d3eb9e3187
instead of using hard coded divisions to calculate ram stats it's better to use macros defined in config.h. BSD port was doing this already, using macros defined in it's common.h header. I pulled those macros out and applied them to all platforms. File version.h.in got renamed into config.h.in since it doesn't caontain only the version anymore.
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
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*
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* Copyright 2012 Matthew McCormick
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* Copyright 2013 Justin Crawford <Justasic@gmail.com>
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* Copyright 2015 Pawel 'l0ner' Soltys
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Based on: github.com/freebsd/freebsd/blob/master/usr.bin/top/machine.c
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// Based on: Apple.cpp for load_string/mem_string and apple's documentation
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#error ToDo: OpenBSD. This file is incomplete and likely will not compile if you remove this error (it is here to tell you it's unfinished)
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#include <sstream>
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#include <string>
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#include <sys/types.h>
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#include "common.h"
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#include "memory.h"
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#include "../luts.h"
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#include "../config.h"
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std::string mem_string( bool use_colors = false )
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{
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// These values are in bytes
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int64_t total_mem = 0;
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int64_t used_mem = 0;
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int64_t unused_mem = 0;
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int32_t inactive_mem = 0;
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int32_t active_mem = 0;
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int32_t free_mem = 0;
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int32_t wired_mem = 0;
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int32_t page_size = 0;
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int32_t cache_mem = 0;
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std::ostringstream oss;
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// Get total physical memory, page size, and some other needed info
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GETSYSCTL( "hw.realmem", total_mem );
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GETSYSCTL( "hw.pagesize", page_size );
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GETSYSCTL( "vm.stats.vm.v_free_count", free_mem );
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GETSYSCTL( "vm.stats.vm.v_inactive_count", inactive_mem );
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GETSYSCTL( "vm.stats.vm.v_cache_count", cache_mem );
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GETSYSCTL( "vm.stats.vm.v_wire_count", wired_mem );
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// Get all memory which can be allocated
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//unused_mem = (inactive_mem + cache_mem + free_mem) * page_size;
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used_mem = (
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static_cast<int64_t>( active_mem ) + static_cast<int64_t>( wired_mem ) +
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static_cast<int64_t>( inactive_mem ) ) * static_cast<int64_t>( page_size );
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if( use_colors )
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{
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oss << mem_lut[( 100 * used_mem ) / total_mem];
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}
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oss << MEGABYTES( used_mem ) << '/' << MEGABYTES( total_mem ) << "MB";
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if( use_colors )
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{
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oss << "#[fg=default,bg=default]";
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}
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return oss.str();
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}
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