Module jdk.management

Package com.ibm.lang.management

Interface UnixOperatingSystemMXBean

All Superinterfaces:

OperatingSystemMXBean, OperatingSystemMXBean, OperatingSystemMXBean, PlatformManagedObject, UnixOperatingSystemMXBean

All Known Implementing Classes:

UnixExtendedOperatingSystem

public interface UnixOperatingSystemMXBean
extends UnixOperatingSystemMXBean, OperatingSystemMXBean

Interface provides platform-specific management utilities on Unix and Unix-like operating systems.

Since:

1.8

Method Summary

Modifier and Type	Method	Description
long	getMaxFileDescriptorCount()	Returns the maximum number of file descriptors that can be opened in a process.
long	getOpenFileDescriptorCount()	Returns the current number of file descriptors that are in opened state.

Methods declared in interface com.ibm.lang.management.OperatingSystemMXBean

getCommittedVirtualMemorySize, getFreeSwapSpaceSize, getHardwareModel, getProcessCpuLoad, getProcessCpuTime, getProcessingCapacity, getProcessPhysicalMemorySize, getProcessPrivateMemorySize, getTotalSwapSpaceSize, isHardwareEmulated, isProcessRunning, retrieveMemoryUsage, retrieveMemoryUsage, retrieveProcessorUsage, retrieveProcessorUsage, retrieveTotalProcessorUsage, retrieveTotalProcessorUsage

Methods declared in interface com.sun.management.OperatingSystemMXBean

getCpuLoad, getFreeMemorySize, getFreePhysicalMemorySize, getSystemCpuLoad, getTotalMemorySize, getTotalPhysicalMemorySize

Methods declared in interface java.lang.management.OperatingSystemMXBean

getArch, getAvailableProcessors, getName, getSystemLoadAverage, getVersion

Methods declared in interface java.lang.management.PlatformManagedObject

getObjectName

Method Details

getMaxFileDescriptorCount

long getMaxFileDescriptorCount()

Returns the maximum number of file descriptors that can be opened in a process.

Specified by:

getMaxFileDescriptorCount in interface UnixOperatingSystemMXBean

Returns:

The maximum number of file descriptors that can be opened in a process or -1, if an error occurred while obtaining this. If the operating system doesn't have any limits configured, Long.MAX_VALUE is returned.

Since:

1.8

getOpenFileDescriptorCount

long getOpenFileDescriptorCount()

Returns the current number of file descriptors that are in opened state.

Specified by:

getOpenFileDescriptorCount in interface UnixOperatingSystemMXBean

Returns:

The current number of file descriptors that are in opened state or -1, if an error occurred while obtaining this.

Since:

1.8