procps/proc/pids.h
Jim Warner b0908eec4b library: replace the troublesome '__BEGIN_DECLS' macro
When 'newlib' was introduced, in the commit referenced
below, the use of that glibc '__BEGIN_DECLS' macro was
standardized. However, as issue #88 revealed, this may
result in a fatal build error with other environments.

So, this patch just trades that macro for the standard
'#ifdef __cplusplus' conventions (thus avoiding use of
all those '#include <features.h>' directives as well).

Reference(s):
. newlib introduced
commit a410e236ab
. procps-ng-3.3.13 issue
https://gitlab.com/procps-ng/procps/issues/88
. some additional discussion
https://www.freelists.org/post/procps/PATCH-Replace-glibcspecific-macros-in-procnumah,1
. musl wiki (see: sys/cdefs.h error messages)
https://wiki.musl-libc.org/faq.html

Signed-off-by: Jim Warner <james.warner@comcast.net>
2018-05-06 07:19:38 +10:00

240 lines
7.4 KiB
C

/*
* libprocps - Library to read proc filesystem
*
* Copyright (C) 1998-2005 Albert Cahalan
* Copyright (C) 2015 Craig Small <csmall@enc.com.au>
* Copyright (C) 2015 Jim Warner <james.warner@comcast.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef PROCPS_PIDS_H
#define PROCPS_PIDS_H
#ifdef __cplusplus
extern "C" {
#endif
enum pids_item {
PIDS_noop, // ( never altered )
PIDS_extra, // ( reset to zero )
PIDS_ADDR_END_CODE, // ul_int
PIDS_ADDR_KSTK_EIP, // ul_int
PIDS_ADDR_KSTK_ESP, // ul_int
PIDS_ADDR_START_CODE, // ul_int
PIDS_ADDR_START_STACK, // ul_int
PIDS_CGNAME, // str
PIDS_CGROUP, // str
PIDS_CGROUP_V, // strv
PIDS_CMD, // str
PIDS_CMDLINE, // str
PIDS_CMDLINE_V, // strv
PIDS_ENVIRON, // str
PIDS_ENVIRON_V, // strv
PIDS_EXIT_SIGNAL, // s_int
PIDS_FLAGS, // ul_int
PIDS_FLT_MAJ, // ul_int
PIDS_FLT_MAJ_C, // ul_int
PIDS_FLT_MAJ_DELTA, // s_int
PIDS_FLT_MIN, // ul_int
PIDS_FLT_MIN_C, // ul_int
PIDS_FLT_MIN_DELTA, // s_int
PIDS_ID_EGID, // u_int
PIDS_ID_EGROUP, // str
PIDS_ID_EUID, // u_int
PIDS_ID_EUSER, // str
PIDS_ID_FGID, // u_int
PIDS_ID_FGROUP, // str
PIDS_ID_FUID, // u_int
PIDS_ID_FUSER, // str
PIDS_ID_LOGIN, // s_int
PIDS_ID_PGRP, // s_int
PIDS_ID_PID, // s_int
PIDS_ID_PPID, // s_int
PIDS_ID_RGID, // u_int
PIDS_ID_RGROUP, // str
PIDS_ID_RUID, // u_int
PIDS_ID_RUSER, // str
PIDS_ID_SESSION, // s_int
PIDS_ID_SGID, // u_int
PIDS_ID_SGROUP, // str
PIDS_ID_SUID, // u_int
PIDS_ID_SUSER, // str
PIDS_ID_TGID, // s_int
PIDS_ID_TPGID, // s_int
PIDS_LXCNAME, // str
PIDS_MEM_CODE, // ul_int
PIDS_MEM_CODE_PGS, // ul_int
PIDS_MEM_DATA, // ul_int
PIDS_MEM_DATA_PGS, // ul_int
PIDS_MEM_RES, // ul_int
PIDS_MEM_RES_PGS, // ul_int
PIDS_MEM_SHR, // ul_int
PIDS_MEM_SHR_PGS, // ul_int
PIDS_MEM_VIRT, // ul_int
PIDS_MEM_VIRT_PGS, // ul_int
PIDS_NICE, // s_int
PIDS_NLWP, // s_int
PIDS_NS_IPC, // ul_int
PIDS_NS_MNT, // ul_int
PIDS_NS_NET, // ul_int
PIDS_NS_PID, // ul_int
PIDS_NS_USER, // ul_int
PIDS_NS_UTS, // ul_int
PIDS_OOM_ADJ, // s_int
PIDS_OOM_SCORE, // s_int
PIDS_PRIORITY, // s_int
PIDS_PROCESSOR, // u_int
PIDS_PROCESSOR_NODE, // s_int
PIDS_RSS, // ul_int
PIDS_RSS_RLIM, // ul_int
PIDS_RTPRIO, // s_int
PIDS_SCHED_CLASS, // s_int
PIDS_SD_MACH, // str
PIDS_SD_OUID, // str
PIDS_SD_SEAT, // str
PIDS_SD_SESS, // str
PIDS_SD_SLICE, // str
PIDS_SD_UNIT, // str
PIDS_SD_UUNIT, // str
PIDS_SIGBLOCKED, // str
PIDS_SIGCATCH, // str
PIDS_SIGIGNORE, // str
PIDS_SIGNALS, // str
PIDS_SIGPENDING, // str
PIDS_STATE, // s_ch
PIDS_SUPGIDS, // str
PIDS_SUPGROUPS, // str
PIDS_TICS_ALL, // ull_int
PIDS_TICS_ALL_C, // ull_int
PIDS_TICS_ALL_DELTA, // s_int
PIDS_TICS_BLKIO, // ull_int
PIDS_TICS_GUEST, // ull_int
PIDS_TICS_GUEST_C, // ull_int
PIDS_TICS_SYSTEM, // ull_int
PIDS_TICS_SYSTEM_C, // ull_int
PIDS_TICS_USER, // ull_int
PIDS_TICS_USER_C, // ull_int
PIDS_TIME_ALL, // ull_int
PIDS_TIME_ELAPSED, // ull_int
PIDS_TIME_START, // ull_int
PIDS_TTY, // s_int
PIDS_TTY_NAME, // str
PIDS_TTY_NUMBER, // str
PIDS_VM_DATA, // ul_int
PIDS_VM_EXE, // ul_int
PIDS_VM_LIB, // ul_int
PIDS_VM_RSS, // ul_int
PIDS_VM_RSS_ANON, // ul_int
PIDS_VM_RSS_FILE, // ul_int
PIDS_VM_RSS_LOCKED, // ul_int
PIDS_VM_RSS_SHARED, // ul_int
PIDS_VM_SIZE, // ul_int
PIDS_VM_STACK, // ul_int
PIDS_VM_SWAP, // ul_int
PIDS_VM_USED, // ul_int
PIDS_VSIZE_PGS, // ul_int
PIDS_WCHAN_NAME // str
};
enum pids_fetch_type {
PIDS_FETCH_TASKS_ONLY,
PIDS_FETCH_THREADS_TOO
};
enum pids_select_type {
PIDS_SELECT_PID = 0x1000,
PIDS_SELECT_UID = 0x4000
};
enum pids_sort_order {
PIDS_SORT_ASCEND = +1,
PIDS_SORT_DESCEND = -1
};
struct pids_result {
enum pids_item item;
union {
signed char s_ch;
signed int s_int;
unsigned int u_int;
unsigned long ul_int;
unsigned long long ull_int;
char *str;
char **strv;
} result;
};
struct pids_stack {
struct pids_result *head;
};
struct pids_counts {
int total;
int running, sleeping, stopped, zombied, other;
};
struct pids_fetch {
struct pids_counts *counts;
struct pids_stack **stacks;
};
#define PIDS_VAL( relative_enum, type, stack, info ) \
stack -> head [ relative_enum ] . result . type
struct pids_info;
int procps_pids_new (struct pids_info **info, enum pids_item *items, int numitems);
int procps_pids_ref (struct pids_info *info);
int procps_pids_unref (struct pids_info **info);
struct pids_stack *fatal_proc_unmounted (
struct pids_info *info,
int return_self);
struct pids_stack *procps_pids_get (
struct pids_info *info,
enum pids_fetch_type which);
struct pids_fetch *procps_pids_reap (
struct pids_info *info,
enum pids_fetch_type which);
int procps_pids_reset (
struct pids_info *info,
enum pids_item *newitems,
int newnumitems);
struct pids_fetch *procps_pids_select (
struct pids_info *info,
unsigned *these,
int numthese,
enum pids_select_type which);
struct pids_stack **procps_pids_sort (
struct pids_info *info,
struct pids_stack *stacks[],
int numstacked,
enum pids_item sortitem,
enum pids_sort_order order);
#ifdef __cplusplus
}
#endif
#endif