Spaces:
Runtime error
Runtime error
File size: 5,295 Bytes
83418c6 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 |
/*
* Microsoft COM initialization routines
* Copyright (c) 1999-2011 Ross Bencina, Dmitry Kostjuchenko
*
* Based on the Open Source API proposed by Ross Bencina
* Copyright (c) 1999-2011 Ross Bencina, Phil Burk
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* The text above constitutes the entire PortAudio license; however,
* the PortAudio community also makes the following non-binding requests:
*
* Any person wishing to distribute modifications to the Software is
* requested to send the modifications to the original developer so that
* they can be incorporated into the canonical version. It is also
* requested that these non-binding requests be included along with the
* license above.
*/
/** @file
@ingroup win_src
@brief Microsoft COM initialization routines.
*/
#include <windows.h>
#include <objbase.h>
#include "portaudio.h"
#include "pa_util.h"
#include "pa_debugprint.h"
#include "pa_win_coinitialize.h"
#if (defined(WIN32) && (defined(_MSC_VER) && (_MSC_VER >= 1200))) && !defined(_WIN32_WCE) && !(defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)) /* MSC version 6 and above */
#pragma comment( lib, "ole32.lib" )
#endif
/* use some special bit patterns here to try to guard against uninitialized memory errors */
#define PAWINUTIL_COM_INITIALIZED (0xb38f)
#define PAWINUTIL_COM_NOT_INITIALIZED (0xf1cd)
PaError PaWinUtil_CoInitialize( PaHostApiTypeId hostApiType, PaWinUtilComInitializationResult *comInitializationResult )
{
HRESULT hr;
comInitializationResult->state = PAWINUTIL_COM_NOT_INITIALIZED;
/*
If COM is already initialized CoInitialize will either return
FALSE, or RPC_E_CHANGED_MODE if it was initialised in a different
threading mode. In either case we shouldn't consider it an error
but we need to be careful to not call CoUninitialize() if
RPC_E_CHANGED_MODE was returned.
*/
#if !defined(WINAPI_FAMILY) || (WINAPI_FAMILY != WINAPI_FAMILY_APP)
hr = CoInitialize(0); /* use legacy-safe equivalent to CoInitializeEx(NULL, COINIT_APARTMENTTHREADED) */
#else
hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
#endif
if( FAILED(hr) && hr != RPC_E_CHANGED_MODE )
{
PA_DEBUG(("CoInitialize(0) failed. hr=%d\n", hr));
if( hr == E_OUTOFMEMORY )
return paInsufficientMemory;
{
char *lpMsgBuf;
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
hr,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &lpMsgBuf,
0,
NULL
);
PaUtil_SetLastHostErrorInfo( hostApiType, hr, lpMsgBuf );
LocalFree( lpMsgBuf );
}
return paUnanticipatedHostError;
}
if( hr != RPC_E_CHANGED_MODE )
{
comInitializationResult->state = PAWINUTIL_COM_INITIALIZED;
/*
Memorize calling thread id and report warning on Uninitialize if
calling thread is different as CoInitialize must match CoUninitialize
in the same thread.
*/
comInitializationResult->initializingThreadId = GetCurrentThreadId();
}
return paNoError;
}
void PaWinUtil_CoUninitialize( PaHostApiTypeId hostApiType, PaWinUtilComInitializationResult *comInitializationResult )
{
if( comInitializationResult->state != PAWINUTIL_COM_NOT_INITIALIZED
&& comInitializationResult->state != PAWINUTIL_COM_INITIALIZED ){
PA_DEBUG(("ERROR: PaWinUtil_CoUninitialize called without calling PaWinUtil_CoInitialize\n"));
}
if( comInitializationResult->state == PAWINUTIL_COM_INITIALIZED )
{
DWORD currentThreadId = GetCurrentThreadId();
if( comInitializationResult->initializingThreadId != currentThreadId )
{
PA_DEBUG(("ERROR: failed PaWinUtil_CoUninitialize calling thread[%lu] does not match initializing thread[%lu]\n",
currentThreadId, comInitializationResult->initializingThreadId));
}
else
{
CoUninitialize();
comInitializationResult->state = PAWINUTIL_COM_NOT_INITIALIZED;
}
}
}
|