37 lines
796 B
C++
37 lines
796 B
C++
#pragma once
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// 功能 ：定义有效载荷引用 包含数据块、偏移量、长度
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <QMetaType>
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#include "core/memory/MemoryPool.h"
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namespace softbus::message_bus::pipeline
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{
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struct PayloadRef
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{
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softbus::core::memory::MemoryPool::BlockPtr block;
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std::size_t offset{0};
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std::size_t length{0};
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const std::uint8_t* bytes() const
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{
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if (!block || !block->data || offset > block->capacity) {
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return nullptr;
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}
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return block->data + offset;
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}
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bool valid() const
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{
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return block && block->data && (offset + length <= block->capacity);
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}
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};
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} // namespace softbus::message_bus::pipeline
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Q_DECLARE_METATYPE(softbus::message_bus::pipeline::PayloadRef)
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