59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
#include <string>
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#include <sstream>
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#include <fstream>
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#include "memory.h"
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#include "../luts.h"
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std::string mem_string( bool use_colors = false ) {
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std::ostringstream oss;
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unsigned int total_mem;
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unsigned int used_mem;
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unsigned int unused_mem;
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size_t substrStart;
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size_t substrLen;
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std::ifstream meminfo_file( "/proc/meminfo" );
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std::string mem_line;
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getline( meminfo_file, mem_line );
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substrStart = mem_line.find_first_of( ':' ) + 1;
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substrLen = mem_line.find_first_of( 'k' );
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total_mem = stoi(mem_line.substr(substrStart, substrLen));
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used_mem = total_mem;
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for( unsigned int i = 0; i < 3; i++ ) {
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getline( meminfo_file, mem_line );
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// accomodate MemAvailable potentially being in lines 2-4 of
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// /proc/meminfo. do this in a way to not break the original logic of the
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// loop
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if( mem_line.find("MemAvailable") == 0 )
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i--;
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else {
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substrStart = mem_line.find_first_of( ':' ) + 1;
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substrLen = mem_line.find_first_of( 'k' );
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unused_mem = stoi(mem_line.substr(substrStart, substrLen));
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used_mem -= unused_mem;
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}
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}
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meminfo_file.close();
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if( use_colors ) {
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oss << mem_lut[(100 * used_mem) / total_mem];
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}
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oss << used_mem / 1024 << '/' << total_mem / 1024 << "MB";
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if( use_colors ) {
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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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