about summary refs log tree commit diff
path: root/sysdeps/mach/hurd/htl/pt-mutex-timedlock.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/mach/hurd/htl/pt-mutex-timedlock.c')
-rw-r--r--sysdeps/mach/hurd/htl/pt-mutex-timedlock.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/htl/pt-mutex-timedlock.c b/sysdeps/mach/hurd/htl/pt-mutex-timedlock.c
new file mode 100644
index 0000000000..0457445c86
--- /dev/null
+++ b/sysdeps/mach/hurd/htl/pt-mutex-timedlock.c
@@ -0,0 +1,79 @@
+/* pthread_mutex_timedlock.  Hurd version.
+   Copyright (C) 2016-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License
+   as published by the Free Software Foundation; either
+   version 2 of the license, or (at your option) any later version.
+
+   This program 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 Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this program; if not, see
+   <http://www.gnu.org/licenses/>.
+*/
+
+#include <pthread.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <pt-internal.h>
+#include "pt-mutex.h"
+#include <hurdlock.h>
+
+int
+pthread_mutex_timedlock (pthread_mutex_t *mtxp, const struct timespec *tsp)
+{
+  struct __pthread *self;
+  int ret, flags = mtxp->__flags & GSYNC_SHARED;
+
+  switch (MTX_TYPE (mtxp))
+    {
+    case PT_MTX_NORMAL:
+      ret = lll_abstimed_lock (&mtxp->__lock, tsp, flags);
+      break;
+
+    case PT_MTX_RECURSIVE:
+      self = _pthread_self ();
+      if (mtx_owned_p (mtxp, self, flags))
+	{
+	  if (__glibc_unlikely (mtxp->__cnt + 1 == 0))
+	    return EAGAIN;
+
+	  ++mtxp->__cnt;
+	  ret = 0;
+	}
+      else if ((ret = lll_abstimed_lock (&mtxp->__lock, tsp, flags)) == 0)
+	{
+	  mtx_set_owner (mtxp, self, flags);
+	  mtxp->__cnt = 1;
+	}
+
+      break;
+
+    case PT_MTX_ERRORCHECK:
+      self = _pthread_self ();
+      if (mtx_owned_p (mtxp, self, flags))
+	ret = EDEADLK;
+      else if ((ret = lll_abstimed_lock (&mtxp->__lock, tsp, flags)) == 0)
+	mtx_set_owner (mtxp, self, flags);
+
+      break;
+
+    case PT_MTX_NORMAL | PTHREAD_MUTEX_ROBUST:
+    case PT_MTX_RECURSIVE | PTHREAD_MUTEX_ROBUST:
+    case PT_MTX_ERRORCHECK | PTHREAD_MUTEX_ROBUST:
+      self = _pthread_self ();
+      ROBUST_LOCK (self, mtxp, lll_robust_abstimed_lock, tsp, flags);
+      break;
+
+    default:
+      ret = EINVAL;
+      break;
+    }
+
+  return ret;
+}