/usr/include/astrometry/an-thread-pthreads.h is in libastrometry-dev 0.73+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | /*
# This file is part of the Astrometry.net suite.
# Licensed under a 3-clause BSD style license - see LICENSE
*/
#ifndef AN_THREAD_PTHREADS_H
#define AN_THREAD_PTHREADS_H
#include <pthread.h>
#define AN_THREAD_DECLARE_ONCE(X) pthread_once_t X = PTHREAD_ONCE_INIT
#define AN_THREAD_DECLARE_STATIC_ONCE(X) static pthread_once_t X = PTHREAD_ONCE_INIT
#define AN_THREAD_CALL_ONCE(X, F) pthread_once(&X, F)
#define AN_THREAD_DECLARE_MUTEX(X) pthread_mutex_t X = PTHREAD_MUTEX_INITIALIZER
#define AN_THREAD_DECLARE_STATIC_MUTEX(X) static pthread_mutex_t X = PTHREAD_MUTEX_INITIALIZER
#define AN_THREAD_LOCK(X) pthread_mutex_lock(&X)
/*
DEBUG
#define AN_THREAD_DECLARE_STATIC_MUTEX(X) \
static pthread_mutex_t X; \
static inline void init_mutex_ ## X() { \
pthread_mutexattr_t attr; \
pthread_mutexattr_init(&attr); \
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK); \
pthread_mutex_init(&X, &attr); \
pthread_mutexattr_destroy(&attr); \
} \
static pthread_once_t X_once = PTHREAD_ONCE_INIT
#define AN_THREAD_LOCK(X) { \
pthread_once(&X_once, init_mutex_ ## X); \
pthread_mutex_lock(&X); \
}
*/
#define AN_THREAD_UNLOCK(X) pthread_mutex_unlock(&X)
#endif
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