45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
#pragma once
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#include "capability/capability.h"
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#include "include/ztypes.h"
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#include "lib/linked_list.h"
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#include "lib/shared_ptr.h"
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class MessageQueue {
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public:
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virtual ~MessageQueue() {}
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virtual z_err_t PushBack(uint64_t num_bytes, const void* bytes,
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uint64_t num_caps, const z_cap_t* caps) = 0;
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virtual z_err_t PopFront(uint64_t* num_bytes, void* bytes, uint64_t* num_caps,
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z_cap_t* caps) = 0;
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};
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class UnboundedMessageQueue : public MessageQueue {
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public:
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UnboundedMessageQueue() {}
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UnboundedMessageQueue(const UnboundedMessageQueue&) = delete;
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UnboundedMessageQueue& operator=(const UnboundedMessageQueue&) = delete;
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virtual ~UnboundedMessageQueue() override {}
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z_err_t PushBack(uint64_t num_bytes, const void* bytes, uint64_t num_caps,
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const z_cap_t* caps) override;
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z_err_t PopFront(uint64_t* num_bytes, void* bytes, uint64_t* num_caps,
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z_cap_t* caps) override;
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void WriteKernel(uint64_t init, RefPtr<Capability> cap);
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uint64_t size() { return pending_messages_.size(); }
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bool empty() { return size() == 0; }
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private:
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struct Message {
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uint64_t num_bytes;
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uint8_t* bytes;
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LinkedList<RefPtr<Capability>> caps;
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};
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LinkedList<SharedPtr<Message>> pending_messages_;
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};
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