/* * 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: Ross.Johnson@homemail.com.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(_IMPLEMENT_H) #define _IMPLEMENT_H #if !defined(_WIN32_WINNT) #define _WIN32_WINNT 0x0400 #endif #include /* * In case windows.h doesn't define it (e.g. WinCE perhaps) */ #if defined(WINCE) typedef VOID (APIENTRY *PAPCFUNC)(DWORD dwParam); #endif /* * note: ETIMEDOUT is correctly defined in winsock.h */ #include /* * In case ETIMEDOUT hasn't been defined above somehow. */ #if !defined(ETIMEDOUT) # define ETIMEDOUT 10060 /* This is the value in winsock.h. */ #endif #if !defined(malloc) #include #endif #if defined(__CLEANUP_C) # include #endif #if !defined(INT_MAX) #include #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(_MSC_VER) && _MSC_VER < 1300 /* * MSVC 6 does not use the "volatile" qualifier */ #define PTW32_INTERLOCKED_VOLATILE #else #define PTW32_INTERLOCKED_VOLATILE volatile #endif #define PTW32_INTERLOCKED_LONG long #define PTW32_INTERLOCKED_SIZE size_t #define PTW32_INTERLOCKED_PVOID PVOID #define PTW32_INTERLOCKED_LONGPTR PTW32_INTERLOCKED_VOLATILE long* #define PTW32_INTERLOCKED_SIZEPTR PTW32_INTERLOCKED_VOLATILE size_t* #define PTW32_INTERLOCKED_PVOID_PTR PTW32_INTERLOCKED_VOLATILE PVOID* #if defined(__MINGW64__) || defined(__MINGW32__) # include #elif defined(__BORLANDC__) # define int64_t ULONGLONG #else # define int64_t _int64 # if defined(_MSC_VER) && _MSC_VER < 1300 typedef long intptr_t; # endif #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 */ /* has cancelation pending. */ PThreadStateCanceling, /* Thread alive but is */ /* in the process of terminating */ /* due to a cancellation request */ PThreadStateExiting, /* Thread alive but exiting */ /* due to an exception */ PThreadStateLast, /* All handlers have been run and now */ /* final cleanup can be done. */ PThreadStateReuse /* In reuse pool. */ } PThreadState; typedef struct ptw32_mcs_node_t_ ptw32_mcs_local_node_t; typedef struct ptw32_mcs_node_t_* ptw32_mcs_lock_t; typedef struct ptw32_robust_node_t_ ptw32_robust_node_t; typedef struct ptw32_thread_t_ ptw32_thread_t; struct ptw32_thread_t_ { unsigned __int64 seqNumber; /* Process-unique thread sequence number */ 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; ptw32_mcs_lock_t threadLock; /* Used for serialised access to public thread state */ ptw32_mcs_lock_t stateLock; /* Used for async-cancel safety */ HANDLE cancelEvent; void *exitStatus; void *parms; void *keys; void *nextAssoc; #if defined(__CLEANUP_C) jmp_buf start_mark; /* Jump buffer follows void* so should be aligned */ #endif /* __CLEANUP_C */ #if defined(HAVE_SIGSET_T) sigset_t sigmask; #endif /* HAVE_SIGSET_T */ ptw32_mcs_lock_t robustMxListLock; /* robustMxList lock */ ptw32_robust_node_t* robustMxList; /* List of currenty held robust mutexes */ int ptErrno; int detachState; int sched_priority; /* As set, not as currently is */ int cancelState; int cancelType; int implicit:1; DWORD thread; /* Win32 thread ID */ #if defined(_UWIN) DWORD dummy[5]; #endif size_t align; /* Force alignment if this struct is packed */ }; /* * 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 defined(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; #if defined(NEED_SEM) int leftToUnblock; #endif }; #define PTW32_OBJECT_AUTO_INIT ((void *)(size_t) -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. */ ptw32_robust_node_t* robustNode; /* Extra state for robust mutexes */ }; enum ptw32_robust_state_t_ { PTW32_ROBUST_CONSISTENT, PTW32_ROBUST_INCONSISTENT, PTW32_ROBUST_NOTRECOVERABLE }; typedef enum ptw32_robust_state_t_ ptw32_robust_state_t; /* * Node used to manage per-thread lists of currently-held robust mutexes. */ struct ptw32_robust_node_t_ { pthread_mutex_t mx; ptw32_robust_state_t stateInconsistent; ptw32_robust_node_t* prev; ptw32_robust_node_t* next; }; struct pthread_mutexattr_t_ { int pshared; int kind; int robustness; }; /* * 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 an 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_INVALID (0) #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; }; /* * 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 */ HANDLE readyFlag; /* set after lock is released by predecessor */ HANDLE nextFlag; /* set after 'next' ptr is set by successor */ }; struct pthread_barrier_t_ { unsigned int nCurrentBarrierHeight; unsigned int nInitialBarrierHeight; int pshared; sem_t semBarrierBreeched; ptw32_mcs_lock_t lock; ptw32_mcs_local_node_t proxynode; }; struct pthread_barrierattr_t_ { int pshared; }; struct pthread_key_t_ { DWORD key; void (PTW32_CDECL *destructor) (void *); ptw32_mcs_lock_t keyLock; void *threads; }; typedef struct ThreadParms ThreadParms; struct ThreadParms { pthread_t tid; void *(PTW32_CDECL *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; }; typedef struct ThreadKeyAssoc ThreadKeyAssoc; 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 the lock resources persist * until both the key is deleted and the thread has called the * destructor. The two-lock arrangement allows those resources * to be freed as soon as either thread or key is concluded. * * To avoid deadlock, whenever both locks are required both the * key and thread locks are acquired consistently in the order * "key lock then thread lock". An exception to this exists * when a thread calls the destructors, however, this is done * carefully (but inelegantly) 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 associations 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; }; #if defined(__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 laid 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 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 *)(size_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 unsigned __int64 ptw32_threadSeqNumber; extern int ptw32_concurrency; extern int ptw32_features; extern ptw32_mcs_lock_t ptw32_thread_reuse_lock; extern ptw32_mcs_lock_t ptw32_mutex_test_init_lock; extern ptw32_mcs_lock_t ptw32_cond_list_lock; extern ptw32_mcs_lock_t ptw32_cond_test_init_lock; extern ptw32_mcs_lock_t ptw32_rwlock_test_init_lock; extern ptw32_mcs_lock_t ptw32_spinlock_test_init_lock; #if defined(_UWIN) extern int pthread_count; #endif #if defined(__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); int ptw32_robust_mutex_inherit(pthread_mutex_t * mutex); void ptw32_robust_mutex_add(pthread_mutex_t* mutex, pthread_t self); void ptw32_robust_mutex_remove(pthread_mutex_t* mutex, ptw32_thread_t* otp); 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 (__MINGW64__) || defined(__MINGW32__)) || (defined(__MSVCRT__) && ! defined(__DMC__)) 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); int ptw32_mcs_lock_try_acquire (ptw32_mcs_lock_t * lock, ptw32_mcs_local_node_t * node); void ptw32_mcs_lock_release (ptw32_mcs_local_node_t * node); void ptw32_mcs_node_transfer (ptw32_mcs_local_node_t * new_node, ptw32_mcs_local_node_t * old_node); #if defined(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 */ #if defined(NEED_CALLOC) #define calloc(n, s) ptw32_calloc(n, s) void *ptw32_calloc (size_t n, size_t s); #endif /* Declared in private.c */ #if defined(_MSC_VER) /* * Ignore the warning: * "C++ exception specification ignored except to indicate that * the function is not __declspec(nothrow)." */ #pragma warning(disable:4290) #endif void ptw32_throw (DWORD exception) #if defined(__CLEANUP_CXX) throw(ptw32_exception_cancel,ptw32_exception_exit) #endif ; #if defined(__cplusplus) } #endif /* __cplusplus */ #if defined(_UWIN_) # if defined(_MT) # if defined(__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); # if defined(__cplusplus) } # endif # endif #else # include # endif /* * Use intrinsic versions wherever possible. VC will do this * automatically where possible and GCC define these if available: * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 * * The full set of Interlocked intrinsics in GCC are (check versions): * type __sync_fetch_and_add (type *ptr, type value, ...) * type __sync_fetch_and_sub (type *ptr, type value, ...) * type __sync_fetch_and_or (type *ptr, type value, ...) * type __sync_fetch_and_and (type *ptr, type value, ...) * type __sync_fetch_and_xor (type *ptr, type value, ...) * type __sync_fetch_and_nand (type *ptr, type value, ...) * type __sync_add_and_fetch (type *ptr, type value, ...) * type __sync_sub_and_fetch (type *ptr, type value, ...) * type __sync_or_and_fetch (type *ptr, type value, ...) * type __sync_and_and_fetch (type *ptr, type value, ...) * type __sync_xor_and_fetch (type *ptr, type value, ...) * type __sync_nand_and_fetch (type *ptr, type value, ...) * bool __sync_bool_compare_and_swap (type *ptr, type oldval type newval, ...) * type __sync_val_compare_and_swap (type *ptr, type oldval type newval, ...) * __sync_synchronize (...) // Full memory barrier * type __sync_lock_test_and_set (type *ptr, type value, ...) // Acquire barrier * void __sync_lock_release (type *ptr, ...) // Release barrier * * These are all overloaded and take 1,2,4,8 byte scalar or pointer types. * * The above aren't available in Mingw32 as of gcc 4.5.2 so define our own. */ #if defined(__GNUC__) # if defined(_WIN64) # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_64(location, value, comparand) \ ({ \ __typeof (value) _result; \ __asm__ __volatile__ \ ( \ "lock\n\t" \ "cmpxchgq %2,(%1)" \ :"=a" (_result) \ :"r" (location), "r" (value), "a" (comparand) \ :"memory", "cc"); \ _result; \ }) # define PTW32_INTERLOCKED_EXCHANGE_64(location, value) \ ({ \ __typeof (value) _result; \ __asm__ __volatile__ \ ( \ "xchgq %0,(%1)" \ :"=r" (_result) \ :"r" (location), "0" (value) \ :"memory", "cc"); \ _result; \ }) # define PTW32_INTERLOCKED_EXCHANGE_ADD_64(location, value) \ ({ \ __typeof (value) _result; \ __asm__ __volatile__ \ ( \ "lock\n\t" \ "xaddq %0,(%1)" \ :"=r" (_result) \ :"r" (location), "0" (value) \ :"memory", "cc"); \ _result; \ }) # define PTW32_INTERLOCKED_INCREMENT_64(location) \ ({ \ PTW32_INTERLOCKED_LONG _temp = 1; \ __asm__ __volatile__ \ ( \ "lock\n\t" \ "xaddq %0,(%1)" \ :"+r" (_temp) \ :"r" (location) \ :"memory", "cc"); \ ++_temp; \ }) # define PTW32_INTERLOCKED_DECREMENT_64(location) \ ({ \ PTW32_INTERLOCKED_LONG _temp = -1; \ __asm__ __volatile__ \ ( \ "lock\n\t" \ "xaddq %2,(%1)" \ :"+r" (_temp) \ :"r" (location) \ :"memory", "cc"); \ --_temp; \ }) #endif # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_LONG(location, value, comparand) \ ({ \ __typeof (value) _result; \ __asm__ __volatile__ \ ( \ "lock\n\t" \ "cmpxchgl %2,(%1)" \ :"=a" (_result) \ :"r" (location), "r" (value), "a" (comparand) \ :"memory", "cc"); \ _result; \ }) # define PTW32_INTERLOCKED_EXCHANGE_LONG(location, value) \ ({ \ __typeof (value) _result; \ __asm__ __volatile__ \ ( \ "xchgl %0,(%1)" \ :"=r" (_result) \ :"r" (location), "0" (value) \ :"memory", "cc"); \ _result; \ }) # define PTW32_INTERLOCKED_EXCHANGE_ADD_LONG(location, value) \ ({ \ __typeof (value) _result; \ __asm__ __volatile__ \ ( \ "lock\n\t" \ "xaddl %0,(%1)" \ :"=r" (_result) \ :"r" (location), "0" (value) \ :"memory", "cc"); \ _result; \ }) # define PTW32_INTERLOCKED_INCREMENT_LONG(location) \ ({ \ PTW32_INTERLOCKED_LONG _temp = 1; \ __asm__ __volatile__ \ ( \ "lock\n\t" \ "xaddl %0,(%1)" \ :"+r" (_temp) \ :"r" (location) \ :"memory", "cc"); \ ++_temp; \ }) # define PTW32_INTERLOCKED_DECREMENT_LONG(location) \ ({ \ PTW32_INTERLOCKED_LONG _temp = -1; \ __asm__ __volatile__ \ ( \ "lock\n\t" \ "xaddl %0,(%1)" \ :"+r" (_temp) \ :"r" (location) \ :"memory", "cc"); \ --_temp; \ }) # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_PTR(location, value, comparand) \ PTW32_INTERLOCKED_COMPARE_EXCHANGE_SIZE((PTW32_INTERLOCKED_SIZEPTR)location, \ (PTW32_INTERLOCKED_SIZE)value, \ (PTW32_INTERLOCKED_SIZE)comparand) # define PTW32_INTERLOCKED_EXCHANGE_PTR(location, value) \ PTW32_INTERLOCKED_EXCHANGE_SIZE((PTW32_INTERLOCKED_SIZEPTR)location, \ (PTW32_INTERLOCKED_SIZE)value) #else # if defined(_WIN64) # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_64 InterlockedCompareExchange64 # define PTW32_INTERLOCKED_EXCHANGE_64 InterlockedExchange64 # define PTW32_INTERLOCKED_EXCHANGE_ADD_64 InterlockedExchangeAdd64 # define PTW32_INTERLOCKED_INCREMENT_64 InterlockedIncrement64 # define PTW32_INTERLOCKED_DECREMENT_64 InterlockedDecrement64 # endif # if defined(_MSC_VER) && _MSC_VER < 1300 && !defined(_WIN64) /* MSVC 6 */ # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_LONG(location, value, comparand) \ ((LONG)InterlockedCompareExchange((PVOID *)(location), (PVOID)(value), (PVOID)(comparand))) # else # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_LONG InterlockedCompareExchange # endif # define PTW32_INTERLOCKED_EXCHANGE_LONG InterlockedExchange # define PTW32_INTERLOCKED_EXCHANGE_ADD_LONG InterlockedExchangeAdd # define PTW32_INTERLOCKED_INCREMENT_LONG InterlockedIncrement # define PTW32_INTERLOCKED_DECREMENT_LONG InterlockedDecrement # if defined(_MSC_VER) && _MSC_VER < 1300 && !defined(_WIN64) /* MSVC 6 */ # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_PTR InterlockedCompareExchange # define PTW32_INTERLOCKED_EXCHANGE_PTR(location, value) \ ((PVOID)InterlockedExchange((LPLONG)(location), (LONG)(value))) # else # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_PTR InterlockedCompareExchangePointer # define PTW32_INTERLOCKED_EXCHANGE_PTR InterlockedExchangePointer # endif #endif #if defined(_WIN64) # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_SIZE PTW32_INTERLOCKED_COMPARE_EXCHANGE_64 # define PTW32_INTERLOCKED_EXCHANGE_SIZE PTW32_INTERLOCKED_EXCHANGE_64 # define PTW32_INTERLOCKED_EXCHANGE_ADD_SIZE PTW32_INTERLOCKED_EXCHANGE_ADD_64 # define PTW32_INTERLOCKED_INCREMENT_SIZE PTW32_INTERLOCKED_INCREMENT_64 # define PTW32_INTERLOCKED_DECREMENT_SIZE PTW32_INTERLOCKED_DECREMENT_64 #else # define PTW32_INTERLOCKED_COMPARE_EXCHANGE_SIZE PTW32_INTERLOCKED_COMPARE_EXCHANGE_LONG # define PTW32_INTERLOCKED_EXCHANGE_SIZE PTW32_INTERLOCKED_EXCHANGE_LONG # define PTW32_INTERLOCKED_EXCHANGE_ADD_SIZE PTW32_INTERLOCKED_EXCHANGE_ADD_LONG # define PTW32_INTERLOCKED_INCREMENT_SIZE PTW32_INTERLOCKED_INCREMENT_LONG # define PTW32_INTERLOCKED_DECREMENT_SIZE PTW32_INTERLOCKED_DECREMENT_LONG #endif #if 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 /* NEED_CREATETHREAD */ #endif /* _IMPLEMENT_H */