pull initial *BDS port from Justin Crawford (see github.com/Justasic/tmux-mem-cpu-load)
This commit is contained in:
Pawel "l0ner" Soltys
parent
220d260673
commit
6b8b746a0f
145
bsd/FreeBSD.cpp
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145
bsd/FreeBSD.cpp
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/*
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* Copyright 2012 Matthew McCormick
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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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// This file was Authored by Justin Crawford <Justasic@gmail.com>
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// Based on: https://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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#include <unistd.h>
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#include <iostream>
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#include <sstream>
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#include <cerrno>
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#include <string>
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#include <stdlib.h>
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#include <cmath>
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#include <sys/sysctl.h>
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#include <sys/types.h>
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// Memory Sizes
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#define KILOBYTES(x) ((x)/1024)
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#define MEGABYTES(x) (KILOBYTES((x))/1024)
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#define GIGABYTES(x) (MEGABYTES((x))/1024)
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// CPU percentages stuff
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#define CP_USER 0
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#define CP_NICE 1
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#define CP_SYS 2
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#define CP_INTR 3
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#define CP_IDLE 4
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#define CPUSTATES 5
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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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fprintf(stderr, "sysctl(%s...) failed: %s\n", name, strerror(errno));
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exit(23);
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}
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if (nlen != len)
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{
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fprintf(stderr, "sysctl(%s...) expected %lu bytes, got %lu bytes\n", name, (unsigned long)len, (unsigned long)nlen);
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//exit(23);
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}
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}
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float cpu_percentage(unsigned int cpu_usage_delay)
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{
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int64_t load1[CPUSTATES];
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int64_t load2[CPUSTATES];
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GETSYSCTL("kern.cp_time", load1);
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usleep(cpu_usage_delay);
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GETSYSCTL("kern.cp_time", load2);
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// Current load times
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unsigned long long current_user = load1[CP_USER];
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unsigned long long current_system = load1[CP_SYS];
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unsigned long long current_nice = load1[CP_NICE];
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unsigned long long current_idle = load1[CP_IDLE];
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// Next load times
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unsigned long long next_user = load2[CP_USER];
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unsigned long long next_system = load2[CP_SYS];
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unsigned long long next_nice = load2[CP_NICE];
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unsigned long long next_idle = load2[CP_IDLE];
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// Difference between the two
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unsigned long long diff_user = next_user - current_user;
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unsigned long long diff_system = next_system - current_system;
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unsigned long long diff_nice = next_nice - current_nice;
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unsigned long long diff_idle = next_idle - current_idle;
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return static_cast<float>(diff_user + diff_system + diff_nice)/static_cast<float>(diff_user + diff_system + diff_nice + diff_idle)*100.0;
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}
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std::string mem_string()
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{
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// These values are in bytes
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int64_t total_mem = 0;
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int64_t used_mem = 0;
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int64_t unused_mem = 0;
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int32_t inactive_mem = 0;
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int32_t active_mem = 0;
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int32_t free_mem = 0;
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int32_t wired_mem = 0;
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int32_t page_size = 0;
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int32_t cache_mem = 0;
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std::ostringstream oss;
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// Get total physical memory, page size, and some other needed info
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GETSYSCTL("hw.realmem", total_mem);
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GETSYSCTL("hw.pagesize", page_size);
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GETSYSCTL("vm.stats.vm.v_free_count", free_mem);
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GETSYSCTL("vm.stats.vm.v_inactive_count", inactive_mem);
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GETSYSCTL("vm.stats.vm.v_cache_count", cache_mem);
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GETSYSCTL("vm.stats.vm.v_wire_count", wired_mem);
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GETSYSCTL("vm.stats.vm.v_active_count", active_mem);
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// Get all memory which can be allocated
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//unused_mem = (cache_mem + free_mem) * page_size;
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used_mem = ((int64_t)active_mem + (int64_t)inactive_mem + (int64_t)wired_mem) * (int64_t)page_size;
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oss << MEGABYTES(used_mem) << '/' << MEGABYTES(total_mem) << "MB";
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return oss.str();
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}
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// Load Averages
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std::string load_string()
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{
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std::stringstream ss;
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// Only get 3 load averages
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int nelem = 3;
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double averages[3];
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// based on: http://www.opensource.apple.com/source/Libc/Libc-262/gen/getloadavg.c
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if(getloadavg(averages, nelem) < 0)
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ss << "0.00 0.00 0.00"; // couldn't get averages.
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else
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{
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for(int i = 0; i < nelem; ++i)
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{
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// Round to nearest, make sure this is only a 0.00 value not a 0.0000
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float avg = floorf(static_cast<float>(averages[i]) * 100 + 0.5) / 100;
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ss << avg << " ";
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}
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}
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return ss.str();
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}
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145
bsd/OpenBSD.cpp
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145
bsd/OpenBSD.cpp
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@ -0,0 +1,145 @@
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/*
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* Copyright 2012 Matthew McCormick
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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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// This file was Authored by Justin Crawford <Justasic@gmail.com>
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// Based on: https://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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#error ToDo: OpenBSD. This file is incomplete and likely will not compile if you remove this error (it is here to tell you it's unfinished)
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#include <unistd.h>
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#include <iostream>
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#include <sstream>
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#include <cerrno>
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#include <string>
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#include <stdlib.h>
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#include <cmath>
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#include <sys/sysctl.h>
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#include <sys/types.h>
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// Memory Sizes
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#define KILOBYTES(x) ((x)/1024)
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#define MEGABYTES(x) (KILOBYTES((x))/1024)
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#define GIGABYTES(x) (MEGABYTES((x))/1024)
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// CPU percentages stuff
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#define CP_USER 0
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#define CP_NICE 1
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#define CP_SYS 2
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#define CP_INTR 3
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#define CP_IDLE 4
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#define CPUSTATES 5
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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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fprintf(stderr, "sysctl(%s...) failed: %s\n", name, strerror(errno));
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exit(23);
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}
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if (nlen != len)
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{
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fprintf(stderr, "sysctl(%s...) expected %lu bytes, got %lu bytes\n", name, (unsigned long)len, (unsigned long)nlen);
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//exit(23);
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}
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}
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float cpu_percentage(unsigned int cpu_usage_delay)
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{
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int64_t load1[CPUSTATES];
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int64_t load2[CPUSTATES];
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GETSYSCTL("kern.cp_time", load1);
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usleep(cpu_usage_delay);
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GETSYSCTL("kern.cp_time", load2);
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// Current load times
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unsigned long long current_user = load1[CP_USER];
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unsigned long long current_system = load1[CP_SYS];
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unsigned long long current_nice = load1[CP_NICE];
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unsigned long long current_idle = load1[CP_IDLE];
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// Next load times
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unsigned long long next_user = load2[CP_USER];
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unsigned long long next_system = load2[CP_SYS];
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unsigned long long next_nice = load2[CP_NICE];
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unsigned long long next_idle = load2[CP_IDLE];
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// Difference between the two
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unsigned long long diff_user = next_user - current_user;
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unsigned long long diff_system = next_system - current_system;
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unsigned long long diff_nice = next_nice - current_nice;
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unsigned long long diff_idle = next_idle - current_idle;
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return static_cast<float>(diff_user + diff_system + diff_nice)/static_cast<float>(diff_user + diff_system + diff_nice + diff_idle)*100.0;
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}
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std::string mem_string()
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{
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// These values are in bytes
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int64_t total_mem = 0;
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int64_t used_mem = 0;
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int64_t unused_mem = 0;
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int32_t inactive_mem = 0;
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int32_t active_mem = 0;
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int32_t free_mem = 0;
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int32_t wired_mem = 0;
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int32_t page_size = 0;
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int32_t cache_mem = 0;
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std::ostringstream oss;
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// Get total physical memory, page size, and some other needed info
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GETSYSCTL("hw.realmem", total_mem);
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GETSYSCTL("hw.pagesize", page_size);
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GETSYSCTL("vm.stats.vm.v_free_count", free_mem);
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GETSYSCTL("vm.stats.vm.v_inactive_count", inactive_mem);
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GETSYSCTL("vm.stats.vm.v_cache_count", cache_mem);
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GETSYSCTL("vm.stats.vm.v_wire_count", wired_mem);
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// Get all memory which can be allocated
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//unused_mem = (inactive_mem + cache_mem + free_mem) * page_size;
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used_mem = ((int64_t)active_mem + (int64_t)wired_mem + (int64_t)inactive_mem) * (int64_t)page_size;
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oss << MEGABYTES(used_mem) << '/' << MEGABYTES(total_mem) << "MB";
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return oss.str();
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}
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// Load Averages
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std::string load_string()
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{
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std::stringstream ss;
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// Only get 3 load averages
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int nelem = 3;
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double averages[3];
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// based on: http://www.opensource.apple.com/source/Libc/Libc-262/gen/getloadavg.c
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if(getloadavg(averages, nelem) < 0)
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ss << "0.00 0.00 0.00"; // couldn't get averages.
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else
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{
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for(int i = 0; i < nelem; ++i)
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{
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// Round to nearest, make sure this is only a 0.00 value not a 0.0000
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float avg = floorf(static_cast<float>(averages[i]) * 100 + 0.5) / 100;
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ss << avg << " ";
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}
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}
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return ss.str();
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}
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