about summary refs log tree commit diff
path: root/sysdeps/htl/pt-setspecific.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/htl/pt-setspecific.c')
-rw-r--r--sysdeps/htl/pt-setspecific.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/sysdeps/htl/pt-setspecific.c b/sysdeps/htl/pt-setspecific.c
new file mode 100644
index 0000000000..8492b5dafa
--- /dev/null
+++ b/sysdeps/htl/pt-setspecific.c
@@ -0,0 +1,50 @@
+/* pthread_setspecific.  Generic version.
+   Copyright (C) 2002-2018 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#include <pthread.h>
+
+#include <pt-internal.h>
+
+int
+__pthread_setspecific (pthread_key_t key, const void *value)
+{
+  struct __pthread *self = _pthread_self ();
+
+  if (key < 0 || key >= __pthread_key_count
+      || __pthread_key_destructors[key] == PTHREAD_KEY_INVALID)
+    return EINVAL;
+
+  if (key >= self->thread_specifics_size)
+    {
+      /* Amortize reallocation cost.  */
+      int newsize = 2 * key + 1;
+      void **new = realloc (self->thread_specifics,
+			    newsize * sizeof (new[0]));
+      if (new == NULL)
+	return ENOMEM;
+
+      memset (&new[self->thread_specifics_size], 0,
+	      (newsize - self->thread_specifics_size) * sizeof (new[0]));
+      self->thread_specifics = new;
+      self->thread_specifics_size = newsize;
+    }
+
+  self->thread_specifics[key] = (void *) value;
+  return 0;
+}
+strong_alias (__pthread_setspecific, pthread_setspecific);