github.com/lazyboychen7/engine@v17.12.1-ce-rc2+incompatible/daemon/stats/types.go (about)

     1  package stats
     2  
     3  import (
     4  	"bufio"
     5  	"sync"
     6  	"time"
     7  
     8  	"github.com/docker/docker/api/types"
     9  	"github.com/docker/docker/container"
    10  	"github.com/docker/docker/pkg/pubsub"
    11  )
    12  
    13  type supervisor interface {
    14  	// GetContainerStats collects all the stats related to a container
    15  	GetContainerStats(container *container.Container) (*types.StatsJSON, error)
    16  }
    17  
    18  // NewCollector creates a stats collector that will poll the supervisor with the specified interval
    19  func NewCollector(supervisor supervisor, interval time.Duration) *Collector {
    20  	s := &Collector{
    21  		interval:   interval,
    22  		supervisor: supervisor,
    23  		publishers: make(map[*container.Container]*pubsub.Publisher),
    24  		bufReader:  bufio.NewReaderSize(nil, 128),
    25  	}
    26  
    27  	platformNewStatsCollector(s)
    28  
    29  	return s
    30  }
    31  
    32  // Collector manages and provides container resource stats
    33  type Collector struct {
    34  	m          sync.Mutex
    35  	supervisor supervisor
    36  	interval   time.Duration
    37  	publishers map[*container.Container]*pubsub.Publisher
    38  	bufReader  *bufio.Reader
    39  
    40  	// The following fields are not set on Windows currently.
    41  	clockTicksPerSecond uint64
    42  }