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promote content scope to base layer, rename as 'access'; generalize based just on list of scope refcounts, + optional cvs; eliminate c_scope; replace dasm_scope with access as well

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This commit is contained in:
Ryan Fleury
2025-09-18 15:21:22 -07:00
parent 5381307e90
commit 1b93dbd4bd
15 changed files with 203 additions and 308 deletions
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src/dasm_cache/dasm_cache.c
+10 -64
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@@ -277,67 +277,11 @@ dasm_init(void)
dasm_shared->req_arena = arena_alloc();
}
////////////////////////////////
//~ rjf: Scoped Access
internal DASM_Scope *
dasm_scope_open(void)
{
if(dasm_tctx == 0)
{
Arena *arena = arena_alloc();
dasm_tctx = push_array(arena, DASM_TCTX, 1);
dasm_tctx->arena = arena;
}
U64 base_pos = arena_pos(dasm_tctx->arena);
DASM_Scope *scope = push_array(dasm_tctx->arena, DASM_Scope, 1);
scope->base_pos = base_pos;
return scope;
}
internal void
dasm_scope_close(DASM_Scope *scope)
{
for(DASM_Touch *t = scope->top_touch, *next = 0; t != 0; t = next)
{
next = t->next;
U64 slot_idx = t->hash.u64[1]%dasm_shared->slots_count;
U64 stripe_idx = slot_idx%dasm_shared->stripes_count;
DASM_Slot *slot = &dasm_shared->slots[slot_idx];
DASM_Stripe *stripe = &dasm_shared->stripes[stripe_idx];
MutexScopeR(stripe->rw_mutex)
{
for(DASM_Node *n = slot->first; n != 0; n = n->next)
{
if(u128_match(t->hash, n->hash) && dasm_params_match(&t->params, &n->params))
{
ins_atomic_u64_dec_eval(&n->scope_ref_count);
break;
}
}
}
}
arena_pop_to(dasm_tctx->arena, scope->base_pos);
}
internal void
dasm_scope_touch_node__stripe_r_guarded(DASM_Scope *scope, DASM_Node *node)
{
DASM_Touch *touch = push_array(dasm_tctx->arena, DASM_Touch, 1);
ins_atomic_u64_inc_eval(&node->scope_ref_count);
ins_atomic_u64_eval_assign(&node->last_time_touched_us, os_now_microseconds());
ins_atomic_u64_eval_assign(&node->last_user_clock_idx_touched, update_tick_idx());
touch->hash = node->hash;
MemoryCopyStruct(&touch->params, &node->params);
touch->params.dbgi_key = di_key_copy(dasm_tctx->arena, &touch->params.dbgi_key);
SLLStackPush(scope->top_touch, touch);
}
////////////////////////////////
//~ rjf: Cache Lookups
internal DASM_Info
dasm_info_from_hash_params(DASM_Scope *scope, U128 hash, DASM_Params *params)
dasm_info_from_hash_params(Access *access, U128 hash, DASM_Params *params)
{
DASM_Info info = {0};
if(!u128_match(hash, u128_zero()))
@@ -402,7 +346,9 @@ dasm_info_from_hash_params(DASM_Scope *scope, U128 hash, DASM_Params *params)
// rjf: nonzero node, request if needed - touch & return results
if(node != 0)
{
dasm_scope_touch_node__stripe_r_guarded(scope, node);
ins_atomic_u64_eval_assign(&node->last_time_touched_us, os_now_microseconds());
ins_atomic_u64_eval_assign(&node->last_user_clock_idx_touched, update_tick_idx());
access_touch(access, &node->scope_ref_count, stripe->cv);
MemoryCopyStruct(&info, &node->info);
}
}
@@ -416,13 +362,13 @@ dasm_info_from_hash_params(DASM_Scope *scope, U128 hash, DASM_Params *params)
}
internal DASM_Info
dasm_info_from_key_params(DASM_Scope *scope, C_Key key, DASM_Params *params, U128 *hash_out)
dasm_info_from_key_params(Access *access, C_Key key, DASM_Params *params, U128 *hash_out)
{
DASM_Info result = {0};
for(U64 rewind_idx = 0; rewind_idx < C_KEY_HASH_HISTORY_COUNT; rewind_idx += 1)
{
U128 hash = c_hash_from_key(key, rewind_idx);
result = dasm_info_from_hash_params(scope, hash, params);
result = dasm_info_from_hash_params(access, hash, params);
if(result.lines.count != 0)
{
if(hash_out)
@@ -552,7 +498,7 @@ dasm_tick(void)
break;
}
U64 req_idx = req_num-1;
C_Scope *c_scope = c_scope_open();
Access *access = access_open();
DI_Scope *di_scope = di_scope_open();
TXT_Scope *txt_scope = txt_scope_open();
@@ -562,7 +508,7 @@ dasm_tick(void)
C_Root root = r->root;
U128 hash = r->hash;
DASM_Params params = r->params;
String8 data = c_data_from_hash(c_scope, hash);
String8 data = c_data_from_hash(access, hash);
U64 change_gen = fs_change_gen();
U64 slot_idx = hash.u64[1]%dasm_shared->slots_count;
U64 stripe_idx = slot_idx%dasm_shared->stripes_count;
@@ -655,7 +601,7 @@ dasm_tick(void)
stale = (stale || u128_match(hash, u128_zero()));
if(0 < line->line_num && line->line_num < text_info.lines_count)
{
String8 data = c_data_from_hash(c_scope, hash);
String8 data = c_data_from_hash(access, hash);
String8 line_text = str8_skip_chop_whitespace(str8_substr(data, text_info.lines_ranges[line->line_num-1]));
if(line_text.size != 0)
{
@@ -786,7 +732,7 @@ dasm_tick(void)
txt_scope_close(txt_scope);
di_scope_close(di_scope);
c_scope_close(c_scope);
access_close(access);
}
lane_sync();