nptl: Add pthread_attr_setsigmask_np, pthread_attr_getsigmask_np

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/nptl/pthread_attr_setsigmask_internal.c b/nptl/pthread_attr_setsigmask_internal.c
new file mode 100644
index 0000000000..a2941b4ee9
--- /dev/null
+++ b/nptl/pthread_attr_setsigmask_internal.c
@@ -0,0 +1,45 @@
+/* Set the signal mask in a POSIX thread attribute.  Internal variant.
+   Copyright (C) 2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <pthreadP.h>
+#include <internal-signals.h>
+
+int
+__pthread_attr_setsigmask_internal (pthread_attr_t *attr,
+                                    const sigset_t *sigmask)
+{
+  struct pthread_attr *iattr = (struct pthread_attr *) attr;
+
+  if (sigmask == NULL)
+    {
+      /* Mark the signal mask as unset if it is present.  */
+      if (iattr->extension != NULL)
+        iattr->extension->sigmask_set = false;
+      return 0;
+    }
+
+  int ret = __pthread_attr_extension (iattr);
+  if (ret != 0)
+    return ret;
+
+  iattr->extension->sigmask = *sigmask;
+  iattr->extension->sigmask_set = true;
+
+  return 0;
+}
+libc_hidden_def (__pthread_attr_setsigmask_internal)