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Disabled the linux-specific versions since using kernel headers is problematic. #define BOOST_USE_ASM_ATOMIC_H to get them back.

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[SVN r12995]
This commit is contained in:
Peter Dimov
2002-03-01 16:17:08 +00:00
parent 3e0233a26c
commit 8e604a9da9
4 changed files with 29 additions and 12 deletions
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11
include/boost/detail/atomic_count.hpp
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@ -72,6 +72,8 @@
// are called driven by smart_ptr interface...
//
// Note: atomic_count_linux.hpp has been disabled by default; see the
// comments inside for more info.
#include <boost/config.hpp>
@ -90,17 +92,12 @@ typedef long atomic_count;
}
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
# include <boost/detail/atomic_count_win32.hpp>
#elif defined(linux) || defined(__linux) || defined(__linux__)
//#elif defined(linux) || defined(__linux) || defined(__linux__)
#elif defined(BOOST_USE_ASM_ATOMIC_H)
# include <boost/detail/atomic_count_linux.hpp>
#elif defined(BOOST_HAS_PTHREADS)
# include <boost/detail/atomic_count_pthreads.hpp>
#else
// #warning Unrecognized platform, detail::atomic_count will not be thread safe

8
include/boost/detail/atomic_count_linux.hpp
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@ -13,7 +13,13 @@
//
//
// On Linux, atomic.h is usually located in /usr/include/asm
// This implementation uses <asm/atomic.h>. This is a kernel header;
// using kernel headers in a user program may cause a number of problems,
// and not all flavors of Linux provide the atomic instructions.
//
// This file is only provided because the performance of this implementation
// is significantly higher than the pthreads version. Use at your own risk
// (by defining BOOST_USE_ASM_ATOMIC_H.)
//
#include <asm/atomic.h>

6
include/boost/detail/lightweight_mutex.hpp
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@ -31,6 +31,9 @@
// * Never keep a lightweight_mutex locked for long periods.
//
// Note: lwm_linux.hpp has been disabled by default; see the comments
// inside for more info.
#include <boost/config.hpp>
@ -38,7 +41,8 @@
# include <boost/detail/lwm_nop.hpp>
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
# include <boost/detail/lwm_win32.hpp>
#elif defined(linux) || defined(__linux) || defined(__linux__)
//#elif defined(linux) || defined(__linux) || defined(__linux__)
#elif defined(BOOST_USE_ASM_ATOMIC_H)
# include <boost/detail/lwm_linux.hpp>
#elif defined(__sgi)
# include <boost/detail/lwm_irix.hpp>

10
include/boost/detail/lwm_linux.hpp
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@ -16,6 +16,16 @@
// warranty, and with no claim as to its suitability for any purpose.
//
//
// This implementation uses <asm/atomic.h>. This is a kernel header;
// using kernel headers in a user program may cause a number of problems,
// and not all flavors of Linux provide the atomic instructions.
//
// This file is only provided because the performance of this implementation
// is about 3.5 times higher than the pthreads version. Use at your own risk
// (by defining BOOST_USE_ASM_ATOMIC_H.)
//
#include <asm/atomic.h>
#include <sched.h>