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Merge pull request #98385 from RandomShaper/thread_yield

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Rationalize busy waits
This commit is contained in:
Rémi Verschelde 2024-12-20 23:56:39 +01:00
commit 8a743f23e6
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GPG key ID: C3336907360768E1
7 changed files with 30 additions and 22 deletions
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31
editor/editor_file_system.cpp
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@ -3027,9 +3027,9 @@ void EditorFileSystem::_refresh_filesystem() {
}
void EditorFileSystem::_reimport_thread(uint32_t p_index, ImportThreadData *p_import_data) {
int current_max = p_import_data->reimport_from + int(p_index);
p_import_data->max_index.exchange_if_greater(current_max);
_reimport_file(p_import_data->reimport_files[current_max].path);
int file_idx = p_import_data->reimport_from + int(p_index);
_reimport_file(p_import_data->reimport_files[file_idx].path);
p_import_data->imported_sem->post();
}
void EditorFileSystem::reimport_files(const Vector<String> &p_files) {
@ -3108,6 +3108,7 @@ void EditorFileSystem::reimport_files(const Vector<String> &p_files) {
#endif
int from = 0;
Semaphore imported_sem;
for (int i = 0; i < reimport_files.size(); i++) {
if (groups_to_reimport.has(reimport_files[i].path)) {
from = i + 1;
@ -3131,21 +3132,27 @@ void EditorFileSystem::reimport_files(const Vector<String> &p_files) {
importer->import_threaded_begin();
ImportThreadData tdata;
tdata.max_index.set(from);
tdata.reimport_from = from;
tdata.reimport_files = reimport_files.ptr();
tdata.imported_sem = &imported_sem;
WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &EditorFileSystem::_reimport_thread, &tdata, i - from + 1, -1, false, vformat(TTR("Import resources of type: %s"), reimport_files[from].importer));
int current_index = from - 1;
do {
if (current_index < tdata.max_index.get()) {
current_index = tdata.max_index.get();
ep->step(reimport_files[current_index].path.get_file(), current_index, false);
int item_count = i - from + 1;
WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &EditorFileSystem::_reimport_thread, &tdata, item_count, -1, false, vformat(TTR("Import resources of type: %s"), reimport_files[from].importer));
int imported_count = 0;
while (true) {
ep->step(reimport_files[imported_count].path.get_file(), from + imported_count, false);
imported_sem.wait();
do {
imported_count++;
} while (imported_sem.try_wait());
if (imported_count == item_count) {
break;
}
OS::get_singleton()->delay_usec(1);
} while (!WorkerThreadPool::get_singleton()->is_group_task_completed(group_task));
}
WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
DEV_ASSERT(!imported_sem.try_wait());
importer->import_threaded_end();
}