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.
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
/*
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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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#ifndef BSD_METER_COMMON_H_
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#define BSD_METER_COMMON_H_
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#include <iostream>
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#include <cerrno>
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#include <sys/sysctl.h>
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#include <sys/types.h>
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#include <cstdlib> //exit()
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#include <string.h> //strerror()
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#define GETSYSCTL(name, var) getsysctl(name, &(var), sizeof(var))
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static inline void getsysctl( const char *name, void *ptr, size_t len )
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{
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size_t nlen = len;
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if( sysctlbyname( name, ptr, &nlen, NULL, 0 ) == -1 )
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{
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std::cerr << "sysctl(" << name << "...) failed: " << strerror( errno )
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<< std::endl;
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exit( EXIT_FAILURE );
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}
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if( nlen != len )
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{
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std::cerr << "sysctl(" << name << "...) expected "
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<< static_cast<unsigned long>( len ) << " bytes, got "
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<< static_cast<unsigned long>( nlen ) << " bytes\n";
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//exit( 23 );
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}
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}
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#endif
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