summaryrefslogtreecommitdiff
path: root/libpthread/linuxthreads/sysdeps/pthread/res-state.c
diff options
context:
space:
mode:
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/pthread/res-state.c')
-rw-r--r--libpthread/linuxthreads/sysdeps/pthread/res-state.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/pthread/res-state.c b/libpthread/linuxthreads/sysdeps/pthread/res-state.c
new file mode 100644
index 000000000..6b4354972
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/pthread/res-state.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 1996, 97, 98, 2002, 2003 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 <resolv.h>
+#include <tls.h>
+#include <linuxthreads/internals.h>
+#include <sysdep-cancel.h>
+
+#ifndef __UCLIBC_HAS_TLS__
+# undef _res
+extern struct __res_state _res;
+#endif
+
+/* When threaded, _res may be a per-thread variable. */
+struct __res_state *
+#ifndef __UCLIBC_HAS_TLS__
+weak_const_function
+#endif
+__res_state (void)
+{
+#ifndef __UCLIBC_HAS_TLS__
+ if (! SINGLE_THREAD_P)
+ {
+ pthread_descr self = thread_self();
+ return LIBC_THREAD_GETMEM (self, p_resp);
+ }
+ return &_res;
+#else
+ return __resp;
+#endif
+}
+libc_hidden_def (__res_state)