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https://github.com/RGBCube/serenity
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b907608e46
This allows us to seal a buffer *before* anyone else has access to it (well, ok, the creating process still does, but you can't win them all). It also means that a SharedBuffer can be shared with multiple clients: all you need is to have access to it to share it on again.
25 lines
651 B
C++
25 lines
651 B
C++
#pragma once
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#include <AK/RefPtr.h>
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#include <AK/RefCounted.h>
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class SharedBuffer : public RefCounted<SharedBuffer> {
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public:
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static RefPtr<SharedBuffer> create_with_size(int);
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static RefPtr<SharedBuffer> create_from_shared_buffer_id(int);
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~SharedBuffer();
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bool share_with(pid_t);
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int shared_buffer_id() const { return m_shared_buffer_id; }
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void seal();
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int size() const { return m_size; }
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void* data() { return m_data; }
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const void* data() const { return m_data; }
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private:
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SharedBuffer(int shared_buffer_id, int size, void*);
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int m_shared_buffer_id { -1 };
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int m_size { 0 };
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void* m_data;
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};
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