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- Update wcecompat by adding new threading functions(_endthread, endthread, _beginthreadex and beginthreadex) 

- Add pthread binaries and headers for both win32 and wince platforms
This commit is contained in:
imsframework 2009-10-31 22:20:50 +00:00
parent 09cc20c13e
commit 2167d9c262
10 changed files with 2422 additions and 0 deletions
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/*
* implement.h
*
* Definitions that don't need to be public.
*
* Keeps all the internals out of pthread.h
*
* --------------------------------------------------------------------------
*
* 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
*/
#ifndef _IMPLEMENT_H
#define _IMPLEMENT_H
#ifdef _WIN32_WINNT
#undef _WIN32_WINNT
#endif
#define _WIN32_WINNT 0x400
#include <windows.h>
/*
* In case windows.h doesn't define it (e.g. WinCE perhaps)
*/
#ifdef WINCE
typedef VOID (APIENTRY *PAPCFUNC)(DWORD dwParam);
#endif
/*
* note: ETIMEDOUT is correctly defined in winsock.h
*/
#include <winsock.h>
/*
* In case ETIMEDOUT hasn't been defined above somehow.
*/
#ifndef ETIMEDOUT
# define ETIMEDOUT 10060 /* This is the value in winsock.h. */
#endif
#if !defined(malloc)
#include <malloc.h>
#endif
#if !defined(INT_MAX)
#include <limits.h>
#endif
/* use local include files during development */
#include "semaphore.h"
#include "sched.h"
#if defined(HAVE_C_INLINE) || defined(__cplusplus)
#define INLINE inline
#else
#define INLINE
#endif
#if defined (__MINGW32__) || (_MSC_VER >= 1300)
#define PTW32_INTERLOCKED_LONG long
#define PTW32_INTERLOCKED_LPLONG long*
#else
#define PTW32_INTERLOCKED_LONG PVOID
#define PTW32_INTERLOCKED_LPLONG PVOID*
#endif
#if defined(_WIN32_WCE)
#include <stdint.h>
#elif defined(__BORLANDC__)
#define int64_t ULONGLONG
#else
#define int64_t _int64
#endif
typedef enum
{
/*
* This enumeration represents the state of the thread;
* The thread is still "alive" if the numeric value of the
* state is greater or equal "PThreadStateRunning".
*/
PThreadStateInitial = 0, /* Thread not running */
PThreadStateRunning, /* Thread alive & kicking */
PThreadStateSuspended, /* Thread alive but suspended */
PThreadStateCancelPending, /* Thread alive but is */
/* has cancelation pending. */
PThreadStateCanceling, /* Thread alive but is */
/* in the process of terminating */
/* due to a cancellation request */
PThreadStateException, /* Thread alive but exiting */
/* due to an exception */
PThreadStateLast
}
PThreadState;
typedef struct ptw32_thread_t_ ptw32_thread_t;
struct ptw32_thread_t_
{
#ifdef _UWIN
DWORD dummy[5];
#endif
DWORD thread;
HANDLE threadH; /* Win32 thread handle - POSIX thread is invalid if threadH == 0 */
pthread_t ptHandle; /* This thread's permanent pthread_t handle */
ptw32_thread_t * prevReuse; /* Links threads on reuse stack */
volatile PThreadState state;
void *exitStatus;
void *parms;
int ptErrno;
int detachState;
pthread_mutex_t threadLock; /* Used for serialised access to public thread state */
int sched_priority; /* As set, not as currently is */
pthread_mutex_t cancelLock; /* Used for async-cancel safety */
int cancelState;
int cancelType;
HANDLE cancelEvent;
#ifdef __CLEANUP_C
jmp_buf start_mark;
#endif /* __CLEANUP_C */
#if HAVE_SIGSET_T
sigset_t sigmask;
#endif /* HAVE_SIGSET_T */
int implicit:1;
void *keys;
void *nextAssoc;
};
/*
* Special value to mark attribute objects as valid.
*/
#define PTW32_ATTR_VALID ((unsigned long) 0xC4C0FFEE)
struct pthread_attr_t_
{
unsigned long valid;
void *stackaddr;
size_t stacksize;
int detachstate;
struct sched_param param;
int inheritsched;
int contentionscope;
#if HAVE_SIGSET_T
sigset_t sigmask;
#endif /* HAVE_SIGSET_T */
};
/*
* ====================
* ====================
* Semaphores, Mutexes and Condition Variables
* ====================
* ====================
*/
struct sem_t_
{
int value;
pthread_mutex_t lock;
HANDLE sem;
#ifdef NEED_SEM
int leftToUnblock;
#endif
};
#define PTW32_OBJECT_AUTO_INIT ((void *) -1)
#define PTW32_OBJECT_INVALID NULL
struct pthread_mutex_t_
{
LONG lock_idx; /* Provides exclusive access to mutex state
via the Interlocked* mechanism.
0: unlocked/free.
1: locked - no other waiters.
-1: locked - with possible other waiters.
*/
int recursive_count; /* Number of unlocks a thread needs to perform
before the lock is released (recursive
mutexes only). */
int kind; /* Mutex type. */
pthread_t ownerThread;
HANDLE event; /* Mutex release notification to waiting
threads. */
};
struct pthread_mutexattr_t_
{
int pshared;
int kind;
};
/*
* Possible values, other than PTW32_OBJECT_INVALID,
* for the "interlock" element in a spinlock.
*
* In this implementation, when a spinlock is initialised,
* the number of cpus available to the process is checked.
* If there is only one cpu then "interlock" is set equal to
* PTW32_SPIN_USE_MUTEX and u.mutex is a initialised mutex.
* If the number of cpus is greater than 1 then "interlock"
* is set equal to PTW32_SPIN_UNLOCKED and the number is
* stored in u.cpus. This arrangement allows the spinlock
* routines to attempt an InterlockedCompareExchange on "interlock"
* immediately and, if that fails, to try the inferior mutex.
*
* "u.cpus" isn't used for anything yet, but could be used at
* some point to optimise spinlock behaviour.
*/
#define PTW32_SPIN_UNLOCKED (1)
#define PTW32_SPIN_LOCKED (2)
#define PTW32_SPIN_USE_MUTEX (3)
struct pthread_spinlock_t_
{
long interlock; /* Locking element for multi-cpus. */
union
{
int cpus; /* No. of cpus if multi cpus, or */
pthread_mutex_t mutex; /* mutex if single cpu. */
} u;
};
struct pthread_barrier_t_
{
unsigned int nCurrentBarrierHeight;
unsigned int nInitialBarrierHeight;
int iStep;
int pshared;
sem_t semBarrierBreeched[2];
};
struct pthread_barrierattr_t_
{
int pshared;
};
struct pthread_key_t_
{
DWORD key;
void (*destructor) (void *);
pthread_mutex_t keyLock;
void *threads;
};
typedef struct ThreadParms ThreadParms;
typedef struct ThreadKeyAssoc ThreadKeyAssoc;
struct ThreadParms
{
pthread_t tid;
void *(*start) (void *);
void *arg;
};
struct pthread_cond_t_
{
long nWaitersBlocked; /* Number of threads blocked */
long nWaitersGone; /* Number of threads timed out */
long nWaitersToUnblock; /* Number of threads to unblock */
sem_t semBlockQueue; /* Queue up threads waiting for the */
/* condition to become signalled */
sem_t semBlockLock; /* Semaphore that guards access to */
/* | waiters blocked count/block queue */
/* +-> Mandatory Sync.LEVEL-1 */
pthread_mutex_t mtxUnblockLock; /* Mutex that guards access to */
/* | waiters (to)unblock(ed) counts */
/* +-> Optional* Sync.LEVEL-2 */
pthread_cond_t next; /* Doubly linked list */
pthread_cond_t prev;
};
struct pthread_condattr_t_
{
int pshared;
};
#define PTW32_RWLOCK_MAGIC 0xfacade2
struct pthread_rwlock_t_
{
pthread_mutex_t mtxExclusiveAccess;
pthread_mutex_t mtxSharedAccessCompleted;
pthread_cond_t cndSharedAccessCompleted;
int nSharedAccessCount;
int nExclusiveAccessCount;
int nCompletedSharedAccessCount;
int nMagic;
};
struct pthread_rwlockattr_t_
{
int pshared;
};
/*
* MCS lock queue node - see ptw32_MCS_lock.c
*/
struct ptw32_mcs_node_t_
{
struct ptw32_mcs_node_t_ **lock; /* ptr to tail of queue */
struct ptw32_mcs_node_t_ *next; /* ptr to successor in queue */
LONG readyFlag; /* set after lock is released by
predecessor */
LONG nextFlag; /* set after 'next' ptr is set by
successor */
};
typedef struct ptw32_mcs_node_t_ ptw32_mcs_local_node_t;
typedef struct ptw32_mcs_node_t_ *ptw32_mcs_lock_t;
struct ThreadKeyAssoc
{
/*
* Purpose:
* This structure creates an association between a thread and a key.
* It is used to implement the implicit invocation of a user defined
* destroy routine for thread specific data registered by a user upon
* exiting a thread.
*
* Graphically, the arrangement is as follows, where:
*
* K - Key with destructor
* (head of chain is key->threads)
* T - Thread that has called pthread_setspecific(Kn)
* (head of chain is thread->keys)
* A - Association. Each association is a node at the
* intersection of two doubly-linked lists.
*
* T1 T2 T3
* | | |
* | | |
* K1 -----+-----A-----A----->
* | | |
* | | |
* K2 -----A-----A-----+----->
* | | |
* | | |
* K3 -----A-----+-----A----->
* | | |
* | | |
* V V V
*
* Access to the association is guarded by two locks: the key's
* general lock (guarding the row) and the thread's general
* lock (guarding the column). This avoids the need for a
* dedicated lock for each association, which not only consumes
* more handles but requires that: before the lock handle can
* be released - both the key must be deleted and the thread
* must have called the destructor. The two-lock arrangement
* allows the resources to be freed as soon as either thread or
* key is concluded.
*
* To avoid deadlock: whenever both locks are required, the key
* and thread locks are always acquired in the order: key lock
* then thread lock. An exception to this exists when a thread
* calls the destructors, however this is done carefully to
* avoid deadlock.
*
* An association is created when a thread first calls
* pthread_setspecific() on a key that has a specified
* destructor.
*
* An association is destroyed either immediately after the
* thread calls the key destructor function on thread exit, or
* when the key is deleted.
*
* Attributes:
* thread
* reference to the thread that owns the
* association. This is actually the pointer to the
* thread struct itself. Since the association is
* destroyed before the thread exits, this can never
* point to a different logical thread to the one that
* created the assoc, i.e. after thread struct reuse.
*
* key
* reference to the key that owns the association.
*
* nextKey
* The pthread_t->keys attribute is the head of a
* chain of associations that runs through the nextKey
* link. This chain provides the 1 to many relationship
* between a pthread_t and all pthread_key_t on which
* it called pthread_setspecific.
*
* prevKey
* Similarly.
*
* nextThread
* The pthread_key_t->threads attribute is the head of
* a chain of assoctiations that runs through the
* nextThreads link. This chain provides the 1 to many
* relationship between a pthread_key_t and all the
* PThreads that have called pthread_setspecific for
* this pthread_key_t.
*
* prevThread
* Similarly.
*
* Notes:
* 1) As soon as either the key or the thread is no longer
* referencing the association, it can be destroyed. The
* association will be removed from both chains.
*
* 2) Under WIN32, an association is only created by
* pthread_setspecific if the user provided a
* destroyRoutine when they created the key.
*
*
*/
ptw32_thread_t * thread;
pthread_key_t key;
ThreadKeyAssoc *nextKey;
ThreadKeyAssoc *nextThread;
ThreadKeyAssoc *prevKey;
ThreadKeyAssoc *prevThread;
};
#ifdef __CLEANUP_SEH
/*
* --------------------------------------------------------------
* MAKE_SOFTWARE_EXCEPTION
* This macro constructs a software exception code following
* the same format as the standard Win32 error codes as defined
* in WINERROR.H
* Values are 32 bit values layed out as follows:
*
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
* +---+-+-+-----------------------+-------------------------------+
* |Sev|C|R| Facility | Code |
* +---+-+-+-----------------------+-------------------------------+
*
* Severity Values:
*/
#define SE_SUCCESS 0x00
#define SE_INFORMATION 0x01
#define SE_WARNING 0x02
#define SE_ERROR 0x03
#define MAKE_SOFTWARE_EXCEPTION( _severity, _facility, _exception ) \
( (DWORD) ( ( (_severity) << 30 ) | /* Severity code */ \
( 1 << 29 ) | /* MS=0, User=1 */ \
( 0 << 28 ) | /* Reserved */ \
( (_facility) << 16 ) | /* Facility Code */ \
( (_exception) << 0 ) /* Exception Code */ \
) )
/*
* We choose one specific Facility/Error code combination to
* identify our software exceptions vs. WIN32 exceptions.
* We store our actual component and error code within
* the optional information array.
*/
#define EXCEPTION_PTW32_SERVICES \
MAKE_SOFTWARE_EXCEPTION( SE_ERROR, \
PTW32_SERVICES_FACILITY, \
PTW32_SERVICES_ERROR )
#define PTW32_SERVICES_FACILITY 0xBAD
#define PTW32_SERVICES_ERROR 0xDEED
#endif /* __CLEANUP_SEH */
/*
* Services available through EXCEPTION_PTW32_SERVICES
* and also used [as parameters to ptw32_throw()] as
* generic exception selectors.
*/
#define PTW32_EPS_EXIT (1)
#define PTW32_EPS_CANCEL (2)
/* Useful macros */
#define PTW32_MAX(a,b) ((a)<(b)?(b):(a))
#define PTW32_MIN(a,b) ((a)>(b)?(b):(a))
/* Declared in global.c */
extern PTW32_INTERLOCKED_LONG (WINAPI *
ptw32_interlocked_compare_exchange)
(PTW32_INTERLOCKED_LPLONG, PTW32_INTERLOCKED_LONG, PTW32_INTERLOCKED_LONG);
/* Declared in pthread_cancel.c */
extern DWORD (*ptw32_register_cancelation) (PAPCFUNC, HANDLE, DWORD);
/* Thread Reuse stack bottom marker. Must not be NULL or any valid pointer to memory. */
#define PTW32_THREAD_REUSE_EMPTY ((ptw32_thread_t *) 1)
extern int ptw32_processInitialized;
extern ptw32_thread_t * ptw32_threadReuseTop;
extern ptw32_thread_t * ptw32_threadReuseBottom;
extern pthread_key_t ptw32_selfThreadKey;
extern pthread_key_t ptw32_cleanupKey;
extern pthread_cond_t ptw32_cond_list_head;
extern pthread_cond_t ptw32_cond_list_tail;
extern int ptw32_mutex_default_kind;
extern int ptw32_concurrency;
extern int ptw32_features;
extern BOOL ptw32_smp_system; /* True: SMP system, False: Uni-processor system */
extern CRITICAL_SECTION ptw32_thread_reuse_lock;
extern CRITICAL_SECTION ptw32_mutex_test_init_lock;
extern CRITICAL_SECTION ptw32_cond_list_lock;
extern CRITICAL_SECTION ptw32_cond_test_init_lock;
extern CRITICAL_SECTION ptw32_rwlock_test_init_lock;
extern CRITICAL_SECTION ptw32_spinlock_test_init_lock;
#ifdef _UWIN
extern int pthread_count;
#endif
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/*
* =====================
* =====================
* Forward Declarations
* =====================
* =====================
*/
int ptw32_is_attr (const pthread_attr_t * attr);
int ptw32_cond_check_need_init (pthread_cond_t * cond);
int ptw32_mutex_check_need_init (pthread_mutex_t * mutex);
int ptw32_rwlock_check_need_init (pthread_rwlock_t * rwlock);
PTW32_INTERLOCKED_LONG WINAPI
ptw32_InterlockedCompareExchange (PTW32_INTERLOCKED_LPLONG location,
PTW32_INTERLOCKED_LONG value,
PTW32_INTERLOCKED_LONG comparand);
LONG WINAPI
ptw32_InterlockedExchange (LPLONG location,
LONG value);
DWORD
ptw32_RegisterCancelation (PAPCFUNC callback,
HANDLE threadH, DWORD callback_arg);
int ptw32_processInitialize (void);
void ptw32_processTerminate (void);
void ptw32_threadDestroy (pthread_t tid);
void ptw32_pop_cleanup_all (int execute);
pthread_t ptw32_new (void);
pthread_t ptw32_threadReusePop (void);
void ptw32_threadReusePush (pthread_t thread);
int ptw32_getprocessors (int *count);
int ptw32_setthreadpriority (pthread_t thread, int policy, int priority);
void ptw32_rwlock_cancelwrwait (void *arg);
#if ! defined (__MINGW32__) || defined (__MSVCRT__)
unsigned __stdcall
#else
void
#endif
ptw32_threadStart (void *vthreadParms);
void ptw32_callUserDestroyRoutines (pthread_t thread);
int ptw32_tkAssocCreate (ptw32_thread_t * thread, pthread_key_t key);
void ptw32_tkAssocDestroy (ThreadKeyAssoc * assoc);
int ptw32_semwait (sem_t * sem);
DWORD ptw32_relmillisecs (const struct timespec * abstime);
void ptw32_mcs_lock_acquire (ptw32_mcs_lock_t * lock, ptw32_mcs_local_node_t * node);
void ptw32_mcs_lock_release (ptw32_mcs_local_node_t * node);
#ifdef NEED_FTIME
void ptw32_timespec_to_filetime (const struct timespec *ts, FILETIME * ft);
void ptw32_filetime_to_timespec (const FILETIME * ft, struct timespec *ts);
#endif
/* Declared in misc.c */
#ifdef NEED_CALLOC
#define calloc(n, s) ptw32_calloc(n, s)
void *ptw32_calloc (size_t n, size_t s);
#endif
/* Declared in private.c */
void ptw32_throw (DWORD exception);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#ifdef _UWIN_
# ifdef _MT
# ifdef __cplusplus
extern "C"
{
# endif
_CRTIMP unsigned long __cdecl _beginthread (void (__cdecl *) (void *),
unsigned, void *);
_CRTIMP void __cdecl _endthread (void);
_CRTIMP unsigned long __cdecl _beginthreadex (void *, unsigned,
unsigned (__stdcall *) (void *),
void *, unsigned, unsigned *);
_CRTIMP void __cdecl _endthreadex (unsigned);
# ifdef __cplusplus
}
# endif
# endif
#else
# include <process.h>
#endif
/*
* Defaults. Could be overridden when building the inlined version of the dll.
* See ptw32_InterlockedCompareExchange.c
*/
#ifndef PTW32_INTERLOCKED_COMPARE_EXCHANGE
#define PTW32_INTERLOCKED_COMPARE_EXCHANGE ptw32_interlocked_compare_exchange
#endif
#ifndef PTW32_INTERLOCKED_EXCHANGE
#define PTW32_INTERLOCKED_EXCHANGE InterlockedExchange
#endif
/*
* Check for old and new versions of cygwin. See the FAQ file:
*
* Question 1 - How do I get pthreads-win32 to link under Cygwin or Mingw32?
*
* Patch by Anders Norlander <anorland@hem2.passagen.se>
*/
#if defined(__CYGWIN32__) || defined(__CYGWIN__) || defined(NEED_CREATETHREAD)
/*
* Macro uses args so we can cast start_proc to LPTHREAD_START_ROUTINE
* in order to avoid warnings because of return type
*/
#define _beginthreadex(security, \
stack_size, \
start_proc, \
arg, \
flags, \
pid) \
CreateThread(security, \
stack_size, \
(LPTHREAD_START_ROUTINE) start_proc, \
arg, \
flags, \
pid)
#define _endthreadex ExitThread
#endif /* __CYGWIN32__ || __CYGWIN__ || NEED_CREATETHREAD */
#endif /* _IMPLEMENT_H */

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/*
* Module: sched.h
*
* Purpose:
* Provides an implementation of POSIX realtime extensions
* as defined in
*
* POSIX 1003.1b-1993 (POSIX.1b)
*
* --------------------------------------------------------------------------
*
* 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
*/
#ifndef _SCHED_H
#define _SCHED_H
#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
#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
/*
* 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 */
#if defined(__MINGW32__) || defined(_UWIN)
#if PTW32_LEVEL >= PTW32_LEVEL_MAX
/* For pid_t */
# include <sys/types.h>
/* Required by Unix 98 */
# include <time.h>
#endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
#else
typedef int pid_t;
#endif
/* Thread scheduling policies */
enum {
SCHED_OTHER = 0,
SCHED_FIFO,
SCHED_RR,
SCHED_MIN = SCHED_OTHER,
SCHED_MAX = SCHED_RR
};
struct sched_param {
int sched_priority;
};
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
PTW32_DLLPORT int __cdecl sched_yield (void);
PTW32_DLLPORT int __cdecl sched_get_priority_min (int policy);
PTW32_DLLPORT int __cdecl sched_get_priority_max (int policy);
PTW32_DLLPORT int __cdecl sched_setscheduler (pid_t pid, int policy);
PTW32_DLLPORT int __cdecl sched_getscheduler (pid_t pid);
/*
* Note that this macro returns ENOTSUP rather than
* ENOSYS as might be expected. However, returning ENOSYS
* should mean that sched_get_priority_{min,max} are
* not implemented as well as sched_rr_get_interval.
* This is not the case, since we just don't support
* round-robin scheduling. Therefore I have chosen to
* return the same value as sched_setscheduler when
* SCHED_RR is passed to it.
*/
#define sched_rr_get_interval(_pid, _interval) \
( errno = ENOTSUP, (int) -1 )
#ifdef __cplusplus
} /* End of extern "C" */
#endif /* __cplusplus */
#undef PTW32_LEVEL
#undef PTW32_LEVEL_MAX
#endif /* !_SCHED_H */

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/*
* Module: semaphore.h
*
* Purpose:
* Semaphores aren't actually part of the PThreads standard.
* They are defined by the POSIX Standard:
*
* POSIX 1003.1b-1993 (POSIX.1b)
*
* --------------------------------------------------------------------------
*
* 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( SEMAPHORE_H )
#define SEMAPHORE_H
#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
#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
/*
* 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 */
#define _POSIX_SEMAPHORES
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
#ifndef HAVE_MODE_T
typedef unsigned int mode_t;
#endif
typedef struct sem_t_ * sem_t;
PTW32_DLLPORT int __cdecl sem_init (sem_t * sem,
int pshared,
unsigned int value);
PTW32_DLLPORT int __cdecl sem_destroy (sem_t * sem);
PTW32_DLLPORT int __cdecl sem_trywait (sem_t * sem);
PTW32_DLLPORT int __cdecl sem_wait (sem_t * sem);
PTW32_DLLPORT int __cdecl sem_timedwait (sem_t * sem,
const struct timespec * abstime);
PTW32_DLLPORT int __cdecl sem_post (sem_t * sem);
PTW32_DLLPORT int __cdecl sem_post_multiple (sem_t * sem,
int count);
PTW32_DLLPORT int __cdecl sem_open (const char * name,
int oflag,
mode_t mode,
unsigned int value);
PTW32_DLLPORT int __cdecl sem_close (sem_t * sem);
PTW32_DLLPORT int __cdecl sem_unlink (const char * name);
PTW32_DLLPORT int __cdecl sem_getvalue (sem_t * sem,
int * sval);
#ifdef __cplusplus
} /* End of extern "C" */
#endif /* __cplusplus */
#undef PTW32_LEVEL
#undef PTW32_LEVEL_MAX
#endif /* !SEMAPHORE_H */

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