2008-10-25 03:11:03 +00:00
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.\" Copyright (c) 2008 Linux Foundation, written by Michael Kerrisk
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.\" <mtk.manpages@gmail.com>
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.\"
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.\" Permission is granted to make and distribute verbatim copies of this
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.\" permission notice identical to this one.
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.\" manual page may be incorrect or out-of-date. The author(s) assume no
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2008-11-05 14:43:20 +00:00
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.TH PTHREAD_ATTR_SETSTACKSIZE 3 2008-11-05 "Linux" "Linux Programmer's Manual"
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2008-10-25 03:11:03 +00:00
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.SH NAME
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pthread_attr_setstacksize, pthread_attr_getstacksize \- set/get stack size
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attribute in thread attributes object
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.SH SYNOPSIS
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.nf
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.B #include <pthread.h>
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.BI "int pthread_attr_setstacksize(pthread_attr_t *" attr \
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", size_t " stacksize );
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.BI "int pthread_attr_getstacksize(pthread_attr_t *" attr \
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", size_t *" stacksize );
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.sp
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Compile and link with \fI\-pthread\fP.
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.SH DESCRIPTION
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The
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2008-10-27 15:49:30 +00:00
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.BR pthread_attr_setstacksize ()
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2008-10-25 03:11:03 +00:00
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function sets the stack size attribute of the
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thread attributes object referred to by
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.I attr
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to the value specified in
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.IR stacksize .
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The stack size attribute determines the minimum size (in bytes) that
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will be allocated for threads created using the thread attributes object
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.IR attr .
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The
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.BR pthread_attr_getstacksize ()
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function returns the stack size attribute of the
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thread attributes object referred to by
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.I attr
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in the buffer pointed to by
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.IR stacksize .
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.SH RETURN VALUE
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On success, these functions return 0;
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intro.1, time.1, adjtimex.2, capget.2, eventfd.2, fcntl.2, getrlimit.2, getsockopt.2, gettimeofday.2, intro.2, ioctl_list.2, ioperm.2, mlock.2, pivot_root.2, poll.2, prctl.2, ptrace.2, sched_setscheduler.2, select_tut.2, semget.2, sigaltstack.2, signalfd.2, sysctl.2, timer_settime.2, timerfd_create.2, wait.2, CPU_SET.3, argz_add.3, assert_perror.3, atexit.3, backtrace.3, bcmp.3, clearenv.3, ctime.3, dl_iterate_phdr.3, dlopen.3, ecvt.3, errno.3, error.3, ether_aton.3, exit.3, fenv.3, ferror.3, finite.3, flockfile.3, fnmatch.3, fpathconf.3, fpclassify.3, ftime.3, ftok.3, ftw.3, fwide.3, getaddrinfo.3, gethostbyname.3, getlogin.3, getnameinfo.3, getnetent.3, getopt.3, getprotoent.3, getrpcent.3, getservent.3, glob.3, hsearch.3, inet.3, isalpha.3, iswalnum.3, iswalpha.3, iswblank.3, iswcntrl.3, iswctype.3, iswdigit.3, iswgraph.3, iswlower.3, iswprint.3, iswpunct.3, iswspace.3, iswupper.3, iswxdigit.3, longjmp.3, lsearch.3, malloc.3, matherr.3, mblen.3, mbsinit.3, mbtowc.3, on_exit.3, printf.3, pthread_attr_init.3, pthread_attr_setaffinity_np.3, pthread_attr_setdetachstate.3, pthread_attr_setguardsize.3, pthread_attr_setinheritsched.3, pthread_attr_setschedparam.3, pthread_attr_setschedpolicy.3, pthread_attr_setscope.3, pthread_attr_setstack.3, pthread_attr_setstackaddr.3, pthread_attr_setstacksize.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_equal.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_setaffinity_np.3, pthread_setcancelstate.3, pthread_setconcurrency.3, pthread_setschedparam.3, pthread_setschedprio.3, ptsname.3, putenv.3, putgrent.3, raise.3, rcmd.3, regex.3, rexec.3, rpc.3, rpmatch.3, rtnetlink.3, scandir.3, sem_init.3, setaliasent.3, setbuf.3, setenv.3, setjmp.3, signbit.3, stdio_ext.3, strtod.3, strtol.3, strtoul.3, system.3, termios.3, timeradd.3, tzset.3, ualarm.3, wctomb.3, xdr.3, st.4, tty_ioctl.4, core.5, elf.5, proc.5, bootparam.7, capabilities.7, icmp.7, ip.7, ipv6.7, math_error.7, mdoc.samples.7, mq_overview.7, pthreads.7, raw.7, regex.7, socket.7, tcp.7, tzselect.8: Global fix: s/non-zero/nonzero/
The tendency in English, as prescribed in style guides like
Chicago MoS, is towards removing hyphens after prefixes
like "non-" etc.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2010-01-16 16:40:55 +00:00
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on error, they return a nonzero error number.
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2008-10-25 03:11:03 +00:00
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.SH ERRORS
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.BR pthread_attr_setstacksize ()
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can fail with the following error:
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.TP
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.B EINVAL
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The stack size is less than
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.BR PTHREAD_STACK_MIN
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(16384) bytes.
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2008-11-05 14:43:20 +00:00
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.PP
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On some systems,
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.\" e.g., MacOS
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.BR pthread_attr_setstacksize ()
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can fail with the error
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.B EINVAL
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if
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.I stacksize
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is not a multiple of the system page size.
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2008-10-25 03:11:03 +00:00
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.SH VERSIONS
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These functions are provided by glibc since version 2.1.
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.SH CONFORMING TO
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POSIX.1-2001.
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.SH EXAMPLE
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See
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.BR pthread_create (3).
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.SH NOTES
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For details on the default stack size of new threads, see
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.BR pthread_create (3).
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A thread's stack size is fixed at the time of thread creation.
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Only the main thread can dynamically grow its stack.
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The
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.BR pthread_attr_setstack (3)
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function allows an application to set both the size and location
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of a caller-allocated stack that is to be used by a thread.
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.SH BUGS
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As at glibc 2.8,
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if the specified
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.I stacksize
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is not a multiple of
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.BR STACK_ALIGN
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(16 bytes on most architectures), it may be rounded
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.IR downwards ,
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in violation of POSIX.1-2001, which says that the allocated stack will
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be at least
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.I stacksize
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bytes.
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.SH SEE ALSO
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.BR getrlimit (2),
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.BR pthread_attr_init (3),
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.BR pthread_attr_setguardsize (3),
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.BR pthread_attr_setstack (3),
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.BR pthread_create (3),
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.BR pthreads (7)
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