From 187dd78d7bd1c03fcf16e54a30314512d38e1a4a Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 27 Feb 2003 18:13:05 +0000 Subject: Major update for pthreads, based in large part on improvements from glibc 2.3. This should make threads much more efficient. -Erik --- libpthread/linuxthreads_db/td_thr_validate.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) (limited to 'libpthread/linuxthreads_db/td_thr_validate.c') diff --git a/libpthread/linuxthreads_db/td_thr_validate.c b/libpthread/linuxthreads_db/td_thr_validate.c index 354471071..e18b5728b 100644 --- a/libpthread/linuxthreads_db/td_thr_validate.c +++ b/libpthread/linuxthreads_db/td_thr_validate.c @@ -1,5 +1,5 @@ /* Validate a thread handle. - Copyright (C) 1999, 2001 Free Software Foundation, Inc. + Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , 1999. @@ -19,6 +19,7 @@ 02111-1307 USA. */ #include "thread_dbP.h" +#include "../linuxthreads/internals.h" td_err_e @@ -27,14 +28,26 @@ td_thr_validate (const td_thrhandle_t *th) struct pthread_handle_struct *handles = th->th_ta_p->handles; int pthread_threads_max = th->th_ta_p->pthread_threads_max; int cnt; + struct pthread_handle_struct phc; - LOG (__FUNCTION__); + LOG ("td_thr_validate"); + + /* A special case: if the program just starts up the handle is + NULL. */ + if (th->th_unique == NULL) + { + /* Read the first handle. If the pointer to the thread + descriptor is not NULL this is an error. */ + if (ps_pdread (th->th_ta_p->ph, handles, &phc, + sizeof (struct pthread_handle_struct)) != PS_OK) + return TD_ERR; /* XXX Other error value? */ + + return phc.h_descr == NULL ? TD_OK : TD_NOTHR; + } /* Now get all descriptors, one after the other. */ for (cnt = 0; cnt < pthread_threads_max; ++cnt, ++handles) { - struct pthread_handle_struct phc; - if (ps_pdread (th->th_ta_p->ph, handles, &phc, sizeof (struct pthread_handle_struct)) != PS_OK) return TD_ERR; /* XXX Other error value? */ -- cgit v1.2.3