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Merge pull request #18 from l0ner/devel

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Code Refactoring and NetBSD port
This commit is contained in:
Matt McCormick 2015-02-19 22:39:31 -05:00
commit ec1959128d
26 changed files with 203 additions and 539 deletions
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10
CMakeLists.txt
View File

@ -59,20 +59,22 @@ endif(NOT CMAKE_BUILD_TYPE)
# detect system type
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
message(STATUS "Linux detected")
set(METER_SOURCES "linux/memory.cc" "linux/cpu.cc" "linux/load.cc")
set(METER_SOURCES "linux/memory.cc" "linux/cpu.cc" "common/load.cc")
elseif(CMAKE_SYSTEM_NAME MATCHES "Darwin")
message(STATUS "Darwin detected")
set(METER_SOURCES "osx/memory.cc" "osx/cpu.cc" "osx/load.cc")
set(METER_SOURCES "osx/memory.cc" "osx/cpu.cc" "common/load.cc")
elseif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
message(STATUS "FreeBSD detected")
set(METER_SOURCES "freebsd/memory.cc" "freebsd/cpu.cc" "freebsd/load.cc")
set(METER_SOURCES "freebsd/memory.cc" "freebsd/cpu.cc" "common/load.cc")
elseif(CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
# OpenBSD Stuff Here
message(STATUS "OpenBSD detected")
set(METER_SOURCES "openbsd/memory.cc" "openbsd/cpu.cc" "openbsd/load.cc")
set(METER_SOURCES "openbsd/memory.cc" "openbsd/cpu.cc" "common/load.cc")
if(CMAKE_SYSTEM_VERSION VERSION_LESS 5.7)
add_definitions(-DOPENBSD_WORKAROUND=1)
endif()
elseif(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
set(METER_SOURCES "netbsd/memory.cc" "netbsd/cpu.cc" "common/load.cc")
else()
message(FATAL_ERROR "Cannot be compiled on this system")
endif()

18
openbsd/cpu.h → common/cpu.h
View File

@ -21,12 +21,28 @@
#include <sys/types.h>
#if defined(__APPLE__) && defined(__MACH__)
#define CP_USER 0
#define CP_SYS 1
#define CP_IDLE 2
#define CP_NICE 3
#define CP_STATES 4
#else
#define CP_USER 0
#define CP_NICE 1
#define CP_SYS 2
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
// *BSD or OSX
#define CP_INTR 3
#define CP_IDLE 4
#define CPUSTATES 5
#define CP_STATES 5
#else
//linux
#define CP_IDLE 3
#define CP_STATES 4
#endif
#endif
float cpu_percentage( unsigned );
uint8_t get_cpu_count();

3
openbsd/error.h → common/error.h
View File

@ -23,6 +23,7 @@
#include <sys/errno.h>
#include <cerrno>
#include <cstring> // strerror
#include <cstdlib> // exit()
inline void error( const char * error )
{
@ -30,7 +31,7 @@ inline void error( const char * error )
using std::endl;
cerr << error << ": " << strerror( errno ) << endl;
exit( 23 );
exit( EXIT_FAILURE );
}
#endif

4
freebsd/getsysctl.h → common/getsysctl.h
View File

@ -26,6 +26,8 @@
#include <cerrno>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <cstdlib> //exit()
#include <string.h> //strerror()
#define GETSYSCTL(name, var) getsysctl(name, &(var), sizeof(var))
static inline void getsysctl( const char *name, void *ptr, size_t len )
@ -36,7 +38,7 @@ static inline void getsysctl( const char *name, void *ptr, size_t len )
{
std::cerr << "sysctl(" << name << "...) failed: " << strerror( errno )
<< std::endl;
exit( 23 );
exit( EXIT_FAILURE );
}
if( nlen != len )

10
freebsd/load.cc → common/load.cc
View File

@ -26,7 +26,7 @@
#include <cmath> // floorf()
#include <sys/types.h>
#include "getsysctl.h"
#include "cpu.h"
#include "load.h"
#include "luts.h"
@ -47,18 +47,13 @@ std::string load_string( bool use_colors = false )
{
if( use_colors )
{
// may not work
int32_t cpu_count = 0;
GETSYSCTL( "hw.ncpu", cpu_count );
unsigned load_percent = static_cast<unsigned int>( averages[0] /
cpu_count * 0.5f * 100.0f );
get_cpu_count() * 0.5f * 100.0f );
if( load_percent > 100 )
{
load_percent = 100;
}
ss << load_lut[load_percent];
}
@ -73,7 +68,6 @@ std::string load_string( bool use_colors = false )
{
ss << "#[fg=default,bg=default]";
}
}
return ss.str();

0
freebsd/load.h → common/load.h
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25
common/main.cc
View File

@ -29,28 +29,9 @@
// Tmux color lookup tables for the different metrics.
#include "luts.h"
#if defined(__APPLE__) && defined(__MACH__)
// Apple osx system
#include "osx/cpu.h"
#include "osx/memory.h"
#include "osx/load.h"
#elif defined(__FreeBSD__) || defined(__NetBSD__)
// BSD system
#define BSD_BASED 1
#include "freebsd/cpu.h"
#include "freebsd/load.h"
#include "freebsd/memory.h"
#elif defined(__OpenBSD)
#define BSD_BASED 1
#include "freebsd/cpu.h"
#include "freebsd/load.h"
#include "freebsd/memory.h"
#else
// assume linux system
#include "linux/cpu.h"
#include "linux/memory.h"
#include "linux/load.h"
#endif
#include "cpu.h"
#include "memory.h"
#include "load.h"
std::string cpu_string( unsigned int cpu_usage_delay, unsigned int graph_lines,
bool use_colors = false )

0
freebsd/memory.h → common/memory.h
View File

17
freebsd/cpu.cc
View File

@ -26,15 +26,18 @@
#include "getsysctl.h"
#include "cpu.h"
uint8_t get_cpu_count()
{
int32_t cpu_count = 0;
GETSYSCTL( "hw.ncpu", cpu_count );
return static_cast<uint8_t>( cpu_count );
}
float cpu_percentage( unsigned int cpu_usage_delay )
{
#if __x86_64__ || __ppc64__
u_int64_t load1[CPUSTATES];
u_int64_t load2[CPUSTATES];
#else
u_int32_t load1[CPUSTATES];
u_int32_t load2[CPUSTATES];
#endif
u_long load1[CP_STATES];
u_long load2[CP_STATES];
GETSYSCTL( "kern.cp_time", load1 );
usleep( cpu_usage_delay );

31
freebsd/cpu.h
View File

@ -1,31 +0,0 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef CPU_H_
#define CPU_H_
#define CP_USER 0
#define CP_NICE 1
#define CP_SYS 2
#define CP_INTR 3
#define CP_IDLE 4
#define CPUSTATES 5
float cpu_percentage( unsigned );
#endif

14
linux/cpu.cc
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@ -23,6 +23,11 @@
#include "cpu.h"
#include "luts.h"
uint8_t get_cpu_count()
{
return sysconf( _SC_NPROCESSORS_ONLN );
}
float cpu_percentage( unsigned cpu_usage_delay )
{
std::string line;
@ -32,7 +37,7 @@ float cpu_percentage( unsigned cpu_usage_delay )
// cpu stats
// user, nice, system, idle
// in that order
unsigned long long stats[4];
unsigned long long stats[CP_STATES];
std::ifstream stat_file( "/proc/stat" );
getline( stat_file, line );
@ -64,7 +69,10 @@ float cpu_percentage( unsigned cpu_usage_delay )
stats[i] = std::stoll( line.substr( substr_start, substr_len ) ) - stats[i];
}
return static_cast<float>( stats[0] + stats[1] + stats[2]) /
static_cast<float>( stats[0] + stats[1] + stats[2] + stats[3] ) * 100.0;
return static_cast<float>(
stats[CP_USER] + stats[CP_NICE] + stats[CP_SYS]
) / static_cast<float>(
stats[CP_USER] + stats[CP_NICE] + stats[CP_SYS] + stats[CP_IDLE]
) * 100.0;
}

24
linux/cpu.h
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@ -1,24 +0,0 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef CPU_H_
#define CPU_H_
float cpu_percentage( unsigned );
#endif

70
linux/load.cc
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@ -1,70 +0,0 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <string>
#include <sstream>
#include <unistd.h> // sysconf()?
#include <sys/sysinfo.h>
#include <linux/kernel.h> // SI_LOAD_SHIFT
#include "load.h"
#include "luts.h"
std::string load_string( bool use_colors = false )
{
std::ostringstream oss;
float f = static_cast<float>( 1 << SI_LOAD_SHIFT );
struct sysinfo sinfo;
sysinfo( &sinfo );
if( use_colors )
{
// Likely does not work on BSD, but not tested
unsigned number_of_cpus = sysconf( _SC_NPROCESSORS_ONLN );
float recent_load = sinfo.loads[0] / f;
// colors range from zero to twice the number of cpu's
// for the most recent load metric
unsigned load_percent = static_cast< unsigned int >(
recent_load / number_of_cpus * 0.5f * 100.0f );
if( load_percent > 100 )
{
load_percent = 100;
}
oss << load_lut[load_percent];
}
// set precision so we get results like "0.22"
oss.setf( std::ios::fixed );
oss.precision( 2 );
oss << sinfo.loads[0] / f << " " << sinfo.loads[1] / f << " "
<< sinfo.loads[2] / f;
if( use_colors )
{
oss << "#[fg=default,bg=default]";
}
return oss.str();
}

26
linux/load.h
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@ -1,26 +0,0 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LOAD_H_
#define LOAD_H_
#include <string>
std::string load_string( bool );
#endif

26
linux/memory.h
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@ -1,26 +0,0 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MEMORY_H_
#define MEMORY_H_
#include <string>
std::string mem_string( bool );
#endif

65
netbsd/cpu.cc Normal file
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@ -0,0 +1,65 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2013 Justin Crawford <Justasic@gmail.com>
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Based on: github.com/freebsd/freebsd/blob/master/usr.bin/top/machine.c
// Based on: Apple.cpp for load_string/mem_string and apple's documentation
#include <sys/types.h>
#include <unistd.h> // usleep
#include "getsysctl.h"
#include "cpu.h"
uint8_t get_cpu_count()
{
int cpu_count = 0;
GETSYSCTL( "hw.ncpu", cpu_count );
return static_cast<uint8_t>( cpu_count );
}
float cpu_percentage( unsigned int cpu_usage_delay )
{
u_int64_t load1[CP_STATES];
u_int64_t load2[CP_STATES];
GETSYSCTL( "kern.cp_time", load1 );
usleep( cpu_usage_delay );
GETSYSCTL( "kern.cp_time", load2 );
// Current load times
unsigned long long current_user = load1[CP_USER];
unsigned long long current_system = load1[CP_SYS];
unsigned long long current_nice = load1[CP_NICE];
unsigned long long current_idle = load1[CP_IDLE];
// Next load times
unsigned long long next_user = load2[CP_USER];
unsigned long long next_system = load2[CP_SYS];
unsigned long long next_nice = load2[CP_NICE];
unsigned long long next_idle = load2[CP_IDLE];
// Difference between the two
unsigned long long diff_user = next_user - current_user;
unsigned long long diff_system = next_system - current_system;
unsigned long long diff_nice = next_nice - current_nice;
unsigned long long diff_idle = next_idle - current_idle;
return static_cast<float>( diff_user + diff_system + diff_nice ) /
static_cast<float>( diff_user + diff_system + diff_nice + diff_idle ) *
100.0;
}

64
netbsd/memory.cc Normal file
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@ -0,0 +1,64 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <sstream>
#include <string>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <uvm/uvm_extern.h> // uvmexp struct
#include "error.h"
#include "luts.h"
#include "conversions.h"
#include "memory.h"
std::string mem_string( bool use_colors = false )
{
std::ostringstream oss;
// get vm memory stats
static int vm_totalmem[] = { CTL_VM, VM_UVMEXP2 };
struct uvmexp_sysctl mem;
size_t size = sizeof( mem );
if( sysctl( vm_totalmem, 2, &mem, &size, NULL, 0 ) < 0 )
{
error( "memory: error getting vm memory stats" );
}
int64_t total_mem = ( mem.npages << mem.pageshift );
int64_t used_mem =
( mem.active + mem.wired - mem.filepages ) << mem.pageshift;
if( use_colors )
{
oss << mem_lut[( 100 * used_mem ) / total_mem];
}
// add 1 to used which gets lost somewhere along conversions
oss << convert_unit( used_mem, MEGABYTES )
<< '/' << convert_unit( total_mem, MEGABYTES ) << "MB";
if( use_colors )
{
oss << "#[fg=default,bg=default]";
}
return oss.str();
}

14
openbsd/cpu.cc
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@ -42,18 +42,8 @@ float cpu_percentage( unsigned int cpu_usage_delay )
{
int cpu_ctl[] = { CTL_KERN, KERN_CPTIME };
// on 64bit systems KERN_CPTIME gets reported as 64bit
// uint. Detect 64bit system and define array to hold the
// stats accordingly.
// NOTE: the following test may need to be extended to cover
// more 64bit platforms.
#if __x86_64__ || __ppc64__
u_int64_t load1[CPUSTATES];
u_int64_t load2[CPUSTATES];
#else
u_int32_t load1[CPUSTATES];
u_int32_t load2[CPUSTATES];
#endif
u_long load1[CP_STATES];
u_long load2[CP_STATES];
size_t size = sizeof( load1 );

75
openbsd/load.cc
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@ -1,75 +0,0 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <sstream>
#include <string>
#include <stdlib.h> // getloadavg()
#include <cmath> // floorf()
#include <sys/types.h>
#include "cpu.h"
#include "load.h"
#include "luts.h"
// Load Averages
std::string load_string( bool use_colors = false )
{
std::stringstream ss;
// Only get 3 load averages
const int nelem = 3;
double averages[nelem];
// based on: opensource.apple.com/source/Libc/Libc-262/gen/getloadavg.c
if( getloadavg( averages, nelem ) < 0)
{
ss << "0.00 0.00 0.00"; // couldn't get averages.
}
else
{
if( use_colors )
{
// may not work
uint8_t cpu_count = get_cpu_count();
unsigned load_percent = static_cast<unsigned int>(
averages[0] / cpu_count * 0.5f * 100.0f);
if( load_percent > 100 )
{
load_percent = 100;
}
ss << load_lut[load_percent];
}
for( int i = 0; i < nelem; ++i )
{
// Round to nearest, make sure this is only a 0.00 value not a 0.0000
float avg = floorf( static_cast<float> (averages[i] ) * 100 + 0.5 ) / 100;
ss << avg << " ";
}
if( use_colors )
{
ss << "#[fg=default,bg=default]";
}
}
return ss.str();
}

26
openbsd/load.h
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@ -1,26 +0,0 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LOAD_H_
#define LOAD_H_
#include <string>
std::string load_string( bool );
#endif

26
openbsd/memory.h
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@ -1,26 +0,0 @@
/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MEMORY_H_
#define MEMORY_H_
#include <string>
std::string mem_string( bool );
#endif

21
osx/cpu.cc
View File

@ -21,6 +21,11 @@
#include "cpu.h"
uint8_t get_cpu_count()
{
return sysconf( _SC_NPROCESSORS_ONLN );
}
// OSX or BSD based system, use BSD APIs instead
// See: http://www.opensource.apple.com/source/xnu/xnu-201/osfmk/mach/host_info.h
// and: http://web.mit.edu/darwin/src/modules/xnu/osfmk/man/
@ -53,15 +58,15 @@ float cpu_percentage( unsigned int cpu_usage_delay )
host_cpu_load_info_data_t load2 = _get_cpu_percentage();
// Current load times
unsigned long long current_user = load1.cpu_ticks[CPU_STATE_USER];
unsigned long long current_system = load1.cpu_ticks[CPU_STATE_SYSTEM];
unsigned long long current_nice = load1.cpu_ticks[CPU_STATE_NICE];
unsigned long long current_idle = load1.cpu_ticks[CPU_STATE_IDLE];
unsigned long long current_user = load1.cpu_ticks[CP_USER];
unsigned long long current_system = load1.cpu_ticks[CP_SYS];
unsigned long long current_nice = load1.cpu_ticks[CP_NICE];
unsigned long long current_idle = load1.cpu_ticks[CP_IDLE];
// Next load times
unsigned long long next_user = load2.cpu_ticks[CPU_STATE_USER];
unsigned long long next_system = load2.cpu_ticks[CPU_STATE_SYSTEM];
unsigned long long next_nice = load2.cpu_ticks[CPU_STATE_NICE];
unsigned long long next_idle = load2.cpu_ticks[CPU_STATE_IDLE];
unsigned long long next_user = load2.cpu_ticks[CP_USER];
unsigned long long next_system = load2.cpu_ticks[CP_SYS];
unsigned long long next_nice = load2.cpu_ticks[CP_NICE];
unsigned long long next_idle = load2.cpu_ticks[CP_IDLE];
// Difference between the two
unsigned long long diff_user = next_user - current_user;
unsigned long long diff_system = next_system - current_system;

23
osx/cpu.h
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@ -1,23 +0,0 @@
/*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef CPU_H_
#define CPU_H_
float cpu_percentage ( unsigned );
#endif

89
osx/load.cc
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@ -1,89 +0,0 @@
/*
* Copyright 2012 Matthew McCormick
* Copyright 2013 Justin Crawford <Justasic@gmail.com>
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <string>
#include <sstream>
#include <fstream>
#include <cmath> // floorf()
#include <unistd.h>
#include <stdlib.h> // getloadavg()
#include "load.h"
#include "luts.h"
std::string load_string( bool use_colors = false )
{
std::ostringstream oss;
// Both apple and BSD style systems have these api calls
// Only get 3 load averages
const int nelem = 3;
double averages[nelem];
// based on:
// http://www.opensource.apple.com/source/Libc/Libc-262/gen/getloadavg.c
if( getloadavg( averages, nelem ) < 0 )
{
oss << "0.00 0.00 0.00"; // couldn't get averages.
}
else
{
for( int i = 0; i < nelem; ++i )
{
// Round to nearest, make sure this is
// only a 0.00 value not a 0.0000
float avg = floorf( static_cast<float>( averages[i] ) * 100 + 0.5 ) / 100;
oss << avg << " ";
}
}
std::string load_line( oss.str() );
oss.str( "" );
if( use_colors )
{
// Likely does not work on BSD, but not tested
unsigned number_of_cpus = sysconf( _SC_NPROCESSORS_ONLN );
std::istringstream iss( load_line.substr( 0, 4 ) );
float recent_load;
iss >> recent_load;
// colors range from zero to twice the number of
// cpu's for the most recent load metric
unsigned load_percent = static_cast< unsigned int >(
recent_load / number_of_cpus * 0.5f * 100.0f );
if( load_percent > 100 )
{
load_percent = 100;
}
oss << load_lut[load_percent];
}
oss << load_line.substr( 0, 14 );
if( use_colors )
{
oss << "#[fg=default,bg=default]";
}
return oss.str();
}

25
osx/load.h
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@ -1,25 +0,0 @@
/*
* Copyright 2012 Matthew McCormick
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LOAD_H_
#define LOAD_H_
#include <string>
std::string load_string( bool );
#endif

26
osx/memory.h
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@ -1,26 +0,0 @@
/*
* Copyright 2012 Matthew McCormick
* Copyright 2013 Justin Crawford <Justasic@gmail.com>
* Copyright 2015 Pawel 'l0ner' Soltys
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MEMORY_H_
#define MEMORY_H_
#include <string>
std::string mem_string( bool );
#endif