htop/pcp/Platform.h

#ifndef HEADER_Platform
#define HEADER_Platform
/*
htop - pcp/Platform.h
(C) 2014 Hisham H. Muhammad
(C) 2020 htop dev team
(C) 2020-2021 Red Hat, Inc.  All Rights Reserved.
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/

#include <ctype.h>
#include <stdbool.h>
#include <pcp/pmapi.h>

#undef PACKAGE_URL
#undef PACKAGE_NAME
#undef PACKAGE_STRING
#undef PACKAGE_TARNAME
#undef PACKAGE_VERSION
#undef PACKAGE_BUGREPORT

#include "Action.h"
#include "BatteryMeter.h"
#include "DiskIOMeter.h"
#include "Meter.h"
#include "NetworkIOMeter.h"
#include "Process.h"
#include "ProcessLocksScreen.h"
#include "SignalsPanel.h"
#include "SysArchMeter.h"


extern ProcessField Platform_defaultFields[];

extern int Platform_numberOfFields;

extern const SignalItem Platform_signals[];

extern const unsigned int Platform_numberOfSignals;

extern const MeterClass* const Platform_meterTypes[];

void Platform_init(void);

void Platform_done(void);

void Platform_setBindings(Htop_Action* keys);

int Platform_getUptime(void);

void Platform_getLoadAverage(double* one, double* five, double* fifteen);

long long Platform_getBootTime(void);

int Platform_getMaxCPU(void);

int Platform_getMaxPid(void);

double Platform_setCPUValues(Meter* this, int cpu);

void Platform_setMemoryValues(Meter* this);

void Platform_setSwapValues(Meter* this);

void Platform_setZramValues(Meter* this);

void Platform_setZfsArcValues(Meter* this);

void Platform_setZfsCompressedArcValues(Meter* this);

char* Platform_getProcessEnv(pid_t pid);

char* Platform_getInodeFilename(pid_t pid, ino_t inode);

FileLocks_ProcessData* Platform_getProcessLocks(pid_t pid);

void Platform_getPressureStall(const char *file, bool some, double* ten, double* sixty, double* threehundred);

bool Platform_getDiskIO(DiskIOData* data);

bool Platform_getNetworkIO(NetworkIOData* data);

void Platform_getBattery(double *percent, ACPresence *isOnAC);

void Platform_getHostname(char* buffer, size_t size);

void Platform_getRelease(char** string);


typedef enum Metric_ {
   PCP_CONTROL_THREADS,		/* proc.control.perclient.threads */

   PCP_HINV_NCPU,		/* hinv.ncpu */
   PCP_HINV_CPUCLOCK,		/* hinv.cpu.clock */
   PCP_UNAME_SYSNAME,		/* kernel.uname.sysname */
   PCP_UNAME_RELEASE,		/* kernel.uname.release */
   PCP_UNAME_MACHINE,		/* kernel.uname.machine */
   PCP_UNAME_DISTRO,		/* kernel.uname.distro */
   PCP_LOAD_AVERAGE, 		/* kernel.all.load */
   PCP_PID_MAX,			/* kernel.all.pid_max */
   PCP_UPTIME,			/* kernel.all.uptime */
   PCP_BOOTTIME,		/* kernel.all.boottime */
   PCP_CPU_USER,		/* kernel.all.cpu.user */
   PCP_CPU_NICE,		/* kernel.all.cpu.nice */
   PCP_CPU_SYSTEM,		/* kernel.all.cpu.sys */
   PCP_CPU_IDLE,		/* kernel.all.cpu.idle */
   PCP_CPU_IOWAIT, 		/* kernel.all.cpu.wait.total */
   PCP_CPU_IRQ,			/* kernel.all.cpu.intr */
   PCP_CPU_SOFTIRQ,		/* kernel.all.cpu.irq.soft */
   PCP_CPU_STEAL,		/* kernel.all.cpu.steal */
   PCP_CPU_GUEST,		/* kernel.all.cpu.guest */
   PCP_CPU_GUESTNICE,		/* kernel.all.cpu.guest_nice */
   PCP_PERCPU_USER,		/* kernel.percpu.cpu.user */
   PCP_PERCPU_NICE,		/* kernel.percpu.cpu.nice */
   PCP_PERCPU_SYSTEM,		/* kernel.percpu.cpu.sys */
   PCP_PERCPU_IDLE,		/* kernel.percpu.cpu.idle */
   PCP_PERCPU_IOWAIT,		/* kernel.percpu.cpu.wait.total */
   PCP_PERCPU_IRQ,		/* kernel.percpu.cpu.intr */
   PCP_PERCPU_SOFTIRQ,		/* kernel.percpu.cpu.irq.soft */
   PCP_PERCPU_STEAL,		/* kernel.percpu.cpu.steal */
   PCP_PERCPU_GUEST,		/* kernel.percpu.cpu.guest */
   PCP_PERCPU_GUESTNICE,	/* kernel.percpu.cpu.guest_nice */
   PCP_MEM_TOTAL,		/* mem.physmem */
   PCP_MEM_FREE,		/* mem.util.free */
   PCP_MEM_BUFFERS,		/* mem.util.bufmem */
   PCP_MEM_CACHED,		/* mem.util.cached */
   PCP_MEM_AVAILABLE,		/* mem.util.available */
   PCP_MEM_SRECLAIM,		/* mem.util.slabReclaimable */
   PCP_MEM_SWAPCACHED,		/* mem.util.swapCached */
   PCP_MEM_SWAPTOTAL,		/* mem.util.swapTotal */
   PCP_MEM_SWAPFREE,		/* mem.util.swapFree */
   PCP_DISK_READB,		/* disk.all.read_bytes */
   PCP_DISK_WRITEB,		/* disk.all.write_bytes */
   PCP_DISK_ACTIVE,		/* disk.all.avactive */
   PCP_NET_RECVB,		/* network.all.in.bytes */
   PCP_NET_SENDB,		/* network.all.out.bytes */
   PCP_NET_RECVP,		/* network.all.in.packets */
   PCP_NET_SENDP,		/* network.all.out.packets */
   PCP_PSI_CPUSOME,		/* kernel.all.pressure.cpu.some.avg */
   PCP_PSI_IOSOME,		/* kernel.all.pressure.io.some.avg */
   PCP_PSI_IOFULL,		/* kernel.all.pressure.io.full.avg */
   PCP_PSI_MEMSOME,		/* kernel.all.pressure.memory.some.avg */
   PCP_PSI_MEMFULL,		/* kernel.all.pressure.memory.full.avg */
   PCP_ZFS_ARC_ANON_SIZE,        /* zfs.arc.anon_size */
   PCP_ZFS_ARC_BONUS_SIZE,       /* zfs.arc.bonus_size */
   PCP_ZFS_ARC_COMPRESSED_SIZE,  /* zfs.arc.compressed_size */
   PCP_ZFS_ARC_UNCOMPRESSED_SIZE,  /* zfs.arc.uncompressed_size */
   PCP_ZFS_ARC_C_MAX,            /* zfs.arc.c_max */
   PCP_ZFS_ARC_DBUF_SIZE,        /* zfs.arc.dbuf_size */
   PCP_ZFS_ARC_DNODE_SIZE,       /* zfs.arc.dnode_size */
   PCP_ZFS_ARC_HDR_SIZE,         /* zfs.arc.hdr_size */
   PCP_ZFS_ARC_MFU_SIZE,         /* zfs.arc.mfu_size */
   PCP_ZFS_ARC_MRU_SIZE,         /* zfs.arc.mru_size */
   PCP_ZFS_ARC_SIZE,             /* zfs.arc.size */
   PCP_ZRAM_CAPACITY,		/* zram.capacity */
   PCP_ZRAM_ORIGINAL,		/* zram.mm_stat.data_size.original */
   PCP_ZRAM_COMPRESSED,		/* zram.mm_stat.data_size.compressed */

   PCP_PROC_PID,		/* proc.psinfo.pid */
   PCP_PROC_PPID,		/* proc.psinfo.ppid */
   PCP_PROC_TGID,		/* proc.psinfo.tgid */
   PCP_PROC_PGRP,		/* proc.psinfo.pgrp */
   PCP_PROC_SESSION,		/* proc.psinfo.session */
   PCP_PROC_STATE,		/* proc.psinfo.sname */
   PCP_PROC_TTY,		/* proc.psinfo.tty */
   PCP_PROC_TTYPGRP,		/* proc.psinfo.tty_pgrp */
   PCP_PROC_MINFLT,		/* proc.psinfo.minflt */
   PCP_PROC_MAJFLT,		/* proc.psinfo.maj_flt */
   PCP_PROC_CMINFLT,		/* proc.psinfo.cmin_flt */
   PCP_PROC_CMAJFLT,		/* proc.psinfo.cmaj_flt */
   PCP_PROC_UTIME,		/* proc.psinfo.utime */
   PCP_PROC_STIME,		/* proc.psinfo.stime */
   PCP_PROC_CUTIME,		/* proc.psinfo.cutime */
   PCP_PROC_CSTIME,		/* proc.psinfo.cstime */
   PCP_PROC_PRIORITY,		/* proc.psinfo.priority */
   PCP_PROC_NICE,		/* proc.psinfo.nice */
   PCP_PROC_THREADS,		/* proc.psinfo.threads */
   PCP_PROC_STARTTIME,		/* proc.psinfo.start_time */
   PCP_PROC_PROCESSOR,		/* proc.psinfo.processor */
   PCP_PROC_CMD,		/* proc.psinfo.cmd */
   PCP_PROC_PSARGS,		/* proc.psinfo.psargs */
   PCP_PROC_CGROUPS,		/* proc.psinfo.cgroups */
   PCP_PROC_OOMSCORE,		/* proc.psinfo.oom_score */
   PCP_PROC_VCTXSW,		/* proc.psinfo.vctxsw */
   PCP_PROC_NVCTXSW,		/* proc.psinfo.nvctxsw */
   PCP_PROC_LABELS,		/* proc.psinfo.labels */
   PCP_PROC_ENVIRON,		/* proc.psinfo.environ */
   PCP_PROC_TTYNAME,		/* proc.psinfo.ttyname */

   PCP_PROC_ID_UID,		/* proc.id.uid */
   PCP_PROC_ID_USER,		/* proc.id.uid_nm */

   PCP_PROC_IO_RCHAR,		/* proc.io.rchar */
   PCP_PROC_IO_WCHAR,		/* proc.io.wchar */
   PCP_PROC_IO_SYSCR,		/* proc.io.syscr */
   PCP_PROC_IO_SYSCW,		/* proc.io.syscw */
   PCP_PROC_IO_READB,		/* proc.io.read_bytes */
   PCP_PROC_IO_WRITEB,		/* proc.io.write_bytes */
   PCP_PROC_IO_CANCELLED,	/* proc.io.cancelled_write_bytes */

   PCP_PROC_MEM_SIZE,		/* proc.memory.size */
   PCP_PROC_MEM_RSS,		/* proc.memory.rss */
   PCP_PROC_MEM_SHARE,		/* proc.memory.share */
   PCP_PROC_MEM_TEXTRS,		/* proc.memory.textrss */
   PCP_PROC_MEM_LIBRS,		/* proc.memory.librss */
   PCP_PROC_MEM_DATRS,		/* proc.memory.datrss */
   PCP_PROC_MEM_DIRTY,		/* proc.memory.dirty */

   PCP_PROC_SMAPS_PSS,		/* proc.smaps.pss */
   PCP_PROC_SMAPS_SWAP,		/* proc.smaps.swap */
   PCP_PROC_SMAPS_SWAPPSS,	/* proc.smaps.swappss */

   PCP_METRIC_COUNT		/* total metric count */
} Metric;

void Metric_enable(Metric metric, bool enable);

bool Metric_enabled(Metric metric);

void Metric_enableThreads(void);

bool Metric_fetch(struct timeval *timestamp);

bool Metric_iterate(Metric metric, int* instp, int* offsetp);

pmAtomValue* Metric_values(Metric metric, pmAtomValue *atom, int count, int type);

int Metric_instanceCount(Metric metric);

int Metric_instanceOffset(Metric metric, int inst);

pmAtomValue *Metric_instance(Metric metric, int inst, int offset, pmAtomValue *atom, int type);

#endif