86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
/*
|
|
Copyright 2005-2016 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.
|
|
*/
|
|
|
|
#ifndef __TBB_global_control_H
|
|
#define __TBB_global_control_H
|
|
|
|
#if !TBB_PREVIEW_GLOBAL_CONTROL && !__TBB_BUILD
|
|
#error Set TBB_PREVIEW_GLOBAL_CONTROL before including global_control.h
|
|
#endif
|
|
|
|
#include "tbb_stddef.h"
|
|
|
|
namespace tbb {
|
|
namespace interface9 {
|
|
|
|
class global_control {
|
|
public:
|
|
enum parameter {
|
|
max_allowed_parallelism,
|
|
thread_stack_size,
|
|
parameter_max // insert new parameters above this point
|
|
};
|
|
|
|
global_control(parameter p, size_t value) :
|
|
my_value(value), my_next(NULL), my_param(p) {
|
|
__TBB_ASSERT(my_param < parameter_max, "Invalid parameter");
|
|
#if __TBB_WIN8UI_SUPPORT
|
|
// For Windows Store* apps it's impossible to set stack size
|
|
if (p==thread_stack_size)
|
|
return;
|
|
#elif __TBB_x86_64 && (_WIN32 || _WIN64)
|
|
if (p==thread_stack_size)
|
|
__TBB_ASSERT_RELEASE((unsigned)value == value, "Stack size is limited to unsigned int range");
|
|
#endif
|
|
if (my_param==max_allowed_parallelism)
|
|
__TBB_ASSERT_RELEASE(my_value>0, "max_allowed_parallelism cannot be 0.");
|
|
internal_create();
|
|
}
|
|
|
|
~global_control() {
|
|
__TBB_ASSERT(my_param < parameter_max, "Invalid parameter. Probably the object was corrupted.");
|
|
#if __TBB_WIN8UI_SUPPORT
|
|
// For Windows Store* apps it's impossible to set stack size
|
|
if (my_param==thread_stack_size)
|
|
return;
|
|
#endif
|
|
internal_destroy();
|
|
}
|
|
|
|
static size_t active_value(parameter p) {
|
|
__TBB_ASSERT(p < parameter_max, "Invalid parameter");
|
|
return active_value((int)p);
|
|
}
|
|
private:
|
|
size_t my_value;
|
|
global_control *my_next;
|
|
parameter my_param;
|
|
|
|
void __TBB_EXPORTED_METHOD internal_create();
|
|
void __TBB_EXPORTED_METHOD internal_destroy();
|
|
static size_t __TBB_EXPORTED_FUNC active_value(int param);
|
|
};
|
|
} // namespace interface9
|
|
|
|
using interface9::global_control;
|
|
|
|
} // tbb
|
|
|
|
#endif // __TBB_global_control_H
|