#!/bin/sh

aclocal -I .
autoheader
autoconf
automake --add-missing --copy --foreign
 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.
*/

/*
  This file defines MACROS and static inlines used to emulate a function
  call over asynchronous communication with remote server
*/

#ifndef _STACK_H
#define _STACK_H

struct _call_stack;
typedef struct _call_stack call_stack_t;
struct _call_frame;
typedef struct _call_frame call_frame_t;
struct call_pool;
typedef struct call_pool call_pool_t;

#include <sys/time.h>

#include "xlator.h"
#include "dict.h"
#include "list.h"
#include "common-utils.h"
#include "lkowner.h"
#include "client_t.h"
#include "libglusterfs-messages.h"
#include "timespec.h"

#define NFS_PID 1
#define LOW_PRIO_PROC_PID -1

#define STACK_ERR_XL_NAME(stack) (stack->err_xl?stack->err_xl->name:"-")
#define STACK_CLIENT_NAME(stack) (stack->client?stack->client->client_uid:"-")

typedef int32_t (*ret_fn_t) (call_frame_t *frame,
                             call_frame_t *prev_frame,
                             xlator_t *this,
                             int32_t op_ret,
                             int32_t op_errno,
                             ...);

struct call_pool {
        union {
                struct list_head   all_frames;
                struct {
                        call_stack_t *next_call;
                        call_stack_t *prev_call;
                } all_stacks;
        };
        int64_t                     cnt;
        gf_atomic_t                 total_count;
        gf_lock_t                   lock;
        struct mem_pool             *frame_mem_pool;
        struct mem_pool             *stack_mem_pool;
};

struct _call_frame {
        call_stack_t *root;        /* stack root */
        call_frame_t *parent;      /* previous BP */
        struct list_head frames;
        void         *local;       /* local variables */
        xlator_t     *this;        /* implicit object */
        ret_fn_t      ret;         /* op_return address */
        int32_t       ref_count;
        gf_lock_t     lock;
        void         *cookie;      /* unique cookie */
        gf_boolean_t  complete;

        glusterfs_fop_t  op;
        struct timespec  begin;      /* when this frame was created */
        struct timespec  end;        /* when this frame completed */
        const char      *wind_from;
        const char      *wind_to;
        const char      *unwind_from;
        const char      *unwind_to;
};

#define SMALL_GROUP_COUNT 128

struct _call_stack {
        union {
                struct list_head      all_frames;
                struct {
                        call_stack_t *next_call;
                        call_stack_t *prev_call;
                };
        };
        call_pool_t                  *pool;
        gf_lock_t                     stack_lock;
        client_t                     *client;
        uint64_t                      unique;
        void                         *state;  /* pointer to request state */
        uid_t                         uid;
        gid_t                         gid;
        pid_t                         pid;
        char                          identifier[UNIX_PATH_MAX];
        uint16_t                      ngrps;
        uint32_t                      groups_small[SMALL_GROUP_COUNT];
	uint32_t                     *groups_large;
	uint32_t                     *groups;
        gf_lkowner_t                  lk_owner;
        gl