Package oshi.jna.platform.linux
Interface LinuxLibc
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- All Superinterfaces:
CLibrary
,com.sun.jna.platform.linux.LibC
,com.sun.jna.platform.unix.LibCAPI
,com.sun.jna.Library
,com.sun.jna.platform.unix.Reboot
,com.sun.jna.platform.unix.Resource
public interface LinuxLibc extends com.sun.jna.platform.linux.LibC, CLibrary
Linux C Library. This class should be considered non-API as it may be removed if/when its code is incorporated into the JNA project.
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Nested Class Summary
Nested Classes Modifier and Type Interface Description static class
LinuxLibc.Exit_status
Part of utmpx structurestatic class
LinuxLibc.LinuxUtmpx
Return type for getutxent()static class
LinuxLibc.Ut_Tv
32-bit timeval required for utmpx structure-
Nested classes/interfaces inherited from interface oshi.jna.platform.unix.CLibrary
CLibrary.Addrinfo, CLibrary.BsdIp6stat, CLibrary.BsdIpstat, CLibrary.BsdTcpstat, CLibrary.BsdUdpstat, CLibrary.Sockaddr
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Nested classes/interfaces inherited from interface com.sun.jna.platform.linux.LibC
com.sun.jna.platform.linux.LibC.Statvfs, com.sun.jna.platform.linux.LibC.Sysinfo
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Field Summary
Fields Modifier and Type Field Description static LinuxLibc
INSTANCE
static com.sun.jna.NativeLong
SYS_GETTID
SYS_gettid Defined in one of: arch/arm64/include/asm/unistd32.h, 224 arch/x86/include/uapi/asm/unistd_32.h, 224 arch/x86/include/uapi/asm/unistd_64.h, 186 include/uapi/asm-generic/unistd.h, 178-
Fields inherited from interface oshi.jna.platform.unix.CLibrary
AI_CANONNAME, LOGIN_PROCESS, USER_PROCESS, UT_HOSTSIZE, UT_LINESIZE, UT_NAMESIZE
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Fields inherited from interface com.sun.jna.Library
OPTION_ALLOW_OBJECTS, OPTION_CALLING_CONVENTION, OPTION_CLASSLOADER, OPTION_FUNCTION_MAPPER, OPTION_INVOCATION_MAPPER, OPTION_OPEN_FLAGS, OPTION_STRING_ENCODING, OPTION_STRUCTURE_ALIGNMENT, OPTION_SYMBOL_PROVIDER, OPTION_TYPE_MAPPER
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Fields inherited from interface com.sun.jna.platform.unix.Reboot
RB_AUTOBOOT, RB_DISABLE_CAD, RB_ENABLE_CAD, RB_HALT_SYSTEM, RB_KEXEC, RB_POWER_OFF, RB_SW_SUSPEND
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Fields inherited from interface com.sun.jna.platform.unix.Resource
RLIMIT_AS, RLIMIT_CORE, RLIMIT_CPU, RLIMIT_DATA, RLIMIT_FSIZE, RLIMIT_LOCKS, RLIMIT_MEMLOCK, RLIMIT_MSGQUEUE, RLIMIT_NICE, RLIMIT_NLIMITS, RLIMIT_NOFILE, RLIMIT_NPROC, RLIMIT_RSS, RLIMIT_RTPRIO, RLIMIT_RTTIME, RLIMIT_SIGPENDING, RLIMIT_STACK
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description int
gettid()
Returns the caller's thread ID (TID).LinuxLibc.LinuxUtmpx
getutxent()
Reads a line from the current file position in the utmp file.com.sun.jna.NativeLong
syscall(com.sun.jna.NativeLong number, java.lang.Object... args)
syscall() performs the system call whose assembly language interface has the specified number with the specified arguments.-
Methods inherited from interface oshi.jna.platform.unix.CLibrary
endutxent, freeaddrinfo, gai_strerror, getaddrinfo, getpid, open, pread, setutxent, sysctl, sysctlbyname, sysctlnametomib
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Field Detail
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INSTANCE
static final LinuxLibc INSTANCE
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SYS_GETTID
static final com.sun.jna.NativeLong SYS_GETTID
SYS_gettid Defined in one of: arch/arm64/include/asm/unistd32.h, 224 arch/x86/include/uapi/asm/unistd_32.h, 224 arch/x86/include/uapi/asm/unistd_64.h, 186 include/uapi/asm-generic/unistd.h, 178
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Method Detail
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getutxent
LinuxLibc.LinuxUtmpx getutxent()
Reads a line from the current file position in the utmp file. It returns a pointer to a structure containing the fields of the line.Not thread safe
- Returns:
- a
LinuxLibc.LinuxUtmpx
on success, and NULL on failure (which includes the "record not found" case)
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gettid
int gettid()
Returns the caller's thread ID (TID). In a single-threaded process, the thread ID is equal to the process ID. In a multithreaded process, all threads have the same PID, but each one has a unique TID.- Returns:
- the thread ID of the calling thread.
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syscall
com.sun.jna.NativeLong syscall(com.sun.jna.NativeLong number, java.lang.Object... args)
syscall() performs the system call whose assembly language interface has the specified number with the specified arguments.- Parameters:
number
- sys call numberargs
- sys call arguments- Returns:
- The return value is defined by the system call being invoked. In general, a 0 return value indicates success. A -1 return value indicates an error, and an error code is stored in errno.
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