diff options
Diffstat (limited to 'linuxthreads_db/td_thr_event_getmsg.c')
| -rw-r--r-- | linuxthreads_db/td_thr_event_getmsg.c | 65 | 
1 files changed, 65 insertions, 0 deletions
| diff --git a/linuxthreads_db/td_thr_event_getmsg.c b/linuxthreads_db/td_thr_event_getmsg.c new file mode 100644 index 0000000000..bf4ddd4ade --- /dev/null +++ b/linuxthreads_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; +} | 
