65 lines
1.7 KiB
C++
65 lines
1.7 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 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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#include <sstream>
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#include <string>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <uvm/uvm_extern.h> // uvmexp struct
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#include "error.h"
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#include "luts.h"
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#include "conversions.h"
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#include "memory.h"
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std::string mem_string( bool use_colors = false )
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{
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std::ostringstream oss;
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// get vm memory stats
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static int vm_totalmem[] = { CTL_VM, VM_UVMEXP2 };
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struct uvmexp_sysctl mem;
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size_t size = sizeof( mem );
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if( sysctl( vm_totalmem, 2, &mem, &size, NULL, 0 ) < 0 )
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{
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error( "memory: error getting vm memory stats" );
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}
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int64_t total_mem = ( mem.npages << mem.pageshift );
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int64_t used_mem =
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( mem.active + mem.wired - mem.filepages ) << mem.pageshift;
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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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// add 1 to used which gets lost somewhere along conversions
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oss << convert_unit( used_mem, MEGABYTES )
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<< '/' << convert_unit( total_mem, MEGABYTES ) << "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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