/*
* Copyright ( c ) 2012 , 2019 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code 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
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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#ifndef SHARE_GC_SHARED_GCCONFIGURATION_HPP
#define SHARE_GC_SHARED_GCCONFIGURATION_HPP
#include "gc/shared/gcName.hpp"
#include "oops/compressedOops.hpp"
#include "utilities/globalDefinitions.hpp"
class GCConfiguration {
public :
GCName young_collector() const ;
GCName old_collector() const ;
uint num_parallel_gc_threads() const ;
uint num_concurrent_gc_threads() const ;
bool uses_dynamic_gc_threads() const ;
bool is_explicit_gc_concurrent() const ;
bool is_explicit_gc_disabled() const ;
uintx gc_time_ratio() const ;
bool has_pause_target_default_value() const ;
uintx pause_target() const ;
};
class GCTLABConfiguration {
public :
bool uses_tlabs() const ;
size_t min_tlab_size() const ;
uint tlab_refill_waste_limit() const ;
};
class GCSurvivorConfiguration {
public :
intx initial_tenuring_threshold() const ;
intx max_tenuring_threshold() const ;
};
class GCHeapConfiguration {
public :
size_t max_size() const ;
size_t min_size() const ;
size_t initial_size() const ;
bool uses_compressed_oops() const ;
CompressedOops::Mode narrow_oop_mode() const ;
uint object_alignment_in_bytes() const ;
int heap_address_size_in_bits() const ;
};
class GCYoungGenerationConfiguration {
public :
bool has_max_size_default_value() const ;
uintx max_size() const ;
uintx min_size() const ;
intx new_ratio() const ;
};
#endif // SHARE_GC_SHARED_GCCONFIGURATION_HPP
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