a47bac9966
Instead of passing an enum with the capability when creating it, relying on polymorphism and a template struct tag to determine the object type at runtime. This is cleaner and avoids errors where we pass the wrong capability type with the cap and do a bad cast at runtime.
37 lines
673 B
C++
37 lines
673 B
C++
#pragma once
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#include "lib/linked_list.h"
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#include "lib/mutex.h"
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#include "object/kernel_object.h"
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#include "object/thread.h"
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#include "usr/zcall_internal.h"
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class Port;
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template <>
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struct KernelObjectTag<Port> {
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static const uint64_t type = KernelObject::PORT;
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};
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class Port : public KernelObject {
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public:
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uint64_t TypeTag() override { return KernelObject::PORT; }
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Port();
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z_err_t Write(const ZMessage& msg);
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z_err_t Read(ZMessage& msg);
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private:
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struct Message {
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uint64_t type;
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uint64_t num_bytes;
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uint8_t* bytes;
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};
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LinkedList<Message> pending_messages_;
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LinkedList<RefPtr<Thread>> blocked_threads_;
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Mutex mutex_{"Port"};
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};
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