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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef LIBRBD_API_IO_H
#define LIBRBD_API_IO_H
#include "include/int_types.h"
#include "librbd/io/ReadResult.h"
namespace librbd {
struct ImageCtx;
namespace io { struct AioCompletion; }
namespace api {
template<typename ImageCtxT = ImageCtx>
struct Io {
static ssize_t read(ImageCtxT &image_ctx, uint64_t off, uint64_t len,
io::ReadResult &&read_result, int op_flags);
static ssize_t write(ImageCtxT &image_ctx, uint64_t off, uint64_t len,
bufferlist &&bl, int op_flags);
static ssize_t discard(ImageCtxT &image_ctx, uint64_t off, uint64_t len,
uint32_t discard_granularity_bytes);
static ssize_t write_same(ImageCtxT &image_ctx, uint64_t off, uint64_t len,
bufferlist &&bl, int op_flags);
static ssize_t write_zeroes(ImageCtxT &image_ctx, uint64_t off, uint64_t len,
int zero_flags, int op_flags);
static ssize_t compare_and_write(ImageCtxT &image_ctx, uint64_t off,
uint64_t len, bufferlist &&cmp_bl,
bufferlist &&bl, uint64_t *mismatch_off,
int op_flags);
static int flush(ImageCtxT &image_ctx);
static void aio_read(ImageCtxT &image_ctx, io::AioCompletion *c, uint64_t off,
uint64_t len, io::ReadResult &&read_result, int op_flags,
bool native_async);
static void aio_write(ImageCtxT &image_ctx, io::AioCompletion *c,
uint64_t off, uint64_t len, bufferlist &&bl,
int op_flags, bool native_async);
static void aio_discard(ImageCtxT &image_ctx, io::AioCompletion *c,
uint64_t off, uint64_t len,
uint32_t discard_granularity_bytes,
bool native_async);
static void aio_write_same(ImageCtxT &image_ctx, io::AioCompletion *c,
uint64_t off, uint64_t len, bufferlist &&bl,
int op_flags, bool native_async);
static void aio_write_zeroes(ImageCtxT &image_ctx, io::AioCompletion *c,
uint64_t off, uint64_t len, int zero_flags,
int op_flags, bool native_async);
static void aio_compare_and_write(ImageCtxT &image_ctx, io::AioCompletion *c,
uint64_t off, uint64_t len,
bufferlist &&cmp_bl, bufferlist &&bl,
uint64_t *mismatch_off, int op_flags,
bool native_async);
static void aio_flush(ImageCtxT &image_ctx, io::AioCompletion *c,
bool native_async);
};
} // namespace api
} // namespace librbd
extern template class librbd::api::Io<librbd::ImageCtx>;
#endif // LIBRBD_API_IO_H
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