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-rw-r--r--linuxthreads_db/td_thr_clear_event.c35
1 files changed, 31 insertions, 4 deletions
diff --git a/linuxthreads_db/td_thr_clear_event.c b/linuxthreads_db/td_thr_clear_event.c
index c3c633b71d..8ef8cbbc40 100644
--- a/linuxthreads_db/td_thr_clear_event.c
+++ b/linuxthreads_db/td_thr_clear_event.c
@@ -1,4 +1,4 @@
-/* Disable specific event.
+/* Disable specific event for thread.
    Copyright (C) 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
@@ -18,13 +18,40 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#include <stddef.h>
+
 #include "thread_dbP.h"
 
 
 td_err_e
-td_thr_clear_event (const td_thrhandle_t *th, td_thr_events_t *event)
+td_thr_clear_event (th, event)
+     const td_thrhandle_t *th;
+     td_thr_events_t *event;
 {
-  /* XXX We have to figure out what has to be done.  */
+  td_thr_events_t old_event;
+  int i;
+
   LOG (__FUNCTION__);
-  return TD_NOCAPAB;
+
+  /* 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_thrhandle_t)) != PS_OK)
+    return TD_ERR;	/* XXX Other error value?  */
+
+  /* Remove the set 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_thrhandle_t)) != PS_OK)
+    return TD_ERR;	/* XXX Other error value?  */
+
+  return TD_OK;
 }