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* WinPR: Windows Portable Runtime
* Synchronization Functions
*
* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
* Copyright 2014 Thincast Technologies GmbH
* Copyright 2014 Norbert Federa <norbert.federa@thincast.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef WINPR_SYNCH_H
#define WINPR_SYNCH_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/winpr.h>
#include <winpr/wtypes.h>
#include <winpr/error.h>
#include <winpr/handle.h>
#include <winpr/nt.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _WIN32
/* Mutex */
WINPR_API HANDLE CreateMutexA(LPSECURITY_ATTRIBUTES lpMutexAttributes, BOOL bInitialOwner, LPCSTR lpName);
WINPR_API HANDLE CreateMutexW(LPSECURITY_ATTRIBUTES lpMutexAttributes, BOOL bInitialOwner, LPCWSTR lpName);
WINPR_API HANDLE CreateMutexExA(LPSECURITY_ATTRIBUTES lpMutexAttributes, LPCTSTR lpName, DWORD dwFlags, DWORD dwDesiredAccess);
WINPR_API HANDLE CreateMutexExW(LPSECURITY_ATTRIBUTES lpMutexAttributes, LPCWSTR lpName, DWORD dwFlags, DWORD dwDesiredAccess);
WINPR_API HANDLE OpenMutexA(DWORD dwDesiredAccess, BOOL bInheritHandle,LPCSTR lpName);
WINPR_API HANDLE OpenMutexW(DWORD dwDesiredAccess, BOOL bInheritHandle,LPCWSTR lpName);
WINPR_API BOOL ReleaseMutex(HANDLE hMutex);
#ifdef UNICODE
#define CreateMutex CreateMutexW
#define CreateMutexEx CreateMutexExW
#define OpenMutex OpenMutexW
#else
#define CreateMutex CreateMutexA
#define CreateMutexEx CreateMutexExA
#define OpenMutex OpenMutexA
#endif
/* Semaphore */
WINPR_API HANDLE CreateSemaphoreA(LPSECURITY_ATTRIBUTES lpSemaphoreAttributes, LONG lInitialCount, LONG lMaximumCount, LPCSTR lpName);
WINPR_API HANDLE CreateSemaphoreW(LPSECURITY_ATTRIBUTES lpSemaphoreAttributes, LONG lInitialCount, LONG lMaximumCount, LPCWSTR lpName);
WINPR_API HANDLE OpenSemaphoreA(DWORD dwDesiredAccess, BOOL bInheritHandle, LPCSTR lpName);
WINPR_API HANDLE OpenSemaphoreW(DWORD dwDesiredAccess, BOOL bInheritHandle, LPCWSTR lpName);
#ifdef UNICODE
#define CreateSemaphore CreateSemaphoreW
#define OpenSemaphore OpenSemaphoreW
#else
#define CreateSemaphore CreateSemaphoreA
#define OpenSemaphore OpenSemaphoreA
#endif
WINPR_API BOOL ReleaseSemaphore(HANDLE hSemaphore, LONG lReleaseCount, LPLONG lpPreviousCount);
/* Event */
WINPR_API HANDLE CreateEventA(LPSECURITY_ATTRIBUTES lpEventAttributes, BOOL bManualReset, BOOL bInitialState, LPCSTR lpName);
WINPR_API HANDLE CreateEventW(LPSECURITY_ATTRIBUTES lpEventAttributes, BOOL bManualReset, BOOL bInitialState, LPCWSTR lpName);
WINPR_API HANDLE CreateEventExA(LPSECURITY_ATTRIBUTES lpEventAttributes, LPCSTR lpName, DWORD dwFlags, DWORD dwDesiredAccess);
WINPR_API HANDLE CreateEventExW(LPSECURITY_ATTRIBUTES lpEventAttributes, LPCWSTR lpName, DWORD dwFlags, DWORD dwDesiredAccess);
WINPR_API HANDLE OpenEventA(DWORD dwDesiredAccess, BOOL bInheritHandle, LPCSTR lpName);
WINPR_API HANDLE OpenEventW(DWORD dwDesiredAccess, BOOL bInheritHandle, LPCWSTR lpName);
WINPR_API BOOL SetEvent(HANDLE hEvent);
WINPR_API BOOL ResetEvent(HANDLE hEvent);
#ifdef UNICODE
#define CreateEvent CreateEventW
#define CreateEventEx CreateEventExW
#define OpenEvent OpenEventW
#else
#define CreateEvent CreateEventA
#define CreateEventEx CreateEventExA
#define OpenEvent OpenEventA
#endif
/* Slim Reader/Writer (SRW) Lock */
typedef PVOID RTL_SRWLOCK;
typedef RTL_SRWLOCK SRWLOCK, *PSRWLOCK;
WINPR_API VOID InitializeSRWLock(PSRWLOCK SRWLock);
WINPR_API VOID AcquireSRWLockExclusive(PSRWLOCK SRWLock);
WINPR_API VOID AcquireSRWLockShared(PSRWLOCK SRWLock);
WINPR_API BOOL TryAcquireSRWLockExclusive(PSRWLOCK SRWLock);
WINPR_API BOOL TryAcquireSRWLockShared(PSRWLOCK SRWLock);
WINPR_API VOID ReleaseSRWLockExclusive(PSRWLOCK SRWLock);
WINPR_API VOID ReleaseSRWLockShared(PSRWLOCK SRWLock);
/* Condition Variable */
typedef PVOID RTL_CONDITION_VARIABLE;
typedef RTL_CONDITION_VARIABLE CONDITION_VARIABLE, *PCONDITION_VARIABLE;
/* Critical Section */
#if defined(__linux__)
/**
* Linux NPTL thread synchronization primitives are implemented using
* the futex system calls ... we can't beat futex with a spin loop.
*/
#define WINPR_CRITICAL_SECTION_DISABLE_SPINCOUNT
#endif
typedef struct _RTL_CRITICAL_SECTION
{
PVOID DebugInfo;
LONG LockCount;
LONG RecursionCount;
HANDLE OwningThread;
HANDLE LockSemaphore;
ULONG_PTR SpinCount;
} RTL_CRITICAL_SECTION, *PRTL_CRITICAL_SECTION;
typedef RTL_CRITICAL_SECTION CRITICAL_SECTION;
typedef PRTL_CRITICAL_SECTION PCRITICAL_SECTION;
typedef PRTL_CRITICAL_SECTION LPCRITICAL_SECTION;
WINPR_API VOID InitializeCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
WINPR_API BOOL InitializeCriticalSectionEx(LPCRITICAL_SECTION lpCriticalSection, DWORD dwSpinCount, DWORD Flags);
WINPR_API BOOL InitializeCriticalSectionAndSpinCount(LPCRITICAL_SECTION lpCriticalSection, DWORD dwSpinCount);
WINPR_API DWORD SetCriticalSectionSpinCount(LPCRITICAL_SECTION lpCriticalSection, DWORD dwSpinCount);
WINPR_API VOID EnterCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
WINPR_API BOOL TryEnterCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
WINPR_API VOID LeaveCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
WINPR_API VOID DeleteCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
/* Sleep */
WINPR_API VOID Sleep(DWORD dwMilliseconds);
WINPR_API DWORD SleepEx(DWORD dwMilliseconds, BOOL bAlertable);
/* Address */
WINPR_API VOID WakeByAddressAll(PVOID Address);
WINPR_API VOID WakeByAddressSingle(PVOID Address);
WINPR_API BOOL WaitOnAddress(VOID volatile *Address, PVOID CompareAddress, SIZE_T AddressSize, DWORD dwMilliseconds);
/* Wait */
#define INFINITE 0xFFFFFFFF
#define WAIT_OBJECT_0 0x00000000L
#define WAIT_ABANDONED 0x00000080L
#ifndef WAIT_TIMEOUT
#define WAIT_TIMEOUT 0x00000102L
#endif
#define WAIT_FAILED ((DWORD) 0xFFFFFFFF)
#define MAXIMUM_WAIT_OBJECTS 64
WINPR_API DWORD WaitForSingleObject(HANDLE hHandle, DWORD dwMilliseconds);
WINPR_API DWORD WaitForSingleObjectEx(HANDLE hHandle, DWORD dwMilliseconds, BOOL bAlertable);
WINPR_API DWORD WaitForMultipleObjects(DWORD nCount, const HANDLE* lpHandles, BOOL bWaitAll, DWORD dwMilliseconds);
WINPR_API DWORD WaitForMultipleObjectsEx(DWORD nCount, const HANDLE* lpHandles, BOOL bWaitAll, DWORD dwMilliseconds, BOOL bAlertable);
WINPR_API DWORD SignalObjectAndWait(HANDLE hObjectToSignal, HANDLE hObjectToWaitOn, DWORD dwMilliseconds, BOOL bAlertable);
/* Waitable Timer */
#define CREATE_WAITABLE_TIMER_MANUAL_RESET 0x00000001
typedef struct _REASON_CONTEXT
{
ULONG Version;
DWORD Flags;
union
{
struct
{
HMODULE LocalizedReasonModule;
ULONG LocalizedReasonId;
ULONG ReasonStringCount;
LPWSTR* ReasonStrings;
} Detailed;
LPWSTR SimpleReasonString;
} Reason;
} REASON_CONTEXT, *PREASON_CONTEXT;
typedef VOID (*PTIMERAPCROUTINE)(LPVOID lpArgToCompletionRoutine, DWORD dwTimerLowValue, DWORD dwTimerHighValue);
WINPR_API HANDLE CreateWaitableTimerA(LPSECURITY_ATTRIBUTES lpTimerAttributes, BOOL bManualReset, LPCSTR lpTimerName);
WINPR_API HANDLE CreateWaitableTimerW(LPSECURITY_ATTRIBUTES lpTimerAttributes, BOOL bManualReset, LPCWSTR lpTimerName);
WINPR_API HANDLE CreateWaitableTimerExA(LPSECURITY_ATTRIBUTES lpTimerAttributes, LPCSTR lpTimerName, DWORD dwFlags, DWORD dwDesiredAccess);
WINPR_API HANDLE CreateWaitableTimerExW(LPSECURITY_ATTRIBUTES lpTimerAttributes, LPCWSTR lpTimerName, DWORD dwFlags, DWORD dwDesiredAccess);
WINPR_API BOOL SetWaitableTimer(HANDLE hTimer, const LARGE_INTEGER* lpDueTime, LONG lPeriod,
PTIMERAPCROUTINE pfnCompletionRoutine, LPVOID lpArgToCompletionRoutine, BOOL fResume);
WINPR_API BOOL SetWaitableTimerEx(HANDLE hTimer, const LARGE_INTEGER* lpDueTime, LONG lPeriod,
PTIMERAPCROUTINE pfnCompletionRoutine, LPVOID lpArgToCompletionRoutine, PREASON_CONTEXT WakeContext, ULONG TolerableDelay);
WINPR_API HANDLE OpenWaitableTimerA(DWORD dwDesiredAccess, BOOL bInheritHandle, LPCSTR lpTimerName);
WINPR_API HANDLE OpenWaitableTimerW(DWORD dwDesiredAccess, BOOL bInheritHandle, LPCWSTR lpTimerName);
WINPR_API BOOL CancelWaitableTimer(HANDLE hTimer);
#ifdef UNICODE
#define CreateWaitableTimer CreateWaitableTimerW
#define CreateWaitableTimerEx CreateWaitableTimerExW
#define OpenWaitableTimer OpenWaitableTimerW
#else
#define CreateWaitableTimer CreateWaitableTimerA
#define CreateWaitableTimerEx CreateWaitableTimerExA
#define OpenWaitableTimer OpenWaitableTimerA
#endif
/**
* Timer-Queue Timer
*/
#define WT_EXECUTEDEFAULT 0x00000000
#define WT_EXECUTEINIOTHREAD 0x00000001
#define WT_EXECUTEINUITHREAD 0x00000002
#define WT_EXECUTEINWAITTHREAD 0x00000004
#define WT_EXECUTEONLYONCE 0x00000008
#define WT_EXECUTELONGFUNCTION 0x00000010
#define WT_EXECUTEINTIMERTHREAD 0x00000020
#define WT_EXECUTEINPERSISTENTIOTHREAD 0x00000040
#define WT_EXECUTEINPERSISTENTTHREAD 0x00000080
#define WT_TRANSFER_IMPERSONATION 0x00000100
typedef VOID (*WAITORTIMERCALLBACK)(PVOID lpParameter, BOOLEAN TimerOrWaitFired);
WINPR_API HANDLE CreateTimerQueue(void);
WINPR_API BOOL DeleteTimerQueue(HANDLE TimerQueue);
WINPR_API BOOL DeleteTimerQueueEx(HANDLE TimerQueue, HANDLE CompletionEvent);
WINPR_API BOOL CreateTimerQueueTimer(PHANDLE phNewTimer, HANDLE TimerQueue,
WAITORTIMERCALLBACK Callback, PVOID Parameter, DWORD DueTime, DWORD Period, ULONG Flags);
WINPR_API BOOL ChangeTimerQueueTimer(HANDLE TimerQueue, HANDLE Timer, ULONG DueTime, ULONG Period);
WINPR_API BOOL DeleteTimerQueueTimer(HANDLE TimerQueue, HANDLE Timer, HANDLE CompletionEvent);
#endif
#if (defined(_WIN32) && (_WIN32_WINNT < 0x0600))
#define InitializeCriticalSectionEx(lpCriticalSection, dwSpinCount, Flags) InitializeCriticalSectionAndSpinCount(lpCriticalSection, dwSpinCount)
#endif
#ifndef _RTL_RUN_ONCE_DEF
#define _RTL_RUN_ONCE_DEF
#define RTL_RUN_ONCE_INIT { 0 }
#define RTL_RUN_ONCE_CHECK_ONLY 0x00000001
#define RTL_RUN_ONCE_ASYNC 0x00000002
#define RTL_RUN_ONCE_INIT_FAILED 0x00000004
#define RTL_RUN_ONCE_CTX_RESERVED_BITS 2
typedef struct _RTL_RUN_ONCE
{
PVOID Ptr;
} RTL_RUN_ONCE, *PRTL_RUN_ONCE;
typedef ULONG CALLBACK RTL_RUN_ONCE_INIT_FN (PRTL_RUN_ONCE RunOnce, PVOID Parameter, PVOID* Context);
typedef RTL_RUN_ONCE_INIT_FN *PRTL_RUN_ONCE_INIT_FN;
#endif
#if (!defined(_WIN32)) || (defined(_WIN32) && (_WIN32_WINNT < 0x0600))
/* One-Time Initialization */
#define INIT_ONCE_STATIC_INIT RTL_RUN_ONCE_INIT
typedef RTL_RUN_ONCE INIT_ONCE;
typedef PRTL_RUN_ONCE PINIT_ONCE;
typedef PRTL_RUN_ONCE LPINIT_ONCE;
typedef BOOL (CALLBACK * PINIT_ONCE_FN)(PINIT_ONCE InitOnce, PVOID Parameter, PVOID* Context);
WINPR_API BOOL winpr_InitOnceBeginInitialize(LPINIT_ONCE lpInitOnce, DWORD dwFlags, PBOOL fPending, LPVOID* lpContext);
WINPR_API BOOL winpr_InitOnceComplete(LPINIT_ONCE lpInitOnce, DWORD dwFlags, LPVOID lpContext);
WINPR_API BOOL winpr_InitOnceExecuteOnce(PINIT_ONCE InitOnce, PINIT_ONCE_FN InitFn, PVOID Parameter, LPVOID* Context);
WINPR_API VOID winpr_InitOnceInitialize(PINIT_ONCE InitOnce);
#define InitOnceBeginInitialize winpr_InitOnceBeginInitialize
#define InitOnceComplete winpr_InitOnceComplete
#define InitOnceExecuteOnce winpr_InitOnceExecuteOnce
#define InitOnceInitialize winpr_InitOnceInitialize
#endif
/* Synchronization Barrier */
#if (!defined(_WIN32)) || (defined(_WIN32) && (_WIN32_WINNT < 0x0602) && !defined(_SYNCHAPI_H_))
#define WINPR_SYNCHRONIZATION_BARRIER 1
#endif
#ifdef WINPR_SYNCHRONIZATION_BARRIER
typedef struct _RTL_BARRIER
{
DWORD Reserved1;
DWORD Reserved2;
ULONG_PTR Reserved3[2];
DWORD Reserved4;
DWORD Reserved5;
} RTL_BARRIER, *PRTL_BARRIER;
typedef RTL_BARRIER SYNCHRONIZATION_BARRIER;
typedef PRTL_BARRIER PSYNCHRONIZATION_BARRIER;
typedef PRTL_BARRIER LPSYNCHRONIZATION_BARRIER;
#define SYNCHRONIZATION_BARRIER_FLAGS_SPIN_ONLY 0x01
#define SYNCHRONIZATION_BARRIER_FLAGS_BLOCK_ONLY 0x02
#define SYNCHRONIZATION_BARRIER_FLAGS_NO_DELETE 0x04
WINPR_API BOOL WINAPI winpr_InitializeSynchronizationBarrier(LPSYNCHRONIZATION_BARRIER lpBarrier, LONG lTotalThreads, LONG lSpinCount);
WINPR_API BOOL WINAPI winpr_EnterSynchronizationBarrier(LPSYNCHRONIZATION_BARRIER lpBarrier, DWORD dwFlags);
WINPR_API BOOL WINAPI winpr_DeleteSynchronizationBarrier(LPSYNCHRONIZATION_BARRIER lpBarrier);
#define InitializeSynchronizationBarrier winpr_InitializeSynchronizationBarrier
#define EnterSynchronizationBarrier winpr_EnterSynchronizationBarrier
#define DeleteSynchronizationBarrier winpr_DeleteSynchronizationBarrier
#endif
/* Extended API */
WINPR_API VOID USleep(DWORD dwMicroseconds);
WINPR_API HANDLE CreateFileDescriptorEventW(LPSECURITY_ATTRIBUTES lpEventAttributes,
BOOL bManualReset, BOOL bInitialState, int FileDescriptor, ULONG mode);
WINPR_API HANDLE CreateFileDescriptorEventA(LPSECURITY_ATTRIBUTES lpEventAttributes,
BOOL bManualReset, BOOL bInitialState, int FileDescriptor, ULONG mode);
WINPR_API HANDLE CreateWaitObjectEvent(LPSECURITY_ATTRIBUTES lpEventAttributes,
BOOL bManualReset, BOOL bInitialState, void* pObject);
#ifdef UNICODE
#define CreateFileDescriptorEvent CreateFileDescriptorEventW
#else
#define CreateFileDescriptorEvent CreateFileDescriptorEventA
#endif
WINPR_API int GetEventFileDescriptor(HANDLE hEvent);
WINPR_API int SetEventFileDescriptor(HANDLE hEvent, int FileDescriptor, ULONG mode);
WINPR_API void* GetEventWaitObject(HANDLE hEvent);
#ifdef __cplusplus
}
#endif
#endif /* WINPR_SYNCH_H */
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