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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 19:01:57 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 19:01:57 +0000 |
commit | cab56836b146bc129f1ad43f0393d95a9deca63a (patch) | |
tree | 4f4e655319bbac78fca170da05275c127429b460 /sysdeps/htl/pt-destroy-specific.c | |
parent | 04ac1241a4cd004872282c2c82ec37fa33925292 (diff) | |
parent | 82dd75a7f436a19047325d62182590c9f9e23a78 (diff) |
Merge branch 't/tls' into refs/top-bases/t/tls-threadvar
Diffstat (limited to 'sysdeps/htl/pt-destroy-specific.c')
-rw-r--r-- | sysdeps/htl/pt-destroy-specific.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sysdeps/htl/pt-destroy-specific.c b/sysdeps/htl/pt-destroy-specific.c new file mode 100644 index 0000000000..84f724abe2 --- /dev/null +++ b/sysdeps/htl/pt-destroy-specific.c @@ -0,0 +1,77 @@ +/* __pthread_destory_specific. Hurd version. + Copyright (C) 2002-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, see + <http://www.gnu.org/licenses/>. */ + +#include <pthread.h> +#include <stdlib.h> + +#include <pt-internal.h> + +void +__pthread_destroy_specific (struct __pthread *thread) +{ + int i; + int seen_one; + + /* Check if there is any thread specific data. */ + if (thread->thread_specifics == NULL) + return; + + __pthread_key_lock_ready (); + + /* Iterate and call the destructors on any thread specific data. */ + for (;;) + { + seen_one = 0; + + __pthread_mutex_lock (&__pthread_key_lock); + + for (i = 0; i < __pthread_key_count && i < thread->thread_specifics_size; + i++) + { + void *value; + + if (__pthread_key_destructors[i] == PTHREAD_KEY_INVALID) + continue; + + value = thread->thread_specifics[i]; + if (value != NULL) + { + thread->thread_specifics[i] = 0; + + if (__pthread_key_destructors[i]) + { + seen_one = 1; + __pthread_key_destructors[i] (value); + } + } + } + + __pthread_mutex_unlock (&__pthread_key_lock); + + if (!seen_one) + break; + + /* This may take a very long time. Let those blocking on + pthread_key_create or pthread_key_delete make progress. */ + sched_yield (); + } + + free (thread->thread_specifics); + thread->thread_specifics = 0; + thread->thread_specifics_size = 0; +} |