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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef CEPHFS_MIRROR_AIO_UTILS_H
#define CEPHFS_MIRROR_AIO_UTILS_H
#include "include/rados/librados.hpp"
namespace cephfs {
namespace mirror {
template <typename T, void(T::*MF)(int)>
void rados_callback(rados_completion_t c, void *arg) {
T *obj = reinterpret_cast<T*>(arg);
int r = rados_aio_get_return_value(c);
(obj->*MF)(r);
}
template <typename T, void (T::*MF)(int)>
class C_CallbackAdapter : public Context {
T *obj;
public:
C_CallbackAdapter(T *obj)
: obj(obj) {
}
protected:
void finish(int r) override {
(obj->*MF)(r);
}
};
template <typename WQ>
struct C_AsyncCallback : public Context {
WQ *op_work_queue;
Context *on_finish;
C_AsyncCallback(WQ *op_work_queue, Context *on_finish)
: op_work_queue(op_work_queue), on_finish(on_finish) {
}
~C_AsyncCallback() override {
delete on_finish;
}
void finish(int r) override {
op_work_queue->queue(on_finish, r);
on_finish = nullptr;
}
};
} // namespace mirror
} // namespace cephfs
#endif // CEPHFS_MIRROR_AIO_UTILS_H
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