Panda3D

config_pipeline.cxx

00001 // Filename: config_pipeline.cxx
00002 // Created by:  drose (28Mar06)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #include "config_pipeline.h"
00016 #include "asyncTaskBase.h"
00017 #include "mainThread.h"
00018 #include "externalThread.h"
00019 #include "thread.h"
00020 #include "pythonThread.h"
00021 #include "pandaSystem.h"
00022 
00023 #include "dconfig.h"
00024 
00025 ConfigureDef(config_pipeline);
00026 NotifyCategoryDef(pipeline, "");
00027 NotifyCategoryDef(thread, "");
00028 
00029 ConfigureFn(config_pipeline) {
00030   init_libpipeline();
00031 }
00032 
00033 ConfigVariableBool support_threads
00034 ("support-threads", true,
00035  PRC_DESC("Set this false to disallow the creation of threads using Panda's "
00036           "Thread interface, even if threading support is compiled in.  This "
00037           "does not affect the operation of mutexes and other synchronization "
00038           "primitives, just the creation of threads."));
00039 
00040 ConfigVariableBool name_deleted_mutexes
00041 ("name-deleted-mutexes", false,
00042  PRC_DESC("Set this true to allocate a name to each Mutex object that "
00043           "destructs, so if the Mutex is locked after destruction, we can "
00044           "print out its name to aid debugging.  This is only available "
00045           "when compiled with DEBUG_THREADS.  Enabling this variable will "
00046           "cause a memory leak, so you should only enable it when you are "
00047           "specifically tracking down an operation on a deleted Mutex.  "
00048           "It is not guaranteed to work, of course, because the memory "
00049           "for a deleted Mutex may become reused for some other purpose."));
00050 
00051 ConfigVariableInt thread_stack_size
00052 ("thread-stack-size", 4194304,
00053  PRC_DESC("Specifies the minimum size, in bytes, of the stack that will be "
00054           "created for each newly-created thread.  Not all thread "
00055           "implementations respect this value."));
00056 
00057 ////////////////////////////////////////////////////////////////////
00058 //     Function: init_libpipeline
00059 //  Description: Initializes the library.  This must be called at
00060 //               least once before any of the functions or classes in
00061 //               this library can be used.  Normally it will be
00062 //               called by the static initializers and need not be
00063 //               called explicitly, but special cases exist.
00064 ////////////////////////////////////////////////////////////////////
00065 void
00066 init_libpipeline() {
00067   static bool initialized = false;
00068   if (initialized) {
00069     return;
00070   }
00071   initialized = true;
00072 
00073   AsyncTaskBase::init_type();
00074   MainThread::init_type();
00075   ExternalThread::init_type();
00076   Thread::init_type();
00077 #ifdef HAVE_PYTHON
00078   PythonThread::init_type();
00079 #endif  // HAVE_PYTHON
00080 
00081 #ifdef HAVE_THREADS
00082  {
00083   PandaSystem *ps = PandaSystem::get_global_ptr();
00084   ps->add_system("threads");
00085   }
00086 #endif  // HAVE_THREADS
00087 }
 All Classes Functions Variables Enumerations