1// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#include "InitializeParseContext.h"
16
17#include "osinclude.h"
18
19OS_TLSIndex GlobalParseContextIndex = OS_INVALID_TLS_INDEX;
20
21bool InitializeParseContextIndex()
22{
23 assert(GlobalParseContextIndex == OS_INVALID_TLS_INDEX);
24
25 GlobalParseContextIndex = OS_AllocTLSIndex();
26 return GlobalParseContextIndex != OS_INVALID_TLS_INDEX;
27}
28
29void FreeParseContextIndex()
30{
31 assert(GlobalParseContextIndex != OS_INVALID_TLS_INDEX);
32
33 OS_FreeTLSIndex(GlobalParseContextIndex);
34 GlobalParseContextIndex = OS_INVALID_TLS_INDEX;
35}
36
37void SetGlobalParseContext(TParseContext* context)
38{
39 assert(GlobalParseContextIndex != OS_INVALID_TLS_INDEX);
40 OS_SetTLSValue(GlobalParseContextIndex, context);
41}
42
43TParseContext* GetGlobalParseContext()
44{
45 assert(GlobalParseContextIndex != OS_INVALID_TLS_INDEX);
46 return static_cast<TParseContext*>(OS_GetTLSValue(GlobalParseContextIndex));
47}
48
49