240752d800
Since the headers for cpu, memory and load functions are virtually the same for all platforms, I've decided to move them into common/ dir and do some refacotring: * removed per-platform header files * implemented get_cpu_count() function across all platforms. We are using it cpu on every platform, yet not on every one this was implemented as a separate function. * removed platform detection through preprocessor from main: we don't need this there anymore, since the headers are common for all platforms. CMake will handle setting of correct source files for us now. * Unified used defines for CPU states across all platforms and made linux use them. Added some platform detection to cpu.h in order to set them correctly across the platforms. * moved getsysctl.h to common/ dir, since it's used on Net and Free BSD, and thus become a common include.
69 lines
1.7 KiB
C++
69 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 <string>
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#include <sstream>
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#include <sys/sysinfo.h>
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#include <linux/kernel.h> // SI_LOAD_SHIFT
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#include "load.h"
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#include "cpu.h"
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#include "luts.h"
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std::string load_string( bool use_colors = false )
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{
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std::ostringstream oss;
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float f = static_cast<float>( 1 << SI_LOAD_SHIFT );
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struct sysinfo sinfo;
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sysinfo( &sinfo );
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if( use_colors )
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{
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// Likely does not work on BSD, but not tested
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float recent_load = sinfo.loads[0] / f;
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// colors range from zero to twice the number of cpu's
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// for the most recent load metric
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unsigned load_percent = static_cast< unsigned int >(
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recent_load / get_cpu_count() * 0.5f * 100.0f );
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if( load_percent > 100 )
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{
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load_percent = 100;
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}
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oss << load_lut[load_percent];
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}
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// set precision so we get results like "0.22"
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oss.setf( std::ios::fixed );
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oss.precision( 2 );
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oss << sinfo.loads[0] / f << " " << sinfo.loads[1] / f << " "
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<< sinfo.loads[2] / f;
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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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