github.com/m3db/m3@v1.5.0/src/dbnode/storage/limits/noop_query_limits.go (about)

     1  // Copyright (c) 2020 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package limits
    22  
    23  type noOpQueryLimits struct {
    24  }
    25  
    26  type noOpLookbackLimit struct {
    27  }
    28  
    29  var (
    30  	_ QueryLimits   = (*noOpQueryLimits)(nil)
    31  	_ LookbackLimit = (*noOpLookbackLimit)(nil)
    32  )
    33  
    34  // NoOpQueryLimits returns inactive query limits.
    35  func NoOpQueryLimits() QueryLimits {
    36  	return &noOpQueryLimits{}
    37  }
    38  
    39  func (q *noOpQueryLimits) FetchDocsLimit() LookbackLimit {
    40  	return &noOpLookbackLimit{}
    41  }
    42  
    43  func (q *noOpQueryLimits) BytesReadLimit() LookbackLimit {
    44  	return &noOpLookbackLimit{}
    45  }
    46  
    47  func (q *noOpQueryLimits) AggregateDocsLimit() LookbackLimit {
    48  	return &noOpLookbackLimit{}
    49  }
    50  
    51  func (q *noOpQueryLimits) AnyFetchExceeded() error {
    52  	return nil
    53  }
    54  
    55  func (q *noOpQueryLimits) Stop() {
    56  }
    57  
    58  func (q *noOpQueryLimits) Start() {
    59  }
    60  
    61  func (q *noOpLookbackLimit) Options() LookbackLimitOptions {
    62  	return LookbackLimitOptions{}
    63  }
    64  
    65  func (q *noOpLookbackLimit) Update(LookbackLimitOptions) error {
    66  	return nil
    67  }
    68  
    69  func (q *noOpLookbackLimit) Inc(int, []byte) error {
    70  	return nil
    71  }
    72  
    73  func (q *noOpLookbackLimit) Start() {
    74  }
    75  
    76  func (q *noOpLookbackLimit) Stop() {
    77  }