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glibc  2.9
td_ta_delete.c
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00001 /* Detach to target process.
00002    Copyright (C) 1999, 2001 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
00005 
00006    The GNU C Library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Lesser General Public
00008    License as published by the Free Software Foundation; either
00009    version 2.1 of the License, or (at your option) any later version.
00010 
00011    The GNU C Library is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014    Lesser General Public License for more details.
00015 
00016    You should have received a copy of the GNU Lesser General Public
00017    License along with the GNU C Library; if not, write to the Free
00018    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00019    02111-1307 USA.  */
00020 
00021 #include <stdlib.h>
00022 
00023 #include "thread_dbP.h"
00024 
00025 
00026 td_err_e
00027 td_ta_delete (td_thragent_t *ta)
00028 {
00029   LOG ("td_ta_delete");
00030 
00031   /* Safety check.  */
00032   if (ta == NULL || __td_agent_list == NULL)
00033     return TD_BADTA;
00034 
00035   /* Remove the handle from the list.  */
00036   if (ta == __td_agent_list->ta)
00037     /* It's the first element of the list.  */
00038     __td_agent_list = __td_agent_list->next;
00039   else
00040     {
00041       /* We have to search for it.  */
00042       struct agent_list *runp = __td_agent_list;
00043 
00044       while (runp->next != NULL && runp->next->ta != ta)
00045        runp = runp->next;
00046 
00047       if (runp->next == NULL)
00048        /* It's not a valid decriptor since it is not in the list.  */
00049        return TD_BADTA;
00050 
00051       runp->next = runp->next->next;
00052     }
00053 
00054   /* The handle was allocated in `td_ta_new'.  */
00055   free (ta);
00056 
00057   return TD_OK;
00058 }