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# Copyright (C) 2020-present MongoDB, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the Server Side Public License, version 1,
# as published by MongoDB, Inc.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# Server Side Public License for more details.
#
# You should have received a copy of the Server Side Public License
# along with this program. If not, see
# <http://www.mongodb.com/licensing/server-side-public-license>.
#
# As a special exception, the copyright holders give permission to link the
# code of portions of this program with the OpenSSL library under certain
# conditions as described in each individual source file and distribute
# linked combinations including the program with the OpenSSL library. You
# must comply with the Server Side Public License in all respects for
# all of the code used other than as permitted herein. If you modify file(s)
# with this exception, you may extend this exception to your version of the
# file(s), but you are not obligated to do so. If you do not wish to do so,
# delete this exception statement from your version. If you delete this
# exception statement from all source files in the program, then also delete
# it in the license file.

global:
  cpp_namespace: mongo
  cpp_includes:
  - "mongo/db/mirror_maestro.h"

imports:
  - "mongo/db/basic_types.idl"

structs:
  MirroredReadsParameters:
    description: "A struct representing how to mirror read command requests"
    strict: true
    fields:
      samplingRate:
        description: >-
            A floating-point value within [0.0,1.0] specifying what fraction of reads to sample
        type: safeDouble
        default: 0.01
        validator:
          gte: 0.0
          lte: 1.0
      maxTimeMS:
        description: >-
            The maxTimeMS to apply to mirrored reads
        type: safeInt
        default: 1000
        validator:
          gt: 0

server_parameters:
  mirrorReads:
    description: "How to mirror read command requests"
    set_at: [ startup, runtime ]
    cpp_class:
        name: "MirroredReadsServerParameter"
        data: "synchronized_value<MirroredReadsParameters>"
        override_set: true