Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: // (C) Copyright Ion Gaztanaga 2005-2012. Distributed under the Boost
Chris@16: // Software License, Version 1.0. (See accompanying file
Chris@16: // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/interprocess for documentation.
Chris@16: //
Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: #ifndef BOOST_INTERPROCESS_DETAIL_WORKAROUND_HPP
Chris@16: #define BOOST_INTERPROCESS_DETAIL_WORKAROUND_HPP
Chris@16: 
Chris@16: #include <boost/interprocess/detail/config_begin.hpp>
Chris@16: 
Chris@16: #if defined(_WIN32) || defined(__WIN32__) || defined(WIN32)
Chris@16:    #define BOOST_INTERPROCESS_WINDOWS
Chris@16:    #define BOOST_INTERPROCESS_FORCE_GENERIC_EMULATION
Chris@16:    #define BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME
Chris@16:    //Define this to connect with shared memory created with versions < 1.54
Chris@16:    //#define BOOST_INTERPROCESS_BOOTSTAMP_IS_LASTBOOTUPTIME
Chris@16: #else
Chris@16:    #include <unistd.h>
Chris@16: 
Chris@16:    #if defined(_POSIX_THREAD_PROCESS_SHARED) && ((_POSIX_THREAD_PROCESS_SHARED - 0) > 0)
Chris@16:       //Cygwin defines _POSIX_THREAD_PROCESS_SHARED but does not implement it.
Chris@16:       #if defined(__CYGWIN__)
Chris@16:          #define BOOST_INTERPROCESS_BUGGY_POSIX_PROCESS_SHARED
Chris@16:       //Mac Os X < Lion (10.7) might define _POSIX_THREAD_PROCESS_SHARED but there is no real support.
Chris@16:       #elif defined(__APPLE__)
Chris@16:          #include "TargetConditionals.h"
Chris@16:          //Check we're on Mac OS target
Chris@16:          #if defined(TARGET_OS_MAC)
Chris@16:             #include "AvailabilityMacros.h"
Chris@16:             //If minimum target for this compilation is older than Mac Os Lion, then we are out of luck
Chris@16:             #if MAC_OS_X_VERSION_MIN_REQUIRED < 1070
Chris@16:                #define BOOST_INTERPROCESS_BUGGY_POSIX_PROCESS_SHARED
Chris@16:             #endif
Chris@16:          #endif
Chris@16:       #endif
Chris@16: 
Chris@16:       //If buggy _POSIX_THREAD_PROCESS_SHARED is detected avoid using it
Chris@16:       #if defined(BOOST_INTERPROCESS_BUGGY_POSIX_PROCESS_SHARED)
Chris@16:          #undef BOOST_INTERPROCESS_BUGGY_POSIX_PROCESS_SHARED
Chris@16:       #else
Chris@16:          #define BOOST_INTERPROCESS_POSIX_PROCESS_SHARED
Chris@16:       #endif
Chris@16:    #endif
Chris@16: 
Chris@16:    #if defined(_POSIX_BARRIERS) && ((_POSIX_BARRIERS - 0) > 0)
Chris@16:       #define BOOST_INTERPROCESS_POSIX_BARRIERS
Chris@16:    #endif
Chris@16: 
Chris@16:    #if defined(_POSIX_SEMAPHORES) && ((_POSIX_SEMAPHORES - 0) > 0)
Chris@16:       #define BOOST_INTERPROCESS_POSIX_NAMED_SEMAPHORES
Chris@16:       #if defined(__CYGWIN__)
Chris@16:          #define BOOST_INTERPROCESS_POSIX_SEMAPHORES_NO_UNLINK
Chris@16:       #endif
Chris@16:    //Some platforms have a limited (name length) named semaphore support
Chris@16:    #elif (defined(__FreeBSD__) && (__FreeBSD__ >= 4)) || defined(__APPLE__)
Chris@16:       #define BOOST_INTERPROCESS_POSIX_NAMED_SEMAPHORES
Chris@16:    #endif
Chris@16: 
Chris@16:    #if ((defined _V6_ILP32_OFFBIG)  &&(_V6_ILP32_OFFBIG   - 0 > 0)) ||\
Chris@16:        ((defined _V6_LP64_OFF64)    &&(_V6_LP64_OFF64     - 0 > 0)) ||\
Chris@16:        ((defined _V6_LPBIG_OFFBIG)  &&(_V6_LPBIG_OFFBIG   - 0 > 0)) ||\
Chris@16:        ((defined _XBS5_ILP32_OFFBIG)&&(_XBS5_ILP32_OFFBIG - 0 > 0)) ||\
Chris@16:        ((defined _XBS5_LP64_OFF64)  &&(_XBS5_LP64_OFF64   - 0 > 0)) ||\
Chris@16:        ((defined _XBS5_LPBIG_OFFBIG)&&(_XBS5_LPBIG_OFFBIG - 0 > 0)) ||\
Chris@16:        ((defined _FILE_OFFSET_BITS) &&(_FILE_OFFSET_BITS  - 0 >= 64))||\
Chris@16:        ((defined _FILE_OFFSET_BITS) &&(_FILE_OFFSET_BITS  - 0 >= 64))
Chris@16:       #define BOOST_INTERPROCESS_UNIX_64_BIT_OR_BIGGER_OFF_T
Chris@16:    #endif
Chris@16: 
Chris@16:    //Check for XSI shared memory objects. They are available in nearly all UNIX platforms
Chris@16:    #if !defined(__QNXNTO__)
Chris@16:       #define BOOST_INTERPROCESS_XSI_SHARED_MEMORY_OBJECTS
Chris@16:    #endif
Chris@16: 
Chris@16:    #if defined(_POSIX_SHARED_MEMORY_OBJECTS) && ((_POSIX_SHARED_MEMORY_OBJECTS - 0) > 0)
Chris@16:       #define BOOST_INTERPROCESS_POSIX_SHARED_MEMORY_OBJECTS
Chris@16:    #else
Chris@16:       //VMS and MACOS don't define it but they have shm_open/close interface
Chris@16:       #if defined(__vms)
Chris@16:          #if __CRTL_VER >= 70200000
Chris@16:             #define BOOST_INTERPROCESS_POSIX_SHARED_MEMORY_OBJECTS
Chris@16:          #endif
Chris@16:          //Mac OS has some non-conformant features like names limited to SHM_NAME_MAX
Chris@16:       #elif defined (__APPLE__)
Chris@16:          //#define BOOST_INTERPROCESS_POSIX_SHARED_MEMORY_OBJECTS
Chris@16:          //#define BOOST_INTERPROCESS_POSIX_SHARED_MEMORY_OBJECTS_NO_GROW
Chris@16:       #endif
Chris@16:    #endif
Chris@16: 
Chris@16:    //Now check if we have only XSI shared memory
Chris@16:    #if defined(BOOST_INTERPROCESS_XSI_SHARED_MEMORY_OBJECTS) &&\
Chris@16:       !defined(BOOST_INTERPROCESS_POSIX_SHARED_MEMORY_OBJECTS)
Chris@16:       //#define BOOST_INTERPROCESS_XSI_SHARED_MEMORY_OBJECTS_ONLY
Chris@16:    #endif
Chris@16: 
Chris@16:    #if defined(_POSIX_TIMEOUTS) && ((_POSIX_TIMEOUTS - 0) > 0)
Chris@16:       #define BOOST_INTERPROCESS_POSIX_TIMEOUTS
Chris@16:    #endif
Chris@16: 
Chris@16:    #ifdef BOOST_INTERPROCESS_POSIX_SHARED_MEMORY_OBJECTS
Chris@16:       //Some systems have filesystem-based resources, so the
Chris@16:       //portable "/shmname" format does not work due to permission issues
Chris@16:       //For those systems we need to form a path to a temporary directory:
Chris@16:       //          hp-ux               tru64               vms               freebsd
Chris@16:       #if defined(__hpux) || defined(__osf__) || defined(__vms) || (defined(__FreeBSD__) && (__FreeBSD__ < 7))
Chris@16:          #define BOOST_INTERPROCESS_FILESYSTEM_BASED_POSIX_SHARED_MEMORY
Chris@16:       //Some systems have "jailed" environments where shm usage is restricted at runtime
Chris@16:       //and temporary file file based shm is possible in those executions.
Chris@16:       #elif defined(__FreeBSD__)
Chris@16:          #define BOOST_INTERPROCESS_RUNTIME_FILESYSTEM_BASED_POSIX_SHARED_MEMORY
Chris@16:       #endif
Chris@16:    #endif
Chris@16: 
Chris@16:    #ifdef BOOST_INTERPROCESS_POSIX_NAMED_SEMAPHORES
Chris@16:       #if defined(__osf__) || defined(__vms)
Chris@16:          #define BOOST_INTERPROCESS_FILESYSTEM_BASED_POSIX_SEMAPHORES
Chris@16:       #endif
Chris@16:    #endif
Chris@16: 
Chris@16:    #if defined(_POSIX_VERSION) && defined(_XOPEN_VERSION) && \
Chris@16:        (((_POSIX_VERSION + 0)>= 200112L || (_XOPEN_VERSION + 0)>= 500))
Chris@16:       #define BOOST_INTERPROCESS_POSIX_RECURSIVE_MUTEXES
Chris@16:    #endif
Chris@16: 
Chris@16:    #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
Chris@16:       #define BOOST_INTERPROCESS_BSD_DERIVATIVE
Chris@16:       //Some *BSD systems (OpenBSD & NetBSD) need sys/param.h before sys/sysctl.h, whereas
Chris@16:       //others (FreeBSD & Darwin) need sys/types.h
Chris@16:       #include <sys/types.h>
Chris@16:       #include <sys/param.h>
Chris@16:       #include <sys/sysctl.h>
Chris@16:       #if defined(CTL_KERN) && defined (KERN_BOOTTIME)
Chris@16:          //#define BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME
Chris@16:       #endif
Chris@16:    #endif
Chris@16: #endif   //!defined(BOOST_INTERPROCESS_WINDOWS)
Chris@16: 
Chris@16: #if    !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
Chris@16:    #define BOOST_INTERPROCESS_PERFECT_FORWARDING
Chris@16: #endif
Chris@16: 
Chris@16: //Now declare some Boost.Interprocess features depending on the implementation
Chris@16: #if defined(BOOST_INTERPROCESS_POSIX_NAMED_SEMAPHORES) && !defined(BOOST_INTERPROCESS_POSIX_SEMAPHORES_NO_UNLINK)
Chris@16:    #define BOOST_INTERPROCESS_NAMED_MUTEX_USES_POSIX_SEMAPHORES
Chris@16:    #define BOOST_INTERPROCESS_NAMED_SEMAPHORE_USES_POSIX_SEMAPHORES
Chris@16: #endif
Chris@16: 
Chris@16: // Timeout duration use if BOOST_INTERPROCESS_ENABLE_TIMEOUT_WHEN_LOCKING is set
Chris@16: #ifndef BOOST_INTERPROCESS_TIMEOUT_WHEN_LOCKING_DURATION_MS
Chris@16:    #define BOOST_INTERPROCESS_TIMEOUT_WHEN_LOCKING_DURATION_MS 10000
Chris@16: #endif
Chris@16: 
Chris@16: //Other switches
Chris@16: //BOOST_INTERPROCESS_MSG_QUEUE_USES_CIRC_INDEX
Chris@16: //message queue uses a circular queue as index instead of an array (better performance)
Chris@16: //Boost version < 1.52 uses an array, so undef this if you want to communicate
Chris@16: //with processes compiled with those versions.
Chris@16: #define BOOST_INTERPROCESS_MSG_QUEUE_CIRCULAR_INDEX
Chris@16: 
Chris@16: //Inline attributes
Chris@16: #if defined(_MSC_VER)
Chris@16:    #define BOOST_INTERPROCESS_ALWAYS_INLINE __forceinline
Chris@16: #elif defined (__GNUC__)
Chris@16:    #define BOOST_INTERPROCESS_ALWAYS_INLINE __attribute__((__always_inline__))
Chris@16: #else
Chris@16:    #define BOOST_INTERPROCESS_ALWAYS_INLINE inline
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(_MSC_VER)
Chris@16:    #define BOOST_INTERPROCESS_NEVER_INLINE __declspec(noinline)
Chris@16: #elif defined (__GNUC__)
Chris@16:    #define BOOST_INTERPROCESS_NEVER_INLINE __attribute__((__noinline__))
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(BOOST_NO_CXX11_NOEXCEPT)
Chris@16:    #if defined(BOOST_MSVC)
Chris@16:       #define BOOST_INTERPROCESS_NOEXCEPT throw()
Chris@16:    #else
Chris@16:       #define BOOST_INTERPROCESS_NOEXCEPT
Chris@16:    #endif
Chris@16:    #define BOOST_INTERPROCESS_NOEXCEPT_IF(x)
Chris@16: #else
Chris@16:    #define BOOST_INTERPROCESS_NOEXCEPT    noexcept
Chris@16:    #define BOOST_INTERPROCESS_NOEXCEPT_IF(x) noexcept(x)
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/interprocess/detail/config_end.hpp>
Chris@16: 
Chris@16: #endif   //#ifndef BOOST_INTERPROCESS_DETAIL_WORKAROUND_HPP