CowData.hpp

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#include <cstdint>
#include <memory>
 
// experemnting with this to reduce amount of copies for some APIs
namespace subprocess {
    class RefCount {
    public:
        int release()   { return --mCount; }
        int retain()    { return ++mCount; }
        int refCount()  { return mCount; }
    private:
        int mCount=1;
    };
    class Data {
    public:
        typedef uint8_t byte;
 
        void reserve(ssize_t size);
    private:
        byte*       mData       = nullptr;
        ssize_t     mSize       = 0;
        ssize_t     mCapacity   = 0;
    };
    class CowData {
    public:
        typedef uint8_t data_type;
        void reserve(ssize_t size) { mData.resize(size); }
 
    private:
        std::shared_ptr<std::string> mData;
    };
}