Initial Commit - Lesson 31 (Commit #1)

2026-02-24 22:39:26 -05:00
commit 9591e7f503
4631 changed files with 1019212 additions and 0 deletions
--- a/Plugins/GameLiftServerSDK/ThirdParty/concurrentqueue/benchmarks/tbb/recursive_mutex.cpp
+++ b/Plugins/GameLiftServerSDK/ThirdParty/concurrentqueue/benchmarks/tbb/recursive_mutex.cpp
@@ -0,0 +1,136 @@
+/*
+    Copyright 2005-2014 Intel Corporation.  All Rights Reserved.
+
+    This file is part of Threading Building Blocks. Threading Building Blocks is free software;
+    you can redistribute it and/or modify it under the terms of the GNU General Public License
+    version 2  as  published  by  the  Free Software Foundation.  Threading Building Blocks is
+    distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
+    implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+    See  the GNU General Public License for more details.   You should have received a copy of
+    the  GNU General Public License along with Threading Building Blocks; if not, write to the
+    Free Software Foundation, Inc.,  51 Franklin St,  Fifth Floor,  Boston,  MA 02110-1301 USA
+
+    As a special exception,  you may use this file  as part of a free software library without
+    restriction.  Specifically,  if other files instantiate templates  or use macros or inline
+    functions from this file, or you compile this file and link it with other files to produce
+    an executable,  this file does not by itself cause the resulting executable to be covered
+    by the GNU General Public License. This exception does not however invalidate any other
+    reasons why the executable file might be covered by the GNU General Public License.
+*/
+
+#include "tbb/recursive_mutex.h"
+#include "itt_notify.h"
+
+namespace tbb {
+
+void recursive_mutex::scoped_lock::internal_acquire( recursive_mutex& m ) {
+#if _WIN32||_WIN64
+    switch( m.state ) {
+      case INITIALIZED:
+        // since we cannot look into the internal of the CriticalSection object
+        // we won't know how many times the lock has been acquired, and thus
+        // we won't know when we may safely set the state back to INITIALIZED
+        // if we change the state to HELD as in mutex.cpp.  thus, we won't change
+        // the state for recursive_mutex
+        EnterCriticalSection( &m.impl );
+        break;
+      case DESTROYED:
+        __TBB_ASSERT(false,"recursive_mutex::scoped_lock: mutex already destroyed");
+        break;
+      default:
+        __TBB_ASSERT(false,"recursive_mutex::scoped_lock: illegal mutex state");
+        break;
+    }
+#else
+    int error_code = pthread_mutex_lock(&m.impl);
+    if( error_code )
+        tbb::internal::handle_perror(error_code,"recursive_mutex::scoped_lock: pthread_mutex_lock failed");
+#endif /* _WIN32||_WIN64 */
+    my_mutex = &m;
+}
+
+void recursive_mutex::scoped_lock::internal_release() {
+    __TBB_ASSERT( my_mutex, "recursive_mutex::scoped_lock: not holding a mutex" );
+#if _WIN32||_WIN64    
+    switch( my_mutex->state ) {
+      case INITIALIZED: 
+        LeaveCriticalSection( &my_mutex->impl );
+        break;
+      case DESTROYED: 
+        __TBB_ASSERT(false,"recursive_mutex::scoped_lock: mutex already destroyed"); 
+        break;
+      default: 
+        __TBB_ASSERT(false,"recursive_mutex::scoped_lock: illegal mutex state");
+        break;
+    }
+#else
+     int error_code = pthread_mutex_unlock(&my_mutex->impl);
+     __TBB_ASSERT_EX(!error_code, "recursive_mutex::scoped_lock: pthread_mutex_unlock failed");
+#endif /* _WIN32||_WIN64 */
+     my_mutex = NULL;
+}
+
+bool recursive_mutex::scoped_lock::internal_try_acquire( recursive_mutex& m ) {
+#if _WIN32||_WIN64
+    switch( m.state ) {
+      case INITIALIZED: 
+        break;
+      case DESTROYED: 
+        __TBB_ASSERT(false,"recursive_mutex::scoped_lock: mutex already destroyed"); 
+        break;
+      default: 
+        __TBB_ASSERT(false,"recursive_mutex::scoped_lock: illegal mutex state");
+        break;
+    }
+#endif /* _WIN32||_WIN64 */
+    bool result;
+#if _WIN32||_WIN64
+    result = TryEnterCriticalSection(&m.impl)!=0;
+#else
+    result = pthread_mutex_trylock(&m.impl)==0;
+#endif /* _WIN32||_WIN64 */
+    if( result )
+        my_mutex = &m;
+    return result;
+}
+
+void recursive_mutex::internal_construct() {
+#if _WIN32||_WIN64
+    InitializeCriticalSectionEx(&impl, 4000, 0);
+    state = INITIALIZED;
+#else
+    pthread_mutexattr_t mtx_attr;
+    int error_code = pthread_mutexattr_init( &mtx_attr );
+    if( error_code )
+        tbb::internal::handle_perror(error_code,"recursive_mutex: pthread_mutexattr_init failed");
+
+    pthread_mutexattr_settype( &mtx_attr, PTHREAD_MUTEX_RECURSIVE );
+    error_code = pthread_mutex_init( &impl, &mtx_attr );
+    if( error_code )
+        tbb::internal::handle_perror(error_code,"recursive_mutex: pthread_mutex_init failed");
+    pthread_mutexattr_destroy( &mtx_attr );
+#endif /* _WIN32||_WIN64*/    
+    ITT_SYNC_CREATE(&impl, _T("tbb::recursive_mutex"), _T(""));
+}
+
+void recursive_mutex::internal_destroy() {
+#if _WIN32||_WIN64
+    switch( state ) {
+      case INITIALIZED:
+        DeleteCriticalSection(&impl);
+        break;
+      case DESTROYED: 
+        __TBB_ASSERT(false,"recursive_mutex: already destroyed");
+        break;
+      default: 
+        __TBB_ASSERT(false,"recursive_mutex: illegal state for destruction");
+        break;
+    }
+    state = DESTROYED;
+#else
+    int error_code = pthread_mutex_destroy(&impl); 
+    __TBB_ASSERT_EX(!error_code,"recursive_mutex: pthread_mutex_destroy failed");
+#endif /* _WIN32||_WIN64 */
+}
+
+} // namespace tbb