mirror of
https://code.videolan.org/videolan/dav1d
synced 2024-09-27 11:50:24 +02:00
103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/*
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* Copyright © 2018, VideoLAN and dav1d authors
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* Copyright © 2018, Janne Grunau
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include <stddef.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <pthread.h>
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#include "alloc_fail.h"
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static int fail_probability;
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void dav1d_setup_alloc_fail(unsigned seed, unsigned probability) {
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srand(seed);
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while (probability >= RAND_MAX)
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probability >>= 1;
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fail_probability = probability;
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}
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void * __wrap_malloc(size_t);
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void * __wrap_malloc(size_t sz) {
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if (rand() < fail_probability)
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return NULL;
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return malloc(sz);
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}
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#if defined(HAVE_POSIX_MEMALIGN)
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int __wrap_posix_memalign(void **memptr, size_t alignment, size_t size);
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int __wrap_posix_memalign(void **memptr, size_t alignment, size_t size) {
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if (rand() < fail_probability)
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return ENOMEM;
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return posix_memalign(memptr, alignment, size);
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}
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#else
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#error "HAVE_POSIX_MEMALIGN required"
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#endif
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int __wrap_pthread_create(pthread_t *, const pthread_attr_t *,
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void *(*) (void *), void *);
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int __wrap_pthread_create(pthread_t *thread, const pthread_attr_t *attr,
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void *(*start_routine) (void *), void *arg)
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{
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if (rand() < (fail_probability + RAND_MAX/16))
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return EAGAIN;
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return pthread_create(thread, attr, start_routine, arg);
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}
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int __wrap_pthread_mutex_init(pthread_mutex_t *,
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const pthread_mutexattr_t *);
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int __wrap_pthread_mutex_init(pthread_mutex_t *restrict mutex,
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const pthread_mutexattr_t *restrict attr)
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{
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if (rand() < (fail_probability + RAND_MAX/8))
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return ENOMEM;
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return pthread_mutex_init(mutex, attr);
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}
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int __wrap_pthread_cond_init(pthread_cond_t *,
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const pthread_condattr_t *);
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int __wrap_pthread_cond_init(pthread_cond_t *restrict cond,
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const pthread_condattr_t *restrict attr)
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{
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if (rand() < (fail_probability + RAND_MAX/16))
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return ENOMEM;
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return pthread_cond_init(cond, attr);
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}
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