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-rw-r--r--lib/libthr/thread/thr_detach.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/lib/libthr/thread/thr_detach.c b/lib/libthr/thread/thr_detach.c
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+++ b/lib/libthr/thread/thr_detach.c
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+/*
+ * Copyright (c) 2005 David Xu <davidxu@freebsd.org>
+ * Copyright (C) 2003 Daniel M. Eischen <deischen@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice unmodified, this list of conditions, and the following
+ * disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ *
+ */
+
+#include "namespace.h"
+#include <sys/types.h>
+#include <errno.h>
+#include <pthread.h>
+#include "un-namespace.h"
+
+#include "thr_private.h"
+
+__weak_reference(_pthread_detach, pthread_detach);
+
+int
+_pthread_detach(pthread_t pthread)
+{
+ struct pthread *curthread = _get_curthread();
+ int rval;
+
+ if (pthread == NULL)
+ return (EINVAL);
+
+ THREAD_LIST_LOCK(curthread);
+ if ((rval = _thr_find_thread(curthread, pthread,
+ /*include dead*/1)) != 0) {
+ THREAD_LIST_UNLOCK(curthread);
+ return (rval);
+ }
+
+ /* Check if the thread is already detached or has a joiner. */
+ if ((pthread->tlflags & TLFLAGS_DETACHED) != 0 ||
+ (pthread->joiner != NULL)) {
+ THREAD_LIST_UNLOCK(curthread);
+ return (EINVAL);
+ }
+
+ /* Flag the thread as detached. */
+ pthread->tlflags |= TLFLAGS_DETACHED;
+ if (pthread->state == PS_DEAD)
+ THR_GCLIST_ADD(pthread);
+ THREAD_LIST_UNLOCK(curthread);
+
+ return (0);
+}
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