43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
#include "object/endpoint.h"
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#include "scheduler/scheduler.h"
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glcr::RefPtr<Endpoint> Endpoint::Create() {
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return glcr::AdoptPtr(new Endpoint);
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}
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glcr::ErrorCode Endpoint::Write(uint64_t num_bytes, const void* data,
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z_cap_t reply_port_cap) {
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MutexHolder h(mutex_);
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RET_ERR(message_queue_.PushBack(num_bytes, data, 1, &reply_port_cap));
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if (blocked_threads_.size() > 0) {
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auto thread = blocked_threads_.PopFront();
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thread->SetState(Thread::RUNNABLE);
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gScheduler->Enqueue(thread);
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}
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return glcr::OK;
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}
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glcr::ErrorCode Endpoint::Read(uint64_t* num_bytes, void* data,
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z_cap_t* reply_port_cap) {
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mutex_.Lock();
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while (message_queue_.empty()) {
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auto thread = gScheduler->CurrentThread();
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thread->SetState(Thread::BLOCKED);
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mutex_.Unlock();
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gScheduler->Yield();
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mutex_.Lock();
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}
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mutex_.Unlock();
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MutexHolder h(mutex_);
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uint64_t num_caps = 1;
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RET_ERR(message_queue_.PopFront(num_bytes, data, &num_caps, reply_port_cap));
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if (num_caps != 1) {
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return glcr::INTERNAL;
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}
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return glcr::OK;
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}
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