diff options
Diffstat (limited to 'libpthread/nptl_db/td_ta_thr_iter.c')
-rw-r--r-- | libpthread/nptl_db/td_ta_thr_iter.c | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/libpthread/nptl_db/td_ta_thr_iter.c b/libpthread/nptl_db/td_ta_thr_iter.c deleted file mode 100644 index 66e437665..000000000 --- a/libpthread/nptl_db/td_ta_thr_iter.c +++ /dev/null @@ -1,148 +0,0 @@ -/* Iterate over a process's threads. - Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.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 "thread_dbP.h" - - -static td_err_e -iterate_thread_list (td_thragent_t *ta, td_thr_iter_f *callback, - void *cbdata_p, td_thr_state_e state, int ti_pri, - psaddr_t head, int fake_empty) -{ - td_err_e err; - psaddr_t next, ofs; - void *copy; - - /* Test the state. - XXX This is incomplete. Normally this test should be in the loop. */ - if (state != TD_THR_ANY_STATE) - return TD_OK; - - err = DB_GET_FIELD (next, ta, head, list_t, next, 0); - if (err != TD_OK) - return err; - - if (next == 0 && fake_empty) - { - /* __pthread_initialize_minimal has not run. - There is just the main thread to return. */ - td_thrhandle_t th; - err = td_ta_map_lwp2thr (ta, ps_getpid (ta->ph), &th); - if (err == TD_OK) - err = callback (&th, cbdata_p) != 0 ? TD_DBERR : TD_OK; - return err; - } - - /* Cache the offset from struct pthread to its list_t member. */ - err = DB_GET_FIELD_ADDRESS (ofs, ta, 0, pthread, list, 0); - if (err != TD_OK) - return err; - - if (ta->ta_sizeof_pthread == 0) - { - err = _td_check_sizeof (ta, &ta->ta_sizeof_pthread, SYM_SIZEOF_pthread); - if (err != TD_OK) - return err; - } - copy = __alloca (ta->ta_sizeof_pthread); - - while (next != head) - { - psaddr_t addr, schedpolicy, schedprio; - - addr = next - (ofs - (psaddr_t) 0); - if (next == 0 || addr == 0) /* Sanity check. */ - return TD_DBERR; - - /* Copy the whole descriptor in once so we can access the several - fields locally. Excess copying in one go is much better than - multiple ps_pdread calls. */ - if (ps_pdread (ta->ph, addr, copy, ta->ta_sizeof_pthread) != PS_OK) - return TD_ERR; - - err = DB_GET_FIELD_LOCAL (schedpolicy, ta, copy, pthread, - schedpolicy, 0); - if (err != TD_OK) - break; - err = DB_GET_FIELD_LOCAL (schedprio, ta, copy, pthread, - schedparam_sched_priority, 0); - if (err != TD_OK) - break; - - /* Now test whether this thread matches the specified conditions. */ - - /* Only if the priority level is as high or higher. */ - int descr_pri = ((uintptr_t) schedpolicy == SCHED_OTHER - ? 0 : (uintptr_t) schedprio); - if (descr_pri >= ti_pri) - { - /* Yep, it matches. Call the callback function. */ - td_thrhandle_t th; - th.th_ta_p = (td_thragent_t *) ta; - th.th_unique = addr; - if (callback (&th, cbdata_p) != 0) - return TD_DBERR; - } - - /* Get the pointer to the next element. */ - err = DB_GET_FIELD_LOCAL (next, ta, copy + (ofs - (psaddr_t) 0), list_t, - next, 0); - if (err != TD_OK) - break; - } - - return err; -} - - -td_err_e -td_ta_thr_iter (const td_thragent_t *ta_arg, td_thr_iter_f *callback, - void *cbdata_p, td_thr_state_e state, int ti_pri, - sigset_t *ti_sigmask_p, unsigned int ti_user_flags) -{ - td_thragent_t *const ta = (td_thragent_t *) ta_arg; - td_err_e err; - psaddr_t list = 0; - - LOG ("td_ta_thr_iter"); - - /* Test whether the TA parameter is ok. */ - if (! ta_ok (ta)) - return TD_BADTA; - - /* The thread library keeps two lists for the running threads. One - list contains the thread which are using user-provided stacks - (this includes the main thread) and the other includes the - threads for which the thread library allocated the stacks. We - have to iterate over both lists separately. We start with the - list of threads with user-defined stacks. */ - - err = DB_GET_SYMBOL (list, ta, __stack_user); - if (err == TD_OK) - err = iterate_thread_list (ta, callback, cbdata_p, state, ti_pri, list, 1); - - /* And the threads with stacks allocated by the implementation. */ - if (err == TD_OK) - err = DB_GET_SYMBOL (list, ta, stack_used); - if (err == TD_OK) - err = iterate_thread_list (ta, callback, cbdata_p, state, ti_pri, list, 0); - - return err; -} |