Simplified distributed block storage with strong consistency, like in Ceph
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// Copyright (c) Vitaliy Filippov, 2019+
// License: VNPL-1.0 or GNU GPL-2.0+ (see for details)
#pragma once
#include <unistd.h>
#include <sys/uio.h>
int read_blocking(int fd, void *read_buf, size_t remaining);
int write_blocking(int fd, void *write_buf, size_t remaining);
int readv_blocking(int fd, iovec *iov, int iovcnt);
int writev_blocking(int fd, iovec *iov, int iovcnt);