CothreadImpl.h

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#ifndef LIBCOMMUNISM_COTHREADIMPL_H
#define LIBCOMMUNISM_COTHREADIMPL_H
 
#include <libcommunism/Cothread.h>
 
#include <cstddef>
#include <cstdint>
#include <span>
 
namespace libcommunism {
struct CothreadImpl {
    using Entry = Cothread::Entry;
 
    CothreadImpl(const Cothread::Entry &entry, const size_t stackSize = 0) {
        (void) entry, (void) stackSize;
    }
 
    CothreadImpl(const Cothread::Entry &entry, std::span<uintptr_t> stack) : stack(stack) {
        (void) entry;
    }
 
    CothreadImpl(std::span<uintptr_t> stack) : stack(stack) {}
 
    virtual ~CothreadImpl() = default;
 
    virtual void switchTo(CothreadImpl *from) = 0;
 
    virtual size_t getStackSize() const {
        return this->stack.size() * sizeof(uintptr_t);
    }
 
    virtual void *getStack() const {
        return this->stack.data();
    }
 
    protected:
        std::span<uintptr_t> stack;
};
 
CothreadImpl *AllocKernelThreadWrapper();
}
 
#endif