- All Superinterfaces:
OperatingSystemMXBean
,OperatingSystemMXBean
,OperatingSystemMXBean
,PlatformManagedObject
,UnixOperatingSystemMXBean
- All Known Implementing Classes:
UnixExtendedOperatingSystem
Interface provides platform-specific management utilities on Unix and Unix-like
operating systems.
- Since:
- 1.8
-
Method Summary
Modifier and TypeMethodDescriptionlong
Returns the maximum number of file descriptors that can be opened in a process.long
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, getProcessCpuTimeByNS, getProcessingCapacity, getProcessPhysicalMemorySize, getProcessPrivateMemorySize, getProcessVirtualMemorySize, getTotalPhysicalMemory, 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 interfaceUnixOperatingSystemMXBean
- 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 interfaceUnixOperatingSystemMXBean
- Returns:
- The current number of file descriptors that are in opened state or -1, if an error occurred while obtaining this.
- Since:
- 1.8
-