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[Zion] Add a mutex object with appropriate syscalls.

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This commit is contained in:
Drew Galbraith 2023-10-25 14:47:45 -07:00
parent 4c2237fa72
commit 4c04f9d561
19 changed files with 160 additions and 60 deletions
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16
zion/lib/message_queue.cpp
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@ -54,16 +54,16 @@ z_err_t UnboundedMessageQueue::PushBack(uint64_t num_bytes, const void* bytes,
z_err_t UnboundedMessageQueue::PopFront(uint64_t* num_bytes, void* bytes,
uint64_t* num_caps, z_cap_t* caps,
z_cap_t* reply_cap) {
mutex_.Lock();
mutex_->Lock();
while (pending_messages_.empty()) {
auto thread = gScheduler->CurrentThread();
thread->SetState(Thread::BLOCKED);
blocked_threads_.PushBack(thread);
mutex_.Unlock();
mutex_->Release();
gScheduler->Yield();
mutex_.Lock();
mutex_->Lock();
}
mutex_.Unlock();
mutex_->Release();
MutexHolder lock(mutex_);
auto next_msg = pending_messages_.PeekFront();
@ -162,16 +162,16 @@ glcr::ErrorCode SingleMessageQueue::PushBack(uint64_t num_bytes,
glcr::ErrorCode SingleMessageQueue::PopFront(uint64_t* num_bytes, void* bytes,
uint64_t* num_caps, z_cap_t* caps,
z_cap_t* reply_port) {
mutex_.Lock();
mutex_->Lock();
while (!has_written_) {
auto thread = gScheduler->CurrentThread();
thread->SetState(Thread::BLOCKED);
blocked_threads_.PushBack(thread);
mutex_.Unlock();
mutex_->Release();
gScheduler->Yield();
mutex_.Lock();
mutex_->Lock();
}
mutex_.Unlock();
mutex_->Release();
MutexHolder lock(mutex_);
if (has_read_) {