Update

[l4.git] / l4 / pkg / l4re-core / uclibc / lib / contrib / uclibc / libpthread / linuxthreads_db / td_thr_set_event.c

diff --git a/l4/pkg/l4re-core/uclibc/lib/contrib/uclibc/libpthread/linuxthreads_db/td_thr_set_event.c b/l4/pkg/l4re-core/uclibc/lib/contrib/uclibc/libpthread/linuxthreads_db/td_thr_set_event.c
new file mode 100644 (file)
index 0000000..31a04f1
--- /dev/null
+++ b/l4/pkg/l4re-core/uclibc/lib/contrib/uclibc/libpthread/linuxthreads_db/td_thr_set_event.c
@@ -0,0 +1,59 @@
+/* Enable specific event for thread.
+   Copyright (C) 1999, 2001, 2002, 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
+
+   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 <stddef.h>
+
+#include "thread_dbP.h"
+
+
+td_err_e
+td_thr_set_event(const td_thrhandle_t *th, td_thr_events_t *event)
+{
+  td_thr_events_t old_event;
+  int i;
+
+  LOG ("td_thr_set_event");
+
+  /* What shall we do if no thread descriptor exists but the user
+     wants to set an event?  */
+  if (th->th_unique == NULL)
+    return TD_NOTALLOC;
+
+  /* Write the new value into the thread data structure.  */
+  if (ps_pdread (th->th_ta_p->ph,
+                ((char *) th->th_unique
+                 + offsetof (struct _pthread_descr_struct,
+                             p_eventbuf.eventmask)),
+                &old_event, sizeof (td_thr_events_t)) != PS_OK)
+    return TD_ERR;     /* XXX Other error value?  */
+
+  /* Or the new bits in.  */
+  for (i = 0; i < TD_EVENTSIZE; ++i)
+    old_event.event_bits[i] |= event->event_bits[i];
+
+  /* Write the new value into the thread data structure.  */
+  if (ps_pdwrite (th->th_ta_p->ph,
+                 ((char *) th->th_unique
+                  + offsetof (struct _pthread_descr_struct,
+                              p_eventbuf.eventmask)),
+                 &old_event, sizeof (td_thr_events_t)) != PS_OK)
+    return TD_ERR;     /* XXX Other error value?  */
+
+  return TD_OK;
+}