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/**************************************************************************
*
* Copyright 2009 VMware, Inc.
* All Rights Reserved.
*
* 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, sub license, 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 (including the
* next paragraph) 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
#include <windows.h>
#include "pipe/p_compiler.h"
#include "util/u_memory.h"
#include "stw_tls.h"
static DWORD tlsIndex = TLS_OUT_OF_INDEXES;
boolean
stw_tls_init(void)
{
tlsIndex = TlsAlloc();
if (tlsIndex == TLS_OUT_OF_INDEXES) {
return FALSE;
}
return TRUE;
}
static INLINE struct stw_tls_data *
stw_tls_data_create()
{
struct stw_tls_data *data;
data = CALLOC_STRUCT(stw_tls_data);
if (!data)
goto no_data;
data->hCallWndProcHook = SetWindowsHookEx(WH_CALLWNDPROC,
stw_call_window_proc,
NULL,
GetCurrentThreadId());
if(data->hCallWndProcHook == NULL)
goto no_hook;
TlsSetValue(tlsIndex, data);
return data;
no_hook:
FREE(data);
no_data:
return NULL;
}
boolean
stw_tls_init_thread(void)
{
struct stw_tls_data *data;
if (tlsIndex == TLS_OUT_OF_INDEXES) {
return FALSE;
}
data = stw_tls_data_create();
if(!data)
return FALSE;
return TRUE;
}
void
stw_tls_cleanup_thread(void)
{
struct stw_tls_data *data;
if (tlsIndex == TLS_OUT_OF_INDEXES) {
return;
}
data = (struct stw_tls_data *) TlsGetValue(tlsIndex);
if(data) {
TlsSetValue(tlsIndex, NULL);
if(data->hCallWndProcHook) {
UnhookWindowsHookEx(data->hCallWndProcHook);
data->hCallWndProcHook = NULL;
}
FREE(data);
}
}
void
stw_tls_cleanup(void)
{
if (tlsIndex != TLS_OUT_OF_INDEXES) {
TlsFree(tlsIndex);
tlsIndex = TLS_OUT_OF_INDEXES;
}
}
struct stw_tls_data *
stw_tls_get_data(void)
{
struct stw_tls_data *data;
if (tlsIndex == TLS_OUT_OF_INDEXES) {
return NULL;
}
data = (struct stw_tls_data *) TlsGetValue(tlsIndex);
if(!data) {
/* DllMain is called with DLL_THREAD_ATTACH only by threads created after
* the DLL is loaded by the process */
data = stw_tls_data_create();
if(!data)
return NULL;
}
return data;
}
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