79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
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/* 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 "memory.h"
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#include "luts.h"
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#include "conversions.h"
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std::string mem_string( const MemoryStatus & mem_status,
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MEMORY_MODE mode,
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bool use_colors )
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{
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std::ostringstream oss;
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// Change the percision for floats, for a pretty output
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oss.precision( 2 );
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oss.setf( std::ios::fixed | std::ios::right );
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if( use_colors )
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{
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oss << mem_lut[static_cast< unsigned int >((100 * mem_status.used_mem) / mem_status.total_mem)];
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}
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switch( mode )
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{
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case MEMORY_MODE_FREE_MEMORY: // Show free memory in MB or GB
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{
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const float free_mem = mem_status.total_mem - mem_status.used_mem;
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const float free_mem_in_gigabytes = convert_unit( free_mem, GIGABYTES, MEGABYTES );
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// if free memory is less than 1 GB, use MB instead
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if( free_mem_in_gigabytes < 1.0f )
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{
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oss << free_mem << "MB";
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}
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else
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{
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oss << free_mem_in_gigabytes << "GB";
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}
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break;
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}
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case MEMORY_MODE_USAGE_PERCENTAGE:
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{
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// Calculate the percentage of used memory
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const float percentage_mem = mem_status.used_mem /
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static_cast<float>( mem_status.total_mem ) * 100.0;
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oss << percentage_mem << '%';
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break;
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}
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default: // Default mode, just show the used/total memory in MB
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oss << static_cast< unsigned int >( mem_status.used_mem ) << '/'
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<< static_cast< unsigned int >( mem_status.used_mem ) << "MB";
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}
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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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