mirror of https://github.com/mkerrisk/man-pages
792 lines
18 KiB
Groff
792 lines
18 KiB
Groff
.\" Copyright (c) 2003 Andries Brouwer (aeb@cwi.nl)
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.\"
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.\" %%%LICENSE_START(GPLv2+_DOC_FULL)
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\"
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.\" The GNU General Public License's references to "object code"
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.\" and "executables" are to be interpreted as the output of any
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.\" document formatting or typesetting system, including
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.\" intermediate and printed output.
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.\"
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.\" This manual is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" GNU General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public
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.\" License along with this manual; if not, see
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.\" <http://www.gnu.org/licenses/>.
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.\" %%%LICENSE_END
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.\"
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.TH POSIXOPTIONS 7 2007-12-21 "" "Linux Programmer's Manual"
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.SH NAME
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posixoptions \- optional parts of the POSIX standard
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.SH DESCRIPTION
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The POSIX standard (the information below is from POSIX.1-2001)
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describes a set of behaviors and interfaces for a compliant system.
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However, many interfaces are optional and there are feature test macros
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to test the availability of interfaces at compile time, and functions
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.BR sysconf (3),
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.BR fpathconf (3),
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.BR pathconf (3),
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.BR confstr (3)
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to do this at run time.
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From shell scripts one can use
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.BR getconf (1).
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For more detail, see
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.BR sysconf (3).
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.PP
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We give the name of the POSIX abbreviation, the option, the name of the
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.BR sysconf (3)
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parameter used to inquire about the option, and possibly
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a very short description.
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Much more precise detail can be found in the POSIX standard itself,
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versions of which can nowadays be accessed freely on the web.
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.SS ADV - _POSIX_ADVISORY_INFO - _SC_ADVISORY_INFO
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The following advisory functions are present:
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.PP
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.nf
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.in +4n
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.IR posix_fadvise (),
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.IR posix_fallocate (),
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.IR posix_memalign (),
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.IR posix_madvise ().
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.in
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.fi
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.SS AIO - _POSIX_ASYNCHRONOUS_IO - _SC_ASYNCHRONOUS_IO
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The header
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.I <aio.h>
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is present.
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The following functions are present:
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.PP
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.nf
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.in +4n
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.IR aio_cancel (),
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.IR aio_error (),
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.IR aio_fsync (),
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.IR aio_read (),
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.IR aio_return (),
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.IR aio_suspend (),
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.IR aio_write (),
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.IR lio_listio ().
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.in
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.fi
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.SS BAR - _POSIX_BARRIERS - _SC_BARRIERS
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This option implies the
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.B _POSIX_THREADS
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and
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.B _POSIX_THREAD_SAFE_FUNCTIONS
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options.
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The following functions are present:
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.PP
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.nf
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.in +4n
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.IR pthread_barrier_destroy (),
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.IR pthread_barrier_init (),
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.IR pthread_barrier_wait (),
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.IR pthread_barrierattr_destroy (),
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.IR pthread_barrierattr_init ().
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.in
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.fi
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.\" .SS BE
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.\" Batch environment.
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.\" .SS CD
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.\" C development.
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.SS --- - POSIX_CHOWN_RESTRICTED
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If this option is in effect (as it always is under POSIX.1-2001),
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then only root may change the owner of a file, and nonroot can
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set the group of a file only to one of the groups it belongs to.
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This affects the functions
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.IR chown (),
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.IR fchown ().
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.\" What about lchown() ?
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.SS CS - _POSIX_CLOCK_SELECTION - _SC_CLOCK_SELECTION
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This option implies the
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.B _POSIX_TIMERS
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option.
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The following functions are present:
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.PP
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.nf
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.in +4n
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.IR pthread_condattr_getclock (),
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.IR pthread_condattr_setclock (),
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.IR clock_nanosleep ().
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.in
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.fi
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.PP
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If
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.B CLOCK_REALTIME
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is changed by the function
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.IR clock_settime (),
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then this affects all timers set for an absolute time.
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.SS CPT - _POSIX_CPUTIME - _SC_CPUTIME
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The clockID CLOCK_PROCESS_CPUTIME_ID is supported.
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The initial value of this clock is 0 for each process.
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This option implies the
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.B _POSIX_TIMERS
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option.
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The function
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.IR clock_getcpuclockid ()
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is present.
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.\" .SS FD
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.\" Fortran development
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.\" .SS FR
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.\" Fortran runtime
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.SS --- - _POSIX_FILE_LOCKING - _SC_FILE_LOCKING
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This option has been deleted.
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Not in final XPG6.
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.SS FSC - _POSIX_FSYNC - _SC_FSYNC
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The function
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.IR fsync ()
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is present.
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.SS IP6 - _POSIX_IPV6 - _SC_IPV6
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Internet Protocol Version 6 is supported.
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.SS --- - _POSIX_JOB_CONTROL - _SC_JOB_CONTROL
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If this option is in effect (as it always is under POSIX.1-2001),
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then the system implements POSIX-style job control,
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and the following functions are present:
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.PP
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.nf
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.in +4n
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.IR setpgid (),
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.IR tcdrain (),
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.IR tcflush (),
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.IR tcgetpgrp (),
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.IR tcsendbreak (),
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.IR tcsetattr (),
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.IR tcsetpgrp ().
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.in
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.fi
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.SS MF - _POSIX_MAPPED_FILES - _SC_MAPPED_FILES
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Shared memory is supported.
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The include file
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.I <sys/mman.h>
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is present.
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The following functions are present:
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.IR mmap (),
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.IR msync (),
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.IR munmap ().
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.SS ML - _POSIX_MEMLOCK - _SC_MEMLOCK
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Shared memory can be locked into core.
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The functions
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.IR mlockall (),
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.IR munlockall ()
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are present.
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.SS MR/MLR - _POSIX_MEMLOCK_RANGE - _SC_MEMLOCK_RANGE
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More precisely, ranges can be locked into core.
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The functions
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.IR mlock (),
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.IR munlock ()
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are present.
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.SS MPR - _POSIX_MEMORY_PROTECTION - _SC_MEMORY_PROTECTION
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The function
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.IR mprotect ()
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is present.
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.SS MSG - _POSIX_MESSAGE_PASSING - _SC_MESSAGE_PASSING
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The include file
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.I <mqueue.h>
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is present.
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The following functions are present:
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.PP
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.nf
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.in +4n
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.IR mq_close (),
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.IR mq_getattr (),
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.IR mq_notify (),
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.IR mq_open (),
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.IR mq_receive (),
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.IR mq_send (),
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.IR mq_setattr (),
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.IR mq_unlink ().
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.in
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.fi
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.SS MON - _POSIX_MONOTONIC_CLOCK - _SC_MONOTONIC_CLOCK
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.B CLOCK_MONOTONIC
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is supported.
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This option implies the
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.B _POSIX_TIMERS
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option.
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Affected functions are
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.PP
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.nf
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.in +4n
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.IR aio_suspend (),
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.IR clock_getres (),
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.IR clock_gettime (),
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.IR clock_settime (),
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.IR timer_create ().
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.in
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.fi
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.SS --- - _POSIX_MULTI_PROCESS - _SC_MULTI_PROCESS
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This option has been deleted.
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Not in final XPG6.
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.\" .SS MX
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.\" IEC 60559 Floating-Point Option.
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.SS --- - _POSIX_NO_TRUNC
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If this option is in effect (as it always is under POSIX.1-2001)
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then pathname components longer than
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.B NAME_MAX
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are not truncated,
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but give an error.
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This property may be dependent on the path prefix of the component.
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.SS PIO - _POSIX_PRIORITIZED_IO - _SC_PRIORITIZED_IO
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This option says that one can specify priorities for asynchronous I/O.
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This affects the functions
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.PP
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.nf
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.in +4n
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.IR aio_read (),
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.IR aio_write ().
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.in
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.fi
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.SS PS - _POSIX_PRIORITY_SCHEDULING - _SC_PRIORITY_SCHEDULING
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The include file
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.I <sched.h>
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is present.
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The following functions are present:
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.PP
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.nf
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.in +4n
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.IR sched_get_priority_max (),
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.IR sched_get_priority_min (),
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.IR sched_getparam (),
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.IR sched_getscheduler (),
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.IR sched_rr_get_interval (),
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.IR sched_setparam (),
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.IR sched_setscheduler (),
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.IR sched_yield ().
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.in
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.fi
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If also
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.B _POSIX_SPAWN
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is in effect, then the following functions are present:
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.PP
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.nf
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.in +4n
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.IR posix_spawnattr_getschedparam (),
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.IR posix_spawnattr_getschedpolicy (),
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.IR posix_spawnattr_setschedparam (),
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.IR posix_spawnattr_setschedpolicy ().
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.in
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.fi
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.SS RS - _POSIX_RAW_SOCKETS
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Raw sockets are supported.
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Affected functions are
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.IR getsockopt (),
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.IR setsockopt ().
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.SS --- - _POSIX_READER_WRITER_LOCKS - _SC_READER_WRITER_LOCKS
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This option implies the
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.B _POSIX_THREADS
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option.
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Conversely,
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under POSIX.1-2001 the
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.B _POSIX_THREADS
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option implies this option.
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.PP
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The following functions are present:
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.in +4n
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.nf
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.IR pthread_rwlock_destroy (),
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.IR pthread_rwlock_init (),
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.IR pthread_rwlock_rdlock (),
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.IR pthread_rwlock_tryrdlock (),
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.IR pthread_rwlock_trywrlock (),
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.IR pthread_rwlock_unlock (),
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.IR pthread_rwlock_wrlock (),
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.IR pthread_rwlockattr_destroy (),
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.IR pthread_rwlockattr_init ().
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.in
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.fi
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.SS RTS - _POSIX_REALTIME_SIGNALS - _SC_REALTIME_SIGNALS
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Realtime signals are supported.
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The following functions are present:
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.PP
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.nf
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.in +4n
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.IR sigqueue (),
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.IR sigtimedwait (),
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.IR sigwaitinfo ().
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.in
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.fi
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.SS --- - _POSIX_REGEXP - _SC_REGEXP
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If this option is in effect (as it always is under POSIX.1-2001)
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then POSIX regular expressions are supported
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and the following functions are present:
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.PP
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.nf
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.in +4n
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.IR regcomp (),
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.IR regerror (),
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.IR regexec (),
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.IR regfree ().
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.in
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.fi
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.SS --- - _POSIX_SAVED_IDS - _SC_SAVED_IDS
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If this option is in effect (as it always is under POSIX.1-2001),
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then a process has a saved set-user-ID and a saved set-group-ID.
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Affected functions are
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.PP
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.nf
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.in +4n
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.IR exec (),
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.IR kill (),
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.IR seteuid (),
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.IR setegid (),
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.IR setgid (),
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.IR setuid ().
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.in
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.fi
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.\" .SS SD
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.\" Software development
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.SS SEM - _POSIX_SEMAPHORES - _SC_SEMAPHORES
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The include file
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.I <semaphore.h>
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is present.
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The following functions are present:
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.PP
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.nf
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.in +4n
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.IR sem_close (),
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.IR sem_destroy (),
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.IR sem_getvalue (),
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.IR sem_init (),
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.IR sem_open (),
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.IR sem_post (),
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.IR sem_trywait (),
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.IR sem_unlink (),
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.IR sem_wait ().
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.in
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.fi
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.SS SHM - _POSIX_SHARED_MEMORY_OBJECTS - _SC_SHARED_MEMORY_OBJECTS
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The following functions are present:
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.PP
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.nf
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.in +4n
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.IR mmap (),
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.IR munmap (),
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.IR shm_open (),
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.IR shm_unlink ().
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.in
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.fi
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.SS --- - _POSIX_SHELL - _SC_SHELL
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If this option is in effect (as it always is under POSIX.1-2001),
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the function
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.IR system ()
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is present.
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.SS SPN - _POSIX_SPAWN - _SC_SPAWN
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This option describes support for process creation in a context where
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it is difficult or impossible to use
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.IR fork (),
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for example, because no MMU is present.
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If
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.B _POSIX_SPAWN
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is in effect, then the include file
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.I <spawn.h>
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and the following functions are present:
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.PP
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.nf
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.in +4n
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.IR posix_spawn (),
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.IR posix_spawn_file_actions_addclose (),
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.IR posix_spawn_file_actions_adddup2 (),
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.IR posix_spawn_file_actions_addopen (),
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.IR posix_spawn_file_actions_destroy (),
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.IR posix_spawn_file_actions_init (),
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.IR posix_spawnattr_destroy (),
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.IR posix_spawnattr_getsigdefault (),
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.IR posix_spawnattr_getflags (),
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.IR posix_spawnattr_getpgroup (),
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.IR posix_spawnattr_getsigmask (),
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.IR posix_spawnattr_init (),
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.IR posix_spawnattr_setsigdefault (),
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.IR posix_spawnattr_setflags (),
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.IR posix_spawnattr_setpgroup (),
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.IR posix_spawnattr_setsigmask (),
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.IR posix_spawnp ().
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.in
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.fi
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If also
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.B _POSIX_PRIORITY_SCHEDULING
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is in effect, then
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the following functions are present:
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.PP
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.nf
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.in +4n
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.IR posix_spawnattr_getschedparam (),
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.IR posix_spawnattr_getschedpolicy (),
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.IR posix_spawnattr_setschedparam (),
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.IR posix_spawnattr_setschedpolicy ().
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.in
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.fi
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.SS SPI - _POSIX_SPIN_LOCKS - _SC_SPIN_LOCKS
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This option implies the
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.B _POSIX_THREADS
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and
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.B _POSIX_THREAD_SAFE_FUNCTIONS
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options.
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The following functions are present:
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.PP
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.nf
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.in +4n
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.IR pthread_spin_destroy (),
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.IR pthread_spin_init (),
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.IR pthread_spin_lock (),
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.IR pthread_spin_trylock (),
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.IR pthread_spin_unlock ().
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.in -4n
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.fi
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.SS SS - _POSIX_SPORADIC_SERVER - _SC_SPORADIC_SERVER
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The scheduling policy
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.B SCHED_SPORADIC
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is supported.
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This option implies the
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.B _POSIX_PRIORITY_SCHEDULING
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option.
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Affected functions are
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.PP
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.nf
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.in +4n
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.IR sched_setparam (),
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.IR sched_setscheduler ().
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.in
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.fi
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.SS SIO - _POSIX_SYNCHRONIZED_IO - _SC_SYNCHRONIZED_IO
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|
Affected functions are
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.IR open (),
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.IR msync (),
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.IR fsync (),
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.IR fdatasync ().
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.SS TSA - _POSIX_THREAD_ATTR_STACKADDR - _SC_THREAD_ATTR_STACKADDR
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Affected functions are
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.PP
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.nf
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.in +4n
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.IR pthread_attr_getstack (),
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.IR pthread_attr_getstackaddr (),
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.IR pthread_attr_setstack (),
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.IR pthread_attr_setstackaddr ().
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.in
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.fi
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.SS TSS - _POSIX_THREAD_ATTR_STACKSIZE - _SC_THREAD_ATTR_STACKSIZE
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Affected functions are
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.PP
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.nf
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.in +4n
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.IR pthread_attr_getstack (),
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.IR pthread_attr_getstacksize (),
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.IR pthread_attr_setstack (),
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.IR pthread_attr_setstacksize ().
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.in
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.fi
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.SS TCT - _POSIX_THREAD_CPUTIME - _SC_THREAD_CPUTIME
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The clockID CLOCK_THREAD_CPUTIME_ID is supported.
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This option implies the
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.B _POSIX_TIMERS
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option.
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Affected functions are
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.PP
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.nf
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.in +4n
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.IR pthread_getcpuclockid (),
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.IR clock_getres (),
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.IR clock_gettime (),
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.IR clock_settime (),
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.IR timer_create ().
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.in
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.fi
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.SS TPI - _POSIX_THREAD_PRIO_INHERIT - _SC_THREAD_PRIO_INHERIT
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Affected functions are
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.PP
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.nf
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.in +4n
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.IR pthread_mutexattr_getprotocol (),
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.IR pthread_mutexattr_setprotocol ().
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.in
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.fi
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.SS TPP - _POSIX_THREAD_PRIO_PROTECT - _SC_THREAD_PRIO_PROTECT
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Affected functions are
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.PP
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.nf
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.in +4n
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.IR pthread_mutex_getprioceiling (),
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.IR pthread_mutex_setprioceiling (),
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.IR pthread_mutexattr_getprioceiling (),
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.IR pthread_mutexattr_getprotocol (),
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.IR pthread_mutexattr_setprioceiling (),
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.IR pthread_mutexattr_setprotocol ().
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.in
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.fi
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.SS TPS - _POSIX_THREAD_PRIORITY_SCHEDULING - _SC_THREAD_PRIORITY_SCHEDULING
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|
If this option is in effect, the different threads inside a process
|
|
can run with different priorities and/or different schedulers.
|
|
Affected functions are
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR pthread_attr_getinheritsched (),
|
|
.IR pthread_attr_getschedpolicy (),
|
|
.IR pthread_attr_getscope (),
|
|
.IR pthread_attr_setinheritsched (),
|
|
.IR pthread_attr_setschedpolicy (),
|
|
.IR pthread_attr_setscope (),
|
|
.IR pthread_getschedparam (),
|
|
.IR pthread_setschedparam (),
|
|
.IR pthread_setschedprio ().
|
|
.in
|
|
.fi
|
|
.SS TSH - _POSIX_THREAD_PROCESS_SHARED - _SC_THREAD_PROCESS_SHARED
|
|
Affected functions are
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR pthread_barrierattr_getpshared (),
|
|
.IR pthread_barrierattr_setpshared (),
|
|
.IR pthread_condattr_getpshared (),
|
|
.IR pthread_condattr_setpshared (),
|
|
.IR pthread_mutexattr_getpshared (),
|
|
.IR pthread_mutexattr_setpshared (),
|
|
.IR pthread_rwlockattr_getpshared (),
|
|
.IR pthread_rwlockattr_setpshared ().
|
|
.in
|
|
.fi
|
|
.SS TSF - _POSIX_THREAD_SAFE_FUNCTIONS - _SC_THREAD_SAFE_FUNCTIONS
|
|
Affected functions are
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR readdir_r (),
|
|
.IR getgrgid_r (),
|
|
.IR getgrnam_r (),
|
|
.IR getpwnam_r (),
|
|
.IR getpwuid_r (),
|
|
.IR flockfile (),
|
|
.IR ftrylockfile (),
|
|
.IR funlockfile (),
|
|
.IR getc_unlocked (),
|
|
.IR getchar_unlocked (),
|
|
.IR putc_unlocked (),
|
|
.IR putchar_unlocked (),
|
|
.IR rand_r (),
|
|
.IR strerror_r (),
|
|
.IR strtok_r (),
|
|
.IR asctime_r (),
|
|
.IR ctime_r (),
|
|
.IR gmtime_r (),
|
|
.IR localtime_r ().
|
|
.in
|
|
.fi
|
|
.SS TSP - _POSIX_THREAD_SPORADIC_SERVER - _SC_THREAD_SPORADIC_SERVER
|
|
This option implies the
|
|
.B _POSIX_THREAD_PRIORITY_SCHEDULING
|
|
option.
|
|
Affected functions are
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR sched_getparam (),
|
|
.IR sched_setparam (),
|
|
.IR sched_setscheduler ().
|
|
.in
|
|
.fi
|
|
.SS THR - _POSIX_THREADS - _SC_THREADS
|
|
Basic support for POSIX threads is available.
|
|
The following functions are present:
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR pthread_atfork (),
|
|
.IR pthread_attr_destroy (),
|
|
.IR pthread_attr_getdetachstate (),
|
|
.IR pthread_attr_getschedparam (),
|
|
.IR pthread_attr_init (),
|
|
.IR pthread_attr_setdetachstate (),
|
|
.IR pthread_attr_setschedparam (),
|
|
.IR pthread_cancel (),
|
|
.IR pthread_cleanup_push (),
|
|
.IR pthread_cleanup_pop (),
|
|
.IR pthread_cond_broadcast (),
|
|
.IR pthread_cond_destroy (),
|
|
.IR pthread_cond_init (),
|
|
.IR pthread_cond_signal (),
|
|
.IR pthread_cond_timedwait (),
|
|
.IR pthread_cond_wait (),
|
|
.IR pthread_condattr_destroy (),
|
|
.IR pthread_condattr_init (),
|
|
.IR pthread_create (),
|
|
.IR pthread_detach (),
|
|
.IR pthread_equal (),
|
|
.IR pthread_exit (),
|
|
.IR pthread_getspecific (),
|
|
.IR pthread_join (),
|
|
.IR pthread_key_create (),
|
|
.IR pthread_key_delete (),
|
|
.IR pthread_mutex_destroy (),
|
|
.IR pthread_mutex_init (),
|
|
.IR pthread_mutex_lock (),
|
|
.IR pthread_mutex_trylock (),
|
|
.IR pthread_mutex_unlock (),
|
|
.IR pthread_mutexattr_destroy (),
|
|
.IR pthread_mutexattr_init (),
|
|
.IR pthread_once (),
|
|
.IR pthread_rwlock_destroy (),
|
|
.IR pthread_rwlock_init (),
|
|
.IR pthread_rwlock_rdlock (),
|
|
.IR pthread_rwlock_tryrdlock (),
|
|
.IR pthread_rwlock_trywrlock (),
|
|
.IR pthread_rwlock_unlock (),
|
|
.IR pthread_rwlock_wrlock (),
|
|
.IR pthread_rwlockattr_destroy (),
|
|
.IR pthread_rwlockattr_init (),
|
|
.IR pthread_self (),
|
|
.IR pthread_setcancelstate (),
|
|
.IR pthread_setcanceltype (),
|
|
.IR pthread_setspecific (),
|
|
.IR pthread_testcancel ().
|
|
.in
|
|
.fi
|
|
.SS TMO - _POSIX_TIMEOUTS - _SC_TIMEOUTS
|
|
The following functions are present:
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR mq_timedreceive (),
|
|
.IR mq_timedsend (),
|
|
.IR pthread_mutex_timedlock (),
|
|
.IR pthread_rwlock_timedrdlock (),
|
|
.IR pthread_rwlock_timedwrlock (),
|
|
.IR sem_timedwait (),
|
|
.IR posix_trace_timedgetnext_event ().
|
|
.in
|
|
.fi
|
|
.SS TMR - _POSIX_TIMERS - _SC_TIMERS
|
|
The following functions are present:
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR clock_getres (),
|
|
.IR clock_gettime (),
|
|
.IR clock_settime (),
|
|
.IR nanosleep (),
|
|
.IR timer_create (),
|
|
.IR timer_delete (),
|
|
.IR timer_gettime (),
|
|
.IR timer_getoverrun (),
|
|
.IR timer_settime ().
|
|
.in
|
|
.fi
|
|
.SS TRC - _POSIX_TRACE - _SC_TRACE
|
|
POSIX tracing is available.
|
|
The following functions are present:
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR posix_trace_attr_destroy (),
|
|
.IR posix_trace_attr_getclockres (),
|
|
.IR posix_trace_attr_getcreatetime (),
|
|
.IR posix_trace_attr_getgenversion (),
|
|
.IR posix_trace_attr_getmaxdatasize (),
|
|
.IR posix_trace_attr_getmaxsystemeventsize (),
|
|
.IR posix_trace_attr_getmaxusereventsize (),
|
|
.IR posix_trace_attr_getname (),
|
|
.IR posix_trace_attr_getstreamfullpolicy (),
|
|
.IR posix_trace_attr_getstreamsize (),
|
|
.IR posix_trace_attr_init (),
|
|
.IR posix_trace_attr_setmaxdatasize (),
|
|
.IR posix_trace_attr_setname (),
|
|
.IR posix_trace_attr_setstreamsize (),
|
|
.IR posix_trace_attr_setstreamfullpolicy (),
|
|
.IR posix_trace_clear (),
|
|
.IR posix_trace_create (),
|
|
.IR posix_trace_event (),
|
|
.IR posix_trace_eventid_equal (),
|
|
.IR posix_trace_eventid_get_name (),
|
|
.IR posix_trace_eventid_open (),
|
|
.IR posix_trace_eventtypelist_getnext_id (),
|
|
.IR posix_trace_eventtypelist_rewind (),
|
|
.IR posix_trace_flush (),
|
|
.IR posix_trace_get_attr (),
|
|
.IR posix_trace_get_status (),
|
|
.IR posix_trace_getnext_event (),
|
|
.IR posix_trace_shutdown (),
|
|
.IR posix_trace_start (),
|
|
.IR posix_trace_stop (),
|
|
.IR posix_trace_trygetnext_event ().
|
|
.in
|
|
.fi
|
|
.SS TEF - _POSIX_TRACE_EVENT_FILTER - _SC_TRACE_EVENT_FILTER
|
|
This option implies the
|
|
.B _POSIX_TRACE
|
|
option.
|
|
The following functions are present:
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR posix_trace_eventset_add (),
|
|
.IR posix_trace_eventset_del (),
|
|
.IR posix_trace_eventset_empty (),
|
|
.IR posix_trace_eventset_fill (),
|
|
.IR posix_trace_eventset_ismember (),
|
|
.IR posix_trace_get_filter (),
|
|
.IR posix_trace_set_filter (),
|
|
.IR posix_trace_trid_eventid_open ().
|
|
.in
|
|
.fi
|
|
.SS TRI - _POSIX_TRACE_INHERIT - _SC_TRACE_INHERIT
|
|
Tracing children of the traced process is supported.
|
|
This option implies the
|
|
.B _POSIX_TRACE
|
|
option.
|
|
The following functions are present:
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR posix_trace_attr_getinherited (),
|
|
.IR posix_trace_attr_setinherited ().
|
|
.in
|
|
.fi
|
|
.SS TRL - _POSIX_TRACE_LOG - _SC_TRACE_LOG
|
|
This option implies the
|
|
.B _POSIX_TRACE
|
|
option.
|
|
The following functions are present:
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR posix_trace_attr_getlogfullpolicy (),
|
|
.IR posix_trace_attr_getlogsize (),
|
|
.IR posix_trace_attr_setlogfullpolicy (),
|
|
.IR posix_trace_attr_setlogsize (),
|
|
.IR posix_trace_close (),
|
|
.IR posix_trace_create_withlog (),
|
|
.IR posix_trace_open (),
|
|
.IR posix_trace_rewind ().
|
|
.in
|
|
.fi
|
|
.SS TYM - _POSIX_TYPED_MEMORY_OBJECTS - _SC_TYPED_MEMORY_OBJECT
|
|
The following functions are present:
|
|
.PP
|
|
.nf
|
|
.in +4n
|
|
.IR posix_mem_offset (),
|
|
.IR posix_typed_mem_get_info (),
|
|
.IR posix_typed_mem_open ().
|
|
.in
|
|
.fi
|
|
.SS --- - _POSIX_VDISABLE
|
|
Always present (probably 0).
|
|
Value to set a changeable special control
|
|
character to indicate that it is disabled.
|
|
.SH XOPEN EXTENSIONS
|
|
.BR _XOPEN_CRYPT ,
|
|
.BR _XOPEN_LEGACY ,
|
|
.BR _XOPEN_REALTIME ,
|
|
.BR _XOPEN_REALTIME_THREADS ,
|
|
.BR _XOPEN_UNIX .
|
|
.\" To be described.
|
|
.SH SEE ALSO
|
|
.BR sysconf (3),
|
|
.BR standards (7)
|