// -*- C++ -*-
//
// $Id$

// The following configuration file is designed to work for Linux
// platforms using GNU C++.

#ifndef ACE_CONFIG_LINUX_H
#define ACE_CONFIG_LINUX_H
#include /**/ "ace/pre.h"

#if !defined (ACE_LINUX)
#define ACE_LINUX
#endif /* ACE_LINUX */

#if !defined (ACE_MT_SAFE)
#  define ACE_MT_SAFE 1
#endif

#if !defined (__ACE_INLINE__)
#  define __ACE_INLINE__
#endif /* ! __ACE_INLINE__ */

#if !defined (ACE_PLATFORM_CONFIG)
#define ACE_PLATFORM_CONFIG config-linux.h
#endif

#define ACE_HAS_BYTESEX_H

// Needed to differentiate between libc 5 and libc 6 (aka glibc).
#include <features.h>

#if (defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 500)
#  define ACE_HAS_PTHREADS_UNIX98_EXT
#endif /* _XOPEN_SOURCE - 0 >= 500 */

# include "ace/config-posix.h"

#if !defined (ACE_LACKS_LINUX_NPTL)

  // Temporary fix because NPTL kernels do have shm_open but there is a problem
  // with shm_open/shm_unlink pairing in ACE which needs to be fixed when I have time.
# if defined (ACE_HAS_SHM_OPEN)
#   undef ACE_HAS_SHM_OPEN
# endif /* ACE_HAS_SHM_OPEN */

# if defined (ACE_USES_FIFO_SEM)
    // Don't use this for Linux NPTL since this has complete
    // POSIX semaphores which are more efficient
#   undef ACE_USES_FIFO_SEM
# endif /* ACE_USES_FIFO_SEM */

# if defined (ACE_HAS_POSIX_SEM)
    // Linux NPTL may not define the right POSIX macro
    // but they have the actual runtime support for this stuff
#   if !defined (ACE_HAS_POSIX_SEM_TIMEOUT) && (((_POSIX_C_SOURCE - 0) >= 200112L) || (_XOPEN_SOURCE >= 600))
#     define ACE_HAS_POSIX_SEM_TIMEOUT
#   endif /* !ACE_HAS_POSIX_SEM_TIMEOUT && (((_POSIX_C_SOURCE - 0) >= 200112L) || (_XOPEN_SOURCE >= 600)) */
# endif /* ACE_HAS_POSIX_SEM */
#endif /* !ACE_LACKS_LINUX_NPTL */

// AIO support pulls in the rt library, which pulls in the pthread
// library.  Disable AIO in single-threaded builds.
#if defined (ACE_HAS_THREADS)
#  define ACE_HAS_CLOCK_GETTIME
#  define ACE_HAS_CLOCK_SETTIME
#else
#  undef ACE_HAS_AIO_CALLS
#endif

// First the machine specific part

#if defined (__powerpc__) || defined (__x86_64__)
# if !defined (ACE_DEFAULT_BASE_ADDR)
#   define ACE_DEFAULT_BASE_ADDR ((char *) 0x40000000)
# endif /* ! ACE_DEFAULT_BASE_ADDR */
#elif defined (__ia64)
# if !defined (ACE_DEFAULT_BASE_ADDR)
// Zero base address should work fine for Linux of IA-64: it just lets
// the kernel to choose the right value.
#   define ACE_DEFAULT_BASE_ADDR ((char *) 0x0000000000000000)
# endif /* ! ACE_DEFAULT_BASE_ADDR */
#endif /* ! __powerpc__  && ! __ia64 */

// Then glibc/libc5 specific parts

#if defined(__GLIBC__) || defined (__INTEL_COMPILER)
# if !defined (__INTEL_COMPILER) && \
     (__GLIBC__  < 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 3)
#   define ACE_HAS_RUSAGE_WHO_ENUM enum __rusage_who
#   define ACE_HAS_RLIMIT_RESOURCE_ENUM enum __rlimit_resource
#   define ACE_LACKS_ISCTYPE
# endif
# define ACE_HAS_SOCKLEN_T
# define ACE_HAS_4_4BSD_SENDMSG_RECVMSG

  // glibc defines both of these, used in OS_String.
# if defined (_GNU_SOURCE)
#   define ACE_HAS_STRNLEN
#   define ACE_HAS_WCSNLEN

  // This is probably not a 100%-sure-fire check... Red Hat Linux 9
  // and Enterprise Linux 3 and up have a new kernel that can send signals
  // across threads. This was not possible prior because there was no real
  // difference between a process and a thread. With this, the
  // ACE_POSIX_SIG_Proactor is the only chance of getting asynch I/O working.
  // There are restrictions, such as all socket operations being silently
  // converted to synchronous by the kernel, that make aio a non-starter
  // for most Linux platforms at this time. But we'll start to crawl...
#   define ACE_POSIX_SIG_PROACTOR
# endif

  // To avoid the strangeness with Linux's ::select (), which modifies
  // its timeout argument, use ::poll () instead.
# define ACE_HAS_POLL

# define ACE_HAS_SIGINFO_T
# define ACE_LACKS_SIGINFO_H
# define ACE_HAS_UCONTEXT_T
# define ACE_HAS_SIGTIMEDWAIT

#else  /* ! __GLIBC__ */
    // Fixes a problem with some non-glibc versions of Linux...
#   define ACE_LACKS_MADVISE
#   define ACE_LACKS_MSG_ACCRIGHTS
#endif /* ! __GLIBC__ */

#define ACE_HAS_LSEEK64
//#define ACE_LACKS_LSEEK64_PROTOTYPE

#define ACE_HAS_P_READ_WRITE
// Use ACE's alternate cuserid() implementation since the use of the
// system cuserid() is discouraged.
#define ACE_HAS_ALT_CUSERID

#if (__GLIBC__  > 2)  || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)
# define ACE_HAS_ISASTREAM_PROTOTYPE
# define ACE_HAS_PTHREAD_SIGMASK_PROTOTYPE
# define ACE_HAS_CPU_SET_T
#endif /* __GLIBC__ > 2 || __GLIBC__ === 2 && __GLIBC_MINOR__ >= 3) */

// Then the compiler specific parts

#if defined (__INTEL_COMPILER)
# include "ace/config-icc-common.h"
#elif defined (__GNUG__)
  // config-g++-common.h undef's ACE_HAS_STRING_CLASS with -frepo, so
  // this must appear before its #include.
# define ACE_HAS_STRING_CLASS
# include "ace/config-g++-common.h"
# ifdef __clang__
#  undef ACE_HAS_GCC_ATOMIC_BUILTINS
# endif
#elif defined (__SUNCC_PRO) || defined (__SUNPRO_CC)
# include "ace/config-suncc-common.h"
#elif defined (__PGI)
// Portable group compiler
# define ACE_HAS_CPLUSPLUS_HEADERS
# define ACE_HAS_STDCPP_STL_INCLUDES
# define ACE_HAS_STANDARD_CPP_LIBRARY 1
# define ACE_USES_STD_NAMESPACE_FOR_STDCPP_LIB 1
# define ACE_LACKS_SWAB
#elif defined (__GNUC__)
/**
 * GNU C compiler.
 *
 * We need to recognize the GNU C compiler since TAO has at least one
 * C source header and file
 * (TAO/orbsvcs/orbsvcs/SSLIOP/params_dup.{h,c}) that may indirectly
 * include this
 */
#else  /* ! __GNUG__ && !__DECCXX && !__INTEL_COMPILER && && !__PGI */
#  ifdef __cplusplus  /* Let it slide for C compilers. */
#    error unsupported compiler in ace/config-linux.h
#  endif  /* __cplusplus */
#endif /* ! __GNUG__*/

// Completely common part :-)

// Platform/compiler has the sigwait(2) prototype
#define ACE_HAS_SIGWAIT

#define ACE_HAS_SIGSUSPEND

#define ACE_HAS_UALARM

#define ACE_HAS_STRSIGNAL

#ifndef ACE_HAS_POSIX_REALTIME_SIGNALS
# define ACE_HAS_POSIX_REALTIME_SIGNALS
#endif /* ACE_HAS_POSIX_REALTIME_SIGNALS */

#define ACE_HAS_XPG4_MULTIBYTE_CHAR
#define ACE_HAS_VFWPRINTF

#define ACE_LACKS_ITOW
#define ACE_LACKS_WCSICMP
#define ACE_LACKS_WCSNICMP
#define ACE_LACKS_ISWASCII

#define ACE_HAS_3_PARAM_WCSTOK

#define ACE_HAS_3_PARAM_READDIR_R

#if !defined (ACE_DEFAULT_BASE_ADDR)
#  define ACE_DEFAULT_BASE_ADDR ((char *) 0x80000000)
#endif /* ! ACE_DEFAULT_BASE_ADDR */

#define ACE_HAS_ALLOCA

// Compiler/platform has <alloca.h>
#define ACE_HAS_ALLOCA_H
#define ACE_HAS_SYS_SYSINFO_H
#define ACE_HAS_LINUX_SYSINFO

// Compiler/platform has the getrusage() system call.
#define ACE_HAS_GETRUSAGE
#define ACE_HAS_GETRUSAGE_PROTOTYPE

#define ACE_HAS_BYTESWAP_H
#define ACE_HAS_BSWAP_16
#define ACE_HAS_BSWAP_32

#if defined (__GNUC__)
#  define ACE_HAS_BSWAP_64
#endif

#define ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES

// Optimize ACE_Handle_Set for select().
#define ACE_HAS_HANDLE_SET_OPTIMIZED_FOR_SELECT

// ONLY define this if you have config'd multicast into a 2.0.34 or
// prior kernel.  It is enabled by default in 2.0.35 kernels.
#if !defined (ACE_HAS_IP_MULTICAST)
# define ACE_HAS_IP_MULTICAST
#endif /* ! ACE_HAS_IP_MULTICAST */

// At least for IPv4, Linux lacks perfect filtering.
#if !defined ACE_LACKS_PERFECT_MULTICAST_FILTERING
# define ACE_LACKS_PERFECT_MULTICAST_FILTERING 1
#endif /* ACE_LACKS_PERFECT_MULTICAST_FILTERING */

#define ACE_HAS_BIG_FD_SET

// Linux defines struct msghdr in /usr/include/socket.h
#define ACE_HAS_MSG

// Linux "improved" the interface to select() so that it modifies
// the struct timeval to reflect the amount of time not slept
// (see NOTES in Linux's select(2) man page).
#define ACE_HAS_NONCONST_SELECT_TIMEVAL

#define ACE_DEFAULT_MAX_SOCKET_BUFSIZ 65535

#define ACE_CDR_IMPLEMENT_WITH_NATIVE_DOUBLE 1

#define ACE_HAS_GETPAGESIZE 1

// Platform defines struct timespec but not timespec_t
#define ACE_LACKS_TIMESPEC_T

// Platform supplies scandir()
#define ACE_HAS_SCANDIR
#if (__GLIBC__ < 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 10)
// Although the scandir man page says otherwise, this setting is correct.
// The setting was fixed in 2.10, so do not use the hack after that.
#define ACE_SCANDIR_CMP_USES_CONST_VOIDPTR
#endif

// A conflict appears when including both <ucontext.h> and
// <sys/procfs.h> with recent glibc headers.
//#define ACE_HAS_PROC_FS

// Platform supports System V IPC (most versions of UNIX, but not Win32)
#define ACE_HAS_SYSV_IPC

// Compiler/platform contains the <sys/syscall.h> file.
#define ACE_HAS_SYS_SYSCALL_H

// Platform/compiler supports global timezone variable.
#define ACE_HAS_TIMEZONE

#define ACE_HAS_TIMEZONE_GETTIMEOFDAY

// Compiler supports the ssize_t typedef.
#define ACE_HAS_SSIZE_T

// Compiler/platform defines the sig_atomic_t typedef.
#define ACE_HAS_SIG_ATOMIC_T

// Compiler/platform defines a union semun for SysV shared memory.
#define ACE_HAS_SEMUN

#define ACE_HAS_POSIX_TIME

#define ACE_HAS_GPERF

#define ACE_HAS_DIRENT

// Starting with FC9 rawhide this file is not available anymore but
// this define is set
#if defined _XOPEN_STREAMS && _XOPEN_STREAMS == -1
# define ACE_LACKS_STROPTS_H
# define ACE_LACKS_STRRECVFD
#endif

#if !defined (ACE_LACKS_STROPTS_H)
# define ACE_HAS_STRBUF_T
#endif

#if defined (__ia64) || defined(__alpha) || defined (__x86_64__) || defined(__powerpc64__)
// On 64 bit platforms, the "long" type is 64-bits.  Override the
// default 32-bit platform-specific format specifiers appropriately.
# define ACE_UINT64_FORMAT_SPECIFIER_ASCII "%lu"
# define ACE_SSIZE_T_FORMAT_SPECIFIER_ASCII "%ld"
# define ACE_SIZE_T_FORMAT_SPECIFIER_ASCII "%lu"
#endif /* __ia64 */

#define ACE_SIZEOF_WCHAR 4

#if defined (__powerpc__) && !defined (ACE_SIZEOF_LONG_DOUBLE)
// 32bit PowerPC Linux uses 128bit long double
# define ACE_SIZEOF_LONG_DOUBLE 16
#endif

#define ACE_LACKS_GETIPNODEBYADDR
#define ACE_LACKS_GETIPNODEBYNAME

// Platform has POSIX terminal interface.
#define ACE_HAS_TERMIOS

// Linux implements sendfile().
#define ACE_HAS_SENDFILE 1

#define ACE_HAS_VOIDPTR_MMAP

#define ACE_HAS_ICMP_SUPPORT 1

#define ACE_HAS_VASPRINTF

// According to man pages Linux uses different (compared to UNIX systems) types
// for setting IP_MULTICAST_TTL and IPV6_MULTICAST_LOOP / IP_MULTICAST_LOOP
// in setsockopt/getsockopt.
// In the current (circa 2012) kernel source however there is an explicit check
// for IPV6_MULTICAST_LOOP being sizeof(int). Anything else is rejected so it must
// not be a passed a bool, irrespective of what the man pages (still) say.
// i.e. #define ACE_HAS_IPV6_MULTICAST_LOOP_AS_BOOL 1 is wrong
#define ACE_HAS_IP_MULTICAST_TTL_AS_INT 1
#define ACE_HAS_IP_MULTICAST_LOOP_AS_INT 1

#if defined (ACE_LACKS_NETWORKING)
# include "ace/config-posix-nonetworking.h"
#else
# define ACE_HAS_NETLINK
# define ACE_HAS_GETIFADDRS
#endif

#if !defined (ACE_GETNAME_RETURNS_RANDOM_SIN_ZERO)
// Detect if getsockname() and getpeername() returns random values in
// the sockaddr_in::sin_zero field by evaluation of the kernel
// version. Since version 2.5.47 this problem is fixed.
#  if !defined (ACE_LACKS_LINUX_VERSION_H)
#    include <linux/version.h>
#  endif /* !ACE_LACKS_LINUX_VERSION_H */
#  if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,47))
#    define ACE_GETNAME_RETURNS_RANDOM_SIN_ZERO 0
#  else
#    define ACE_GETNAME_RETURNS_RANDOM_SIN_ZERO 1
#  endif  /* (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,47)) */
#endif  /* ACE_GETNAME_RETURNS_RANDOM_SIN_ZERO */

#if !defined (ACE_HAS_EVENT_POLL) && !defined (ACE_HAS_DEV_POLL)
# if !defined (ACE_LACKS_LINUX_VERSION_H)
#  include <linux/version.h>
# endif /* !ACE_LACKS_LINUX_VERSION_H */
# if (LINUX_VERSION_CODE > KERNEL_VERSION (2,6,0))
#  define ACE_HAS_EVENT_POLL
# endif
#endif

// This is ghastly, but as long as there are platforms supported
// which define the right POSIX macros but lack actual support
// we have no choice.
// RHEL4 fails (2.6.9) while RHEL5 works (2.6.18)
#if !defined (ACE_LACKS_CONDATTR_SETCLOCK)
# if !defined (ACE_LACKS_LINUX_VERSION_H)
#  include <linux/version.h>
# endif /* !ACE_LACKS_LINUX_VERSION_H */
# if (LINUX_VERSION_CODE < KERNEL_VERSION (2,6,18))
#  define ACE_LACKS_CONDATTR_SETCLOCK
# endif
#endif

#define ACE_HAS_SVR4_DYNAMIC_LINKING
#define ACE_HAS_AUTOMATIC_INIT_FINI
#define ACE_HAS_DLSYM_SEGFAULT_ON_INVALID_HANDLE
#define ACE_HAS_RECURSIVE_MUTEXES
#define ACE_HAS_THREAD_SPECIFIC_STORAGE
#define ACE_HAS_RECURSIVE_THR_EXIT_SEMANTICS
#define ACE_HAS_2_PARAM_ASCTIME_R_AND_CTIME_R
#define ACE_HAS_REENTRANT_FUNCTIONS

// To support UCLIBC
#if defined (__UCLIBC__)

#  define ACE_LACKS_STROPTS_H
#  define ACE_LACKS_GETLOADAVG
#  define ACE_LACKS_NETDB_REENTRANT_FUNCTIONS
#  define ACE_LACKS_PTHREAD_SETSTACK
#  define ACE_LACKS_STRRECVFD
#  define ACE_HAS_CPU_SET_T

#  if defined (ACE_HAS_STRBUF_T)
#    undef ACE_HAS_STRBUF_T
#  endif /* ACE_HAS_STRBUF_T */

#  if defined (ACE_HAS_PTHREAD_SETSTACK)
#    undef ACE_HAS_PTHREAD_SETSTACK
#  endif /* ACE_HAS_PTHREAD_SETSTACK */

#  if defined (ACE_HAS_AIO_CALLS)
#    undef ACE_HAS_AIO_CALLS
#  endif /* ACE_HAS_AIO_CALLS */

#  if defined (ACE_HAS_GETIFADDRS)
#    undef ACE_HAS_GETIFADDRS
#  endif /* ACE_HAS_GETIFADDRS */

#  if defined (ACE_SCANDIR_CMP_USES_VOIDPTR)
#    undef ACE_SCANDIR_CMP_USES_VOIDPTR
#  endif /* ACE_SCANDIR_CMP_USES_VOIDPTR */

#  if defined (ACE_SCANDIR_CMP_USES_CONST_VOIDPTR)
#    undef ACE_SCANDIR_CMP_USES_CONST_VOIDPTR
#  endif /* ACE_SCANDIR_CMP_USES_CONST_VOIDPTR */

#  if defined (ACE_HAS_EXECINFO_H)
#    undef ACE_HAS_EXECINFO_H
#  endif /* ACE_HAS_EXECINFO_H */

#  if defined(__GLIBC__)
#    undef __GLIBC__
#  endif /* __GLIBC__ */

#  if defined(ACE_HAS_SEMUN)
#    undef ACE_HAS_SEMUN
#  endif /* ACE_HAS_SEMUN */

#endif /* __UCLIBC__ */

#include /**/ "ace/post.h"

#endif /* ACE_CONFIG_LINUX_H */