commit 9ed821d7e5d875a3395740a9cc2545671fa429b7
author lh <lh@exm.com> Fri Apr 07 01:36:19 2023 -0700
committer lh <lh@exm.com> Fri Apr 07 01:36:19 2023 -0700
tree 121b5ff9a43e30066e3b33d57065b04bcf9bbabf
parent a10a76fcf09e2ec7e9055902f242dff467ab9654

[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b

ap/libc/glibc/glibc-2.22/nptl/pthread_setschedprio.c

diff --git a/ap/libc/glibc/glibc-2.22/nptl/pthread_setschedprio.c b/ap/libc/glibc/glibc-2.22/nptl/pthread_setschedprio.c
new file mode 100644
index 0000000..b628822
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/nptl/pthread_setschedprio.c
@@ -0,0 +1,65 @@
+/* Copyright (C) 2002-2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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 <errno.h>
+#include <sched.h>
+#include <string.h>
+#include <sched.h>
+#include "pthreadP.h"
+#include <lowlevellock.h>
+
+
+int
+pthread_setschedprio (threadid, prio)
+     pthread_t threadid;
+     int prio;
+{
+  struct pthread *pd = (struct pthread *) threadid;
+
+  /* Make sure the descriptor is valid.  */
+  if (INVALID_TD_P (pd))
+    /* Not a valid thread handle.  */
+    return ESRCH;
+
+  int result = 0;
+  struct sched_param param;
+  param.sched_priority = prio;
+
+  lll_lock (pd->lock, LLL_PRIVATE);
+
+  /* If the thread should have higher priority because of some
+     PTHREAD_PRIO_PROTECT mutexes it holds, adjust the priority.  */
+  if (__builtin_expect (pd->tpp != NULL, 0) && pd->tpp->priomax > prio)
+    param.sched_priority = pd->tpp->priomax;
+
+  /* Try to set the scheduler information.  */
+  if (__glibc_unlikely (sched_setparam (pd->tid, &param) == -1))
+    result = errno;
+  else
+    {
+      /* We succeeded changing the kernel information.  Reflect this
+	 change in the thread descriptor.  */
+      param.sched_priority = prio;
+      memcpy (&pd->schedparam, &param, sizeof (struct sched_param));
+      pd->flags |= ATTR_FLAG_SCHED_SET;
+    }
+
+  lll_unlock (pd->lock, LLL_PRIVATE);
+
+  return result;
+}