com.sun.jna.platform.mac.SystemB Maven / Gradle / Ivy
/*
* Copyright (c) 2015 Daniel Widdis
*
* The contents of this file is dual-licensed under 2
* alternative Open Source/Free licenses: LGPL 2.1 or later and
* Apache License 2.0. (starting with JNA version 4.0.0).
*
* You can freely decide which license you want to apply to
* the project.
*
* You may obtain a copy of the LGPL License at:
*
* http://www.gnu.org/licenses/licenses.html
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "LGPL2.1".
*
* You may obtain a copy of the Apache License at:
*
* http://www.apache.org/licenses/
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "AL2.0".
*/
package com.sun.jna.platform.mac;
import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.NativeLong;
import com.sun.jna.Pointer;
import com.sun.jna.Structure;
import com.sun.jna.platform.unix.LibCAPI;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.ptr.LongByReference;
import com.sun.jna.ptr.PointerByReference;
public interface SystemB extends LibCAPI, Library {
SystemB INSTANCE = Native.load("System", SystemB.class);
// host_statistics()
int HOST_LOAD_INFO = 1;// System loading stats
int HOST_VM_INFO = 2; // Virtual memory stats
int HOST_CPU_LOAD_INFO = 3;// CPU load stats
// host_statistics64()
int HOST_VM_INFO64 = 4; // 64-bit virtual memory stats
// host_cpu_load_info()
int CPU_STATE_MAX = 4;
int CPU_STATE_USER = 0;
int CPU_STATE_SYSTEM = 1;
int CPU_STATE_IDLE = 2;
int CPU_STATE_NICE = 3;
// host_processor_info() flavor
int PROCESSOR_BASIC_INFO = 1;
int PROCESSOR_CPU_LOAD_INFO = 2;
// Data size
int UINT64_SIZE = Native.getNativeSize(long.class);
int INT_SIZE = Native.getNativeSize(int.class);
// params.h
int MAXCOMLEN = 16;
int MAXPATHLEN = 1024;
int PROC_PIDPATHINFO_MAXSIZE = MAXPATHLEN * 4;
// proc_info.h
int PROC_ALL_PIDS = 1;
int PROC_PIDTASKALLINFO = 2;
int PROC_PIDTBSDINFO = 3;
int PROC_PIDTASKINFO = 4;
int PROC_PIDVNODEPATHINFO = 9;
// length of fs type name including null
int MFSTYPENAMELEN = 16;
// length of buffer for returned name
int MNAMELEN = MAXPATHLEN;
// fsstat paths
int MNT_WAIT = 0x0001;
int MNT_NOWAIT = 0x0010;
int MNT_DWAIT = 0x0100;
// resource.h
int RUSAGE_INFO_V2 = 2;
@Structure.FieldOrder({ "cpu_ticks" })
public static class HostCpuLoadInfo extends Structure {
public int cpu_ticks[] = new int[CPU_STATE_MAX];
}
@Structure.FieldOrder({ "avenrun", "mach_factor" })
public static class HostLoadInfo extends Structure {
public int[] avenrun = new int[3]; // scaled by LOAD_SCALE
public int[] mach_factor = new int[3]; // scaled by LOAD_SCALE
}
@Structure.FieldOrder({ "free_count", "active_count", "inactive_count", "wire_count", "zero_fill_count",
"reactivations", "pageins", "pageouts", "faults", "cow_faults", "lookups", "hits", "purgeable_count",
"purges", "speculative_count" })
public static class VMStatistics extends Structure {
public int free_count; // # of pages free
public int active_count; // # of pages active
public int inactive_count; // # of pages inactive
public int wire_count; // # of pages wired down
public int zero_fill_count; // # of zero fill pages
public int reactivations; // # of pages reactivated
public int pageins; // # of pageins
public int pageouts; // # of pageouts
public int faults; // # of faults
public int cow_faults; // # of copy-on-writes
public int lookups; // object cache lookups
public int hits; // object cache hits
public int purgeable_count; // # of pages purgeable
public int purges; // # of pages purged
// # of pages speculative (included in free_count)
public int speculative_count;
}
@Structure.FieldOrder({ "free_count", "active_count", "inactive_count", "wire_count", "zero_fill_count",
"reactivations", "pageins", "pageouts", "faults", "cow_faults", "lookups", "hits", "purges",
"purgeable_count", "speculative_count", "decompressions", "compressions", "swapins", "swapouts",
"compressor_page_count", "throttled_count", "external_page_count", "internal_page_count",
"total_uncompressed_pages_in_compressor" })
public static class VMStatistics64 extends Structure {
public int free_count; // # of pages free
public int active_count; // # of pages active
public int inactive_count; // # of pages inactive
public int wire_count; // # of pages wired down
public long zero_fill_count; // # of zero fill pages
public long reactivations; // # of pages reactivated
public long pageins; // # of pageins
public long pageouts; // # of pageouts
public long faults; // # of faults
public long cow_faults; // # of copy-on-writes
public long lookups; // object cache lookups
public long hits; // object cache hits
public long purges; // # of pages purged
public int purgeable_count;
public int speculative_count;
public long decompressions; // # of pages decompressed
public long compressions; // # of pages compressed
// # of pages swapped in (via compression segments)
public long swapins;
// # of pages swapped out (via compression segments)
public long swapouts;
// # of pages used by the compressed pager to hold all the
// compressed data
public int compressor_page_count;
public int throttled_count; // # of pages throttled
// # of pages that are file-backed (non-swap)
public int external_page_count;
public int internal_page_count; // # of pages that are anonymous
// # of pages (uncompressed) held within the compressor.
public long total_uncompressed_pages_in_compressor;
}
@Structure.FieldOrder({ "pbsd", "ptinfo" })
class ProcTaskAllInfo extends Structure {
public ProcBsdInfo pbsd;
public ProcTaskInfo ptinfo;
}
@Structure.FieldOrder({ "pbi_flags", "pbi_status", "pbi_xstatus", "pbi_pid", "pbi_ppid", "pbi_uid", "pbi_gid",
"pbi_ruid", "pbi_rgid", "pbi_svuid", "pbi_svgid", "rfu_1", "pbi_comm", "pbi_name", "pbi_nfiles", "pbi_pgid",
"pbi_pjobc", "e_tdev", "e_tpgid", "pbi_nice", "pbi_start_tvsec", "pbi_start_tvusec" })
class ProcBsdInfo extends Structure {
public int pbi_flags;
public int pbi_status;
public int pbi_xstatus;
public int pbi_pid;
public int pbi_ppid;
public int pbi_uid;
public int pbi_gid;
public int pbi_ruid;
public int pbi_rgid;
public int pbi_svuid;
public int pbi_svgid;
public int rfu_1;
public byte[] pbi_comm = new byte[MAXCOMLEN];
public byte[] pbi_name = new byte[2 * MAXCOMLEN];
public int pbi_nfiles;
public int pbi_pgid;
public int pbi_pjobc;
public int e_tdev;
public int e_tpgid;
public int pbi_nice;
public long pbi_start_tvsec;
public long pbi_start_tvusec;
}
@Structure.FieldOrder({ "pti_virtual_size", "pti_resident_size", "pti_total_user", "pti_total_system",
"pti_threads_user", "pti_threads_system", "pti_policy", "pti_faults", "pti_pageins", "pti_cow_faults",
"pti_messages_sent", "pti_messages_received", "pti_syscalls_mach", "pti_syscalls_unix", "pti_csw",
"pti_threadnum", "pti_numrunning", "pti_priority" })
class ProcTaskInfo extends Structure {
public long pti_virtual_size; /* virtual memory size (bytes) */
public long pti_resident_size; /* resident memory size (bytes) */
public long pti_total_user; /* total time (nanoseconds) */
public long pti_total_system;
public long pti_threads_user; /* existing threads only */
public long pti_threads_system;
public int pti_policy; /* default policy for new threads */
public int pti_faults; /* number of page faults */
public int pti_pageins; /* number of actual pageins */
public int pti_cow_faults; /* number of copy-on-write faults */
public int pti_messages_sent; /* number of messages sent */
public int pti_messages_received; /* number of messages received */
public int pti_syscalls_mach; /* number of mach system calls */
public int pti_syscalls_unix; /* number of unix system calls */
public int pti_csw; /* number of context switches */
public int pti_threadnum; /* number of threads in the task */
public int pti_numrunning; /* number of running threads */
public int pti_priority; /* task priority */
}
@Structure.FieldOrder({ "v_swtch", "v_trap", "v_syscall", "v_intr", "v_soft", "v_faults", "v_lookups", "v_hits",
"v_vm_faults", "v_cow_faults", "v_swpin", "v_swpout", "v_pswpin", "v_pswpout", "v_pageins", "v_pageouts",
"v_pgpgin", "v_pgpgout", "v_intrans", "v_reactivated", "v_rev", "v_scan", "v_dfree", "v_pfree", "v_zfod",
"v_nzfod", "v_page_size", "v_kernel_pages", "v_free_target", "v_free_min", "v_free_count", "v_wire_count",
"v_active_count", "v_inactive_target", "v_inactive_count" })
class VMMeter extends Structure {
/*
* General system activity.
*/
public int v_swtch; /* context switches */
public int v_trap; /* calls to trap */
public int v_syscall; /* calls to syscall() */
public int v_intr; /* device interrupts */
public int v_soft; /* software interrupts */
public int v_faults; /* total faults taken */
/*
* Virtual memory activity.
*/
public int v_lookups; /* object cache lookups */
public int v_hits; /* object cache hits */
public int v_vm_faults; /* number of address memory faults */
public int v_cow_faults; /* number of copy-on-writes */
public int v_swpin; /* swapins */
public int v_swpout; /* swapouts */
public int v_pswpin; /* pages swapped in */
public int v_pswpout; /* pages swapped out */
public int v_pageins; /* number of pageins */
public int v_pageouts; /* number of pageouts */
public int v_pgpgin; /* pages paged in */
public int v_pgpgout; /* pages paged out */
public int v_intrans; /* intransit blocking page faults */
public int v_reactivated; /*
* number of pages reactivated from free list
*/
public int v_rev; /* revolutions of the hand */
public int v_scan; /* scans in page out daemon */
public int v_dfree; /* pages freed by daemon */
public int v_pfree; /* pages freed by exiting processes */
public int v_zfod; /* pages zero filled on demand */
public int v_nzfod; /* number of zfod's created */
/*
* Distribution of page usages.
*/
public int v_page_size; /* page size in bytes */
public int v_kernel_pages; /* number of pages in use by kernel */
public int v_free_target; /* number of pages desired free */
public int v_free_min; /* minimum number of pages desired free */
public int v_free_count; /* number of pages free */
public int v_wire_count; /* number of pages wired down */
public int v_active_count; /* number of pages active */
public int v_inactive_target; /* number of pages desired inactive */
public int v_inactive_count; /* number of pages inactive */
}
@Structure.FieldOrder({ "ri_uuid", "ri_user_time", "ri_system_time", "ri_pkg_idle_wkups", "ri_interrupt_wkups",
"ri_pageins", "ri_wired_size", "ri_resident_size", "ri_phys_footprint", "ri_proc_start_abstime",
"ri_proc_exit_abstime", "ri_child_user_time", "ri_child_system_time", "ri_child_pkg_idle_wkups",
"ri_child_interrupt_wkups", "ri_child_pageins", "ri_child_elapsed_abstime", "ri_diskio_bytesread",
"ri_diskio_byteswritten" })
class RUsageInfoV2 extends Structure {
public byte[] ri_uuid = new byte[16];
public long ri_user_time;
public long ri_system_time;
public long ri_pkg_idle_wkups;
public long ri_interrupt_wkups;
public long ri_pageins;
public long ri_wired_size;
public long ri_resident_size;
public long ri_phys_footprint;
public long ri_proc_start_abstime;
public long ri_proc_exit_abstime;
public long ri_child_user_time;
public long ri_child_system_time;
public long ri_child_pkg_idle_wkups;
public long ri_child_interrupt_wkups;
public long ri_child_pageins;
public long ri_child_elapsed_abstime;
public long ri_diskio_bytesread;
public long ri_diskio_byteswritten;
}
@Structure.FieldOrder({ "vip_vi", "vip_path" })
class VnodeInfoPath extends Structure {
public byte[] vip_vi = new byte[152]; // vnode_info but we don't
// need its data
public byte[] vip_path = new byte[MAXPATHLEN];
}
@Structure.FieldOrder({ "pvi_cdir", "pvi_rdir" })
class VnodePathInfo extends Structure {
public VnodeInfoPath pvi_cdir;
public VnodeInfoPath pvi_rdir;
}
/**
* The statfs() routine returns information about a mounted file system. The
* path argument is the path name of any file or directory within the mounted
* file system. The buf argument is a pointer to a statfs structure.
*/
@Structure.FieldOrder({ "f_bsize", "f_iosize", "f_blocks", "f_bfree", "f_bavail", "f_files", "f_ffree", "f_fsid",
"f_owner", "f_type", "f_flags", "f_fssubtype", "f_fstypename", "f_mntonname", "f_mntfromname",
"f_reserved" })
class Statfs extends Structure {
public int f_bsize; /* fundamental file system block size */
public int f_iosize; /* optimal transfer block size */
public long f_blocks; /* total data blocks in file system */
public long f_bfree; /* free blocks in fs */
public long f_bavail; /* free blocks avail to non-superuser */
public long f_files; /* total file nodes in file system */
public long f_ffree; /* free file nodes in fs */
public int[] f_fsid = new int[2]; /* file system id */
public int f_owner; /* user that mounted the filesystem */
public int f_type; /* type of filesystem */
public int f_flags; /* copy of mount exported flags */
public int f_fssubtype; /* fs sub-type (flavor) */
/* fs type name */
public byte[] f_fstypename = new byte[MFSTYPENAMELEN];
/* directory on which mounted */
public byte[] f_mntonname = new byte[MAXPATHLEN];
/* mounted filesystem */
public byte[] f_mntfromname = new byte[MAXPATHLEN];
public int[] f_reserved = new int[8]; /* For future use */
}
/**
* Return type for sysctl vm.swapusage
*/
@Structure.FieldOrder({ "xsu_total", "xsu_avail", "xsu_used", "xsu_pagesize", "xsu_encrypted" })
class XswUsage extends Structure {
public long xsu_total;
public long xsu_avail;
public long xsu_used;
public int xsu_pagesize;
public boolean xsu_encrypted;
}
/**
* Data type as part of IFmsgHdr
*/
@Structure.FieldOrder({ "ifi_type", "ifi_typelen", "ifi_physical", "ifi_addrlen", "ifi_hdrlen", "ifi_recvquota",
"ifi_xmitquota", "ifi_unused1", "ifi_mtu", "ifi_metric", "ifi_baudrate", "ifi_ipackets", "ifi_ierrors",
"ifi_opackets", "ifi_oerrors", "ifi_collisions", "ifi_ibytes", "ifi_obytes", "ifi_imcasts", "ifi_omcasts",
"ifi_iqdrops", "ifi_noproto", "ifi_recvtiming", "ifi_xmittiming", "ifi_lastchange", "ifi_unused2",
"ifi_hwassist", "ifi_reserved1", "ifi_reserved2" })
class IFdata extends Structure {
public byte ifi_type; // ethernet, tokenring, etc
public byte ifi_typelen; // Length of frame type id
public byte ifi_physical; // e.g., AUI, Thinnet, 10base-T, etc
public byte ifi_addrlen; // media address length
public byte ifi_hdrlen; // media header length
public byte ifi_recvquota; // polling quota for receive intrs
public byte ifi_xmitquota; // polling quota for xmit intrs
public byte ifi_unused1; // for future use
public int ifi_mtu; // maximum transmission unit
public int ifi_metric; // routing metric (external only)
public int ifi_baudrate; // linespeed
public int ifi_ipackets; // packets received on interface
public int ifi_ierrors; // input errors on interface
public int ifi_opackets; // packets sent on interface
public int ifi_oerrors; // output errors on interface
public int ifi_collisions; // collisions on csma interfaces
public int ifi_ibytes; // total number of octets received
public int ifi_obytes; // total number of octets sent
public int ifi_imcasts; // packets received via multicast
public int ifi_omcasts; // packets sent via multicast
public int ifi_iqdrops; // dropped on input, this interface
public int ifi_noproto; // destined for unsupported protocol
public int ifi_recvtiming; // usec spent receiving when timing
public int ifi_xmittiming; // usec spent xmitting when timing
public Timeval ifi_lastchange; // time of last administrative change
public int ifi_unused2; // used to be the default_proto
public int ifi_hwassist; // HW offload capabilities
public int ifi_reserved1; // for future use
public int ifi_reserved2; // for future use
}
/**
* Return type for sysctl CTL_NET,PF_ROUTE
*/
@Structure.FieldOrder({ "ifm_msglen", "ifm_version", "ifm_type", "ifm_addrs", "ifm_flags", "ifm_index",
"ifm_data" })
class IFmsgHdr extends Structure {
public short ifm_msglen; // to skip over non-understood messages
public byte ifm_version; // future binary compatability
public byte ifm_type; // message type
public int ifm_addrs; // like rtm_addrs
public int ifm_flags; // value of if_flags
public short ifm_index; // index for associated ifp
public IFdata ifm_data; // statistics and other data about if
public IFmsgHdr() {
super();
}
public IFmsgHdr(Pointer p) {
super(p);
}
}
/**
* Data type as part of IFmsgHdr
*/
@Structure.FieldOrder({ "ifi_type", "ifi_typelen", "ifi_physical", "ifi_addrlen", "ifi_hdrlen", "ifi_recvquota",
"ifi_xmitquota", "ifi_unused1", "ifi_mtu", "ifi_metric", "ifi_baudrate", "ifi_ipackets", "ifi_ierrors",
"ifi_opackets", "ifi_oerrors", "ifi_collisions", "ifi_ibytes", "ifi_obytes", "ifi_imcasts", "ifi_omcasts",
"ifi_iqdrops", "ifi_noproto", "ifi_recvtiming", "ifi_xmittiming", "ifi_lastchange" })
class IFdata64 extends Structure {
public byte ifi_type; // ethernet, tokenring, etc
public byte ifi_typelen; // Length of frame type id
public byte ifi_physical; // e.g., AUI, Thinnet, 10base-T, etc
public byte ifi_addrlen; // media address length
public byte ifi_hdrlen; // media header length
public byte ifi_recvquota; // polling quota for receive intrs
public byte ifi_xmitquota; // polling quota for xmit intrs
public byte ifi_unused1; // for future use
public int ifi_mtu; // maximum transmission unit
public int ifi_metric; // routing metric (external only)
public long ifi_baudrate; // linespeed
public long ifi_ipackets; // packets received on interface
public long ifi_ierrors; // input errors on interface
public long ifi_opackets; // packets sent on interface
public long ifi_oerrors; // output errors on interface
public long ifi_collisions; // collisions on csma interfaces
public long ifi_ibytes; // total number of octets received
public long ifi_obytes; // total number of octets sent
public long ifi_imcasts; // packets received via multicast
public long ifi_omcasts; // packets sent via multicast
public long ifi_iqdrops; // dropped on input, this interface
public long ifi_noproto; // destined for unsupported protocol
public int ifi_recvtiming; // usec spent receiving when timing
public int ifi_xmittiming; // usec spent xmitting when timing
public Timeval ifi_lastchange; // time of last administrative change
}
/**
* Return type for sysctl CTL_NET,PF_ROUTE
*/
@Structure.FieldOrder({ "ifm_msglen", "ifm_version", "ifm_type", "ifm_addrs", "ifm_flags", "ifm_index",
"ifm_snd_len", "ifm_snd_maxlen", "ifm_snd_drops", "ifm_timer", "ifm_data" })
class IFmsgHdr2 extends Structure {
public short ifm_msglen; // to skip over non-understood messages
public byte ifm_version; // future binary compatability
public byte ifm_type; // message type
public int ifm_addrs; // like rtm_addrs
public int ifm_flags; // value of if_flags
public short ifm_index; // index for associated ifp
public int ifm_snd_len; // instantaneous length of send queue
public int ifm_snd_maxlen; // maximum length of send queue
public int ifm_snd_drops; // number of drops in send queue
public int ifm_timer; // time until if_watchdog called
public IFdata64 ifm_data; // statistics and other data about if
public IFmsgHdr2(Pointer p) {
super(p);
}
}
/**
* Return type for getpwuid
*/
@Structure.FieldOrder({ "pw_name", "pw_passwd", "pw_uid", "pw_gid", "pw_change", "pw_class", "pw_gecos", "pw_dir",
"pw_shell", "pw_expire", "pw_fields" })
class Passwd extends Structure {
public String pw_name; // user name
public String pw_passwd; // encrypted password
public int pw_uid; // user uid
public int pw_gid; // user gid
public NativeLong pw_change; // password change time
public String pw_class; // user access class
public String pw_gecos; // Honeywell login info
public String pw_dir; // home directory
public String pw_shell; // default shell
public NativeLong pw_expire; // account expiration
public int pw_fields; // internal: fields filled in
}
/**
* Return type for getgrgid
*/
@Structure.FieldOrder({ "gr_name", "gr_passwd", "gr_gid", "gr_mem" })
class Group extends Structure {
public String gr_name; /* group name */
public String gr_passwd; /* group password */
public int gr_gid; /* group id */
public PointerByReference gr_mem; /* group members */
}
/**
* Time value
*/
@Structure.FieldOrder({ "tv_sec", "tv_usec" })
class Timeval extends Structure {
public NativeLong tv_sec; // seconds
public int tv_usec; // microseconds
}
/**
* Time Zone
*/
@Structure.FieldOrder({ "tz_minuteswest", "tz_dsttime" })
class Timezone extends Structure {
public int tz_minuteswest; /* of Greenwich */
public int tz_dsttime; /* type of dst correction to apply */
}
/**
* The system's notion of the current Greenwich time and the current time zone
* is obtained with the gettimeofday() call, and set with the settimeofday()
* call. The time is expressed in seconds and microseconds since midnight (0
* hour), January 1, 1970. The resolution of the system clock is hardware
* dependent, and the time may be updated continuously or in ``ticks.'' If tp is
* NULL and tzp is non-NULL, gettimeofday() will populate the timezone struct in
* tzp. If tp is non-NULL and tzp is NULL, then only the timeval struct in tp is
* populated. If both tp and tzp are NULL, nothing is returned.
*
* @param tp
* Timeval structure
* @param tzp
* Timezone structure
* @return A 0 return value indicates that the call succeeded. A -1 return value
* indicates an error occurred, and in this case an error code is stored
* into the global variable errno.
*/
int gettimeofday(Timeval tp, Timezone tzp);
/**
* The mach_host_self system call returns the calling thread's host name port.
* It has an effect equivalent to receiving a send right for the host port.
*
* @return the host's name port
*/
int mach_host_self();
/**
* The mach_task_self system call returns the calling thread's task_self port.
* It has an effect equivalent to receiving a send right for the task's kernel
* port.
*
* @return the task's kernel port
*/
int mach_task_self();
/**
* Decrement the target port right's user reference count.
*
* @param port
* The port holding the right.
* @param name
* The port's name for the right.
* @return 0 if successful, a {@code kern_return_t} code otherwise.
*/
int mach_port_deallocate(int port, int name);
/**
* The host_page_size function returns the page size for the given host.
*
* @param hostPort
* The name (or control) port for the host for which the page size is
* desired.
* @param pPageSize
* The host's page size (in bytes), set on success.
* @return 0 on success; sets errno on failure
*/
int host_page_size(int hostPort, LongByReference pPageSize);
/**
* The host_statistics function returns scheduling and virtual memory statistics
* concerning the host as specified by hostStat.
*
* @param hostPort
* The control port for the host for which information is to be
* obtained.
* @param hostStat
* The type of statistics desired ({@link #HOST_LOAD_INFO},
* {@link #HOST_VM_INFO}, or {@link #HOST_CPU_LOAD_INFO})
* @param stats
* Statistics about the specified host.
* @param count
* On input, the maximum size of the buffer; on output, the size
* returned (in natural-sized units).
* @return 0 on success; sets errno on failure
*/
int host_statistics(int hostPort, int hostStat, Structure stats, IntByReference count);
/**
* The host_statistics64 function returns 64-bit virtual memory statistics
* concerning the host as specified by hostStat.
*
* @param hostPort
* The control port for the host for which information is to be
* obtained.
* @param hostStat
* The type of statistics desired ({@link #HOST_VM_INFO64})
* @param stats
* Statistics about the specified host.
* @param count
* On input, the maximum size of the buffer; on output, the size
* returned (in natural-sized units).
* @return 0 on success; sets errno on failure
*/
int host_statistics64(int hostPort, int hostStat, Structure stats, IntByReference count);
/**
* The sysctl() function retrieves system information and allows processes with
* appropriate privileges to set system information. The information available
* from sysctl() consists of integers, strings, and tables.
*
* The state is described using a "Management Information Base" (MIB) style
* name, listed in name, which is a namelen length array of integers.
*
* The information is copied into the buffer specified by oldp. The size of the
* buffer is given by the location specified by oldlenp before the call, and
* that location gives the amount of data copied after a successful call and
* after a call that returns with the error code ENOMEM. If the amount of data
* available is greater than the size of the buffer supplied, the call supplies
* as much data as fits in the buffer provided and returns with the error code
* ENOMEM. If the old value is not desired, oldp and oldlenp should be set to
* NULL.
*
* The size of the available data can be determined by calling sysctl() with the
* NULL argument for oldp. The size of the available data will be returned in
* the location pointed to by oldlenp. For some operations, the amount of space
* may change often. For these operations, the system attempts to round up so
* that the returned size is large enough for a call to return the data shortly
* thereafter.
*
* To set a new value, newp is set to point to a buffer of length newlen from
* which the requested value is to be taken. If a new value is not to be set,
* newp should be set to NULL and newlen set to 0.
*
* @param name
* a Management Information Base (MIB) array of integers
* @param namelen
* the length of the array in {@code name}
* @param oldp
* A buffer to hold the information retrieved
* @param oldlenp
* Size of the buffer, a pointer to a {@link com.sun.jna.platform.unix.LibCAPI.size_t} value
* @param newp
* To set a new value, a buffer of information to be written. May be
* null if no value is to be set.
* @param newlen
* Size of the information to be written. May be 0 if no value is to
* be set.
* @return 0 on success; sets errno on failure
*/
int sysctl(int[] name, int namelen, Pointer oldp, size_t.ByReference oldlenp, Pointer newp, size_t newlen);
/**
* @deprecated Use
* {@link #sysctl(int[], int, Pointer, com.sun.jna.platform.unix.LibCAPI.size_t.ByReference, Pointer, com.sun.jna.platform.unix.LibCAPI.size_t)}
*/
@Deprecated
int sysctl(int[] name, int namelen, Pointer oldp, IntByReference oldlenp, Pointer newp, int newlen);
/**
* The sysctlbyname() function accepts an ASCII representation of the name and
* internally looks up the integer name vector. Apart from that, it behaves the
* same as the standard sysctl() function.
*
* @param name
* ASCII representation of the MIB name
* @param oldp
* A buffer to hold the information retrieved
* @param oldlenp
* Size of the buffer, a pointer to a {@link com.sun.jna.platform.unix.LibCAPI.size_t} value
* @param newp
* To set a new value, a buffer of information to be written. May be
* null if no value is to be set.
* @param newlen
* Size of the information to be written. May be 0 if no value is to
* be set.
* @return 0 on success; sets errno on failure
*/
int sysctlbyname(String name, Pointer oldp, size_t.ByReference oldlenp, Pointer newp, size_t newlen);
/**
* @deprecated Use
* {@link #sysctlbyname(String, Pointer, com.sun.jna.platform.unix.LibCAPI.size_t.ByReference, Pointer, com.sun.jna.platform.unix.LibCAPI.size_t)}
*/
@Deprecated
int sysctlbyname(String name, Pointer oldp, IntByReference oldlenp, Pointer newp, int newlen);
/**
* This function accepts an ASCII representation of the name, looks up the
* integer name vector, and returns the numeric representation in the mib array
* pointed to by mibp. The number of elements in the mib array is given by the
* location specified by sizep before the call, and that location gives the
* number of entries copied after a successful call. The resulting mib and size
* may be used in subsequent sysctl() calls to get the data associated with the
* requested ASCII name. This interface is intended for use by applications that
* want to repeatedly request the same variable (the sysctl() function runs in
* about a third the time as the same request made via the sysctlbyname()
* function).
*
* The number of elements in the mib array can be determined by calling
* sysctlnametomib() with the NULL argument for mibp.
*
* The sysctlnametomib() function is also useful for fetching mib prefixes. If
* size on input is greater than the number of elements written, the array still
* contains the additional elements which may be written programmatically.
*
* @param name
* ASCII representation of the name
* @param mibp
* Integer array containing the corresponding name vector.
* @param sizep
* On input, number of elements in the returned array; on output, the
* number of entries copied.
* @return 0 on success; sets errno on failure
*/
int sysctlnametomib(String name, Pointer mibp, size_t.ByReference sizep);
/**
* @deprecated Use {@link #sysctlnametomib(String, Pointer, com.sun.jna.platform.unix.LibCAPI.size_t.ByReference)}
*/
@Deprecated
int sysctlnametomib(String name, Pointer mibp, IntByReference sizep);
/**
* The host_processor_info function returns information about processors.
*
* @param hostPort
* The control port for the host for which information is to be
* obtained.
* @param flavor
* The type of information requested.
* @param procCount
* Pointer to the number of processors
* @param procInfo
* Pointer to the structure corresponding to the requested flavor
* @param procInfoCount
* Pointer to number of elements in the returned structure
* @return 0 on success; sets errno on failure
*/
int host_processor_info(int hostPort, int flavor, IntByReference procCount, PointerByReference procInfo,
IntByReference procInfoCount);
/**
* This function searches the password database for the given user uid, always
* returning the first one encountered.
*
* @param uid
* The user ID
* @return a Passwd structure matching that user
*/
Passwd getpwuid(int uid);
/**
* This function searches the group database for the given group name pointed to
* by the group id given by gid, returning the first one encountered. Identical
* group gids may result in undefined behavior.
*
* @param gid
* The group ID
* @return a Group structure matching that group
*/
Group getgrgid(int gid);
/**
* Search through the current processes
*
* @param type
* types of processes to be searched
* @param typeinfo
* adjunct information for type
* @param buffer
* a C array of int-sized values to be filled with process
* identifiers that hold an open file reference matching the
* specified path or volume. Pass NULL to obtain the minimum buffer
* size needed to hold the currently active processes.
* @param buffersize
* the size (in bytes) of the provided buffer.
* @return the number of bytes of data returned in the provided buffer; -1 if an
* error was encountered;
*/
int proc_listpids(int type, int typeinfo, int[] buffer, int buffersize);
/**
* Return in buffer a proc_*info structure corresponding to the flavor for the
* specified process
*
* @param pid
* the process identifier
* @param flavor
* the type of information requested
* @param arg
* argument possibly needed for some flavors
* @param buffer
* holds results
* @param buffersize
* size of results
* @return the number of bytes of data returned in the provided buffer; -1 if an
* error was encountered;
*/
int proc_pidinfo(int pid, int flavor, long arg, Structure buffer, int buffersize);
/**
* Return in buffer the name of the specified process
*
* @param pid
* the process identifier
* @param buffer
* holds results
* @param buffersize
* size of results
* @return the length of the name returned in buffer if successful; 0 otherwise
*/
int proc_pidpath(int pid, Pointer buffer, int buffersize);
/**
* Return resource usage information for the given pid, which can be a live
* process or a zombie.
*
* @param pid
* the process identifier
* @param flavor
* the type of information requested
* @param buffer
* holds results
* @return 0 on success; or -1 on failure, with errno set to indicate the
* specific error.
*/
int proc_pid_rusage(int pid, int flavor, RUsageInfoV2 buffer);
/**
* The getfsstat() function returns information about all mounted file systems.
* The buf argument is a pointer to an array of statfs structures.
*
* Fields that are undefined for a particular file system are set to -1. The
* buffer is filled with an array of statfs structures, one for each mounted
* file system up to the size specified by bufsize.
*
* @param buf
* Array of statfs structures that will be filled with results. If
* buf is given as NULL, getfsstat() returns just the number of
* mounted file systems.
* @param bufsize
* Size of the buffer to fill
* @param flags
* If flags is set to MNT_NOWAIT, getfsstat() will directly return
* the information retained in the kernel to avoid delays caused by
* waiting for updated information from a file system that is perhaps
* temporarily unable to respond. Some of the information returned
* may be out of date, however; if flags is set to MNT_WAIT or
* MNT_DWAIT instead, getfsstat() will request updated information
* from each mounted filesystem before returning.
* @return Upon successful completion, the number of statfs structures is
* returned. Otherwise, -1 is returned and the global variable errno is
* set to indicate the error.
*/
int getfsstat64(Statfs[] buf, int bufsize, int flags);
/**
* Returns the process ID of the calling process. The ID is guaranteed to be
* unique and is useful for constructing temporary file names.
*
* @return the process ID of the calling process.
*/
int getpid();
}