rpcs3/Utilities/simple_ringbuf.h

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#pragma once
#include "util/types.hpp"
#include "util/atomic.hpp"
// Single reader/writer simple ringbuffer.
// Counters are 32-bit.
class simple_ringbuf
{
private:
atomic_t<u64> rw_ptr = 0;
u32 buf_size = 0;
std::unique_ptr<u8[]> buf{};
atomic_t<bool> initialized = false;
public:
simple_ringbuf() {};
simple_ringbuf(u32 size);
u32 get_free_size();
u32 get_used_size();
// Thread unsafe functions.
void set_buf_size(u32 size);
void flush(); // Could be safely called from reader.
u32 push(const void *data, u32 size);
u32 pop(void *data, u32 size);
};