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      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 #ifndef _THREAD_INFO_H
     17 #define _THREAD_INFO_H
     18 
     19 #include "HostConnection.h"
     20 #include <pthread.h>
     21 
     22 #include <bionic_tls.h>
     23 struct EGLContext_t;
     24 struct HostConnection;
     25 
     26 struct EGLThreadInfo
     27 {
     28     EGLThreadInfo() : currentContext(NULL), hostConn(NULL), eglError(EGL_SUCCESS) { }
     29 
     30     EGLContext_t *currentContext;
     31     HostConnection *hostConn;
     32     int           eglError;
     33 };
     34 
     35 
     36 typedef bool (*tlsDtorCallback)(void*);
     37 void setTlsDestructor(tlsDtorCallback);
     38 
     39 extern "C" __attribute__((visibility("default"))) EGLThreadInfo *goldfish_get_egl_tls();
     40 
     41 inline EGLThreadInfo* getEGLThreadInfo() {
     42 #ifdef __ANDROID__
     43     EGLThreadInfo *tInfo =
     44         (EGLThreadInfo *)(((uintptr_t *)__get_tls())[TLS_SLOT_OPENGL]);
     45     if (!tInfo) {
     46         tInfo = goldfish_get_egl_tls();
     47         ((uintptr_t *)__get_tls())[TLS_SLOT_OPENGL] = (uintptr_t)tInfo;
     48     }
     49     return tInfo;
     50 #else
     51     return goldfish_get_egl_tls();
     52 #endif
     53 }
     54 
     55 #endif // of _THREAD_INFO_H
     56