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a2ed351365
You should add two libraries into your server binaries: tbb.so/tbbmalloc.so on *nix and tbb(_debug).dll/tbbmalloc(_debug).dll on Windows!!! Define USE_STANDARD_MALLOC while compiling 'framework' project to use OS' default memory allocator! Signed-off-by: Ambal <pogrebniak@gala.net>
106 lines
4.5 KiB
C++
106 lines
4.5 KiB
C++
/*
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Copyright 2005-2009 Intel Corporation. All Rights Reserved.
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This file is part of Threading Building Blocks.
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Threading Building Blocks is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License
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version 2 as published by the Free Software Foundation.
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Threading Building Blocks is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Threading Building Blocks; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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As a special exception, you may use this file as part of a free software
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library without restriction. Specifically, if other files instantiate
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templates or use macros or inline functions from this file, or you compile
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this file and link it with other files to produce an executable, this
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file does not by itself cause the resulting executable to be covered by
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the GNU General Public License. This exception does not however
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invalidate any other reasons why the executable file might be covered by
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the GNU General Public License.
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*/
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#ifndef __TBB_task_scheduler_init_H
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#define __TBB_task_scheduler_init_H
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#include "tbb_stddef.h"
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namespace tbb {
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typedef std::size_t stack_size_type;
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//! @cond INTERNAL
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namespace internal {
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//! Internal to library. Should not be used by clients.
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/** @ingroup task_scheduling */
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class scheduler;
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} // namespace internal
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//! @endcond
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//! Class representing reference to tbb scheduler.
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/** A thread must construct a task_scheduler_init, and keep it alive,
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during the time that it uses the services of class task.
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@ingroup task_scheduling */
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class task_scheduler_init: internal::no_copy {
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/** NULL if not currently initialized. */
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internal::scheduler* my_scheduler;
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public:
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//! Typedef for number of threads that is automatic.
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static const int automatic = -1;
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//! Argument to initialize() or constructor that causes initialization to be deferred.
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static const int deferred = -2;
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//! Ensure that scheduler exists for this thread
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/** A value of -1 lets tbb decide on the number of threads, which is typically
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the number of hardware threads. For production code, the default value of -1
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should be used, particularly if the client code is mixed with third party clients
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that might also use tbb.
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The number_of_threads is ignored if any other task_scheduler_inits
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currently exist. A thread may construct multiple task_scheduler_inits.
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Doing so does no harm because the underlying scheduler is reference counted. */
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void __TBB_EXPORTED_METHOD initialize( int number_of_threads=automatic );
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//! The overloaded method with stack size parameter
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/** Overloading is necessary to preserve ABI compatibility */
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void __TBB_EXPORTED_METHOD initialize( int number_of_threads, stack_size_type thread_stack_size );
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//! Inverse of method initialize.
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void __TBB_EXPORTED_METHOD terminate();
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//! Shorthand for default constructor followed by call to intialize(number_of_threads).
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task_scheduler_init( int number_of_threads=automatic, stack_size_type thread_stack_size=0 ) : my_scheduler(NULL) {
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initialize( number_of_threads, thread_stack_size );
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}
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//! Destroy scheduler for this thread if thread has no other live task_scheduler_inits.
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~task_scheduler_init() {
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if( my_scheduler )
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terminate();
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internal::poison_pointer( my_scheduler );
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}
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//! Returns the number of threads tbb scheduler would create if initialized by default.
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/** Result returned by this method does not depend on whether the scheduler
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has already been initialized.
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Because tbb 2.0 does not support blocking tasks yet, you may use this method
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to boost the number of threads in the tbb's internal pool, if your tasks are
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doing I/O operations. The optimal number of additional threads depends on how
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much time your tasks spend in the blocked state. */
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static int __TBB_EXPORTED_FUNC default_num_threads ();
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//! Returns true if scheduler is active (initialized); false otherwise
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bool is_active() const { return my_scheduler != NULL; }
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};
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} // namespace tbb
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#endif /* __TBB_task_scheduler_init_H */
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