| // |
| //Copyright (C) 2002-2005 3Dlabs Inc. Ltd. |
| //All rights reserved. |
| // |
| //Redistribution and use in source and binary forms, with or without |
| //modification, are permitted provided that the following conditions |
| //are met: |
| // |
| // Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // |
| // Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // |
| // Neither the name of 3Dlabs Inc. Ltd. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| //THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| //"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| //LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| //FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| //COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| //INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| //BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| //LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| //CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| //LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| //ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| //POSSIBILITY OF SUCH DAMAGE. |
| // |
| |
| // |
| // This file contains the Linux-specific functions |
| // |
| #include "../osinclude.h" |
| #include "../../../OGLCompilersDLL/InitializeDll.h" |
| |
| #include <pthread.h> |
| #include <semaphore.h> |
| #include <assert.h> |
| #include <errno.h> |
| #include <stdint.h> |
| |
| namespace glslang { |
| |
| // |
| // Thread cleanup |
| // |
| |
| // |
| // Wrapper for Linux call to DetachThread. This is required as pthread_cleanup_push() expects |
| // the cleanup routine to return void. |
| // |
| static void DetachThreadLinux(void *) |
| { |
| DetachThread(); |
| } |
| |
| |
| // |
| // Registers cleanup handler, sets cancel type and state, and executes the thread specific |
| // cleanup handler. This function will be called in the Standalone.cpp for regression |
| // testing. When OpenGL applications are run with the driver code, Linux OS does the |
| // thread cleanup. |
| // |
| void OS_CleanupThreadData(void) |
| { |
| #ifdef __ANDROID__ |
| DetachThreadLinux(NULL); |
| #else |
| int old_cancel_state, old_cancel_type; |
| void *cleanupArg = NULL; |
| |
| // |
| // Set thread cancel state and push cleanup handler. |
| // |
| pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &old_cancel_state); |
| pthread_cleanup_push(DetachThreadLinux, (void *) cleanupArg); |
| |
| // |
| // Put the thread in deferred cancellation mode. |
| // |
| pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &old_cancel_type); |
| |
| // |
| // Pop cleanup handler and execute it prior to unregistering the cleanup handler. |
| // |
| pthread_cleanup_pop(1); |
| |
| // |
| // Restore the thread's previous cancellation mode. |
| // |
| pthread_setcanceltype(old_cancel_state, NULL); |
| #endif |
| } |
| |
| |
| // |
| // Thread Local Storage Operations |
| // |
| inline OS_TLSIndex PthreadKeyToTLSIndex(pthread_key_t key) |
| { |
| return (OS_TLSIndex)((uintptr_t)key + 1); |
| } |
| |
| inline pthread_key_t TLSIndexToPthreadKey(OS_TLSIndex nIndex) |
| { |
| return (pthread_key_t)((uintptr_t)nIndex - 1); |
| } |
| |
| OS_TLSIndex OS_AllocTLSIndex() |
| { |
| pthread_key_t pPoolIndex; |
| |
| // |
| // Create global pool key. |
| // |
| if ((pthread_key_create(&pPoolIndex, NULL)) != 0) { |
| assert(0 && "OS_AllocTLSIndex(): Unable to allocate Thread Local Storage"); |
| return OS_INVALID_TLS_INDEX; |
| } |
| else |
| return PthreadKeyToTLSIndex(pPoolIndex); |
| } |
| |
| |
| bool OS_SetTLSValue(OS_TLSIndex nIndex, void *lpvValue) |
| { |
| if (nIndex == OS_INVALID_TLS_INDEX) { |
| assert(0 && "OS_SetTLSValue(): Invalid TLS Index"); |
| return false; |
| } |
| |
| if (pthread_setspecific(TLSIndexToPthreadKey(nIndex), lpvValue) == 0) |
| return true; |
| else |
| return false; |
| } |
| |
| void* OS_GetTLSValue(OS_TLSIndex nIndex) |
| { |
| // |
| // This function should return 0 if nIndex is invalid. |
| // |
| assert(nIndex != OS_INVALID_TLS_INDEX); |
| return pthread_getspecific(TLSIndexToPthreadKey(nIndex)); |
| } |
| |
| bool OS_FreeTLSIndex(OS_TLSIndex nIndex) |
| { |
| if (nIndex == OS_INVALID_TLS_INDEX) { |
| assert(0 && "OS_SetTLSValue(): Invalid TLS Index"); |
| return false; |
| } |
| |
| // |
| // Delete the global pool key. |
| // |
| if (pthread_key_delete(TLSIndexToPthreadKey(nIndex)) == 0) |
| return true; |
| else |
| return false; |
| } |
| |
| // TODO: non-windows: if we need these on linux, flesh them out |
| void InitGlobalLock() { } |
| void GetGlobalLock() { } |
| void ReleaseGlobalLock() { } |
| |
| void* OS_CreateThread(TThreadEntrypoint /*entry*/) |
| { |
| return 0; |
| } |
| |
| void OS_WaitForAllThreads(void* /*threads*/, int /*numThreads*/) |
| { |
| } |
| |
| void OS_Sleep(int /*milliseconds*/) |
| { |
| } |
| |
| void OS_DumpMemoryCounters() |
| { |
| } |
| |
| } // end namespace glslang |