Inital import

[l4.git] / l4 / pkg / uclibc / lib / contrib / uclibc / libpthread / linuxthreads.old_db / td_thr_event_getmsg.c

diff --git a/l4/pkg/uclibc/lib/contrib/uclibc/libpthread/linuxthreads.old_db/td_thr_event_getmsg.c b/l4/pkg/uclibc/lib/contrib/uclibc/libpthread/linuxthreads.old_db/td_thr_event_getmsg.c
new file mode 100644 (file)
index 0000000..bf4ddd4
--- /dev/null
+++ b/l4/pkg/uclibc/lib/contrib/uclibc/libpthread/linuxthreads.old_db/td_thr_event_getmsg.c
@@ -0,0 +1,65 @@
+/* Retrieve event.
+   Copyright (C) 1999, 2001, 2002 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stddef.h>
+#include <string.h>
+
+#include "thread_dbP.h"
+
+
+td_err_e
+td_thr_event_getmsg (const td_thrhandle_t *th, td_event_msg_t *msg)
+{
+  td_eventbuf_t event;
+
+  LOG ("td_thr_event_getmsg");
+
+  /* If the thread descriptor has not yet been created there cannot be
+     any event.  */
+  if (th->th_unique == NULL)
+    return TD_NOMSG;
+
+  /* Read the even structure from the target.  */
+  if (ps_pdread (th->th_ta_p->ph,
+                ((char *) th->th_unique
+                 + offsetof (struct _pthread_descr_struct, p_eventbuf)),
+                &event, sizeof (td_eventbuf_t)) != PS_OK)
+    return TD_ERR;     /* XXX Other error value?  */
+
+  /* Check whether an event occurred.  */
+  if (event.eventnum == TD_EVENT_NONE)
+    /* Nothing.  */
+    return TD_NOMSG;
+
+  /* Fill the user's data structure.  */
+  msg->event = event.eventnum;
+  msg->th_p = th;
+  msg->msg.data = (uintptr_t) event.eventdata;
+
+  /* And clear the event message in the target.  */
+  memset (&event, '\0', sizeof (td_eventbuf_t));
+  if (ps_pdwrite (th->th_ta_p->ph,
+                 ((char *) th->th_unique
+                  + offsetof (struct _pthread_descr_struct, p_eventbuf)),
+                 &event, sizeof (td_eventbuf_t)) != PS_OK)
+    return TD_ERR;     /* XXX Other error value?  */
+
+  return TD_OK;
+}