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65 lines
1.9 KiB
65 lines
1.9 KiB
9 years ago
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/*
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Copyright (c) 2016, Kari Tristan Helgason <kthelgason@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _UV_PTHREAD_BARRIER_
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#define _UV_PTHREAD_BARRIER_
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#include <errno.h>
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#include <pthread.h>
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#include <semaphore.h> /* sem_t */
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#define PTHREAD_BARRIER_SERIAL_THREAD 0x12345
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/*
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* To maintain ABI compatibility with
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* libuv v1.x struct is padded according
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* to target platform
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*/
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#if defined(__ANDROID__)
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# define UV_BARRIER_STRUCT_PADDING \
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sizeof(pthread_mutex_t) + \
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sizeof(pthread_cond_t) + \
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sizeof(unsigned int) - \
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sizeof(void *)
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#elif defined(__APPLE__)
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# define UV_BARRIER_STRUCT_PADDING \
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sizeof(pthread_mutex_t) + \
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2 * sizeof(sem_t) + \
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2 * sizeof(unsigned int) - \
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sizeof(void *)
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#endif
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typedef struct {
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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unsigned threshold;
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unsigned in;
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unsigned out;
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} _uv_barrier;
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typedef struct {
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_uv_barrier* b;
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char _pad[UV_BARRIER_STRUCT_PADDING];
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} pthread_barrier_t;
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int pthread_barrier_init(pthread_barrier_t* barrier,
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const void* barrier_attr,
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unsigned count);
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int pthread_barrier_wait(pthread_barrier_t* barrier);
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int pthread_barrier_destroy(pthread_barrier_t *barrier);
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#endif /* _UV_PTHREAD_BARRIER_ */
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