pthread_attr_getstacksize(3)

1PTHREAD_ATTR_SETSTACKSIZE(3)Linux Programmer's ManuaPlTHREAD_ATTR_SETSTACKSIZE(3)
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NAME

6       pthread_attr_setstacksize,  pthread_attr_getstacksize  -  set/get stack
7       size attribute in thread attributes object
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SYNOPSIS

10       #include <pthread.h>
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12       int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize);
13       int pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize);
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15       Compile and link with -pthread.
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DESCRIPTION

18       The pthread_attr_setstacksize() function sets the stack size  attribute
19       of the thread attributes object referred to by attr to the value speci‐
20       fied in stacksize.
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22       The stack size attribute determines the minimum size  (in  bytes)  that
23       will  be  allocated  for  threads  created  using the thread attributes
24       object attr.
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26       The  pthread_attr_getstacksize()  function  returns  the   stack   size
27       attribute  of  the  thread attributes object referred to by attr in the
28       buffer pointed to by stacksize.
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RETURN VALUE

31       On success, these functions return 0; on error, they return  a  nonzero
32       error number.
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ERRORS

35       pthread_attr_setstacksize() can fail with the following error:
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37       EINVAL The stack size is less than PTHREAD_STACK_MIN (16384) bytes.
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39       On  some  systems,  pthread_attr_setstacksize() can fail with the error
40       EINVAL if stacksize is not a multiple of the system page size.
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VERSIONS

43       These functions are provided by glibc since version 2.1.
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ATTRIBUTES

46       For  an  explanation  of  the  terms  used   in   this   section,   see
47       attributes(7).
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49       ┌─────────────────────────────┬───────────────┬─────────┐
50       │Interface                    │ Attribute     │ Value   │
51       ├─────────────────────────────┼───────────────┼─────────┤
52       │pthread_attr_setstacksize(), │ Thread safety │ MT-Safe │
53       │pthread_attr_getstacksize()  │               │         │
54       └─────────────────────────────┴───────────────┴─────────┘

CONFORMING TO

56       POSIX.1-2001, POSIX.1-2008.
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NOTES

59       For details on the default stack size of new threads, see  pthread_cre‐
60       ate(3).
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62       A  thread's  stack  size is fixed at the time of thread creation.  Only
63       the main thread can dynamically grow its stack.
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65       The pthread_attr_setstack(3) function allows an application to set both
66       the size and location of a caller-allocated stack that is to be used by
67       a thread.
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BUGS

70       As at glibc 2.8, if the  specified  stacksize  is  not  a  multiple  of
71       STACK_ALIGN  (16  bytes on most architectures), it may be rounded down‐
72       ward, in violation of POSIX.1, which says that the allocated stack will
73       be at least stacksize bytes.
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EXAMPLE

76       See pthread_create(3).
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COLOPHON

83       This page is part of release 4.15 of the Linux  man-pages  project.   A
84       description  of  the project, information about reporting bugs, and the
85       latest    version    of    this    page,    can     be     found     at
86       https://www.kernel.org/doc/man-pages/.
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90Linux                             2017-09-15      PTHREAD_ATTR_SETSTACKSIZE(3)