freebsd-dev/usr.bin/getconf/sysconf.gperf
Enji Cooper 7b97300547 Add Linux compatibility support for SC_NPROCESSORS_{CONF,ONLN} as _SC_NPROCESSORS_{CONF,ONLN}
The goal of this change is to make it easier to use getconf to query
the number of available processors.

Sadly it's unclear per POSIX, which form (with a preceding _ or
lacking it) is correct. I will bring this up on the Austin Group list so
this point is clarified for implementors that might rely on this getconf
variable in future POSIX spec versions.

This is something I noticed when trying to import GoogleTest to FreeBSD
as one of the CI scripts uses this variable on Linux.

MFC after:	2 weeks
Approved by:	emaste (mentor)
Differential Revision:	https://reviews.freebsd.org/D18640
2019-01-11 22:28:18 +00:00

163 lines
4.7 KiB
Plaintext

%{
/*
* Copyright is disclaimed as to the contents of this file.
*
* $FreeBSD$
*/
#include <sys/types.h>
#include <string.h>
#include <unistd.h>
#include "getconf.h"
/*
* Override gperf's built-in external scope.
*/
static const struct map *in_word_set(const char *str);
%}
struct map { const char *name; int key; int valid; };
%%
AIO_LISTIO_MAX, _SC_AIO_LISTIO_MAX
AIO_MAX, _SC_AIO_MAX
AIO_PRIO_DELTA_MAX, _SC_AIO_PRIO_DELTA_MAX
ARG_MAX, _SC_ARG_MAX
ATEXIT_MAX, _SC_ATEXIT_MAX
BC_BASE_MAX, _SC_BC_BASE_MAX
BC_DIM_MAX, _SC_BC_DIM_MAX
BC_SCALE_MAX, _SC_BC_SCALE_MAX
BC_STRING_MAX, _SC_BC_STRING_MAX
CHILD_MAX, _SC_CHILD_MAX
CLK_TCK, _SC_CLK_TCK
COLL_WEIGHTS_MAX, _SC_COLL_WEIGHTS_MAX
DELAYTIMER_MAX, _SC_DELAYTIMER_MAX
EXPR_NEST_MAX, _SC_EXPR_NEST_MAX
GETGR_R_SIZE_MAX, _SC_GETGR_R_SIZE_MAX
GETPW_R_SIZE_MAX, _SC_GETPW_R_SIZE_MAX
HOST_NAME_MAX, _SC_HOST_NAME_MAX
IOV_MAX, _SC_IOV_MAX
LINE_MAX, _SC_LINE_MAX
LOGIN_NAME_MAX, _SC_LOGIN_NAME_MAX
MQ_OPEN_MAX, _SC_MQ_OPEN_MAX
MQ_PRIO_MAX, _SC_MQ_PRIO_MAX
NGROUPS_MAX, _SC_NGROUPS_MAX
NPROCESSORS_CONF, _SC_NPROCESSORS_CONF
NPROCESSORS_ONLN, _SC_NPROCESSORS_ONLN
OPEN_MAX, _SC_OPEN_MAX
PAGESIZE, _SC_PAGESIZE
PAGE_SIZE, _SC_PAGESIZE
PASS_MAX, _SC_PASS_MAX
PTHREAD_DESTRUCTOR_ITERATIONS, _SC_THREAD_DESTRUCTOR_ITERATIONS
PTHREAD_KEYS_MAX, _SC_THREAD_KEYS_MAX
PTHREAD_STACK_MIN, _SC_THREAD_STACK_MIN
PTHREAD_THREADS_MAX, _SC_THREAD_THREADS_MAX
RE_DUP_MAX, _SC_RE_DUP_MAX
RTSIG_MAX, _SC_RTSIG_MAX
SEM_NSEMS_MAX, _SC_SEM_NSEMS_MAX
SEM_VALUE_MAX, _SC_SEM_VALUE_MAX
SIGQUEUE_MAX, _SC_SIGQUEUE_MAX
STREAM_MAX, _SC_STREAM_MAX
SYMLOOP_MAX, _SC_SYMLOOP_MAX
TIMER_MAX, _SC_TIMER_MAX
TTY_NAME_MAX, _SC_TTY_NAME_MAX
TZNAME_MAX, _SC_TZNAME_MAX
_NPROCESSORS_CONF, _SC_NPROCESSORS_CONF
_NPROCESSORS_ONLN, _SC_NPROCESSORS_ONLN
_POSIX2_CHAR_TERM, _SC_2_CHAR_TERM
_POSIX2_C_BIND, _SC_2_C_BIND
_POSIX2_C_DEV, _SC_2_C_DEV
_POSIX2_C_VERSION, _SC_2_C_VERSION
_POSIX2_FORT_DEV, _SC_2_FORT_DEV
_POSIX2_FORT_RUN, _SC_2_FORT_RUN
_POSIX2_LOCALEDEF, _SC_2_LOCALEDEF
_POSIX2_SW_DEV, _SC_2_SW_DEV
_POSIX2_UPE, _SC_2_UPE
_POSIX2_VERSION, _SC_2_VERSION
_POSIX_ASYNCHRONOUS_IO, _SC_ASYNCHRONOUS_IO
_POSIX_BARRIERS, _SC_BARRIERS
_POSIX_CLOCK_SELECTION, _SC_CLOCK_SELECTION
_POSIX_CPUTIME, _SC_CPUTIME
_POSIX_FILE_LOCKING, _SC_FILE_LOCKING
_POSIX_FSYNC, _SC_FSYNC
_POSIX_IPV6, _SC_IPV6
_POSIX_JOB_CONTROL, _SC_JOB_CONTROL
_POSIX_MAPPED_FILES, _SC_MAPPED_FILES
_POSIX_MEMLOCK, _SC_MEMLOCK
_POSIX_MEMLOCK_RANGE, _SC_MEMLOCK_RANGE
_POSIX_MEMORY_PROTECTION, _SC_MEMORY_PROTECTION
_POSIX_MESSAGE_PASSING, _SC_MESSAGE_PASSING
_POSIX_MONOTONIC_CLOCK, _SC_MONOTONIC_CLOCK
_POSIX_PRIORITIZED_IO, _SC_PRIORITIZED_IO
_POSIX_PRIORITY_SCHEDULING, _SC_PRIORITY_SCHEDULING
_POSIX_READER_WRITER_LOCKS, _SC_READER_WRITER_LOCKS
_POSIX_REALTIME_SIGNALS, _SC_REALTIME_SIGNALS
_POSIX_REGEXP, _SC_REGEXP
_POSIX_SAVED_IDS, _SC_SAVED_IDS
_POSIX_SEMAPHORES, _SC_SEMAPHORES
_POSIX_SHARED_MEMORY_OBJECTS, _SC_SHARED_MEMORY_OBJECTS
_POSIX_SHELL, _SC_SHELL
_POSIX_SPAWN, _SC_SPAWN
_POSIX_SPIN_LOCKS, _SC_SPIN_LOCKS
_POSIX_SPORADIC_SERVER, _SC_SPORADIC_SERVER
_POSIX_SYNCHRONIZED_IO, _SC_SYNCHRONIZED_IO
_POSIX_THREADS, _SC_THREADS
_POSIX_THREAD_ATTR_STACKADDR, _SC_THREAD_ATTR_STACKADDR
_POSIX_THREAD_ATTR_STACKSIZE, _SC_THREAD_ATTR_STACKSIZE
_POSIX_THREAD_CPUTIME, _SC_THREAD_CPUTIME
_POSIX_THREAD_PRIORITY_SCHEDULING, _SC_THREAD_PRIORITY_SCHEDULING
_POSIX_THREAD_PRIO_INHERIT, _SC_THREAD_PRIO_INHERIT
_POSIX_THREAD_PRIO_PROTECT, _SC_THREAD_PRIO_PROTECT
_POSIX_THREAD_PROCESS_SHARED, _SC_THREAD_PROCESS_SHARED
_POSIX_THREAD_SAFE_FUNCTIONS, _SC_THREAD_SAFE_FUNCTIONS
_POSIX_THREAD_SPORADIC_SERVER, _SC_THREAD_SPORADIC_SERVER
_POSIX_TIMEOUTS, _SC_TIMEOUTS
_POSIX_TRACE, _SC_TRACE
_POSIX_TRACE_EVENT_FILTER, _SC_TRACE_EVENT_FILTER
_POSIX_TRACE_INHERIT, _SC_TRACE_INHERIT
_POSIX_TRACE_LOG, _SC_TRACE_LOG
_POSIX_TIMERS, _SC_TIMERS
_POSIX_TYPED_MEMORY_OBJECTS, _SC_TYPED_MEMORY_OBJECTS
_POSIX_VERSION, _SC_VERSION
_POSIX_V6_ILP32_OFF32, _SC_V6_ILP32_OFF32
_POSIX_V6_ILP32_OFFBIG, _SC_V6_ILP32_OFFBIG
_POSIX_V6_LP64_OFF64, _SC_V6_LP64_OFF64
_POSIX_V6_LPBIG_OFFBIG, _SC_V6_LPBIG_OFFBIG
_XOPEN_CRYPT, _SC_XOPEN_CRYPT
_XOPEN_ENH_I18N, _SC_XOPEN_ENH_I18N
_XOPEN_LEGACY, _SC_XOPEN_LEGACY
_XOPEN_REALTIME, _SC_XOPEN_REALTIME
_XOPEN_REALTIME_THREADS, _SC_XOPEN_REALTIME_THREADS
_XOPEN_SHM, _SC_XOPEN_SHM
_XOPEN_UNIX, _SC_XOPEN_UNIX
_XOPEN_VERSION, _SC_XOPEN_VERSION
_XOPEN_XCU_VERSION, _SC_XCU_VERSION
%%
int
find_sysconf(const char *name, int *key)
{
const struct map *rv;
rv = in_word_set(name);
if (rv != NULL) {
if (rv->valid) {
*key = rv->key;
return 1;
}
return -1;
}
return 0;
}
void
foreach_sysconf(void (*func)(const char *, int))
{
const struct map *mp;
for (mp = wordlist; mp->name != NULL; mp++) {
if (mp->valid)
func(mp->name, mp->key);
}
}