io.go

Documentation: github.com/containerd/cgroups/v2

     1  /*
     2     Copyright The containerd Authors.
     3  
     4     Licensed under the Apache License, Version 2.0 (the "License");
     5     you may not use this file except in compliance with the License.
     6     You may obtain a copy of the License at
     7  
     8         http://www.apache.org/licenses/LICENSE-2.0
     9  
    10     Unless required by applicable law or agreed to in writing, software
    11     distributed under the License is distributed on an "AS IS" BASIS,
    12     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13     See the License for the specific language governing permissions and
    14     limitations under the License.
    15  */
    16  
    17  package v2
    18  
    19  import "fmt"
    20  
    21  type IOType string
    22  
    23  const (
    24  	ReadBPS   IOType = "rbps"
    25  	WriteBPS  IOType = "wbps"
    26  	ReadIOPS  IOType = "riops"
    27  	WriteIOPS IOType = "wiops"
    28  )
    29  
    30  type BFQ struct {
    31  	Weight uint16
    32  }
    33  
    34  type Entry struct {
    35  	Type  IOType
    36  	Major int64
    37  	Minor int64
    38  	Rate  uint64
    39  }
    40  
    41  func (e Entry) String() string {
    42  	return fmt.Sprintf("%d:%d %s=%d", e.Major, e.Minor, e.Type, e.Rate)
    43  }
    44  
    45  type IO struct {
    46  	BFQ BFQ
    47  	Max []Entry
    48  }
    49  
    50  func (i *IO) Values() (o []Value) {
    51  	if i.BFQ.Weight != 0 {
    52  		o = append(o, Value{
    53  			filename: "io.bfq.weight",
    54  			value:    i.BFQ.Weight,
    55  		})
    56  	}
    57  	for _, e := range i.Max {
    58  		o = append(o, Value{
    59  			filename: "io.max",
    60  			value:    e.String(),
    61  		})
    62  	}
    63  	return o
    64  }
    65
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