1 /*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 #include "ThreadInfo.h"
17 #include "cutils/threads.h"
18 
19 thread_store_t s_tls = THREAD_STORE_INITIALIZER;
20 
sDefaultTlsDestructorCallback(void * ptr)21 static bool sDefaultTlsDestructorCallback(void* ptr) { return true; }
22 static bool (*sTlsDestructorCallback)(void*) = sDefaultTlsDestructorCallback;
23 
tlsDestruct(void * ptr)24 static void tlsDestruct(void *ptr)
25 {
26     sTlsDestructorCallback(ptr);
27     if (ptr) {
28         EGLThreadInfo *ti = (EGLThreadInfo *)ptr;
29         delete ti->hostConn;
30         delete ti;
31 #ifdef __ANDROID__
32         ((void **)__get_tls())[TLS_SLOT_OPENGL] = NULL;
33 #endif
34     }
35 }
36 
setTlsDestructor(tlsDtorCallback func)37 void setTlsDestructor(tlsDtorCallback func) {
38     sTlsDestructorCallback = func;
39 }
40 
goldfish_get_egl_tls()41 EGLThreadInfo *goldfish_get_egl_tls()
42 {
43     EGLThreadInfo* ti = (EGLThreadInfo*)thread_store_get(&s_tls);
44 
45     if (ti) return ti;
46 
47     ti = new EGLThreadInfo();
48     thread_store_set(&s_tls, ti, tlsDestruct);
49 
50     return ti;
51 }
52