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// -*- C++ -*-
//=============================================================================
/**
* @file os_pthread.h
*
* threads
*
* @author Don Hinton <dhinton@dresystems.com>
* @author This code was originally in various places including ace/OS.h.
*/
//=============================================================================
#ifndef ACE_OS_INCLUDE_OS_PTHREAD_H
#define ACE_OS_INCLUDE_OS_PTHREAD_H
#include /**/ "ace/pre.h"
#include /**/ "ace/config-all.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#if defined (ACE_HAS_PRIOCNTL)
// Need to #include thread.h before #defining THR_BOUND, etc.,
// when building without threads on SunOS 5.x.
# if defined (sun)
# include /**/ <thread.h>
# endif /* sun */
// Need to #include these before #defining USYNC_PROCESS on SunOS 5.x.
# include /**/ <sys/rtpriocntl.h>
# include /**/ <sys/tspriocntl.h>
#endif /* ACE_HAS_PRIOCNTL */
#include "ace/os_include/sys/os_types.h"
#include "ace/os_include/os_stdint.h"
// This needs to go here *first* to avoid problems with AIX.
# if defined (ACE_HAS_PTHREADS)
# define ACE_DONT_INCLUDE_ACE_SIGNAL_H
# include "ace/os_include/os_signal.h"
# undef ACE_DONT_INCLUDE_ACE_SIGNAL_H
# endif /* ACE_HAS_PTHREADS */
#if !defined (ACE_LACKS_PTHREAD_H)
# include /**/ <pthread.h>
#endif /* !ACE_LACKS_PTHREAD_H */
#if defined (ACE_HAS_PTHREAD_NP_H)
// FreeBSD declares _np (non-portable) pthread extensions in <pthread_np.h>
# include /**/ <pthread_np.h>
#endif
// @todo: need to reoganize to put includes at the top and the rest of the
// code at the bottom. Also, move the classes out of this file.
#if defined (ACE_HAS_PTHREADS)
# define ACE_SCHED_OTHER SCHED_OTHER
# define ACE_SCHED_FIFO SCHED_FIFO
# define ACE_SCHED_RR SCHED_RR
// Definitions for THREAD- and PROCESS-LEVEL priorities...some
// implementations define these while others don't. In order to
// further complicate matters, we don't redefine the default (*_DEF)
// values if they've already been defined, which allows individual
// programs to have their own ACE-wide "default".
// PROCESS-level values
# if (defined (_POSIX_PRIORITY_SCHEDULING) || defined (ACE_TANDEM_T1248_PTHREADS))
# define ACE_PROC_PRI_FIFO_MIN (sched_get_priority_min(SCHED_FIFO))
# define ACE_PROC_PRI_RR_MIN (sched_get_priority_min(SCHED_RR))
# if defined (HPUX)
// HP-UX's other is the SCHED_HPUX class, which uses historical
// values that have reverse semantics from POSIX (low value is
// more important priority). To use these in pthreads calls,
// the values need to be converted. The other scheduling classes
// don't need this special treatment.
# define ACE_PROC_PRI_OTHER_MIN \
(sched_get_priority_min(SCHED_OTHER))
# else
# define ACE_PROC_PRI_OTHER_MIN (sched_get_priority_min(SCHED_OTHER))
# endif /* HPUX */
# else /* UNICOS is missing a sched_get_priority_min() implementation */
# define ACE_PROC_PRI_FIFO_MIN 0
# define ACE_PROC_PRI_RR_MIN 0
# define ACE_PROC_PRI_OTHER_MIN 0
# endif
# if defined (_POSIX_PRIORITY_SCHEDULING)
# define ACE_PROC_PRI_FIFO_MAX (sched_get_priority_max(SCHED_FIFO))
# define ACE_PROC_PRI_RR_MAX (sched_get_priority_max(SCHED_RR))
# if defined (HPUX)
# define ACE_PROC_PRI_OTHER_MAX \
(sched_get_priority_max(SCHED_OTHER))
# else
# define ACE_PROC_PRI_OTHER_MAX (sched_get_priority_max(SCHED_OTHER))
# endif /* HPUX */
# else
# define ACE_PROC_PRI_FIFO_MAX 59
# define ACE_PROC_PRI_RR_MAX 59
# define ACE_PROC_PRI_OTHER_MAX 59
# endif
# if !defined(ACE_PROC_PRI_FIFO_DEF)
# define ACE_PROC_PRI_FIFO_DEF (ACE_PROC_PRI_FIFO_MIN + (ACE_PROC_PRI_FIFO_MAX - ACE_PROC_PRI_FIFO_MIN)/2)
# endif
# if !defined(ACE_PROC_PRI_RR_DEF)
# define ACE_PROC_PRI_RR_DEF (ACE_PROC_PRI_RR_MIN + (ACE_PROC_PRI_RR_MAX - ACE_PROC_PRI_RR_MIN)/2)
# endif
# if !defined(ACE_PROC_PRI_OTHER_DEF)
# define ACE_PROC_PRI_OTHER_DEF (ACE_PROC_PRI_OTHER_MIN + (ACE_PROC_PRI_OTHER_MAX - ACE_PROC_PRI_OTHER_MIN)/2)
# endif
// THREAD-level values
# if defined(PRI_FIFO_MIN) && defined(PRI_FIFO_MAX) && defined(PRI_RR_MIN) && defined(PRI_RR_MAX) && defined(PRI_OTHER_MIN) && defined(PRI_OTHER_MAX)
# if !defined (ACE_THR_PRI_FIFO_MIN)
# define ACE_THR_PRI_FIFO_MIN (long) PRI_FIFO_MIN
# endif /* !ACE_THR_PRI_FIFO_MIN */
# if !defined (ACE_THR_PRI_FIFO_MAX)
# define ACE_THR_PRI_FIFO_MAX (long) PRI_FIFO_MAX
# endif /* !ACE_THR_PRI_FIFO_MAX */
# if !defined (ACE_THR_PRI_RR_MIN)
# define ACE_THR_PRI_RR_MIN (long) PRI_RR_MIN
# endif /* !ACE_THR_PRI_RR_MIN */
# if !defined (ACE_THR_PRI_RR_MAX)
# define ACE_THR_PRI_RR_MAX (long) PRI_RR_MAX
# endif /* !ACE_THR_PRI_RR_MAX */
# if !defined (ACE_THR_PRI_OTHER_MIN)
# define ACE_THR_PRI_OTHER_MIN (long) PRI_OTHER_MIN
# endif /* !ACE_THR_PRI_OTHER_MIN */
# if !defined (ACE_THR_PRI_OTHER_MAX)
# define ACE_THR_PRI_OTHER_MAX (long) PRI_OTHER_MAX
# endif /* !ACE_THR_PRI_OTHER_MAX */
# elif defined (AIX)
// AIX's priority range is 1 (low) to 127 (high). There aren't
// any preprocessor macros I can find. PRIORITY_MIN is for
// process priorities, as far as I can see, and does not apply
// to thread priority. The 1 to 127 range is from the
// pthread_attr_setschedparam man page (Steve Huston, 18-May-2001).
# if !defined (ACE_THR_PRI_FIFO_MIN)
# define ACE_THR_PRI_FIFO_MIN (long) 1
# endif /* !ACE_THR_PRI_FIFO_MIN */
# if !defined (ACE_THR_PRI_FIFO_MAX)
# define ACE_THR_PRI_FIFO_MAX (long) 127
# endif /* !ACE_THR_PRI_FIFO_MAX */
# if !defined (ACE_THR_PRI_RR_MIN)
# define ACE_THR_PRI_RR_MIN (long) 1
# endif /* !ACE_THR_PRI_RR_MIN */
# if !defined (ACE_THR_PRI_RR_MAX)
# define ACE_THR_PRI_RR_MAX (long) 127
# endif /* !ACE_THR_PRI_RR_MAX */
# if !defined (ACE_THR_PRI_OTHER_MIN)
# define ACE_THR_PRI_OTHER_MIN (long) 1
# endif /* !ACE_THR_PRI_OTHER_MIN */
# if !defined (ACE_THR_PRI_OTHER_MAX)
# define ACE_THR_PRI_OTHER_MAX (long) 127
# endif /* !ACE_THR_PRI_OTHER_MAX */
# elif defined (sun)
# if !defined (ACE_THR_PRI_FIFO_MIN)
# define ACE_THR_PRI_FIFO_MIN (long) 0
# endif /* !ACE_THR_PRI_FIFO_MIN */
# if !defined (ACE_THR_PRI_FIFO_MAX)
# define ACE_THR_PRI_FIFO_MAX (long) 59
# endif /* !ACE_THR_PRI_FIFO_MAX */
# if !defined (ACE_THR_PRI_RR_MIN)
# define ACE_THR_PRI_RR_MIN (long) 0
# endif /* !ACE_THR_PRI_RR_MIN */
# if !defined (ACE_THR_PRI_RR_MAX)
# define ACE_THR_PRI_RR_MAX (long) 59
# endif /* !ACE_THR_PRI_RR_MAX */
# if !defined (ACE_THR_PRI_OTHER_MIN)
# define ACE_THR_PRI_OTHER_MIN (long) 0
# endif /* !ACE_THR_PRI_OTHER_MIN */
# if !defined (ACE_THR_PRI_OTHER_MAX)
# define ACE_THR_PRI_OTHER_MAX (long) 127
# endif /* !ACE_THR_PRI_OTHER_MAX */
# else
# if !defined (ACE_THR_PRI_FIFO_MIN)
# define ACE_THR_PRI_FIFO_MIN (long) ACE_PROC_PRI_FIFO_MIN
# endif /* !ACE_THR_PRI_FIFO_MIN */
# if !defined (ACE_THR_PRI_FIFO_MAX)
# define ACE_THR_PRI_FIFO_MAX (long) ACE_PROC_PRI_FIFO_MAX
# endif /* !ACE_THR_PRI_FIFO_MAX */
# if !defined (ACE_THR_PRI_RR_MIN)
# define ACE_THR_PRI_RR_MIN (long) ACE_PROC_PRI_RR_MIN
# endif /* !ACE_THR_PRI_RR_MIN */
# if !defined (ACE_THR_PRI_RR_MAX)
# define ACE_THR_PRI_RR_MAX (long) ACE_PROC_PRI_RR_MAX
# endif /* !ACE_THR_PRI_RR_MAX */
# if !defined (ACE_THR_PRI_OTHER_MIN)
# define ACE_THR_PRI_OTHER_MIN (long) ACE_PROC_PRI_OTHER_MIN
# endif /* !ACE_THR_PRI_OTHER_MIN */
# if !defined (ACE_THR_PRI_OTHER_MAX)
# define ACE_THR_PRI_OTHER_MAX (long) ACE_PROC_PRI_OTHER_MAX
# endif /* !ACE_THR_PRI_OTHER_MAX */
# endif
# if !defined(ACE_THR_PRI_FIFO_DEF)
# define ACE_THR_PRI_FIFO_DEF ((ACE_THR_PRI_FIFO_MIN + ACE_THR_PRI_FIFO_MAX)/2)
# endif
# if !defined(ACE_THR_PRI_RR_DEF)
# define ACE_THR_PRI_RR_DEF ((ACE_THR_PRI_RR_MIN + ACE_THR_PRI_RR_MAX)/2)
# endif
# if !defined(ACE_THR_PRI_OTHER_DEF)
# define ACE_THR_PRI_OTHER_DEF ((ACE_THR_PRI_OTHER_MIN + ACE_THR_PRI_OTHER_MAX)/2)
# endif
// Typedefs to help compatibility with Windows NT and Pthreads.
typedef pthread_t ACE_hthread_t;
typedef pthread_t ACE_thread_t;
// native TSS key type
typedef pthread_key_t ACE_OS_thread_key_t;
// TSS key type to be used by application
# if defined (ACE_HAS_TSS_EMULATION)
typedef u_int ACE_thread_key_t;
# else /* ! ACE_HAS_TSS_EMULATION */
typedef ACE_OS_thread_key_t ACE_thread_key_t;
# endif /* ! ACE_HAS_TSS_EMULATION */
# if !defined (ACE_LACKS_COND_T)
typedef pthread_mutex_t ACE_mutex_t;
typedef pthread_cond_t ACE_cond_t;
typedef pthread_condattr_t ACE_condattr_t;
typedef pthread_mutexattr_t ACE_mutexattr_t;
# endif /* ! ACE_LACKS_COND_T */
typedef pthread_mutex_t ACE_thread_mutex_t;
# define THR_CANCEL_DISABLE 0x00000100
# define THR_CANCEL_ENABLE 0x00000200
# define THR_CANCEL_DEFERRED 0x00000400
# define THR_CANCEL_ASYNCHRONOUS 0x00000800
# if !defined (PTHREAD_CREATE_JOINABLE)
# if defined (PTHREAD_CREATE_UNDETACHED)
# define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED
# else
# define PTHREAD_CREATE_JOINABLE 0
# endif /* PTHREAD_CREATE_UNDETACHED */
# endif /* PTHREAD_CREATE_JOINABLE */
# if !defined (PTHREAD_CREATE_DETACHED)
# define PTHREAD_CREATE_DETACHED 1
# endif /* PTHREAD_CREATE_DETACHED */
# if !defined (PTHREAD_PROCESS_PRIVATE) && !defined (ACE_HAS_PTHREAD_PROCESS_ENUM)
# if defined (PTHREAD_MUTEXTYPE_FAST)
# define PTHREAD_PROCESS_PRIVATE PTHREAD_MUTEXTYPE_FAST
# else
# define PTHREAD_PROCESS_PRIVATE 0
# endif /* PTHREAD_MUTEXTYPE_FAST */
# endif /* PTHREAD_PROCESS_PRIVATE */
# if !defined (PTHREAD_PROCESS_SHARED) && !defined (ACE_HAS_PTHREAD_PROCESS_ENUM)
# if defined (PTHREAD_MUTEXTYPE_FAST)
# define PTHREAD_PROCESS_SHARED PTHREAD_MUTEXTYPE_FAST
# else
# define PTHREAD_PROCESS_SHARED 1
# endif /* PTHREAD_MUTEXTYPE_FAST */
# endif /* PTHREAD_PROCESS_SHARED */
# if !defined (ACE_HAS_STHREADS)
# if !defined (USYNC_THREAD)
# define USYNC_THREAD PTHREAD_PROCESS_PRIVATE
# endif /* ! USYNC_THREAD */
# if !defined (USYNC_PROCESS)
# define USYNC_PROCESS PTHREAD_PROCESS_SHARED
# endif /* ! USYNC_PROCESS */
# endif /* ACE_HAS_STHREADS */
/* MM-Graz: prevent warnings */
# undef THR_BOUND
# undef THR_NEW_LWP
# undef THR_DETACHED
# undef THR_SUSPENDED
# undef THR_DAEMON
# define THR_BOUND 0x00000001
# define THR_NEW_LWP 0x00000002
# define THR_DAEMON 0x00000010
# define THR_DETACHED 0x00000040
# define THR_SUSPENDED 0x00000080
# define THR_SCHED_FIFO 0x00020000
# define THR_SCHED_RR 0x00040000
# define THR_SCHED_DEFAULT 0x00080000
# define THR_JOINABLE 0x00010000
# define THR_SCOPE_SYSTEM 0x00100000
# define THR_SCOPE_PROCESS 0x00200000
# define THR_INHERIT_SCHED 0x00400000
# define THR_EXPLICIT_SCHED 0x00800000
# define THR_SCHED_IO 0x01000000
# if !defined (ACE_HAS_STHREADS) && !defined (ACE_MQX)
# if !defined (ACE_HAS_POSIX_SEM) && !defined (ACE_USES_FIFO_SEM)
// This needs to be moved out of here.
#include /**/ "ace/ACE_export.h"
/**
* @class ACE_sema_t
*
* @brief This is used to implement semaphores for platforms that support
* POSIX pthreads, but do *not* support POSIX semaphores, i.e.,
* it's a different type than the POSIX <sem_t>.
*/
class ACE_Export ACE_sema_t
{
public:
/// Serialize access to internal state.
ACE_mutex_t lock_;
/// Block until there are no waiters.
ACE_cond_t count_nonzero_;
/// Count of the semaphore.
u_long count_;
/// Number of threads that have called <ACE_OS::sema_wait>.
u_long waiters_;
};
# endif /* !ACE_HAS_POSIX_SEM */
# if defined (ACE_LACKS_PTHREAD_YIELD) && defined (ACE_HAS_THR_YIELD)
// If we are on Solaris we can just reuse the existing
// implementations of these synchronization types.
# if !defined (ACE_LACKS_RWLOCK_T) && !defined (ACE_HAS_PTHREADS_UNIX98_EXT)
# include /**/ <synch.h>
typedef rwlock_t ACE_rwlock_t;
# endif /* !ACE_LACKS_RWLOCK_T */
# include /**/ <thread.h>
# endif /* (ACE_LACKS_PTHREAD_YIELD) && defined (ACE_HAS_THR_YIELD) */
# else
# if !defined (ACE_HAS_POSIX_SEM)
typedef sema_t ACE_sema_t;
# endif /* !ACE_HAS_POSIX_SEM */
# endif /* !ACE_HAS_STHREADS */
# if defined (ACE_HAS_PTHREADS_UNIX98_EXT) && !defined (ACE_LACKS_RWLOCK_T)
typedef pthread_rwlock_t ACE_rwlock_t;
# endif /* ACE_HAS_PTHREADS_UNIX98_EXT */
# if defined (__GLIBC__) && ((__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2))
// glibc 2.2.x or better has pthread_mutex_timedlock()
# ifndef ACE_HAS_MUTEX_TIMEOUTS
# define ACE_HAS_MUTEX_TIMEOUTS
# endif /* ACE_HAS_MUTEX_TIMEOUTS */
// Use new pthread_attr_setstack if XPG6 support is enabled.
# if defined (_XOPEN_SOURCE) && (_XOPEN_SOURCE - 0) < 600
# define ACE_LACKS_PTHREAD_ATTR_SETSTACK
# endif /* (_XOPEN_SOURCE - 0) < 600 */
# if !defined (_XOPEN_SOURCE) \
|| (defined (_XOPEN_SOURCE) && (_XOPEN_SOURCE - 0) < 600)
// pthread_mutex_timedlock() prototype is not visible if _XOPEN_SOURCE
// is not >= 600 (i.e. for XPG6).
extern "C" int pthread_mutex_timedlock (pthread_mutex_t *mutex,
const struct timespec * abstime);
# endif /* _XOPEN_SOURCE && _XOPEN_SOURCE < 600 */
# endif /* ACE_LINUX && ((__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)) */
#elif defined (ACE_HAS_STHREADS)
# if !defined (ACE_THR_PRI_FIFO_MIN)
# define ACE_THR_PRI_FIFO_MIN (long) 0
# endif /* !ACE_THR_PRI_FIFO_MIN */
# if !defined (ACE_THR_PRI_FIFO_MAX)
# define ACE_THR_PRI_FIFO_MAX (long) 59
# endif /* !ACE_THR_PRI_FIFO_MAX */
# if !defined (ACE_THR_PRI_RR_MIN)
# define ACE_THR_PRI_RR_MIN (long) 0
# endif /* !ACE_THR_PRI_RR_MIN */
# if !defined (ACE_THR_PRI_RR_MAX)
# define ACE_THR_PRI_RR_MAX (long) 59
# endif /* !ACE_THR_PRI_RR_MAX */
# if !defined (ACE_THR_PRI_OTHER_MIN)
# define ACE_THR_PRI_OTHER_MIN (long) 0
# endif /* !ACE_THR_PRI_OTHER_MIN */
# if !defined (ACE_THR_PRI_OTHER_MAX)
# define ACE_THR_PRI_OTHER_MAX (long) 127
# endif /* !ACE_THR_PRI_OTHER_MAX */
#endif /* ACE_HAS_PTHREADS */
#include /**/ "ace/post.h"
#endif /* ACE_OS_INCLUDE_OS_PTHREAD_H */
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