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