Endpoint syscalls implemented

zion/object/reply_port.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include <glacier/memory/ref_ptr.h>
+
+#include "lib/message_queue.h"
+#include "lib/mutex.h"
+#include "object/kernel_object.h"
+
+class ReplyPort;
+
+template <>
+struct KernelObjectTag<ReplyPort> {
+  static const uint64_t type = KernelObject::REPLY_PORT;
+};
+
+class ReplyPort : public KernelObject {
+ public:
+  uint64_t TypeTag() override { return KernelObject::REPLY_PORT; }
+  static glcr::RefPtr<ReplyPort> Create();
+
+  uint64_t Write(uint64_t num_bytes, const void* data, uint64_t num_caps,
+                 uint64_t* caps);
+  uint64_t Read(uint64_t* num_bytes, void* data, uint64_t* num_caps,
+                uint64_t* caps);
+
+ private:
+  Mutex mutex_{"reply_port"};
+  SingleMessageQueue message_holder_;
+
+  glcr::RefPtr<Thread> blocked_thread_;
+
+  ReplyPort() {}
+};