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authorrpj <rpj>2002-02-08 01:51:17 +0000
committerrpj <rpj>2002-02-08 01:51:17 +0000
commitb29903300adc22ed277bbaa356aca8ed0c245957 (patch)
tree02921a99a145dda1e78a315cc75016443839f2e0 /attr_getstacksize.c
parent14118935d2d6863a4746223d8e22c2e58ffebab5 (diff)
Copyright notice updates; module splitting; POSIX version
conditional compilation; refinements; bug fixes. See the ChangeLog.
Diffstat (limited to 'attr_getstacksize.c')
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1 files changed, 102 insertions, 0 deletions
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+/*
+ * attr_getstacksize.c
+ *
+ * Description:
+ * This translation unit implements operations on thread attribute objects.
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 1998 John E. Bossom
+ * Copyright(C) 1999,2002 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@ise.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include "pthread.h"
+#include "implement.h"
+
+/* ignore warning "unreferenced formal parameter" */
+#ifdef _MSC_VER
+#pragma warning( disable : 4100 )
+#endif
+
+int
+pthread_attr_getstacksize(const pthread_attr_t *attr,
+ size_t *stacksize)
+ /*
+ * ------------------------------------------------------
+ * DOCPUBLIC
+ * This function determines the size of the stack on
+ * which threads created with 'attr' will run.
+ *
+ * PARAMETERS
+ * attr
+ * pointer to an instance of pthread_attr_t
+ *
+ * stacksize
+ * pointer to size_t into which is returned the
+ * stack size, in bytes.
+ *
+ *
+ * DESCRIPTION
+ * This function determines the size of the stack on
+ * which threads created with 'attr' will run.
+ *
+ * NOTES:
+ * 1) Function supported only if this macro is
+ * defined:
+ *
+ * _POSIX_THREAD_ATTR_STACKSIZE
+ *
+ * 2) Use on newly created attributes object to
+ * find the default stack size.
+ *
+ * RESULTS
+ * 0 successfully retrieved stack size,
+ * EINVAL 'attr' is invalid
+ * ENOSYS function not supported
+ *
+ * ------------------------------------------------------
+ */
+{
+#ifdef _POSIX_THREAD_ATTR_STACKSIZE
+
+ if (is_attr(attr) != 0)
+ {
+ return EINVAL;
+ }
+
+ /* Everything is okay. */
+ *stacksize = (*attr)->stacksize;
+ return 0;
+
+#else
+
+ return ENOSYS;
+
+#endif /* _POSIX_THREAD_ATTR_STACKSIZE */
+
+}
+