Sweden-Number/dlls/windows.media.speech/event_handlers.c

109 lines
3.3 KiB
C

/* WinRT Windows.Media.SpeechRecognition implementation
*
* Copyright 2022 Bernhard Kölbl
*
* 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 2.1 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; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "private.h"
static CRITICAL_SECTION handlers_cs;
static CRITICAL_SECTION_DEBUG handlers_cs_debug =
{
0, 0, &handlers_cs,
{ &handlers_cs_debug.ProcessLocksList, &handlers_cs_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": handlers_cs") }
};
static CRITICAL_SECTION handlers_cs = { &handlers_cs_debug, -1, 0, 0, 0, 0 };
static EventRegistrationToken next_token = {.value = 1};
struct typed_event_handler_entry
{
struct list entry;
EventRegistrationToken token;
ITypedEventHandler_IInspectable_IInspectable *handler;
};
HRESULT typed_event_handlers_append( struct list *list, ITypedEventHandler_IInspectable_IInspectable *handler, EventRegistrationToken *token )
{
struct typed_event_handler_entry *entry;
if (!(entry = calloc(1, sizeof(*entry)))) return E_OUTOFMEMORY;
ITypedEventHandler_IInspectable_IInspectable_AddRef((entry->handler = handler));
EnterCriticalSection(&handlers_cs);
*token = entry->token = next_token;
next_token.value++;
list_add_tail(list, &entry->entry);
LeaveCriticalSection(&handlers_cs);
return S_OK;
}
HRESULT typed_event_handlers_remove( struct list *list, EventRegistrationToken *token )
{
struct typed_event_handler_entry *entry;
BOOL found = FALSE;
EnterCriticalSection(&handlers_cs);
LIST_FOR_EACH_ENTRY(entry, list, struct typed_event_handler_entry, entry)
if ((found = !memcmp(&entry->token, token, sizeof(*token)))) break;
if (found) list_remove(&entry->entry);
LeaveCriticalSection(&handlers_cs);
if (found)
{
ITypedEventHandler_IInspectable_IInspectable_Release(entry->handler);
free(entry);
}
return S_OK;
}
HRESULT typed_event_handlers_notify( struct list *list, IInspectable *sender, IInspectable *args )
{
struct typed_event_handler_entry *entry;
EnterCriticalSection(&handlers_cs);
LIST_FOR_EACH_ENTRY(entry, list, struct typed_event_handler_entry, entry)
ITypedEventHandler_IInspectable_IInspectable_Invoke(entry->handler, sender, args);
LeaveCriticalSection(&handlers_cs);
return S_OK;
}
HRESULT typed_event_handlers_clear( struct list* list )
{
struct typed_event_handler_entry *entry, *entry_cursor2;
EnterCriticalSection(&handlers_cs);
LIST_FOR_EACH_ENTRY_SAFE(entry, entry_cursor2, list, struct typed_event_handler_entry, entry)
{
list_remove(&entry->entry);
free(entry);
}
LeaveCriticalSection(&handlers_cs);
return S_OK;
}