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txti layer -> open files in write-shared mode, to prevent locking file from e.g. an editor which is writing; also only enable change detection when ui is actively updating

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This commit is contained in:
Ryan Fleury
2024-01-18 10:04:00 -08:00
parent d2d72bd7ab
commit 3567e6c53d
8 changed files with 54 additions and 27 deletions
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src/txti/txti.c
+26 -14
View File
@@ -923,6 +923,15 @@ txti_append(TXTI_Handle handle, String8 string)
os_condition_variable_broadcast(mut_thread->msg_cv);
}
//- rjf: buffer external change detection enabling/disabling
internal void
txti_set_external_change_detection_enabled(B32 enabled)
{
U64 enabled_u64 = (U64)enabled;
ins_atomic_u64_eval_assign(&txti_state->detector_thread_enabled, enabled_u64);
}
////////////////////////////////
//~ rjf: Mutator Threads
@@ -972,7 +981,7 @@ txti_mut_thread_entry_point(void *p)
U64 timestamp = 0;
if(msg->kind == TXTI_MsgKind_Reload)
{
OS_Handle file = os_file_open(OS_AccessFlag_Read|OS_AccessFlag_Shared, msg->string);
OS_Handle file = os_file_open(OS_AccessFlag_Read|OS_AccessFlag_ShareRead|OS_AccessFlag_ShareWrite, msg->string);
FileProperties props = os_properties_from_file(file);
timestamp = props.modified;
file_contents = os_string_from_file_range(scratch.arena, file, r1u64(0, props.size));
@@ -1228,23 +1237,26 @@ txti_detector_thread_entry_point(void *p)
ProfThreadName("[txti] detector");
for(;;)
{
U64 slots_per_stripe = txti_state->entity_map.slots_count/txti_state->entity_map_stripes.count;
for(U64 stripe_idx = 0; stripe_idx < txti_state->entity_map_stripes.count; stripe_idx += 1)
if(ins_atomic_u64_eval(&txti_state->detector_thread_enabled))
{
TXTI_Stripe *stripe = &txti_state->entity_map_stripes.v[stripe_idx];
OS_MutexScopeR(stripe->rw_mutex) for(U64 slot_in_stripe_idx = 0; slot_in_stripe_idx < slots_per_stripe; slot_in_stripe_idx += 1)
U64 slots_per_stripe = txti_state->entity_map.slots_count/txti_state->entity_map_stripes.count;
for(U64 stripe_idx = 0; stripe_idx < txti_state->entity_map_stripes.count; stripe_idx += 1)
{
U64 slot_idx = stripe_idx*slots_per_stripe + slot_in_stripe_idx;
TXTI_EntitySlot *slot = &txti_state->entity_map.slots[slot_idx];
for(TXTI_Entity *entity = slot->first; entity != 0; entity = entity->next)
TXTI_Stripe *stripe = &txti_state->entity_map_stripes.v[stripe_idx];
OS_MutexScopeR(stripe->rw_mutex) for(U64 slot_in_stripe_idx = 0; slot_in_stripe_idx < slots_per_stripe; slot_in_stripe_idx += 1)
{
FileProperties props = os_properties_from_file_path(entity->path);
U64 entity_timestamp = entity->timestamp;
if(props.modified != entity_timestamp && ins_atomic_u64_eval(&entity->working_count) == 0)
U64 slot_idx = stripe_idx*slots_per_stripe + slot_in_stripe_idx;
TXTI_EntitySlot *slot = &txti_state->entity_map.slots[slot_idx];
for(TXTI_Entity *entity = slot->first; entity != 0; entity = entity->next)
{
TXTI_Handle handle = {txti_hash_from_string(entity->path), entity->id};
txti_reload(handle, entity->path);
ins_atomic_u64_inc_eval(&entity->working_count);
FileProperties props = os_properties_from_file_path(entity->path);
U64 entity_timestamp = entity->timestamp;
if(props.modified != entity_timestamp && ins_atomic_u64_eval(&entity->working_count) == 0)
{
TXTI_Handle handle = {txti_hash_from_string(entity->path), entity->id};
txti_reload(handle, entity->path);
ins_atomic_u64_inc_eval(&entity->working_count);
}
}
}
}
src/txti/txti.h
+4
View File
@@ -322,6 +322,7 @@ struct TXTI_State
TXTI_MutThread *mut_threads;
// rjf: detector thread
U64 detector_thread_enabled;
OS_Handle detector_thread;
};
@@ -379,6 +380,9 @@ internal TxtRng txti_expr_range_from_handle_pt(TXTI_Handle handle, TxtPt pt);
internal void txti_reload(TXTI_Handle handle, String8 path);
internal void txti_append(TXTI_Handle handle, String8 string);
//- rjf: buffer external change detection enabling/disabling
internal void txti_set_external_change_detection_enabled(B32 enabled);
////////////////////////////////
//~ rjf: Mutator Threads