Merged changes from kopensolaris-gnu project

http://git.csclub.uwaterloo.ca/?p=kopensolaris-gnu/glibc.git

Commits from 9157319 to bad8ac8.

This is only partial patch, some changes to not apply
and will be resovled and committed next.

1 files changed, 73 insertions, 0 deletions

diff --git a/nptl/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/gai_misc.h b/nptl/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/gai_misc.h
new file mode 100644
index 0000000000..8601d8325d
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/gai_misc.h
@@ -0,0 +1,73 @@
+/* Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   OpenSolaris bits contributed by David Bartley
+    <dtbartle@csclub.uwaterloo.ca>, 2008.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* We define a special synchronization primitive for AIO.  POSIX
+   conditional variables would be ideal but the pthread_cond_*wait
+   operations do not return on EINTR.  This is a requirement for
+   correct aio_suspend and lio_listio implementations.  */
+
+#include <assert.h>
+#include <signal.h>
+#include <pthreadP.h>
+
+#undef DONT_NEED_GAI_MISC_COND
+
+
+#define gai_start_notify_thread __gai_start_notify_thread
+#define gai_create_helper_thread __gai_create_helper_thread
+
+extern inline void
+__gai_start_notify_thread (void)
+{
+  sigset_t ss;
+  sigemptyset (&ss);
+  sigprocmask (SIG_SETMASK, &ss, NULL);
+}
+
+extern inline int
+__gai_create_helper_thread (pthread_t *threadp, void *(*tf) (void *),
+			    void *arg)
+{
+  pthread_attr_t attr;
+
+  /* Make sure the thread is created detached.  */
+  pthread_attr_init (&attr);
+  pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
+
+  /* The helper thread needs only very little resources.  */
+  (void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
+
+  /* Block all signals in the helper thread.  To do this thoroughly we
+     temporarily have to block all signals here.  */
+  sigset_t ss;
+  sigset_t oss;
+  sigfillset (&ss);
+  sigprocmask (SIG_SETMASK, &ss, &oss);
+
+  int ret = pthread_create (threadp, &attr, tf, arg);
+
+  /* Restore the signal mask.  */
+  sigprocmask (SIG_SETMASK, &oss, NULL);
+
+  (void) pthread_attr_destroy (&attr);
+  return ret;
+}
+
+#include <resolv/gai_misc.h>