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-rw-r--r--htl/pt-getattr.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/htl/pt-getattr.c b/htl/pt-getattr.c
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+++ b/htl/pt-getattr.c
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+/* Thread attributes retrieval.
+ Copyright (C) 2008-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C 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 2.1 of the License, or (at your option) any later version.
+
+ The GNU C 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 the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <assert.h>
+#include <errno.h>
+#include <pthread.h>
+
+#include <pt-internal.h>
+
+/* Initialize thread attribute *ATTR with attributes corresponding to the
+ already running thread THREAD. It shall be called on an uninitialized ATTR
+ and destroyed with pthread_attr_destroy when no longer needed. */
+int
+__pthread_getattr_np (pthread_t thread, pthread_attr_t *attr)
+{
+ struct __pthread *pthread;
+
+ pthread = __pthread_getid (thread);
+ if (pthread == NULL)
+ return ESRCH;
+
+ /* Some attributes (schedparam, inheritsched, contentionscope and schedpolicy)
+ are not supported yet, so fill them with our default values. */
+ *attr = __pthread_default_attr;
+
+ attr->__stackaddr = pthread->stackaddr +
+ ((pthread->guardsize + __vm_page_size - 1)
+ / __vm_page_size * __vm_page_size);
+ attr->__stacksize = pthread->stacksize;
+ attr->__guardsize = pthread->guardsize;
+ attr->__detachstate = (pthread->state == PTHREAD_DETACHED
+ ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE);
+
+ return 0;
+}
+weak_alias (__pthread_getattr_np, pthread_getattr_np)