65 lines
1.5 KiB
C++
65 lines
1.5 KiB
C++
// (C) Copyright John Maddock 2001.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/config for most recent version.
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// MACRO: BOOST_HAS_PTHREADS
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// TITLE: POSIX Threads
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// DESCRIPTION: The platform supports POSIX style threads.
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#include <pthread.h>
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namespace boost_has_pthreads{
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extern "C" void* thread_proc(void* arg)
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{
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return arg;
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}
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int test()
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{
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pthread_mutex_t mut;
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int result = pthread_mutex_init(&mut, 0);
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if(0 == result)
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{
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//
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// Failure to be able to create and use a mutex
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// is always a failure, even if the pthread
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// library is just a non-functioning stub.
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//
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result |= pthread_mutex_lock(&mut);
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result |= pthread_mutex_unlock(&mut);
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result |= pthread_mutex_trylock(&mut);
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result |= pthread_mutex_unlock(&mut);
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result |= pthread_mutex_destroy(&mut);
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//
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// Try and create a thread, this is allowed
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// to fail, in case we are linking to a pthread
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// "stub" library.
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//
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pthread_t t;
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int r = pthread_create(&t, 0, &thread_proc, 0);
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// result |= r;
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if(r == 0)
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{
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//
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// If we can create a thread, then we must be able to join to it:
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//
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void* arg;
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r = pthread_join(t, &arg);
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result |= r;
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}
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}
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return result;
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}
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}
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