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f0ed0fdafb
This commit is based on exploratory work by Sohaib Mohamed. The end goal is two-fold - to support addition of Meters we build via configuration files for both the PCP platform and for scripts ( https://github.com/htop-dev/htop/issues/526 ) Here, we focus on generic code and the PCP support. A new class DynamicMeter is introduced - it uses the special case 'param' field handling that previously was used only by the CPUMeter, such that every runtime-configured Meter is given a unique identifier. Unlike with the CPUMeter this is used internally only. When reading/writing to htoprc instead of CPU(N) - where N is an integer param (CPU number) - we use the string name for each meter. For example, if we have a configuration for a DynamicMeter for some Redis metrics, we might read and write "Dynamic(redis)". This identifier is subsequently matched (back) up to the configuration file so we're able to re-create arbitrary user configurations. The PCP platform configuration file format is fairly simple. We expand configs from several directories, including the users homedir alongside htoprc (below htop/meters/) and also /etc/pcp/htop/meters. The format will be described via a new pcp-htop(5) man page, but its basically ini-style and each Meter has one or more metric expressions associated, as well as specifications for labels, color and so on via a dot separated notation for individual metrics within the Meter. A few initial sample configuration files are provided below ./pcp/meters that give the general idea. The PCP "derived" metric specification - see pmRegisterDerived(3) - is used as the syntax for specifying metrics in PCP DynamicMeters.
121 lines
2.7 KiB
C
121 lines
2.7 KiB
C
#ifndef HEADER_LinuxProcessList
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#define HEADER_LinuxProcessList
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/*
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htop - LinuxProcessList.h
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(C) 2014 Hisham H. Muhammad
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Released under the GNU GPLv2, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "config.h"
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#include <stdbool.h>
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#include <sys/types.h>
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#include "Hashtable.h"
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#include "ProcessList.h"
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#include "UsersTable.h"
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#include "ZramStats.h"
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#include "zfs/ZfsArcStats.h"
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#define HTOP_HUGEPAGE_BASE_SHIFT 16
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#define HTOP_HUGEPAGE_COUNT 24
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typedef struct CPUData_ {
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unsigned long long int totalTime;
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unsigned long long int userTime;
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unsigned long long int systemTime;
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unsigned long long int systemAllTime;
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unsigned long long int idleAllTime;
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unsigned long long int idleTime;
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unsigned long long int niceTime;
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unsigned long long int ioWaitTime;
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unsigned long long int irqTime;
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unsigned long long int softIrqTime;
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unsigned long long int stealTime;
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unsigned long long int guestTime;
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unsigned long long int totalPeriod;
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unsigned long long int userPeriod;
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unsigned long long int systemPeriod;
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unsigned long long int systemAllPeriod;
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unsigned long long int idleAllPeriod;
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unsigned long long int idlePeriod;
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unsigned long long int nicePeriod;
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unsigned long long int ioWaitPeriod;
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unsigned long long int irqPeriod;
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unsigned long long int softIrqPeriod;
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unsigned long long int stealPeriod;
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unsigned long long int guestPeriod;
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double frequency;
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#ifdef HAVE_SENSORS_SENSORS_H
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double temperature;
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#endif
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} CPUData;
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typedef struct TtyDriver_ {
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char* path;
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unsigned int major;
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unsigned int minorFrom;
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unsigned int minorTo;
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} TtyDriver;
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typedef struct LinuxProcessList_ {
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ProcessList super;
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CPUData* cpus;
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TtyDriver* ttyDrivers;
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bool haveSmapsRollup;
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#ifdef HAVE_DELAYACCT
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struct nl_sock* netlink_socket;
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int netlink_family;
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#endif
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memory_t totalHugePageMem;
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memory_t usedHugePageMem[HTOP_HUGEPAGE_COUNT];
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memory_t availableMem;
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ZfsArcStats zfs;
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ZramStats zram;
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} LinuxProcessList;
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#ifndef PROCDIR
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#define PROCDIR "/proc"
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#endif
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#ifndef PROCCPUINFOFILE
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#define PROCCPUINFOFILE PROCDIR "/cpuinfo"
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#endif
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#ifndef PROCSTATFILE
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#define PROCSTATFILE PROCDIR "/stat"
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#endif
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#ifndef PROCMEMINFOFILE
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#define PROCMEMINFOFILE PROCDIR "/meminfo"
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#endif
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#ifndef PROCARCSTATSFILE
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#define PROCARCSTATSFILE PROCDIR "/spl/kstat/zfs/arcstats"
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#endif
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#ifndef PROCTTYDRIVERSFILE
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#define PROCTTYDRIVERSFILE PROCDIR "/tty/drivers"
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#endif
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#ifndef PROC_LINE_LENGTH
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#define PROC_LINE_LENGTH 4096
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#endif
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ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, Hashtable* pidMatchList, uid_t userId);
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void ProcessList_delete(ProcessList* pl);
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void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate);
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#endif
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