/*
   Copyright (c) 2016 Red Hat, Inc. <http://www.redhat.com>
   This file is part of GlusterFS.

   This file is licensed to you under your choice of the GNU Lesser
   General Public License, version 3 or any later version (LGPLv3 or
   later), or the GNU General Public License, version 2 (GPLv2), in all
   cases as published by the Free Software Foundation.
*/

#include <glusterfs/xlator.h>
#include <glusterfs/call-stub.h>
#include "sdfs-messages.h"
#include <glusterfs/atomic.h>

#define SDFS_LOCK_COUNT_MAX 2

typedef struct {
    loc_t parent_loc;
    char *basename;
    int locked[SDFS_LOCK_COUNT_MAX];
} sdfs_entry_lock_t;

typedef struct {
    sdfs_entry_lock_t entrylk[SDFS_LOCK_COUNT_MAX];
    int lock_count;
} sdfs_lock_t;

struct sdfs_local {
    call_frame_t *main_frame;
    loc_t loc;
    loc_t parent_loc;
    call_stub_t *stub;
    sdfs_lock_t *lock;
    int op_ret;
    int op_errno;
    gf_atomic_t call_cnt;
};
typedef struct sdfs_local sdfs_local_t;

#define SDFS_STACK_DESTROY(frame)                                              \
    do {                                                                       \
        sdfs_local_t *__local = NULL;                                          \
        __local = frame->local;                                                \
        frame->local = NULL;                                                   \
        gf_client_unref(frame->root->client);                                  \
        STACK_DESTROY(frame->root);                                            \
        sdfs_local_cleanup(__local);                                           \
    } while (0)