mirror of https://github.com/gnss-sdr/gnss-sdr
213 lines
6.1 KiB
C
213 lines
6.1 KiB
C
/*
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* Copyright 2011-2012 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include <volk_gnsssdr/volk_gnsssdr_common.h>
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#include "volk_gnsssdr_machines.h"
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#include <volk_gnsssdr/volk_gnsssdr_typedefs.h>
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#include <volk_gnsssdr/volk_gnsssdr_cpu.h>
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#include "volk_gnsssdr_rank_archs.h"
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#include <volk_gnsssdr/volk_gnsssdr.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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static size_t __alignment = 0;
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static intptr_t __alignment_mask = 0;
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struct volk_gnsssdr_machine *get_machine(void)
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{
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extern struct volk_gnsssdr_machine *volk_gnsssdr_machines[];
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extern unsigned int n_volk_gnsssdr_machines;
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static struct volk_gnsssdr_machine *machine = NULL;
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if(machine != NULL)
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return machine;
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else {
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unsigned int max_score = 0;
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unsigned int i;
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struct volk_gnsssdr_machine *max_machine = NULL;
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for(i=0; i<n_volk_gnsssdr_machines; i++) {
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if(!(volk_gnsssdr_machines[i]->caps & (~volk_gnsssdr_get_lvarch()))) {
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if(volk_gnsssdr_machines[i]->caps > max_score) {
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max_score = volk_gnsssdr_machines[i]->caps;
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max_machine = volk_gnsssdr_machines[i];
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}
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}
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}
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machine = max_machine;
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printf("Using Volk machine: %s\n", machine->name);
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__alignment = machine->alignment;
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__alignment_mask = (intptr_t)(__alignment-1);
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return machine;
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}
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}
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void volk_gnsssdr_list_machines(void)
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{
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extern struct volk_gnsssdr_machine *volk_gnsssdr_machines[];
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extern unsigned int n_volk_gnsssdr_machines;
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unsigned int i;
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for(i=0; i<n_volk_gnsssdr_machines; i++) {
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if(!(volk_gnsssdr_machines[i]->caps & (~volk_gnsssdr_get_lvarch()))) {
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printf("%s;", volk_gnsssdr_machines[i]->name);
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}
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}
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printf("\n");
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}
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const char* volk_gnsssdr_get_machine(void)
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{
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extern struct volk_gnsssdr_machine *volk_gnsssdr_machines[];
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extern unsigned int n_volk_gnsssdr_machines;
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static struct volk_gnsssdr_machine *machine = NULL;
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if(machine != NULL)
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return machine->name;
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else {
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unsigned int max_score = 0;
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unsigned int i;
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struct volk_gnsssdr_machine *max_machine = NULL;
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for(i=0; i<n_volk_gnsssdr_machines; i++) {
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if(!(volk_gnsssdr_machines[i]->caps & (~volk_gnsssdr_get_lvarch()))) {
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if(volk_gnsssdr_machines[i]->caps > max_score) {
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max_score = volk_gnsssdr_machines[i]->caps;
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max_machine = volk_gnsssdr_machines[i];
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}
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}
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}
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machine = max_machine;
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return machine->name;
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}
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}
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size_t volk_gnsssdr_get_alignment(void)
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{
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get_machine(); //ensures alignment is set
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return __alignment;
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}
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bool volk_gnsssdr_is_aligned(const void *ptr)
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{
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return ((intptr_t)(ptr) & __alignment_mask) == 0;
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}
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#define LV_HAVE_GENERIC
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#define LV_HAVE_DISPATCHER
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#for $kern in $kernels
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#if $kern.has_dispatcher
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#include <volk_gnsssdr/$(kern.name).h> //pulls in the dispatcher
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#end if
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static inline void __$(kern.name)_d($kern.arglist_full)
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{
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#if $kern.has_dispatcher
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$(kern.name)_dispatcher($kern.arglist_names);
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return;
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#end if
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if (volk_gnsssdr_is_aligned(
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#set $num_open_parens = 0
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#for $arg_type, $arg_name in $kern.args
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#if '*' in $arg_type
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VOLK_OR_PTR($arg_name,
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#set $num_open_parens += 1
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#end if
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#end for
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0$(')'*$num_open_parens)
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)){
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$(kern.name)_a($kern.arglist_names);
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}
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else{
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$(kern.name)_u($kern.arglist_names);
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}
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}
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static inline void __init_$(kern.name)(void)
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{
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const char *name = get_machine()->$(kern.name)_name;
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const char **impl_names = get_machine()->$(kern.name)_impl_names;
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const int *impl_deps = get_machine()->$(kern.name)_impl_deps;
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const bool *alignment = get_machine()->$(kern.name)_impl_alignment;
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const size_t n_impls = get_machine()->$(kern.name)_n_impls;
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const size_t index_a = volk_gnsssdr_rank_archs(name, impl_names, impl_deps, alignment, n_impls, true/*aligned*/);
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const size_t index_u = volk_gnsssdr_rank_archs(name, impl_names, impl_deps, alignment, n_impls, false/*unaligned*/);
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$(kern.name)_a = get_machine()->$(kern.name)_impls[index_a];
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$(kern.name)_u = get_machine()->$(kern.name)_impls[index_u];
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assert($(kern.name)_a);
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assert($(kern.name)_u);
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$(kern.name) = &__$(kern.name)_d;
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}
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static inline void __$(kern.name)_a($kern.arglist_full)
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{
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__init_$(kern.name)();
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$(kern.name)_a($kern.arglist_names);
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}
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static inline void __$(kern.name)_u($kern.arglist_full)
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{
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__init_$(kern.name)();
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$(kern.name)_u($kern.arglist_names);
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}
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static inline void __$(kern.name)($kern.arglist_full)
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{
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__init_$(kern.name)();
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$(kern.name)($kern.arglist_names);
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}
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$kern.pname $(kern.name)_a = &__$(kern.name)_a;
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$kern.pname $(kern.name)_u = &__$(kern.name)_u;
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$kern.pname $(kern.name) = &__$(kern.name);
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void $(kern.name)_manual($kern.arglist_full, const char* impl_name)
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{
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const int index = volk_gnsssdr_get_index(
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get_machine()->$(kern.name)_impl_names,
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get_machine()->$(kern.name)_n_impls,
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impl_name
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);
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get_machine()->$(kern.name)_impls[index](
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$kern.arglist_names
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);
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}
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volk_gnsssdr_func_desc_t $(kern.name)_get_func_desc(void) {
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const char **impl_names = get_machine()->$(kern.name)_impl_names;
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const int *impl_deps = get_machine()->$(kern.name)_impl_deps;
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const bool *alignment = get_machine()->$(kern.name)_impl_alignment;
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const size_t n_impls = get_machine()->$(kern.name)_n_impls;
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volk_gnsssdr_func_desc_t desc = {
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impl_names,
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impl_deps,
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alignment,
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n_impls
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};
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return desc;
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}
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#end for
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