| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| * |
| *************************************************************/ |
| |
| |
| |
| #include "system.h" |
| |
| #include <osl/conditn.h> |
| #include <osl/diagnose.h> |
| #include <osl/time.h> |
| |
| /* |
| under WIN32, we use the void* oslCondition |
| as a WIN32 HANDLE (which is also a 32-bit value) |
| */ |
| |
| /*****************************************************************************/ |
| /* osl_createCondition */ |
| /*****************************************************************************/ |
| oslCondition SAL_CALL osl_createCondition(void) |
| { |
| oslCondition Condition; |
| |
| Condition= (oslCondition)CreateEvent(0, /* no security */ |
| sal_True, /* manual reset */ |
| sal_False, /* initial state not signaled */ |
| 0); /* automatic name */ |
| |
| return Condition; |
| |
| } |
| |
| /*****************************************************************************/ |
| /* osl_destroyCondition */ |
| /*****************************************************************************/ |
| void SAL_CALL osl_destroyCondition(oslCondition Condition) |
| { |
| if(Condition) |
| { |
| OSL_VERIFY(CloseHandle(Condition)); |
| } |
| } |
| |
| /*****************************************************************************/ |
| /* osl_setCondition */ |
| /*****************************************************************************/ |
| sal_Bool SAL_CALL osl_setCondition(oslCondition Condition) |
| { |
| OSL_ASSERT(Condition); |
| |
| return (sal_Bool)(SetEvent((HANDLE)Condition) != FALSE); |
| } |
| |
| /*****************************************************************************/ |
| /* osl_resetCondition */ |
| /*****************************************************************************/ |
| sal_Bool SAL_CALL osl_resetCondition(oslCondition Condition) |
| { |
| OSL_ASSERT(Condition); |
| |
| return (sal_Bool)(ResetEvent((HANDLE)Condition) != FALSE); |
| } |
| |
| /*****************************************************************************/ |
| /* osl_waitCondition */ |
| /*****************************************************************************/ |
| oslConditionResult SAL_CALL osl_waitCondition(oslCondition Condition, |
| const TimeValue* pTimeout) |
| { |
| DWORD timeout; |
| |
| OSL_ASSERT(Condition); |
| |
| if (pTimeout) |
| timeout = pTimeout->Seconds * 1000 + pTimeout->Nanosec / 1000000L; |
| else |
| timeout = INFINITE; |
| |
| /* It's necessary to process SendMessage calls to the current thread to give other threads |
| access to COM objects instatiated in this thread */ |
| |
| while ( 1 ) |
| { |
| /* Only wake up if a SendMessage call to the threads message loop is detected */ |
| switch( MsgWaitForMultipleObjects( 1, (HANDLE *)(&Condition), FALSE, timeout, QS_SENDMESSAGE ) ) |
| { |
| case WAIT_OBJECT_0 + 1: |
| { |
| MSG msg; |
| |
| /* We Must not dispatch the message. PM_NOREMOVE leaves the message queue untouched |
| but dispatches SendMessage calls automatically */ |
| |
| PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ); |
| } |
| break; |
| |
| case WAIT_OBJECT_0: |
| return (osl_cond_result_ok); |
| |
| case WAIT_TIMEOUT: |
| return (osl_cond_result_timeout); |
| |
| default: |
| return (osl_cond_result_error); |
| } |
| } |
| } |
| |
| /*****************************************************************************/ |
| /* osl_checkCondition */ |
| /*****************************************************************************/ |
| sal_Bool SAL_CALL osl_checkCondition(oslCondition Condition) |
| { |
| OSL_ASSERT(Condition); |
| |
| return (sal_Bool)(WaitForSingleObject((HANDLE)Condition, 0) == WAIT_OBJECT_0); |
| } |
| |