github.com/projectatomic/docker@v1.8.2/daemon/stats_linux.go (about)

     1  package daemon
     2  
     3  import (
     4  	"github.com/docker/docker/api/types"
     5  	"github.com/opencontainers/runc/libcontainer"
     6  	"github.com/opencontainers/runc/libcontainer/cgroups"
     7  )
     8  
     9  // convertStatsToAPITypes converts the libcontainer.Stats to the api specific
    10  // structs.  This is done to preserve API compatibility and versioning.
    11  func convertStatsToAPITypes(ls *libcontainer.Stats) *types.Stats {
    12  	s := &types.Stats{}
    13  	if ls.Interfaces != nil {
    14  		s.Network = types.Network{}
    15  		for _, iface := range ls.Interfaces {
    16  			s.Network.RxBytes += iface.RxBytes
    17  			s.Network.RxPackets += iface.RxPackets
    18  			s.Network.RxErrors += iface.RxErrors
    19  			s.Network.RxDropped += iface.RxDropped
    20  			s.Network.TxBytes += iface.TxBytes
    21  			s.Network.TxPackets += iface.TxPackets
    22  			s.Network.TxErrors += iface.TxErrors
    23  			s.Network.TxDropped += iface.TxDropped
    24  		}
    25  	}
    26  
    27  	cs := ls.CgroupStats
    28  	if cs != nil {
    29  		s.BlkioStats = types.BlkioStats{
    30  			IoServiceBytesRecursive: copyBlkioEntry(cs.BlkioStats.IoServiceBytesRecursive),
    31  			IoServicedRecursive:     copyBlkioEntry(cs.BlkioStats.IoServicedRecursive),
    32  			IoQueuedRecursive:       copyBlkioEntry(cs.BlkioStats.IoQueuedRecursive),
    33  			IoServiceTimeRecursive:  copyBlkioEntry(cs.BlkioStats.IoServiceTimeRecursive),
    34  			IoWaitTimeRecursive:     copyBlkioEntry(cs.BlkioStats.IoWaitTimeRecursive),
    35  			IoMergedRecursive:       copyBlkioEntry(cs.BlkioStats.IoMergedRecursive),
    36  			IoTimeRecursive:         copyBlkioEntry(cs.BlkioStats.IoTimeRecursive),
    37  			SectorsRecursive:        copyBlkioEntry(cs.BlkioStats.SectorsRecursive),
    38  		}
    39  		cpu := cs.CpuStats
    40  		s.CpuStats = types.CpuStats{
    41  			CpuUsage: types.CpuUsage{
    42  				TotalUsage:        cpu.CpuUsage.TotalUsage,
    43  				PercpuUsage:       cpu.CpuUsage.PercpuUsage,
    44  				UsageInKernelmode: cpu.CpuUsage.UsageInKernelmode,
    45  				UsageInUsermode:   cpu.CpuUsage.UsageInUsermode,
    46  			},
    47  			ThrottlingData: types.ThrottlingData{
    48  				Periods:          cpu.ThrottlingData.Periods,
    49  				ThrottledPeriods: cpu.ThrottlingData.ThrottledPeriods,
    50  				ThrottledTime:    cpu.ThrottlingData.ThrottledTime,
    51  			},
    52  		}
    53  		mem := cs.MemoryStats
    54  		s.MemoryStats = types.MemoryStats{
    55  			Usage:    mem.Usage.Usage,
    56  			MaxUsage: mem.Usage.MaxUsage,
    57  			Stats:    mem.Stats,
    58  			Failcnt:  mem.Usage.Failcnt,
    59  		}
    60  	}
    61  
    62  	return s
    63  }
    64  
    65  func copyBlkioEntry(entries []cgroups.BlkioStatEntry) []types.BlkioStatEntry {
    66  	out := make([]types.BlkioStatEntry, len(entries))
    67  	for i, re := range entries {
    68  		out[i] = types.BlkioStatEntry{
    69  			Major: re.Major,
    70  			Minor: re.Minor,
    71  			Op:    re.Op,
    72  			Value: re.Value,
    73  		}
    74  	}
    75  	return out
    76  }