)range_base, zero_terminated_size));
}
else if(range_arena != 0)
{