diff options
Diffstat (limited to 'linuxthreads_db/td_ta_event_getmsg.c')
| -rw-r--r-- | linuxthreads_db/td_ta_event_getmsg.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/linuxthreads_db/td_ta_event_getmsg.c b/linuxthreads_db/td_ta_event_getmsg.c deleted file mode 100644 index c3a4492a12..0000000000 --- a/linuxthreads_db/td_ta_event_getmsg.c +++ /dev/null @@ -1,129 +0,0 @@ -/* 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" -#include <linuxthreads/internals.h> - - -td_err_e -td_ta_event_getmsg (const td_thragent_t *ta, td_event_msg_t *msg) -{ - /* XXX I cannot think of another way but using a static variable. */ - static td_thrhandle_t th; - td_eventbuf_t event; - psaddr_t addr; - - LOG ("td_ta_event_getmsg"); - - /* Test whether the TA parameter is ok. */ - if (! ta_ok (ta)) - return TD_BADTA; - - /* Get the pointer to the thread descriptor with the last event. */ - if (ps_pdread (ta->ph, ta->pthread_last_event, - &addr, sizeof (void *)) != PS_OK) - return TD_ERR; /* XXX Other error value? */ - - /* If the pointer is NULL no event occurred. */ - if (addr == 0) - return TD_NOMSG; - - /* Read the even structure from the target. */ - if (ps_pdread (ta->ph, - ((char *) addr - + 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) - { - /* Oh well, this means the last event was already read. So - we have to look for any other event. */ - struct pthread_handle_struct handles[ta->pthread_threads_max]; - int num; - int i; - - /* Read the number of currently active threads. */ - if (ps_pdread (ta->ph, ta->pthread_handles_num, &num, sizeof (int)) - != PS_OK) - return TD_ERR; /* XXX Other error value? */ - - /* Now read the handles. */ - if (ps_pdread (ta->ph, ta->handles, handles, - ta->pthread_threads_max * sizeof (handles[0])) != PS_OK) - return TD_ERR; /* XXX Other error value? */ - - for (i = 0; i < ta->pthread_threads_max && num > 0; ++i) - { - if (handles[i].h_descr == NULL) - /* No entry here. */ - continue; - - /* First count this active thread. */ - --num; - - if (handles[i].h_descr == addr) - /* We already handled this. */ - continue; - - /* Read the event data for this thread. */ - if (ps_pdread (ta->ph, - ((char *) handles[i].h_descr - + offsetof (struct _pthread_descr_struct, - p_eventbuf)), - &event, sizeof (td_eventbuf_t)) != PS_OK) - return TD_ERR; - - if (event.eventnum != TD_EVENT_NONE) - { - /* We found a thread with an unreported event. */ - addr = handles[i].h_descr; - break; - } - } - - /* If we haven't found any other event signal this to the user. */ - if (event.eventnum == TD_EVENT_NONE) - return TD_NOMSG; - } - - /* Generate the thread descriptor. */ - th.th_ta_p = (td_thragent_t *) ta; - th.th_unique = addr; - - /* 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 (ta->ph, - ((char *) addr - + offsetof (struct _pthread_descr_struct, p_eventbuf)), - &event, sizeof (td_eventbuf_t)) != PS_OK) - return TD_ERR; /* XXX Other error value? */ - - return TD_OK; -} |