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Code Issues Releases Activity

kern: update for 11.0.1

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This commit is contained in:
Michael Scire 2020-12-11 02:59:09 -08:00
parent be8473cf65
commit 7fb902d8fb
2 changed files with 30 additions and 14 deletions
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5
libraries/libmesosphere/include/mesosphere/kern_k_synchronization_object.hpp
View file

@ -30,9 +30,10 @@ namespace ams::kern {
KThread *thread;
};
private:
ThreadListNode *thread_list_root;
ThreadListNode *thread_list_head;
ThreadListNode *thread_list_tail;
protected:
constexpr ALWAYS_INLINE explicit KSynchronizationObject() : KAutoObjectWithList(), thread_list_root() { MESOSPHERE_ASSERT_THIS(); }
constexpr ALWAYS_INLINE explicit KSynchronizationObject() : KAutoObjectWithList(), thread_list_head(), thread_list_tail() { MESOSPHERE_ASSERT_THIS(); }
virtual ~KSynchronizationObject() { MESOSPHERE_ASSERT_THIS(); }
virtual void OnFinalizeSynchronizationObject() { MESOSPHERE_ASSERT_THIS(); }

39
libraries/libmesosphere/source/kern_k_synchronization_object.cpp
View file

@ -81,8 +81,15 @@ namespace ams::kern {
/* Add the waiters. */
for (auto i = 0; i < num_objects; ++i) {
thread_nodes[i].thread = thread;
thread_nodes[i].next = objects[i]->thread_list_root;
objects[i]->thread_list_root = std::addressof(thread_nodes[i]);
thread_nodes[i].next = nullptr;
if (objects[i]->thread_list_tail == nullptr) {
objects[i]->thread_list_head = std::addressof(thread_nodes[i]);
} else {
objects[i]->thread_list_tail->next = std::addressof(thread_nodes[i]);
}
objects[i]->thread_list_tail = std::addressof(thread_nodes[i]);
}
/* Mark the thread as waiting. */
@ -111,11 +118,22 @@ namespace ams::kern {
for (auto i = 0; i < num_objects; ++i) {
/* Unlink the object from the list. */
ThreadListNode **link = std::addressof(objects[i]->thread_list_root);
while (*link != std::addressof(thread_nodes[i])) {
link = std::addressof((*link)->next);
ThreadListNode *prev_ptr = reinterpret_cast<ThreadListNode *>(std::addressof(objects[i]->thread_list_head));
ThreadListNode *prev_val = nullptr;
ThreadListNode *prev, *tail_prev;
do {
prev = prev_ptr;
prev_ptr = prev_ptr->next;
tail_prev = prev_val;
prev_val = prev_ptr;
} while (prev_ptr != std::addressof(thread_nodes[i]));
if (objects[i]->thread_list_tail == std::addressof(thread_nodes[i])) {
objects[i]->thread_list_tail = tail_prev;
}
*link = thread_nodes[i].next;
prev->next = thread_nodes[i].next;
if (objects[i] == synced_obj) {
sync_index = i;
@ -139,7 +157,7 @@ namespace ams::kern {
}
/* Iterate over each thread. */
for (auto *cur_node = this->thread_list_root; cur_node != nullptr; cur_node = cur_node->next) {
for (auto *cur_node = this->thread_list_head; cur_node != nullptr; cur_node = cur_node->next) {
KThread *thread = cur_node->thread;
if (thread->GetState() == KThread::ThreadState_Waiting) {
thread->SetSyncedObject(this, result);
@ -158,8 +176,7 @@ namespace ams::kern {
MESOSPHERE_RELEASE_LOG("Threads waiting on %p:\n", this);
bool has_waiters = false;
for (auto *cur_node = this->thread_list_root; cur_node != nullptr; cur_node = cur_node->next) {
for (auto *cur_node = this->thread_list_head; cur_node != nullptr; cur_node = cur_node->next) {
KThread *thread = cur_node->thread;
if (KProcess *process = thread->GetOwnerProcess(); process != nullptr) {
@ -167,12 +184,10 @@ namespace ams::kern {
} else {
MESOSPHERE_RELEASE_LOG(" %p tid=%ld (Kernel)\n", thread, thread->GetId());
}
has_waiters = true;
}
/* If we didn't have any waiters, print so. */
if (!has_waiters) {
if (this->thread_list_head != nullptr) {
MESOSPHERE_RELEASE_LOG(" None\n");
}
}