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When applications redirect some functions they might get called before libpthread is fully initialized. They may still expected pthread_self and cancellable functions to work, so cope with such calls in that situation.
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* Get calling thread's ID.
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Copyright (C) 2000-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <pthread.h>
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#include <pt-internal.h>
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/* Return the thread ID of the calling thread. */
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pthread_t
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__pthread_self (void)
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{
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struct __pthread *self;
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if (___pthread_self == NULL)
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/* We are not initialized yet, we are the first thread. */
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return 1;
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self = _pthread_self ();
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assert (self != NULL);
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return self->thread;
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}
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weak_alias (__pthread_self, pthread_self);
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