glusterfs/extras/create_new_xlator/new-xlator-tmpl.c

#pragma fragment CBK_TEMPLATE
int32_t @FOP_PREFIX @_ @NAME
    @_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret,
          int32_t op_errno, @UNWIND_PARAMS @)
{
    STACK_UNWIND_STRICT(@NAME @, frame, op_ret, op_errno, @UNWIND_ARGS @);
    return 0;
}

#pragma fragment COMMENT
If you are generating the leaf xlators, remove the STACK_WIND and replace the
    @ERROR_ARGS @to @UNWIND_ARGS @ if necessary

#pragma fragment FOP_TEMPLATE
        int32_t @FOP_PREFIX @_ @NAME
    @(call_frame_t *frame, xlator_t *this, @WIND_PARAMS @)
{
    STACK_WIND(frame, @FOP_PREFIX @_ @NAME @_cbk, FIRST_CHILD(this),
               FIRST_CHILD(this)->fops->@NAME @, @WIND_ARGS @);
    return 0;
err:
    STACK_UNWIND_STRICT(@NAME @, frame, -1, errno, @ERROR_ARGS @);
    return 0;
}

#pragma fragment FUNC_TEMPLATE
@RET_TYPE @ @FOP_PREFIX @_ @NAME @(@FUNC_PARAMS @)
{
    return @RET_VAR @;
}

#pragma fragment CP
/*
 *   Copyright (c) @CURRENT_YEAR@ 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.
 */

#pragma fragment INCLUDE_IN_SRC_FILE
#include "@XL_NAME@.h"

#pragma fragment XLATOR_METHODS

static int32_t @FOP_PREFIX @_init(xlator_t *this)
{
    return 0;
}

static void @FOP_PREFIX @_fini(xlator_t *this)
{
    return;
}

static int32_t @FOP_PREFIX @_reconfigure(xlator_t *this, dict_t *dict)
{
    return 0;
}

static int @FOP_PREFIX @_notify(xlator_t *this, int event, void *data, ...)
{
    return default_notify(this, event, data);
}

static int32_t @FOP_PREFIX @_mem_acct_init(xlator_t *this)
{
    int ret = -1;

    ret = xlator_mem_acct_init(this, gf_ @FOP_PREFIX @_mt_end + 1);
    return ret;
}

static int32_t @FOP_PREFIX @_dump_metrics(xlator_t *this, int fd)
{
    return 0;
}

struct volume_options @FOP_PREFIX @_options[] = {
    /*{ .key  = {""},
      .type = GF_OPTION_TYPE_BOOL,
      .default_value = "",
      .op_version = {GD_OP_VERSION_},
      .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC | OPT_FLAG_CLIENT_OPT,
      .tags = {""},
      .description = "",
      .category = GF_EXPERIMENTAL,
    },
    { .key = {NULL} },
    */
};

xlator_api_t xlator_api = {
    .init = @FOP_PREFIX @_init,
    .fini = @FOP_PREFIX @_fini,
    .notify = @FOP_PREFIX @_notify,
    .reconfigure = @FOP_PREFIX @_reconfigure,
    .mem_acct_init = @FOP_PREFIX @_mem_acct_init,
    .dump_metrics = @FOP_PREFIX @_dump_metrics,
    .op_version = {GD_OP_VERSION_},
    .dumpops = &@FOP_PREFIX @_dumpops,
    .fops = &@FOP_PREFIX @_fops,
    .cbks = &@FOP_PREFIX @_cbks,
    .options = @FOP_PREFIX @_options,
    .identifier = "@XL_NAME@",
    .category = GF_EXPERIMENTAL,
};
#pragma fragment HEADER_FMT
#ifndef __ @HFL_NAME @_H__
#define __ @HFL_NAME @_H__

#include "@XL_NAME@-mem-types.h"
#include "@XL_NAME@-messages.h"
#include "glusterfs.h"
#include "xlator.h"
#include "defaults.h"

#endif /* __@HFL_NAME@_H__ */

#pragma fragment MEM_HEADER_FMT
#ifndef __ @HFL_NAME @_H__
#define __ @HFL_NAME @_H__

#include "mem-types.h"

enum gf_mdc_mem_types_ {
    gf_ @FOP_PREFIX @_mt_ = gf_common_mt_end + 1,
    gf_ @FOP_PREFIX @_mt_end
};

#endif /* __@HFL_NAME@_H__ */

#pragma fragment MSG_HEADER_FMT
#ifndef __ @HFL_NAME @_H__
#define __ @HFL_NAME @_H__

#include "glfs-message-id.h"

/* To add new message IDs, append new identifiers at the end of the list.
 *
 * Never remove a message ID. If it's not used anymore, you can rename it or
 * leave it as it is, but not delete it. This is to prevent reutilization of
 * IDs by other messages.
 *
 * The component name must match one of the entries defined in
 * glfs-message-id.h.
 */

GLFS_MSGID(@FOP_PREFIX @, @FOP_PREFIX @_MSG_NO_MEMORY);

#endif /* __@HFL_NAME@_H__ */