pthread.h
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上传日期:2022-04-24
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- /* This is an implementation of the threads API of POSIX 1003.1-2001.
- *
- * --------------------------------------------------------------------------
- *
- * Pthreads-win32 - POSIX Threads Library for Win32
- * Copyright(C) 1998 John E. Bossom
- * Copyright(C) 1999,2005 Pthreads-win32 contributors
- *
- * Contact Email: rpj@callisto.canberra.edu.au
- *
- * The current list of contributors is contained
- * in the file CONTRIBUTORS included with the source
- * code distribution. The list can also be seen at the
- * following World Wide Web location:
- * http://sources.redhat.com/pthreads-win32/contributors.html
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library in the file COPYING.LIB;
- * if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
- #if !defined( PTHREAD_H )
- #define PTHREAD_H
- /*
- * See the README file for an explanation of the pthreads-win32 version
- * numbering scheme and how the DLL is named etc.
- */
- #define PTW32_VERSION 2,8,0,0
- #define PTW32_VERSION_STRING "2, 8, 0, 0 "
- /* There are three implementations of cancel cleanup.
- * Note that pthread.h is included in both application
- * compilation units and also internally for the library.
- * The code here and within the library aims to work
- * for all reasonable combinations of environments.
- *
- * The three implementations are:
- *
- * WIN32 SEH
- * C
- * C++
- *
- * Please note that exiting a push/pop block via
- * "return", "exit", "break", or "continue" will
- * lead to different behaviour amongst applications
- * depending upon whether the library was built
- * using SEH, C++, or C. For example, a library built
- * with SEH will call the cleanup routine, while both
- * C++ and C built versions will not.
- */
- /*
- * Define defaults for cleanup code.
- * Note: Unless the build explicitly defines one of the following, then
- * we default to standard C style cleanup. This style uses setjmp/longjmp
- * in the cancelation and thread exit implementations and therefore won't
- * do stack unwinding if linked to applications that have it (e.g.
- * C++ apps). This is currently consistent with most/all commercial Unix
- * POSIX threads implementations.
- */
- #if !defined( __CLEANUP_SEH ) && !defined( __CLEANUP_CXX ) && !defined( __CLEANUP_C )
- # define __CLEANUP_C
- #endif
- #if defined( __CLEANUP_SEH ) && ( !defined( _MSC_VER ) && !defined(PTW32_RC_MSC))
- #error ERROR [__FILE__, line __LINE__]: SEH is not supported for this compiler.
- #endif
- /*
- * Stop here if we are being included by the resource compiler.
- */
- #ifndef RC_INVOKED
- #undef PTW32_LEVEL
- #if defined(_POSIX_SOURCE)
- #define PTW32_LEVEL 0
- /* Early POSIX */
- #endif
- #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309
- #undef PTW32_LEVEL
- #define PTW32_LEVEL 1
- /* Include 1b, 1c and 1d */
- #endif
- #if defined(INCLUDE_NP)
- #undef PTW32_LEVEL
- #define PTW32_LEVEL 2
- /* Include Non-Portable extensions */
- #endif
- #define PTW32_LEVEL_MAX 3
- #if !defined(PTW32_LEVEL)
- #define PTW32_LEVEL PTW32_LEVEL_MAX
- /* Include everything */
- #endif
- #ifdef _UWIN
- # define HAVE_STRUCT_TIMESPEC 1
- # define HAVE_SIGNAL_H 1
- # undef HAVE_CONFIG_H
- # pragma comment(lib, "pthread")
- #endif
- /*
- * -------------------------------------------------------------
- *
- *
- * Module: pthread.h
- *
- * Purpose:
- * Provides an implementation of PThreads based upon the
- * standard:
- *
- * POSIX 1003.1-2001
- * and
- * The Single Unix Specification version 3
- *
- * (these two are equivalent)
- *
- * in order to enhance code portability between Windows,
- * various commercial Unix implementations, and Linux.
- *
- * See the ANNOUNCE file for a full list of conforming
- * routines and defined constants, and a list of missing
- * routines and constants not defined in this implementation.
- *
- * Authors:
- * There have been many contributors to this library.
- * The initial implementation was contributed by
- * John Bossom, and several others have provided major
- * sections or revisions of parts of the implementation.
- * Often significant effort has been contributed to
- * find and fix important bugs and other problems to
- * improve the reliability of the library, which sometimes
- * is not reflected in the amount of code which changed as
- * result.
- * As much as possible, the contributors are acknowledged
- * in the ChangeLog file in the source code distribution
- * where their changes are noted in detail.
- *
- * Contributors are listed in the CONTRIBUTORS file.
- *
- * As usual, all bouquets go to the contributors, and all
- * brickbats go to the project maintainer.
- *
- * Maintainer:
- * The code base for this project is coordinated and
- * eventually pre-tested, packaged, and made available by
- *
- * Ross Johnson <rpj@callisto.canberra.edu.au>
- *
- * QA Testers:
- * Ultimately, the library is tested in the real world by
- * a host of competent and demanding scientists and
- * engineers who report bugs and/or provide solutions
- * which are then fixed or incorporated into subsequent
- * versions of the library. Each time a bug is fixed, a
- * test case is written to prove the fix and ensure
- * that later changes to the code don't reintroduce the
- * same error. The number of test cases is slowly growing
- * and therefore so is the code reliability.
- *
- * Compliance:
- * See the file ANNOUNCE for the list of implemented
- * and not-implemented routines and defined options.
- * Of course, these are all defined is this file as well.
- *
- * Web site:
- * The source code and other information about this library
- * are available from
- *
- * http://sources.redhat.com/pthreads-win32/
- *
- * -------------------------------------------------------------
- */
- /* Try to avoid including windows.h */
- #if defined(__MINGW32__) && defined(__cplusplus)
- #define PTW32_INCLUDE_WINDOWS_H
- #endif
- #ifdef PTW32_INCLUDE_WINDOWS_H
- #include <windows.h>
- #endif
- #if defined(_MSC_VER) && _MSC_VER < 1300 || defined(__DMC__)
- /*
- * VC++6.0 or early compiler's header has no DWORD_PTR type.
- */
- typedef unsigned long DWORD_PTR;
- #endif
- /*
- * -----------------
- * autoconf switches
- * -----------------
- */
- #if HAVE_CONFIG_H
- #include "config.h"
- #endif /* HAVE_CONFIG_H */
- #ifndef NEED_FTIME
- #include <time.h>
- #else /* NEED_FTIME */
- /* use native WIN32 time API */
- #endif /* NEED_FTIME */
- #if HAVE_SIGNAL_H
- #include <signal.h>
- #endif /* HAVE_SIGNAL_H */
- #include <setjmp.h>
- #include <limits.h>
- /*
- * Boolean values to make us independent of system includes.
- */
- enum {
- PTW32_FALSE = 0,
- PTW32_TRUE = (! PTW32_FALSE)
- };
- /*
- * This is a duplicate of what is in the autoconf config.h,
- * which is only used when building the pthread-win32 libraries.
- */
- #ifndef PTW32_CONFIG_H
- # if defined(WINCE)
- # define NEED_ERRNO
- # define NEED_SEM
- # endif
- # if defined(_UWIN) || defined(__MINGW32__)
- # define HAVE_MODE_T
- # endif
- #endif
- /*
- *
- */
- #if PTW32_LEVEL >= PTW32_LEVEL_MAX
- #ifdef NEED_ERRNO
- #include "need_errno.h"
- #else
- #include <errno.h>
- #endif
- #endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
- /*
- * Several systems don't define some error numbers.
- */
- #ifndef ENOTSUP
- # define ENOTSUP 48 /* This is the value in Solaris. */
- #endif
- #ifndef ETIMEDOUT
- # define ETIMEDOUT 10060 /* This is the value in winsock.h. */
- #endif
- #ifndef ENOSYS
- # define ENOSYS 140 /* Semi-arbitrary value */
- #endif
- #ifndef EDEADLK
- # ifdef EDEADLOCK
- # define EDEADLK EDEADLOCK
- # else
- # define EDEADLK 36 /* This is the value in MSVC. */
- # endif
- #endif
- #include <sched.h>
- /*
- * To avoid including windows.h we define only those things that we
- * actually need from it.
- */
- #ifndef PTW32_INCLUDE_WINDOWS_H
- #ifndef HANDLE
- # define PTW32__HANDLE_DEF
- # define HANDLE void *
- #endif
- #ifndef DWORD
- # define PTW32__DWORD_DEF
- # define DWORD unsigned long
- #endif
- #endif
- #ifndef HAVE_STRUCT_TIMESPEC
- #define HAVE_STRUCT_TIMESPEC 1
- struct timespec {
- long tv_sec;
- long tv_nsec;
- };
- #endif /* HAVE_STRUCT_TIMESPEC */
- #ifndef SIG_BLOCK
- #define SIG_BLOCK 0
- #endif /* SIG_BLOCK */
- #ifndef SIG_UNBLOCK
- #define SIG_UNBLOCK 1
- #endif /* SIG_UNBLOCK */
- #ifndef SIG_SETMASK
- #define SIG_SETMASK 2
- #endif /* SIG_SETMASK */
- #ifdef __cplusplus
- extern "C"
- {
- #endif /* __cplusplus */
- /*
- * -------------------------------------------------------------
- *
- * POSIX 1003.1-2001 Options
- * =========================
- *
- * Options are normally set in <unistd.h>, which is not provided
- * with pthreads-win32.
- *
- * For conformance with the Single Unix Specification (version 3), all of the
- * options below are defined, and have a value of either -1 (not supported)
- * or 200112L (supported).
- *
- * These options can neither be left undefined nor have a value of 0, because
- * either indicates that sysconf(), which is not implemented, may be used at
- * runtime to check the status of the option.
- *
- * _POSIX_THREADS (== 200112L)
- * If == 200112L, you can use threads
- *
- * _POSIX_THREAD_ATTR_STACKSIZE (== 200112L)
- * If == 200112L, you can control the size of a thread's
- * stack
- * pthread_attr_getstacksize
- * pthread_attr_setstacksize
- *
- * _POSIX_THREAD_ATTR_STACKADDR (== -1)
- * If == 200112L, you can allocate and control a thread's
- * stack. If not supported, the following functions
- * will return ENOSYS, indicating they are not
- * supported:
- * pthread_attr_getstackaddr
- * pthread_attr_setstackaddr
- *
- * _POSIX_THREAD_PRIORITY_SCHEDULING (== -1)
- * If == 200112L, you can use realtime scheduling.
- * This option indicates that the behaviour of some
- * implemented functions conforms to the additional TPS
- * requirements in the standard. E.g. rwlocks favour
- * writers over readers when threads have equal priority.
- *
- * _POSIX_THREAD_PRIO_INHERIT (== -1)
- * If == 200112L, you can create priority inheritance
- * mutexes.
- * pthread_mutexattr_getprotocol +
- * pthread_mutexattr_setprotocol +
- *
- * _POSIX_THREAD_PRIO_PROTECT (== -1)
- * If == 200112L, you can create priority ceiling mutexes
- * Indicates the availability of:
- * pthread_mutex_getprioceiling
- * pthread_mutex_setprioceiling
- * pthread_mutexattr_getprioceiling
- * pthread_mutexattr_getprotocol +
- * pthread_mutexattr_setprioceiling
- * pthread_mutexattr_setprotocol +
- *
- * _POSIX_THREAD_PROCESS_SHARED (== -1)
- * If set, you can create mutexes and condition
- * variables that can be shared with another
- * process.If set, indicates the availability
- * of:
- * pthread_mutexattr_getpshared
- * pthread_mutexattr_setpshared
- * pthread_condattr_getpshared
- * pthread_condattr_setpshared
- *
- * _POSIX_THREAD_SAFE_FUNCTIONS (== 200112L)
- * If == 200112L you can use the special *_r library
- * functions that provide thread-safe behaviour
- *
- * _POSIX_READER_WRITER_LOCKS (== 200112L)
- * If == 200112L, you can use read/write locks
- *
- * _POSIX_SPIN_LOCKS (== 200112L)
- * If == 200112L, you can use spin locks
- *
- * _POSIX_BARRIERS (== 200112L)
- * If == 200112L, you can use barriers
- *
- * + These functions provide both 'inherit' and/or
- * 'protect' protocol, based upon these macro
- * settings.
- *
- * -------------------------------------------------------------
- */
- /*
- * POSIX Options
- */
- #undef _POSIX_THREADS
- #define _POSIX_THREADS 200112L
- #undef _POSIX_READER_WRITER_LOCKS
- #define _POSIX_READER_WRITER_LOCKS 200112L
- #undef _POSIX_SPIN_LOCKS
- #define _POSIX_SPIN_LOCKS 200112L
- #undef _POSIX_BARRIERS
- #define _POSIX_BARRIERS 200112L
- #undef _POSIX_THREAD_SAFE_FUNCTIONS
- #define _POSIX_THREAD_SAFE_FUNCTIONS 200112L
- #undef _POSIX_THREAD_ATTR_STACKSIZE
- #define _POSIX_THREAD_ATTR_STACKSIZE 200112L
- /*
- * The following options are not supported
- */
- #undef _POSIX_THREAD_ATTR_STACKADDR
- #define _POSIX_THREAD_ATTR_STACKADDR -1
- #undef _POSIX_THREAD_PRIO_INHERIT
- #define _POSIX_THREAD_PRIO_INHERIT -1
- #undef _POSIX_THREAD_PRIO_PROTECT
- #define _POSIX_THREAD_PRIO_PROTECT -1
- /* TPS is not fully supported. */
- #undef _POSIX_THREAD_PRIORITY_SCHEDULING
- #define _POSIX_THREAD_PRIORITY_SCHEDULING -1
- #undef _POSIX_THREAD_PROCESS_SHARED
- #define _POSIX_THREAD_PROCESS_SHARED -1
- /*
- * POSIX 1003.1-2001 Limits
- * ===========================
- *
- * These limits are normally set in <limits.h>, which is not provided with
- * pthreads-win32.
- *
- * PTHREAD_DESTRUCTOR_ITERATIONS
- * Maximum number of attempts to destroy
- * a thread's thread-specific data on
- * termination (must be at least 4)
- *
- * PTHREAD_KEYS_MAX
- * Maximum number of thread-specific data keys
- * available per process (must be at least 128)
- *
- * PTHREAD_STACK_MIN
- * Minimum supported stack size for a thread
- *
- * PTHREAD_THREADS_MAX
- * Maximum number of threads supported per
- * process (must be at least 64).
- *
- * SEM_NSEMS_MAX
- * The maximum number of semaphores a process can have.
- * (must be at least 256)
- *
- * SEM_VALUE_MAX
- * The maximum value a semaphore can have.
- * (must be at least 32767)
- *
- */
- #undef _POSIX_THREAD_DESTRUCTOR_ITERATIONS
- #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
- #undef PTHREAD_DESTRUCTOR_ITERATIONS
- #define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
- #undef _POSIX_THREAD_KEYS_MAX
- #define _POSIX_THREAD_KEYS_MAX 128
- #undef PTHREAD_KEYS_MAX
- #define PTHREAD_KEYS_MAX _POSIX_THREAD_KEYS_MAX
- #undef PTHREAD_STACK_MIN
- #define PTHREAD_STACK_MIN 0
- #undef _POSIX_THREAD_THREADS_MAX
- #define _POSIX_THREAD_THREADS_MAX 64
- /* Arbitrary value */
- #undef PTHREAD_THREADS_MAX
- #define PTHREAD_THREADS_MAX 2019
- #undef _POSIX_SEM_NSEMS_MAX
- #define _POSIX_SEM_NSEMS_MAX 256
- /* Arbitrary value */
- #undef SEM_NSEMS_MAX
- #define SEM_NSEMS_MAX 1024
- #undef _POSIX_SEM_VALUE_MAX
- #define _POSIX_SEM_VALUE_MAX 32767
- #undef SEM_VALUE_MAX
- #define SEM_VALUE_MAX INT_MAX
- #if __GNUC__ && ! defined (__declspec)
- # error Please upgrade your GNU compiler to one that supports __declspec.
- #endif
- /*
- * When building the DLL code, you should define PTW32_BUILD so that
- * the variables/functions are exported correctly. When using the DLL,
- * do NOT define PTW32_BUILD, and then the variables/functions will
- * be imported correctly.
- */
- #ifndef PTW32_STATIC_LIB
- # ifdef PTW32_BUILD
- # define PTW32_DLLPORT __declspec (dllexport)
- # else
- # define PTW32_DLLPORT __declspec (dllimport)
- # endif
- #else
- # define PTW32_DLLPORT
- #endif
- /*
- * The Open Watcom C/C++ compiler uses a non-standard calling convention
- * that passes function args in registers unless __cdecl is explicitly specified
- * in exposed function prototypes.
- *
- * We force all calls to cdecl even though this could slow Watcom code down
- * slightly. If you know that the Watcom compiler will be used to build both
- * the DLL and application, then you can probably define this as a null string.
- * Remember that pthread.h (this file) is used for both the DLL and application builds.
- */
- #define PTW32_CDECL __cdecl
- #if defined(_UWIN) && PTW32_LEVEL >= PTW32_LEVEL_MAX
- # include <sys/types.h>
- #else
- /*
- * Generic handle type - intended to extend uniqueness beyond
- * that available with a simple pointer. It should scale for either
- * IA-32 or IA-64.
- */
- typedef struct {
- void * p; /* Pointer to actual object */
- unsigned int x; /* Extra information - reuse count etc */
- } ptw32_handle_t;
- typedef ptw32_handle_t pthread_t;
- typedef struct pthread_attr_t_ * pthread_attr_t;
- typedef struct pthread_once_t_ pthread_once_t;
- typedef struct pthread_key_t_ * pthread_key_t;
- typedef struct pthread_mutex_t_ * pthread_mutex_t;
- typedef struct pthread_mutexattr_t_ * pthread_mutexattr_t;
- typedef struct pthread_cond_t_ * pthread_cond_t;
- typedef struct pthread_condattr_t_ * pthread_condattr_t;
- #endif
- typedef struct pthread_rwlock_t_ * pthread_rwlock_t;
- typedef struct pthread_rwlockattr_t_ * pthread_rwlockattr_t;
- typedef struct pthread_spinlock_t_ * pthread_spinlock_t;
- typedef struct pthread_barrier_t_ * pthread_barrier_t;
- typedef struct pthread_barrierattr_t_ * pthread_barrierattr_t;
- /*
- * ====================
- * ====================
- * POSIX Threads
- * ====================
- * ====================
- */
- enum {
- /*
- * pthread_attr_{get,set}detachstate
- */
- PTHREAD_CREATE_JOINABLE = 0, /* Default */
- PTHREAD_CREATE_DETACHED = 1,
- /*
- * pthread_attr_{get,set}inheritsched
- */
- PTHREAD_INHERIT_SCHED = 0,
- PTHREAD_EXPLICIT_SCHED = 1, /* Default */
- /*
- * pthread_{get,set}scope
- */
- PTHREAD_SCOPE_PROCESS = 0,
- PTHREAD_SCOPE_SYSTEM = 1, /* Default */
- /*
- * pthread_setcancelstate paramters
- */
- PTHREAD_CANCEL_ENABLE = 0, /* Default */
- PTHREAD_CANCEL_DISABLE = 1,
- /*
- * pthread_setcanceltype parameters
- */
- PTHREAD_CANCEL_ASYNCHRONOUS = 0,
- PTHREAD_CANCEL_DEFERRED = 1, /* Default */
- /*
- * pthread_mutexattr_{get,set}pshared
- * pthread_condattr_{get,set}pshared
- */
- PTHREAD_PROCESS_PRIVATE = 0,
- PTHREAD_PROCESS_SHARED = 1,
- /*
- * pthread_barrier_wait
- */
- PTHREAD_BARRIER_SERIAL_THREAD = -1
- };
- /*
- * ====================
- * ====================
- * Cancelation
- * ====================
- * ====================
- */
- #define PTHREAD_CANCELED ((void *) -1)
- /*
- * ====================
- * ====================
- * Once Key
- * ====================
- * ====================
- */
- #define PTHREAD_ONCE_INIT { PTW32_FALSE, 0, 0, 0}
- struct pthread_once_t_
- {
- int done; /* indicates if user function has been executed */
- void * lock;
- int reserved1;
- int reserved2;
- };
- /*
- * ====================
- * ====================
- * Object initialisers
- * ====================
- * ====================
- */
- #define PTHREAD_MUTEX_INITIALIZER ((pthread_mutex_t) -1)
- #define PTHREAD_RECURSIVE_MUTEX_INITIALIZER ((pthread_mutex_t) -2)
- #define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER ((pthread_mutex_t) -3)
- /*
- * Compatibility with LinuxThreads
- */
- #define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP PTHREAD_RECURSIVE_MUTEX_INITIALIZER
- #define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP PTHREAD_ERRORCHECK_MUTEX_INITIALIZER
- #define PTHREAD_COND_INITIALIZER ((pthread_cond_t) -1)
- #define PTHREAD_RWLOCK_INITIALIZER ((pthread_rwlock_t) -1)
- #define PTHREAD_SPINLOCK_INITIALIZER ((pthread_spinlock_t) -1)
- /*
- * Mutex types.
- */
- enum
- {
- /* Compatibility with LinuxThreads */
- PTHREAD_MUTEX_FAST_NP,
- PTHREAD_MUTEX_RECURSIVE_NP,
- PTHREAD_MUTEX_ERRORCHECK_NP,
- PTHREAD_MUTEX_TIMED_NP = PTHREAD_MUTEX_FAST_NP,
- PTHREAD_MUTEX_ADAPTIVE_NP = PTHREAD_MUTEX_FAST_NP,
- /* For compatibility with POSIX */
- PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_FAST_NP,
- PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP,
- PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP,
- PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
- };
- typedef struct ptw32_cleanup_t ptw32_cleanup_t;
- #if defined(_MSC_VER)
- /* Disable MSVC 'anachronism used' warning */
- #pragma warning( disable : 4229 )
- #endif
- typedef void (* PTW32_CDECL ptw32_cleanup_callback_t)(void *);
- #if defined(_MSC_VER)
- #pragma warning( default : 4229 )
- #endif
- struct ptw32_cleanup_t
- {
- ptw32_cleanup_callback_t routine;
- void *arg;
- struct ptw32_cleanup_t *prev;
- };
- #ifdef __CLEANUP_SEH
- /*
- * WIN32 SEH version of cancel cleanup.
- */
- #define pthread_cleanup_push( _rout, _arg )
- {
- ptw32_cleanup_t _cleanup;
-
- _cleanup.routine = (ptw32_cleanup_callback_t)(_rout);
- _cleanup.arg = (_arg);
- __try
- {
- #define pthread_cleanup_pop( _execute )
- }
- __finally
- {
- if( _execute || AbnormalTermination())
- {
- (*(_cleanup.routine))( _cleanup.arg );
- }
- }
- }
- #else /* __CLEANUP_SEH */
- #ifdef __CLEANUP_C
- /*
- * C implementation of PThreads cancel cleanup
- */
- #define pthread_cleanup_push( _rout, _arg )
- {
- ptw32_cleanup_t _cleanup;
-
- ptw32_push_cleanup( &_cleanup, (ptw32_cleanup_callback_t) (_rout), (_arg) );
- #define pthread_cleanup_pop( _execute )
- (void) ptw32_pop_cleanup( _execute );
- }
- #else /* __CLEANUP_C */
- #ifdef __CLEANUP_CXX
- /*
- * C++ version of cancel cleanup.
- * - John E. Bossom.
- */
- class PThreadCleanup {
- /*
- * PThreadCleanup
- *
- * Purpose
- * This class is a C++ helper class that is
- * used to implement pthread_cleanup_push/
- * pthread_cleanup_pop.
- * The destructor of this class automatically
- * pops the pushed cleanup routine regardless
- * of how the code exits the scope
- * (i.e. such as by an exception)
- */
- ptw32_cleanup_callback_t cleanUpRout;
- void * obj;
- int executeIt;
- public:
- PThreadCleanup() :
- cleanUpRout( 0 ),
- obj( 0 ),
- executeIt( 0 )
- /*
- * No cleanup performed
- */
- {
- }
- PThreadCleanup(
- ptw32_cleanup_callback_t routine,
- void * arg ) :
- cleanUpRout( routine ),
- obj( arg ),
- executeIt( 1 )
- /*
- * Registers a cleanup routine for 'arg'
- */
- {
- }
- ~PThreadCleanup()
- {
- if ( executeIt && ((void *) cleanUpRout != (void *) 0) )
- {
- (void) (*cleanUpRout)( obj );
- }
- }
- void execute( int exec )
- {
- executeIt = exec;
- }
- };
- /*
- * C++ implementation of PThreads cancel cleanup;
- * This implementation takes advantage of a helper
- * class who's destructor automatically calls the
- * cleanup routine if we exit our scope weirdly
- */
- #define pthread_cleanup_push( _rout, _arg )
- {
- PThreadCleanup cleanup((ptw32_cleanup_callback_t)(_rout),
- (void *) (_arg) );
- #define pthread_cleanup_pop( _execute )
- cleanup.execute( _execute );
- }
- #else
- #error ERROR [__FILE__, line __LINE__]: Cleanup type undefined.
- #endif /* __CLEANUP_CXX */
- #endif /* __CLEANUP_C */
- #endif /* __CLEANUP_SEH */
- /*
- * ===============
- * ===============
- * Methods
- * ===============
- * ===============
- */
- /*
- * PThread Attribute Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_init (pthread_attr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_destroy (pthread_attr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_getdetachstate (const pthread_attr_t * attr,
- int *detachstate);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_getstackaddr (const pthread_attr_t * attr,
- void **stackaddr);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_getstacksize (const pthread_attr_t * attr,
- size_t * stacksize);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_setdetachstate (pthread_attr_t * attr,
- int detachstate);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_setstackaddr (pthread_attr_t * attr,
- void *stackaddr);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_setstacksize (pthread_attr_t * attr,
- size_t stacksize);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_getschedparam (const pthread_attr_t *attr,
- struct sched_param *param);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_setschedparam (pthread_attr_t *attr,
- const struct sched_param *param);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_setschedpolicy (pthread_attr_t *,
- int);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_getschedpolicy (pthread_attr_t *,
- int *);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_setinheritsched(pthread_attr_t * attr,
- int inheritsched);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_getinheritsched(pthread_attr_t * attr,
- int * inheritsched);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_setscope (pthread_attr_t *,
- int);
- PTW32_DLLPORT int PTW32_CDECL pthread_attr_getscope (const pthread_attr_t *,
- int *);
- /*
- * PThread Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_create (pthread_t * tid,
- const pthread_attr_t * attr,
- void *(*start) (void *),
- void *arg);
- PTW32_DLLPORT int PTW32_CDECL pthread_detach (pthread_t tid);
- PTW32_DLLPORT int PTW32_CDECL pthread_equal (pthread_t t1,
- pthread_t t2);
- PTW32_DLLPORT void PTW32_CDECL pthread_exit (void *value_ptr);
- PTW32_DLLPORT int PTW32_CDECL pthread_join (pthread_t thread,
- void **value_ptr);
- PTW32_DLLPORT pthread_t PTW32_CDECL pthread_self (void);
- PTW32_DLLPORT int PTW32_CDECL pthread_cancel (pthread_t thread);
- PTW32_DLLPORT int PTW32_CDECL pthread_setcancelstate (int state,
- int *oldstate);
- PTW32_DLLPORT int PTW32_CDECL pthread_setcanceltype (int type,
- int *oldtype);
- PTW32_DLLPORT void PTW32_CDECL pthread_testcancel (void);
- PTW32_DLLPORT int PTW32_CDECL pthread_once (pthread_once_t * once_control,
- void (*init_routine) (void));
- #if PTW32_LEVEL >= PTW32_LEVEL_MAX
- PTW32_DLLPORT ptw32_cleanup_t * PTW32_CDECL ptw32_pop_cleanup (int execute);
- PTW32_DLLPORT void PTW32_CDECL ptw32_push_cleanup (ptw32_cleanup_t * cleanup,
- void (*routine) (void *),
- void *arg);
- #endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
- /*
- * Thread Specific Data Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_key_create (pthread_key_t * key,
- void (*destructor) (void *));
- PTW32_DLLPORT int PTW32_CDECL pthread_key_delete (pthread_key_t key);
- PTW32_DLLPORT int PTW32_CDECL pthread_setspecific (pthread_key_t key,
- const void *value);
- PTW32_DLLPORT void * PTW32_CDECL pthread_getspecific (pthread_key_t key);
- /*
- * Mutex Attribute Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_init (pthread_mutexattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_destroy (pthread_mutexattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_getpshared (const pthread_mutexattr_t
- * attr,
- int *pshared);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_setpshared (pthread_mutexattr_t * attr,
- int pshared);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_settype (pthread_mutexattr_t * attr, int kind);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_gettype (pthread_mutexattr_t * attr, int *kind);
- /*
- * Barrier Attribute Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_barrierattr_init (pthread_barrierattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_barrierattr_destroy (pthread_barrierattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_barrierattr_getpshared (const pthread_barrierattr_t
- * attr,
- int *pshared);
- PTW32_DLLPORT int PTW32_CDECL pthread_barrierattr_setpshared (pthread_barrierattr_t * attr,
- int pshared);
- /*
- * Mutex Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_mutex_init (pthread_mutex_t * mutex,
- const pthread_mutexattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutex_destroy (pthread_mutex_t * mutex);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutex_lock (pthread_mutex_t * mutex);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutex_timedlock(pthread_mutex_t *mutex,
- const struct timespec *abstime);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutex_trylock (pthread_mutex_t * mutex);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutex_unlock (pthread_mutex_t * mutex);
- /*
- * Spinlock Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_spin_init (pthread_spinlock_t * lock, int pshared);
- PTW32_DLLPORT int PTW32_CDECL pthread_spin_destroy (pthread_spinlock_t * lock);
- PTW32_DLLPORT int PTW32_CDECL pthread_spin_lock (pthread_spinlock_t * lock);
- PTW32_DLLPORT int PTW32_CDECL pthread_spin_trylock (pthread_spinlock_t * lock);
- PTW32_DLLPORT int PTW32_CDECL pthread_spin_unlock (pthread_spinlock_t * lock);
- /*
- * Barrier Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_barrier_init (pthread_barrier_t * barrier,
- const pthread_barrierattr_t * attr,
- unsigned int count);
- PTW32_DLLPORT int PTW32_CDECL pthread_barrier_destroy (pthread_barrier_t * barrier);
- PTW32_DLLPORT int PTW32_CDECL pthread_barrier_wait (pthread_barrier_t * barrier);
- /*
- * Condition Variable Attribute Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_condattr_init (pthread_condattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_condattr_destroy (pthread_condattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_condattr_getpshared (const pthread_condattr_t * attr,
- int *pshared);
- PTW32_DLLPORT int PTW32_CDECL pthread_condattr_setpshared (pthread_condattr_t * attr,
- int pshared);
- /*
- * Condition Variable Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_cond_init (pthread_cond_t * cond,
- const pthread_condattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_cond_destroy (pthread_cond_t * cond);
- PTW32_DLLPORT int PTW32_CDECL pthread_cond_wait (pthread_cond_t * cond,
- pthread_mutex_t * mutex);
- PTW32_DLLPORT int PTW32_CDECL pthread_cond_timedwait (pthread_cond_t * cond,
- pthread_mutex_t * mutex,
- const struct timespec *abstime);
- PTW32_DLLPORT int PTW32_CDECL pthread_cond_signal (pthread_cond_t * cond);
- PTW32_DLLPORT int PTW32_CDECL pthread_cond_broadcast (pthread_cond_t * cond);
- /*
- * Scheduling
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_setschedparam (pthread_t thread,
- int policy,
- const struct sched_param *param);
- PTW32_DLLPORT int PTW32_CDECL pthread_getschedparam (pthread_t thread,
- int *policy,
- struct sched_param *param);
- PTW32_DLLPORT int PTW32_CDECL pthread_setconcurrency (int);
-
- PTW32_DLLPORT int PTW32_CDECL pthread_getconcurrency (void);
- /*
- * Read-Write Lock Functions
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_init(pthread_rwlock_t *lock,
- const pthread_rwlockattr_t *attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_destroy(pthread_rwlock_t *lock);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_tryrdlock(pthread_rwlock_t *);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_trywrlock(pthread_rwlock_t *);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_rdlock(pthread_rwlock_t *lock);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_timedrdlock(pthread_rwlock_t *lock,
- const struct timespec *abstime);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_wrlock(pthread_rwlock_t *lock);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_timedwrlock(pthread_rwlock_t *lock,
- const struct timespec *abstime);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlock_unlock(pthread_rwlock_t *lock);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlockattr_init (pthread_rwlockattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlockattr_destroy (pthread_rwlockattr_t * attr);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlockattr_getpshared (const pthread_rwlockattr_t * attr,
- int *pshared);
- PTW32_DLLPORT int PTW32_CDECL pthread_rwlockattr_setpshared (pthread_rwlockattr_t * attr,
- int pshared);
- #if PTW32_LEVEL >= PTW32_LEVEL_MAX - 1
- /*
- * Signal Functions. Should be defined in <signal.h> but MSVC and MinGW32
- * already have signal.h that don't define these.
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_kill(pthread_t thread, int sig);
- /*
- * Non-portable functions
- */
- /*
- * Compatibility with Linux.
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_setkind_np(pthread_mutexattr_t * attr,
- int kind);
- PTW32_DLLPORT int PTW32_CDECL pthread_mutexattr_getkind_np(pthread_mutexattr_t * attr,
- int *kind);
- /*
- * Possibly supported by other POSIX threads implementations
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_delay_np (struct timespec * interval);
- PTW32_DLLPORT int PTW32_CDECL pthread_num_processors_np(void);
- /*
- * Useful if an application wants to statically link
- * the lib rather than load the DLL at run-time.
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_win32_process_attach_np(void);
- PTW32_DLLPORT int PTW32_CDECL pthread_win32_process_detach_np(void);
- PTW32_DLLPORT int PTW32_CDECL pthread_win32_thread_attach_np(void);
- PTW32_DLLPORT int PTW32_CDECL pthread_win32_thread_detach_np(void);
- /*
- * Features that are auto-detected at load/run time.
- */
- PTW32_DLLPORT int PTW32_CDECL pthread_win32_test_features_np(int);
- enum ptw32_features {
- PTW32_SYSTEM_INTERLOCKED_COMPARE_EXCHANGE = 0x0001, /* System provides it. */
- PTW32_ALERTABLE_ASYNC_CANCEL = 0x0002 /* Can cancel blocked threads. */
- };
- /*
- * Register a system time change with the library.
- * Causes the library to perform various functions
- * in response to the change. Should be called whenever
- * the application's top level window receives a
- * WM_TIMECHANGE message. It can be passed directly to
- * pthread_create() as a new thread if desired.
- */
- PTW32_DLLPORT void * PTW32_CDECL pthread_timechange_handler_np(void *);
- #endif /*PTW32_LEVEL >= PTW32_LEVEL_MAX - 1 */
- #if PTW32_LEVEL >= PTW32_LEVEL_MAX
- /*
- * Returns the Win32 HANDLE for the POSIX thread.
- */
- PTW32_DLLPORT HANDLE PTW32_CDECL pthread_getw32threadhandle_np(pthread_t thread);
- /*
- * Protected Methods
- *
- * This function blocks until the given WIN32 handle
- * is signaled or pthread_cancel had been called.
- * This function allows the caller to hook into the
- * PThreads cancel mechanism. It is implemented using
- *
- * WaitForMultipleObjects
- *
- * on 'waitHandle' and a manually reset WIN32 Event
- * used to implement pthread_cancel. The 'timeout'
- * argument to TimedWait is simply passed to
- * WaitForMultipleObjects.
- */
- PTW32_DLLPORT int PTW32_CDECL pthreadCancelableWait (HANDLE waitHandle);
- PTW32_DLLPORT int PTW32_CDECL pthreadCancelableTimedWait (HANDLE waitHandle,
- DWORD timeout);
- #endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
- /*
- * Thread-Safe C Runtime Library Mappings.
- */
- #ifndef _UWIN
- # if defined(NEED_ERRNO)
- PTW32_DLLPORT int * PTW32_CDECL _errno( void );
- # else
- # ifndef errno
- # if (defined(_MT) || defined(_DLL))
- __declspec(dllimport) extern int * __cdecl _errno(void);
- # define errno (*_errno())
- # endif
- # endif
- # endif
- #endif
- /*
- * WIN32 C runtime library had been made thread-safe
- * without affecting the user interface. Provide
- * mappings from the UNIX thread-safe versions to
- * the standard C runtime library calls.
- * Only provide function mappings for functions that
- * actually exist on WIN32.
- */
- #if !defined(__MINGW32__)
- #define strtok_r( _s, _sep, _lasts )
- ( *(_lasts) = strtok( (_s), (_sep) ) )
- #endif /* !__MINGW32__ */
- #define asctime_r( _tm, _buf )
- ( strcpy( (_buf), asctime( (_tm) ) ),
- (_buf) )
- #define ctime_r( _clock, _buf )
- ( strcpy( (_buf), ctime( (_clock) ) ),
- (_buf) )
- #define gmtime_r( _clock, _result )
- ( *(_result) = *gmtime( (_clock) ),
- (_result) )
- #define localtime_r( _clock, _result )
- ( *(_result) = *localtime( (_clock) ),
- (_result) )
- #define rand_r( _seed )
- ( _seed == _seed? rand() : rand() )
- /*
- * Some compiler environments don't define some things.
- */
- #if defined(__BORLANDC__)
- # define _ftime ftime
- # define _timeb timeb
- #endif
- #ifdef __cplusplus
- /*
- * Internal exceptions
- */
- class ptw32_exception {};
- class ptw32_exception_cancel : public ptw32_exception {};
- class ptw32_exception_exit : public ptw32_exception {};
- #endif
- #if PTW32_LEVEL >= PTW32_LEVEL_MAX
- /* FIXME: This is only required if the library was built using SEH */
- /*
- * Get internal SEH tag
- */
- PTW32_DLLPORT DWORD PTW32_CDECL ptw32_get_exception_services_code(void);
- #endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
- #ifndef PTW32_BUILD
- #ifdef __CLEANUP_SEH
- /*
- * Redefine the SEH __except keyword to ensure that applications
- * propagate our internal exceptions up to the library's internal handlers.
- */
- #define __except( E )
- __except( ( GetExceptionCode() == ptw32_get_exception_services_code() )
- ? EXCEPTION_CONTINUE_SEARCH : ( E ) )
- #endif /* __CLEANUP_SEH */
- #ifdef __CLEANUP_CXX
- /*
- * Redefine the C++ catch keyword to ensure that applications
- * propagate our internal exceptions up to the library's internal handlers.
- */
- #ifdef _MSC_VER
- /*
- * WARNING: Replace any 'catch( ... )' with 'PtW32CatchAll'
- * if you want Pthread-Win32 cancelation and pthread_exit to work.
- */
- #ifndef PtW32NoCatchWarn
- #pragma message("Specify "/DPtW32NoCatchWarn" compiler flag to skip this message.")
- #pragma message("------------------------------------------------------------------")
- #pragma message("When compiling applications with MSVC++ and C++ exception handling:")
- #pragma message(" Replace any 'catch( ... )' in routines called from POSIX threads")
- #pragma message(" with 'PtW32CatchAll' or 'CATCHALL' if you want POSIX thread")
- #pragma message(" cancelation and pthread_exit to work. For example:")
- #pragma message("")
- #pragma message(" #ifdef PtW32CatchAll")
- #pragma message(" PtW32CatchAll")
- #pragma message(" #else")
- #pragma message(" catch(...)")
- #pragma message(" #endif")
- #pragma message(" {")
- #pragma message(" /* Catchall block processing */")
- #pragma message(" }")
- #pragma message("------------------------------------------------------------------")
- #endif
- #define PtW32CatchAll
- catch( ptw32_exception & ) { throw; }
- catch( ... )
- #else /* _MSC_VER */
- #define catch( E )
- catch( ptw32_exception & ) { throw; }
- catch( E )
- #endif /* _MSC_VER */
- #endif /* __CLEANUP_CXX */
- #endif /* ! PTW32_BUILD */
- #ifdef __cplusplus
- } /* End of extern "C" */
- #endif /* __cplusplus */
- #ifdef PTW32__HANDLE_DEF
- # undef HANDLE
- #endif
- #ifdef PTW32__DWORD_DEF
- # undef DWORD
- #endif
- #undef PTW32_LEVEL
- #undef PTW32_LEVEL_MAX
- #endif /* ! RC_INVOKED */
- #endif /* PTHREAD_H */