obdiolib.h

来自「lustre 1.6.5 source code」· C头文件 代码 · 共 54 行

/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
 * vim:expandtab:shiftwidth=8:tabstop=8:
 *
 *   This file is part of Lustre, http://www.lustre.org
 */
#ifndef _OBDIOLIB_H_
#define _OBDIOLIB_H_

#include <unistd.h>

#include <sys/types.h>
#include <sys/stat.h>

#include <lustre_lib.h>
#include <lustre/lustre_idl.h>
#include <obd_class.h>

struct obdio_conn {
        int                    oc_fd;
        __u32                  oc_device;
        struct obd_ioctl_data  oc_data;
        char                   oc_buffer[8192];
};

struct obdio_barrier {
        __u64                  ob_id;
        __u64                  ob_oid;
        __u64                  ob_npeers;
        __u64                  ob_ordinal;
        __u64                  ob_count;
};

extern struct obdio_conn *obdio_connect(int device);
extern void obdio_disconnect(struct obdio_conn *conn, int flags);
extern int obdio_open(struct obdio_conn *conn, __u64 oid,
                      struct lustre_handle *fh);
extern int obdio_close(struct obdio_conn *conn, __u64 oid,
                       struct lustre_handle *fh);
extern int obdio_pread(struct obdio_conn *conn, __u64 oid,
                       void *buffer, __u32 count, __u64 offset);
extern int obdio_pwrite(struct obdio_conn *conn, __u64 oid,
                        void *buffer, __u32 count, __u64 offset);
extern int obdio_enqueue(struct obdio_conn *conn, __u64 oid,
                         int mode, __u64 offset, __u32 count,
                         struct lustre_handle *lh);
extern int obdio_cancel(struct obdio_conn *conn, struct lustre_handle *lh);
extern void *obdio_alloc_aligned_buffer(void **spacep, int size);
extern struct obdio_barrier *obdio_new_barrier(__u64 oid, __u64 id,
                                               int npeers);
extern int obdio_setup_barrier(struct obdio_conn *conn,struct obdio_barrier *b);
extern int obdio_barrier(struct obdio_conn *conn, struct obdio_barrier *b);

#endif