diff options
Diffstat (limited to 'man7/posixoptions.7')
| -rw-r--r-- | man7/posixoptions.7 | 128 |
1 files changed, 64 insertions, 64 deletions
diff --git a/man7/posixoptions.7 b/man7/posixoptions.7 index b0dea3d..2b3e3bc 100644 --- a/man7/posixoptions.7 +++ b/man7/posixoptions.7 @@ -2,7 +2,7 @@ .\" .\" SPDX-License-Identifier: GPL-2.0-or-later .\" -.TH posixoptions 7 2022-10-30 "Linux man-pages 6.05.01" +.TH posixoptions 7 2023-11-01 "Linux man-pages 6.7" .SH NAME posixoptions \- optional parts of the POSIX standard .SH DESCRIPTION @@ -19,7 +19,7 @@ From shell scripts one can use .BR getconf (1). For more detail, see .BR sysconf (3). -.PP +.P We give the name of the POSIX abbreviation, the option, the name of the .BR sysconf (3) parameter used to inquire about the option, and possibly @@ -28,7 +28,7 @@ Much more precise detail can be found in the POSIX standard itself, versions of which can nowadays be accessed freely on the web. .SS ADV - _POSIX_ADVISORY_INFO - _SC_ADVISORY_INFO The following advisory functions are present: -.PP +.P .nf .in +4n .IR posix_fadvise () @@ -42,7 +42,7 @@ The header .I <aio.h> is present. The following functions are present: -.PP +.P .nf .in +4n .IR aio_cancel () @@ -62,7 +62,7 @@ and .B _POSIX_THREAD_SAFE_FUNCTIONS options. The following functions are present: -.PP +.P .nf .in +4n .IR pthread_barrier_destroy () @@ -80,8 +80,8 @@ The following functions are present: If this option is in effect (as it always is under POSIX.1-2001), then only root may change the owner of a file, and nonroot can set the group of a file only to one of the groups it belongs to. -This affects the following functions -.PP +This affects the following functions: +.P .nf .in +4n .IR chown () @@ -94,7 +94,7 @@ This option implies the .B _POSIX_TIMERS option. The following functions are present: -.PP +.P .nf .in +4n .IR pthread_condattr_getclock () @@ -102,7 +102,7 @@ The following functions are present: .IR clock_nanosleep () .in .fi -.PP +.P If .B CLOCK_REALTIME is changed by the function @@ -136,7 +136,7 @@ Internet Protocol Version 6 is supported. If this option is in effect (as it always is under POSIX.1-2001), then the system implements POSIX-style job control, and the following functions are present: -.PP +.P .nf .in +4n .IR setpgid () @@ -154,7 +154,7 @@ The include file .I <sys/mman.h> is present. The following functions are present: -.PP +.P .nf .in +4n .IR mmap () @@ -165,7 +165,7 @@ The following functions are present: .SS ML - _POSIX_MEMLOCK - _SC_MEMLOCK Shared memory can be locked into core. The following functions are present: -.PP +.P .nf .in +4n .IR mlockall () @@ -175,7 +175,7 @@ The following functions are present: .SS MR/MLR - _POSIX_MEMLOCK_RANGE - _SC_MEMLOCK_RANGE More precisely, ranges can be locked into core. The following functions are present: -.PP +.P .nf .in +4n .IR mlock () @@ -191,7 +191,7 @@ The include file .I <mqueue.h> is present. The following functions are present: -.PP +.P .nf .in +4n .IR mq_close () @@ -211,7 +211,7 @@ This option implies the .B _POSIX_TIMERS option. The following functions are affected: -.PP +.P .nf .in +4n .IR aio_suspend () @@ -236,7 +236,7 @@ This property may be dependent on the path prefix of the component. .SS PIO - _POSIX_PRIORITIZED_IO - _SC_PRIORITIZED_IO This option says that one can specify priorities for asynchronous I/O. This affects the functions -.PP +.P .nf .in +4n .IR aio_read () @@ -248,7 +248,7 @@ The include file .I <sched.h> is present. The following functions are present: -.PP +.P .nf .in +4n .IR sched_get_priority_max () @@ -261,11 +261,11 @@ The following functions are present: .IR sched_yield () .in .fi -.PP +.P If also .B _POSIX_SPAWN is in effect, then the following functions are present: -.PP +.P .nf .in +4n .IR posix_spawnattr_getschedparam () @@ -277,7 +277,7 @@ is in effect, then the following functions are present: .SS RS - _POSIX_RAW_SOCKETS Raw sockets are supported. The following functions are affected: -.PP +.P .nf .in +4n .IR getsockopt () @@ -292,9 +292,9 @@ Conversely, under POSIX.1-2001 the .B _POSIX_THREADS option implies this option. -.PP +.P The following functions are present: -.PP +.P .in +4n .nf .IR pthread_rwlock_destroy () @@ -311,7 +311,7 @@ The following functions are present: .SS RTS - _POSIX_REALTIME_SIGNALS - _SC_REALTIME_SIGNALS Realtime signals are supported. The following functions are present: -.PP +.P .nf .in +4n .IR sigqueue () @@ -323,7 +323,7 @@ The following functions are present: If this option is in effect (as it always is under POSIX.1-2001), then POSIX regular expressions are supported and the following functions are present: -.PP +.P .nf .in +4n .IR regcomp () @@ -336,7 +336,7 @@ and the following functions are present: If this option is in effect (as it always is under POSIX.1-2001), then a process has a saved set-user-ID and a saved set-group-ID. The following functions are affected: -.PP +.P .nf .in +4n .IR exec () @@ -354,7 +354,7 @@ The include file .I <semaphore.h> is present. The following functions are present: -.PP +.P .nf .in +4n .IR sem_close () @@ -370,7 +370,7 @@ The following functions are present: .fi .SS SHM - _POSIX_SHARED_MEMORY_OBJECTS - _SC_SHARED_MEMORY_OBJECTS The following functions are present: -.PP +.P .nf .in +4n .IR mmap () @@ -389,13 +389,13 @@ This option describes support for process creation in a context where it is difficult or impossible to use .IR fork (), for example, because no MMU is present. -.PP +.P If .B _POSIX_SPAWN is in effect, then the include file .I <spawn.h> and the following functions are present: -.PP +.P .nf .in +4n .IR posix_spawn () @@ -417,12 +417,12 @@ and the following functions are present: .IR posix_spawnp () .in .fi -.PP +.P If also .B _POSIX_PRIORITY_SCHEDULING is in effect, then the following functions are present: -.PP +.P .nf .in +4n .IR posix_spawnattr_getschedparam () @@ -438,7 +438,7 @@ and .B _POSIX_THREAD_SAFE_FUNCTIONS options. The following functions are present: -.PP +.P .nf .in +4n .IR pthread_spin_destroy () @@ -456,7 +456,7 @@ This option implies the .B _POSIX_PRIORITY_SCHEDULING option. The following functions are affected: -.PP +.P .nf .in +4n .IR sched_setparam () @@ -465,7 +465,7 @@ The following functions are affected: .fi .SS SIO - _POSIX_SYNCHRONIZED_IO - _SC_SYNCHRONIZED_IO The following functions are affected: -.PP +.P .nf .in +4n .IR open () @@ -476,7 +476,7 @@ The following functions are affected: .fi .SS TSA - _POSIX_THREAD_ATTR_STACKADDR - _SC_THREAD_ATTR_STACKADDR The following functions are affected: -.PP +.P .nf .in +4n .IR pthread_attr_getstack () @@ -487,7 +487,7 @@ The following functions are affected: .fi .SS TSS - _POSIX_THREAD_ATTR_STACKSIZE - _SC_THREAD_ATTR_STACKSIZE The following functions are affected: -.PP +.P .nf .in +4n .IR pthread_attr_getstack () @@ -502,7 +502,7 @@ This option implies the .B _POSIX_TIMERS option. The following functions are affected: -.PP +.P .nf .in +4n .IR pthread_getcpuclockid () @@ -514,7 +514,7 @@ The following functions are affected: .fi .SS TPI - _POSIX_THREAD_PRIO_INHERIT - _SC_THREAD_PRIO_INHERIT The following functions are affected: -.PP +.P .nf .in +4n .IR pthread_mutexattr_getprotocol () @@ -523,7 +523,7 @@ The following functions are affected: .fi .SS TPP - _POSIX_THREAD_PRIO_PROTECT - _SC_THREAD_PRIO_PROTECT The following functions are affected: -.PP +.P .nf .in +4n .IR pthread_mutex_getprioceiling () @@ -538,7 +538,7 @@ The following functions are affected: If this option is in effect, the different threads inside a process can run with different priorities and/or different schedulers. The following functions are affected: -.PP +.P .nf .in +4n .IR pthread_attr_getinheritsched () @@ -554,7 +554,7 @@ The following functions are affected: .fi .SS TSH - _POSIX_THREAD_PROCESS_SHARED - _SC_THREAD_PROCESS_SHARED The following functions are affected: -.PP +.P .nf .in +4n .IR pthread_barrierattr_getpshared () @@ -569,7 +569,7 @@ The following functions are affected: .fi .SS TSF - _POSIX_THREAD_SAFE_FUNCTIONS - _SC_THREAD_SAFE_FUNCTIONS The following functions are affected: -.PP +.P .nf .in +4n .IR readdir_r () @@ -598,7 +598,7 @@ This option implies the .B _POSIX_THREAD_PRIORITY_SCHEDULING option. The following functions are affected: -.PP +.P .nf .in +4n .IR sched_getparam () @@ -609,7 +609,7 @@ The following functions are affected: .SS THR - _POSIX_THREADS - _SC_THREADS Basic support for POSIX threads is available. The following functions are present: -.PP +.P .nf .in +4n .IR pthread_atfork () @@ -664,7 +664,7 @@ The following functions are present: .fi .SS TMO - _POSIX_TIMEOUTS - _SC_TIMEOUTS The following functions are present: -.PP +.P .nf .in +4n .IR mq_timedreceive () @@ -678,7 +678,7 @@ The following functions are present: .fi .SS TMR - _POSIX_TIMERS - _SC_TIMERS The following functions are present: -.PP +.P .nf .in +4n .IR clock_getres () @@ -695,7 +695,7 @@ The following functions are present: .SS TRC - _POSIX_TRACE - _SC_TRACE POSIX tracing is available. The following functions are present: -.PP +.P .nf .in +4n .IR posix_trace_attr_destroy () @@ -736,7 +736,7 @@ This option implies the .B _POSIX_TRACE option. The following functions are present: -.PP +.P .nf .in +4n .IR posix_trace_eventset_add () @@ -755,7 +755,7 @@ This option implies the .B _POSIX_TRACE option. The following functions are present: -.PP +.P .nf .in +4n .IR posix_trace_attr_getinherited () @@ -767,7 +767,7 @@ This option implies the .B _POSIX_TRACE option. The following functions are present: -.PP +.P .nf .in +4n .IR posix_trace_attr_getlogfullpolicy () @@ -782,7 +782,7 @@ The following functions are present: .fi .SS TYM - _POSIX_TYPED_MEMORY_OBJECTS - _SC_TYPED_MEMORY_OBJECT The following functions are present: -.PP +.P .nf .in +4n .IR posix_mem_offset () @@ -797,7 +797,7 @@ character to indicate that it is disabled. .SH X/OPEN SYSTEM INTERFACE EXTENSIONS .SS XSI - _XOPEN_CRYPT - _SC_XOPEN_CRYPT The following functions are present: -.PP +.P .nf .in +4n .IR crypt () @@ -806,7 +806,7 @@ The following functions are present: .fi .SS XSI - _XOPEN_REALTIME - _SC_XOPEN_REALTIME This option implies the following options: -.PP +.P .PD 0 .TP .BR _POSIX_ASYNCHRONOUS_IO == 200112L @@ -841,7 +841,7 @@ This option implies the following options: .SS ADV - --- - --- The Advanced Realtime option group implies that the following options are all defined to 200112L: -.PP +.P .PD 0 .TP .B _POSIX_ADVISORY_INFO @@ -872,7 +872,7 @@ are all defined to 200112L: .SS XSI - _XOPEN_REALTIME_THREADS - _SC_XOPEN_REALTIME_THREADS This option implies that the following options are all defined to 200112L: -.PP +.P .PD 0 .TP .B _POSIX_THREAD_PRIO_INHERIT @@ -884,7 +884,7 @@ are all defined to 200112L: .SS ADVANCED REALTIME THREADS - --- - --- This option implies that the following options are all defined to 200112L: -.PP +.P .PD 0 .TP .B _POSIX_BARRIERS @@ -909,7 +909,7 @@ are all defined to 200112L: .SS TRACING - --- - --- This option implies that the following options are all defined to 200112L: -.PP +.P .PD 0 .TP .B _POSIX_TRACE @@ -922,7 +922,7 @@ are all defined to 200112L: .PD .SS STREAMS - _XOPEN_STREAMS - _SC_XOPEN_STREAMS The following functions are present: -.PP +.P .nf .in +4n .IR fattach () @@ -939,7 +939,7 @@ The following functions are present: Functions included in the legacy option group were previously mandatory, but are now optional in this version. The following functions are present: -.PP +.P .nf .in +4n .IR bcmp () @@ -959,7 +959,7 @@ The following functions are present: .fi .SS XSI - _XOPEN_UNIX - _SC_XOPEN_UNIX The following functions are present: -.PP +.P .nf .in +4n .IR mmap () @@ -967,9 +967,9 @@ The following functions are present: .IR msync () .in .fi -.PP +.P This option implies the following options: -.PP +.P .PD 0 .TP .B _POSIX_FSYNC @@ -988,9 +988,9 @@ This option implies the following options: .TP .B _POSIX_THREADS .PD -.PP +.P This option may imply the following options from the XSI option groups: -.PP +.P .PD 0 .TP .RB "Encryption (" _XOPEN_CRYPT ) |