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Add a C++ helper class for working with shared buffers.

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This is a bit more comfortable than passing the shared buffer ID manually
everywhere and keeping track of size etc.
This commit is contained in:
Andreas Kling 2019-03-08 12:22:55 +01:00
parent 0b5d5fc3c9
commit eda0866992
14 changed files with 186 additions and 46 deletions
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24
LibC/SharedBuffer.h Normal file
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#pragma once
#include <AK/Retainable.h>
#include <AK/RetainPtr.h>
class SharedBuffer : public Retainable<SharedBuffer> {
public:
static RetainPtr<SharedBuffer> create(pid_t peer, int);
static RetainPtr<SharedBuffer> create_from_shared_buffer_id(int);
~SharedBuffer();
int shared_buffer_id() const { return m_shared_buffer_id; }
void seal();
int size() const { return m_size; }
void* data() { return m_data; }
const void* data() const { return m_data; }
private:
SharedBuffer(int shared_buffer_id, int size, void*);
int m_shared_buffer_id { -1 };
int m_size { 0 };
void* m_data;
};