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//
// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
// POSIX atomics.
#include "core/nng_impl.h"
#ifdef NNG_PLATFORM_POSIX
#ifdef NNG_HAVE_STDATOMIC
#include <stdatomic.h>
bool
nni_atomic_flag_test_and_set(nni_atomic_flag *f)
{
return (atomic_flag_test_and_set(&f->f));
}
void
nni_atomic_flag_reset(nni_atomic_flag *f)
{
atomic_flag_clear(&f->f);
}
#else
#include <pthread.h>
static pthread_mutex_t plat_atomic_lock = PTHREAD_MUTEX_INITIALIZER;
bool
nni_atomic_flag_test_and_set(nni_atomic_flag *f)
{
bool v;
pthread_mutex_lock(&plat_atomic_lock);
v = f->f;
f->f = true;
pthread_mutex_unlock(&plat_atomic_lock);
return (v);
}
void
nni_atomic_flag_reset(nni_atomic_flag *f)
{
pthread_mutex_lock(&plat_atomic_lock);
f->f = false;
pthread_mutex_unlock(&plat_atomic_lock);
}
#endif
#endif // NNG_PLATFORM_POSIX
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