procps/doc/libproc.3

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.TH LIBPROC 3 2016-04-19 "libproc-2"
.\" Please adjust this date whenever revising the manpage.
.\"
.SH NAME
libproc \-
Miscelleanous information about libproc

.SH SYNOPSIS
.B #include <proc/procps.h>

Link with \fI\-lprocps\fR.

.SH DESCRIPTION
This manual describes some of the anciallary information about the
libproc library.

.SS PID ITEMS
The enum \fIpids_item\fR is used by the functions
.BR procps_pids_new (3),
.BR procps_pids_reset "(3) and"
.BR procps_pids_sort (3).
The following items can be fetched for a process:
.TS
l l l
---
lB l l.
Item	Type	Description
PROCPS_PIDS_ADDR_END_CODE	ul_int	The address below which program text can run
PROCPS_PIDS_ADDR_KSTK_EIP	ul_int	Instruction pointer
PROCPS_PIDS_ADDR_KSTK_ESP	ul_int	Stack pointer
PROCPS_PIDS_ADDR_START_CODE	ul_int	The address above which program text can run
PROCPS_PIDS_ADDR_START_STACK	ul_int	Address of the start (bottom) of the stack
PROCPS_PIDS_ALARM	sl_int	??
PROCPS_PIDS_CGNAME	str	The name of the control group for the process
PROCPS_PIDS_CGROUP	str	List of control groups
PROCPS_PIDS_CGROUP_V	strv	List of control groups
PROCPS_PIDS_CMD	str	Command name (only the executable name)
PROCPS_PIDS_CMDLINE	str	Full command line
PROCPS_PIDS_CMDLINE_V	strv	Full command line
PROCPS_PIDS_ENVIRON	str	The process environment
PROCPS_PIDS_ENVIRON_V	strv	The process environment
PROCPS_PIDS_EXIT_SIGNAL	s_int	Signal sent to parent when this process dies
PROCPS_PIDS_FLAGS	ul_int	Process flags
PROCPS_PIDS_FLT_MAJ	ul_int	Number of major page faults
PROCPS_PIDS_FLT_MAJ_C	ul_int	Cumulative major page faults
PROCPS_PIDS_FLT_MAJ_DELTA	ul_int	Number of major page faults since last fetch
PROCPS_PIDS_FLT_MIN	ul_int	Number of minor page faults
PROCPS_PIDS_FLT_MIN_C	ul_int	Culmative minor page faults
PROCPS_PIDS_FLT_MIN_DELTA	ul_int	Number of minor page faults since last fetch
PROCPS_PIDS_ID_EGID	u_int	Effective group ID number
PROCPS_PIDS_ID_EGROUP	str	Effective group name
PROCPS_PIDS_ID_EUID	u_int	Effective user ID number
PROCPS_PIDS_ID_EUSER	str	Effective user name
PROCPS_PIDS_ID_FGID	u_int	File system access group ID number
PROCPS_PIDS_ID_FGROUP	str	File system access group name
PROCPS_PIDS_ID_FUID	u_int	File system access user ID number
PROCPS_PIDS_ID_FUSER	str	File system access user name
PROCPS_PIDS_ID_PGRP	s_int	Process group ID, or process ID of group leader
PROCPS_PIDS_ID_PID	s_int	Proccess ID number
PROCPS_PIDS_ID_PPID	s_int	Process ID number of parent
PROCPS_PIDS_ID_RGID	u_int	Real group ID number
PROCPS_PIDS_ID_RGROUP	str	Real group name
PROCPS_PIDS_ID_RUID	u_int	Real user ID number
PROCPS_PIDS_ID_RUSER	str	Real user name
PROCPS_PIDS_ID_SESSION	s_int	Session ID number, or process ID of session leader
PROCPS_PIDS_ID_SGID	u_int	Saved group ID number
PROCPS_PIDS_ID_SGROUP	str	Saved group name
PROCPS_PIDS_ID_SUID	u_int	Saved user ID number
PROCPS_PIDS_ID_SUSER	str	Saved user nameSaved user name
PROCPS_PIDS_ID_TGID	s_int	Thread group ID number, or process ID of thread group leader
PROCPS_PIDS_ID_TPGID	s_int	Process ID of foreground process group on the tty
PROCPS_PIDS_LXCNAME	str	Linux container name
PROCPS_PIDS_MEM_CODE	sl_int	??
PROCPS_PIDS_MEM_CODE_KIB	ul_int	??
PROCPS_PIDS_MEM_DATA	sl_int	??
PROCPS_PIDS_MEM_DATA_KIB	ul_int	??
PROCPS_PIDS_MEM_DT	sl_int	??
PROCPS_PIDS_MEM_LRS	sl_int	??
PROCPS_PIDS_MEM_RES	sl_int	Resident set size
PROCPS_PIDS_MEM_RES_KIB	ul_int	Resident set size
PROCPS_PIDS_MEM_SHR	sl_int	Shared memory
PROCPS_PIDS_MEM_SHR_KIB	ul_int	Shared memory
PROCPS_PIDS_MEM_VIRT	sl_int	Virtual memory
PROCPS_PIDS_MEM_VIRT_KIB	ul_int	Virtual memory
PROCPS_PIDS_NICE	sl_int	Nice value
PROCPS_PIDS_NLWP	s_int	Number of lwps (threads) in the process
PROCPS_PIDS_NS_IPC	ul_int	Current IPC namespace
PROCPS_PIDS_NS_MNT	ul_int	Current mount namespace
PROCPS_PIDS_NS_NET	ul_int	Current network namespace
PROCPS_PIDS_NS_PID	ul_int	Current PID namespace
PROCPS_PIDS_NS_USER	ul_int	Current user namespace
PROCPS_PIDS_NS_UTS	ul_int	Current UTC namespace
PROCPS_PIDS_OOM_ADJ	s_int	Out Of Memory Adjust
PROCPS_PIDS_OOM_SCORE	s_int	Process Out Of Memory Score
PROCPS_PIDS_PRIORITY	s_int	Kernel scheduling priority
PROCPS_PIDS_PROCESSOR	u_int	Current CPU the process is running on
PROCPS_PIDS_RSS		sl_int	Resident set size
PROCPS_PIDS_RSS_RLIM	ul_int	Soft limit of RSS in bytes
PROCPS_PIDS_RTPRIO	ul_int	Realtime priority
PROCPS_PIDS_SCHED_CLASS	ul_int	Scheduling class, see \fBsched\fR(7)
PROCPS_PIDS_SD_MACH	str	Systemd machine name
PROCPS_PIDS_SD_OUID	str	Systemd owner user ID
PROCPS_PIDS_SD_SEAT	str	Systemd seat
PROCPS_PIDS_SD_SESS	str	Systemd session
PROCPS_PIDS_SD_SLICE	str	Systemd slice
PROCPS_PIDS_SD_UNIT	str	Systemd unit
PROCPS_PIDS_SD_UUNIT	str	Systemd user unit
PROCPS_PIDS_SIGBLOCKED	str	Bitmap of blocked signals
PROCPS_PIDS_SIGCATCH	str	Bitmap of caught signals
PROCPS_PIDS_SIGIGNORE	str	Bitmap of ignored signals
PROCPS_PIDS_SIGNALS	str	Bitmap of pending signals
PROCPS_PIDS_SIGPENDING	str	Bitmap of pending signals
PROCPS_PIDS_STATE	s_ch	Process state codes
PROCPS_PIDS_SUPGIDS	str	IDs of the supplementary groups
PROCPS_PIDS_SUPGROUPS	str	Name of the supplementary groups
PROCPS_PIDS_TICS_ALL	ull_int	Sum of user and system time
PROCPS_PIDS_TICS_ALL_C	ull_int	Cumulative sum of user and system time
PROCPS_PIDS_TICS_DELTA	u_int	Difference of sum of user and system time since last fetch
PROCPS_PIDS_TICS_SYSTEM	ull_int	Amount of time process has been in system mode in ticks
PROCPS_PIDS_TICS_SYSTEM_C	ull_int	??
PROCPS_PIDS_TICS_USER	ull_int	Amount of time process has been scheduled in user mode in ticks
PROCPS_PIDS_TICS_USER_C	ull_int	??
PROCPS_PIDS_TIME_ALL	ull_int	??
PROCPS_PIDS_TIME_ELAPSED	ull_int	Total seconds since process started
PROCPS_PIDS_TIME_START	ull_int	Time the process started
PROCPS_PIDS_TTY	s_int	Controlling terminal ID number
PROCPS_PIDS_TTY_NAME	str	Controlling terminal name
PROCPS_PIDS_TTY_NUMBER	str	Controlling terminal number
PROCPS_PIDS_VM_DATA	ul_int	??
PROCPS_PIDS_VM_EXE	ul_int	??
PROCPS_PIDS_VM_LIB	ul_int	??
PROCPS_PIDS_VM_LOCK	ul_int	??
PROCPS_PIDS_VM_RSS	ul_int	??
PROCPS_PIDS_VM_RSS_ANON	ul_int	??
PROCPS_PIDS_VM_RSS_FILE	ul_int	??
PROCPS_PIDS_VM_RSS_LOCKED	ul_int	??
PROCPS_PIDS_VM_RSS_SHARED	ul_int	??
PROCPS_PIDS_VM_SIZE	ul_int	??
PROCPS_PIDS_VM_STACK	ul_int	??
PROCPS_PIDS_VM_SWAP	ul_int	??
PROCPS_PIDS_VM_USED	ul_int	??
PROCPS_PIDS_VSIZE_PGS	ul_int	??
PROCPS_PIDS_WCHAN_ADDR	ul_int	Address of the kernel function in which the process is sleeping.
PROCPS_PIDS_WCHAN_NAME	str	Name of the kernel function in which the process is sleeping.
.TE

.SS PIDS STACK
The structure \fIstruct pids_stack\fR is a stack or list of information
about a particular process. To extract the values out of the stack, the
macro \fBPROCPS_PIDS_VAL\fR is used the following way
.PP
.RI \fBPROCPS_PIDS_VAL\fR( index , type , stack )
where:
.TP
.I index
is the index of the \fIitems\fR defined with the function
.BR procps_pids_new (3)
.TP
.I type
is one of the \fIitem_types\fR(see below)
.TP
.I stack
is the stack returned by \fBprocps_pids_read_next()\fR.
.SH SEE ALSO
.BR proc (5),
.BR sched (7),
.BR user_namespaces (7).