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03b148d517
procps/ps/common.h
Jim Warner 99a657b365 ps: miscellaneous accumulated changes to comments only 
With the conversion to the new <pids> interface, a few
comments (only) are being adjusted, as detailed below.

. Escapes '\' crept into some comments containing '|'.

. For consistency, add '.' dot qualifier to a comment.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2015-10-09 21:33:51 +11:00

477 lines
14 KiB
C
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/*
* Copyright 1998-2002 by Albert Cahalan; all rights resered.
* This file may be used subject to the terms and conditions of the
* GNU Library General Public License Version 2, or any later version
* at your option, as published by the Free Software Foundation.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*/
#ifndef PROCPS_PS_H
#define PROCPS_PS_H
#include "../include/nls.h"
#include "../proc/escape.h"
// --- <pids> interface begin ||||||||||||||||||||||||||||||||||||||||||||
// -----------------------------------------------------------------------
#include <proc/pids.h>
// hack to minimize code impact
#undef proc_t
#define proc_t struct pids_stack
/* this is for allocation of the Pids_items and represents a compromise.
we can't predict how many fields will actually be requested yet there
are numerous duplicate format_array entries. here are the statistics:
252 entries in the format_array
82 of those entries are unique
60 equals a former proc_t size
in reality, only a small portion of the stack depth will be occupied,
and the excess represents storage cost only, not a run-time cpu cost! */
#define PIDSITEMS 70
/* a 'results stack value' extractor macro
where: E=rel enum, T=data type, S=stack */
#define rSv(E,T,S) PROCPS_PIDS_VAL(rel_ ## E, T, S)
#define namREL(e) rel_ ## e
#define makEXT(e) extern int namREL(e);
#define makREL(e) int namREL(e) = -1;
#define chkREL(e) if (namREL(e) < 0) { \
Pids_items[Pids_index] = PROCPS_PIDS_ ## e; \
namREL(e) = (Pids_index < PIDSITEMS) ? Pids_index++ : rel_noop; }
#define setREL1(e) { \
if (!outbuf) { \
chkREL(e) \
return 0; \
} }
#define setREL2(e1,e2) { \
if (!outbuf) { \
chkREL(e1) chkREL(e2) \
return 0; \
} }
#define setREL3(e1,e2,e3) { \
if (!outbuf) { \
chkREL(e1) chkREL(e2) chkREL(e3) \
return 0; \
} }
extern struct procps_pidsinfo *Pids_info;
extern enum pids_item *Pids_items;
extern int Pids_index;
// most of these need not be extern, they're unique to output.c
// (but for future flexibility the easiest path has been taken)
makEXT(ADDR_END_CODE)
makEXT(ADDR_KSTK_EIP)
makEXT(ADDR_KSTK_ESP)
makEXT(ADDR_START_CODE)
makEXT(ADDR_START_STACK)
makEXT(ALARM)
makEXT(CGROUP)
makEXT(CMD)
makEXT(CMDLINE)
makEXT(ENVIRON)
makEXT(FLAGS)
makEXT(FLT_MAJ)
makEXT(FLT_MAJ_C)
makEXT(FLT_MIN)
makEXT(FLT_MIN_C)
makEXT(ID_EGID)
makEXT(ID_EGROUP)
makEXT(ID_EUID)
makEXT(ID_EUSER)
makEXT(ID_FGID)
makEXT(ID_FGROUP)
makEXT(ID_FUID)
makEXT(ID_FUSER)
makEXT(ID_PGRP)
makEXT(ID_PID)
makEXT(ID_PPID)
makEXT(ID_RGID)
makEXT(ID_RGROUP)
makEXT(ID_RUID)
makEXT(ID_RUSER)
makEXT(ID_SESSION)
makEXT(ID_SGID)
makEXT(ID_SGROUP)
makEXT(ID_SUID)
makEXT(ID_SUSER)
makEXT(ID_TGID)
makEXT(ID_TPGID)
makEXT(LXCNAME)
makEXT(NICE)
makEXT(NLWP)
makEXT(NS_IPC)
makEXT(NS_MNT)
makEXT(NS_NET)
makEXT(NS_PID)
makEXT(NS_USER)
makEXT(NS_UTS)
makEXT(PRIORITY)
makEXT(PROCESSOR)
makEXT(RSS)
makEXT(RSS_RLIM)
makEXT(RTPRIO)
makEXT(SCHED_CLASS)
makEXT(SD_MACH)
makEXT(SD_OUID)
makEXT(SD_SEAT)
makEXT(SD_SESS)
makEXT(SD_SLICE)
makEXT(SD_UNIT)
makEXT(SD_UUNIT)
makEXT(SIGBLOCKED)
makEXT(SIGCATCH)
makEXT(SIGIGNORE)
makEXT(SIGNALS)
makEXT(SIGPENDING)
makEXT(STATE)
makEXT(SUPGIDS)
makEXT(SUPGROUPS)
makEXT(TICS_ALL)
makEXT(TICS_ALL_C)
makEXT(TIME_ALL)
makEXT(TIME_ELAPSED)
makEXT(TIME_START)
makEXT(TTY)
makEXT(TTY_NAME)
makEXT(TTY_NUMBER)
makEXT(VM_DATA)
makEXT(VM_LOCK)
makEXT(VM_RSS)
makEXT(VM_SIZE)
makEXT(VM_STACK)
makEXT(VSIZE_PGS)
makEXT(WCHAN_ADDR)
makEXT(WCHAN_NAME)
makEXT(extra)
makEXT(noop)
// -----------------------------------------------------------------------
// --- <pids> interface end ||||||||||||||||||||||||||||||||||||||||||||||
#if 0
#define trace(...) printf(## __VA_ARGS__)
#else
#define trace(...)
#endif
/***************** GENERAL DEFINE ********************/
/* selection list */
#define SEL_RUID 1
#define SEL_EUID 2
#define SEL_SUID 3
#define SEL_FUID 4
#define SEL_RGID 5
#define SEL_EGID 6
#define SEL_SGID 7
#define SEL_FGID 8
#define SEL_PGRP 9
#define SEL_PID 10
#define SEL_TTY 11
#define SEL_SESS 12
#define SEL_COMM 13
#define SEL_PPID 14
#define SEL_PID_QUICK 15
/* Since an enum could be smashed by a #define, it would be bad. */
#define U98 0 /* Unix98 standard */ /* This must be 0 */
#define XXX 1 /* Common extension */
#define DEC 2 /* Digital Unix */
#define AIX 3 /* AIX */
#define SCO 4 /* SCO */
#define LNX 5 /* Linux original :-) */
#define BSD 6 /* FreeBSD and OpenBSD */
#define SUN 7 /* SunOS 5 (Solaris) */
#define HPU 8 /* HP-UX */
#define SGI 9 /* Irix */
#define SOE 10 /* IBM's S/390 OpenEdition */
#define TST 11 /* test code */
/*
* Try not to overflow the output buffer:
* 32 pages for env+cmd
* 64 kB pages on IA-64
* 4 chars for "\377", or 1 when mangling to '?' (ESC_STRETCH)
* plus some slack for other stuff
* That is about 8.5 MB on IA-64, or 0.6 MB on i386
*
* Sadly, current kernels only supply one page of env/command data.
* The buffer is now protected with a guard page, and via other means
* to avoid hitting the guard page.
*/
/* output buffer size */
#define OUTBUF_SIZE (2 * 64*1024 * ESC_STRETCH)
/******************* PS DEFINE *******************/
// Column flags
// Justification control for flags field comes first.
#define CF_JUST_MASK 0x0f
// CF_AIXHACK 0
#define CF_USER 1 // left if text, right if numeric
#define CF_LEFT 2
#define CF_RIGHT 3
#define CF_UNLIMITED 4
#define CF_WCHAN 5 // left if text, right if numeric
#define CF_SIGNAL 6 // right in 9, or 16 if screen_cols>107
// Then the other flags
#define CF_PIDMAX 0x00000010 // react to pid_max
// Only one allowed; use separate bits to catch errors.
#define CF_PRINT_THREAD_ONLY 0x10000000
#define CF_PRINT_PROCESS_ONLY 0x20000000
#define CF_PRINT_EVERY_TIME 0x40000000
#define CF_PRINT_AS_NEEDED 0x80000000 // means we have no clue, so assume EVERY TIME
#define CF_PRINT_MASK 0xf0000000
/* thread_flags */
#define TF_B_H 0x0001
#define TF_B_m 0x0002
#define TF_U_m 0x0004
#define TF_U_T 0x0008
#define TF_U_L 0x0010
#define TF_show_proc 0x0100 // show the summary line
#define TF_show_task 0x0200 // show the per-thread lines
#define TF_show_both 0x0400 // distinct proc/task format lists
#define TF_loose_tasks 0x0800 // let sorting break up task groups (BSDish)
#define TF_no_sort 0x1000 // don't know if thread-grouping should survive a sort
#define TF_no_forest 0x2000 // don't see how to do threads w/ forest option
#define TF_must_use 0x4000 // options only make sense if LWP/SPID column added
/* personality control flags */
#define PER_BROKEN_o 0x0001
#define PER_BSD_h 0x0002
#define PER_BSD_m 0x0004
#define PER_IRIX_l 0x0008
#define PER_FORCE_BSD 0x0010
#define PER_GOOD_o 0x0020
#define PER_OLD_m 0x0040
#define PER_NO_DEFAULT_g 0x0080
#define PER_ZAP_ADDR 0x0100
#define PER_SANE_USER 0x0200
#define PER_HPUX_x 0x0400
#define PER_SVR4_x 0x0800
#define PER_BSD_COLS 0x1000
#define PER_UNIX_COLS 0x2000
/* Simple selections by bit mask */
#define SS_B_x 0x01
#define SS_B_g 0x02
#define SS_U_d 0x04
#define SS_U_a 0x08
#define SS_B_a 0x10
/* predefined format flags such as: -l -f l u s -j */
#define FF_Uf 0x0001 /* -f */
#define FF_Uj 0x0002 /* -j */
#define FF_Ul 0x0004 /* -l */
#define FF_Bj 0x0008 /* j */
#define FF_Bl 0x0010 /* l */
#define FF_Bs 0x0020 /* s */
#define FF_Bu 0x0040 /* u */
#define FF_Bv 0x0080 /* v */
#define FF_LX 0x0100 /* X */
#define FF_Lm 0x0200 /* m */ /* overloaded: threads, sort, format */
#define FF_Fc 0x0400 /* --context */ /* Flask security context format */
/* predefined format modifier flags such as: -l -f l u s -j */
#define FM_c 0x0001 /* -c */
#define FM_j 0x0002 /* -j */ /* only set when !sysv_j_format */
#define FM_y 0x0004 /* -y */
//#define FM_L 0x0008 /* -L */
#define FM_P 0x0010 /* -P */
#define FM_M 0x0020 /* -M */
//#define FM_T 0x0040 /* -T */
#define FM_F 0x0080 /* -F */ /* -F also sets the regular -f flags */
/* sorting & formatting */
/* U,B,G is Unix,BSD,Gnu and then there is the option itself */
#define SF_U_O 1
#define SF_U_o 2
#define SF_B_O 3
#define SF_B_o 4
#define SF_B_m 5 /* overloaded: threads, sort, format */
#define SF_G_sort 6
#define SF_G_format 7
/* headers */
#define HEAD_SINGLE 0 /* default, must be 0 */
#define HEAD_NONE 1
#define HEAD_MULTI 2
/********************** GENERAL TYPEDEF *******************/
/* Other fields that might be useful:
*
* char *name; user-defined column name (format specification)
* int reverse; sorting in reverse (sort specification)
*
* name in place of u
* reverse in place of n
*/
typedef union sel_union {
pid_t pid;
pid_t ppid;
uid_t uid;
gid_t gid;
dev_t tty;
char cmd[16]; /* this is _not_ \0 terminated */
} sel_union;
typedef struct selection_node {
struct selection_node *next;
sel_union *u; /* used if selection type has a list of values */
int n; /* used if selection type has a list of values */
int typecode;
} selection_node;
typedef struct sort_node {
struct sort_node *next;
enum pids_item sr;
int (*xe)(char *, proc_t *); // special format_node 'pr' guy
enum pids_sort_order reverse;
int typecode;
} sort_node;
typedef struct format_node {
struct format_node *next;
char *name; /* user can override default name */
int (*pr)(char *restrict const outbuf, const proc_t *restrict const pp); // print function
int width;
int vendor; /* Vendor that invented this */
int flags;
int typecode;
} format_node;
typedef struct format_struct {
const char *spec; /* format specifier */
const char *head; /* default header in the POSIX locale */
int (* const pr)(char *restrict const outbuf, const proc_t *restrict const pp); // print function
enum pids_item sr;
const int width;
const int vendor; /* Where does this come from? */
const int flags;
} format_struct;
/* though ps-specific, needed by general file */
typedef struct macro_struct {
const char *spec; /* format specifier */
const char *head; /* default header in the POSIX locale */
} macro_struct;
/**************** PS TYPEDEF ***********************/
typedef struct aix_struct {
const int desc; /* 1-character format code */
const char *spec; /* format specifier */
const char *head; /* default header in the POSIX locale */
} aix_struct;
typedef struct shortsort_struct {
const int desc; /* 1-character format code */
const char *spec; /* format specifier */
} shortsort_struct;
/* Save these options for later: -o o -O O --format --sort */
typedef struct sf_node {
struct sf_node *next; /* next arg */
format_node *f_cooked; /* convert each arg alone, then merge */
sort_node *s_cooked; /* convert each arg alone, then merge */
char *sf;
int sf_code;
} sf_node;
/********************* UNDECIDED GLOBALS **************/
/* output.c */
extern void show_one_proc(const proc_t *restrict const p, const format_node *restrict fmt);
extern void print_format_specifiers(void);
extern const aix_struct *search_aix_array(const int findme);
extern const shortsort_struct *search_shortsort_array(const int findme);
extern const format_struct *search_format_array(const char *findme);
extern const macro_struct *search_macro_array(const char *findme);
extern void init_output(void);
extern int pr_nop(char *restrict const outbuf, const proc_t *restrict const pp);
/* global.c */
extern void reset_global(void);
/* global.c */
extern int all_processes;
extern const char *bsd_j_format;
extern const char *bsd_l_format;
extern const char *bsd_s_format;
extern const char *bsd_u_format;
extern const char *bsd_v_format;
extern int bsd_c_option;
extern int bsd_e_option;
extern uid_t cached_euid;
extern int cached_tty;
extern char forest_prefix[4 * 32*1024 + 100];
extern int forest_type;
extern unsigned format_flags; /* -l -f l u s -j... */
extern format_node *format_list; /* digested formatting options */
extern unsigned format_modifiers; /* -c -j -y -P -L... */
extern int header_gap;
extern int header_type; /* none, single, multi... */
extern int include_dead_children;
extern int lines_to_next_header;
extern int max_line_width;
extern int negate_selection;
extern int page_size; // "int" for math reasons?
extern unsigned personality;
extern int prefer_bsd_defaults;
extern int running_only;
extern int screen_cols;
extern int screen_rows;
extern time_t seconds_since_boot;
extern selection_node *selection_list;
extern unsigned simple_select;
extern sort_node *sort_list;
extern const char *sysv_f_format;
extern const char *sysv_fl_format;
extern const char *sysv_j_format;
extern const char *sysv_l_format;
extern unsigned thread_flags;
extern int unix_f_option;
extern int user_is_number;
extern int wchan_is_number;
extern const char *the_word_help;
/************************* PS GLOBALS *********************/
/* display.c */
extern char *myname;
/* sortformat.c */
extern int defer_sf_option(const char *arg, int source);
extern const char *process_sf_options(int localbroken);
extern void reset_sortformat(void);
/* select.c */
extern int want_this_proc(proc_t *buf);
extern const char *select_bits_setup(void);
/* help.c */
extern void __attribute__ ((__noreturn__)) do_help(const char *opt, int rc);
/* global.c */
extern void self_info(void);
extern void catastrophic_failure(const char *filename, unsigned int linenum,
const char *message);
/* parser.c */
extern int arg_parse(int argc, char *argv[]);
#endif
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