111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
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/*
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* pthread_attr_setstacksize.c
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*
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* Description:
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* This translation unit implements operations on thread attribute objects.
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*
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* --------------------------------------------------------------------------
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*
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* Pthreads-win32 - POSIX Threads Library for Win32
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* Copyright(C) 1998 John E. Bossom
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* Copyright(C) 1999,2005 Pthreads-win32 contributors
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*
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* Contact Email: rpj@callisto.canberra.edu.au
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*
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* The current list of contributors is contained
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* in the file CONTRIBUTORS included with the source
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* code distribution. The list can also be seen at the
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* following World Wide Web location:
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* http://sources.redhat.com/pthreads-win32/contributors.html
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library in the file COPYING.LIB;
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* if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "pthread.h"
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#include "implement.h"
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int
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pthread_attr_setstacksize (pthread_attr_t * attr, size_t stacksize)
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/*
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* ------------------------------------------------------
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* DOCPUBLIC
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* This function specifies the size of the stack on
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* which threads created with 'attr' will run.
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*
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* PARAMETERS
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* attr
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* pointer to an instance of pthread_attr_t
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*
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* stacksize
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* stack size, in bytes.
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*
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*
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* DESCRIPTION
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* This function specifies the size of the stack on
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* which threads created with 'attr' will run.
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*
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* NOTES:
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* 1) Function supported only if this macro is
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* defined:
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*
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* _POSIX_THREAD_ATTR_STACKSIZE
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*
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* 2) Find the default first (using
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* pthread_attr_getstacksize), then increase
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* by multiplying.
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*
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* 3) Only use if thread needs more than the
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* default.
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*
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* RESULTS
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* 0 successfully set stack size,
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* EINVAL 'attr' is invalid or stacksize too
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* small or too big.
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* ENOSYS function not supported
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*
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* ------------------------------------------------------
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*/
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{
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#if defined(_POSIX_THREAD_ATTR_STACKSIZE)
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#if PTHREAD_STACK_MIN > 0
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/* Verify that the stack size is within range. */
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if (stacksize < PTHREAD_STACK_MIN)
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{
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return EINVAL;
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}
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#endif
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if (ptw32_is_attr (attr) != 0)
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{
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return EINVAL;
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}
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/* Everything is okay. */
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(*attr)->stacksize = stacksize;
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return 0;
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#else
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return ENOSYS;
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#endif /* _POSIX_THREAD_ATTR_STACKSIZE */
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}
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