htop/linux/Platform.c at 2.2.0 · hishamhm/htop

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htop - linux/Platform.c

Released under the GNU GPL, see the COPYING file

in the source distribution for its full text.

#include "Platform.h"

#include "IOPriority.h"

#include "IOPriorityPanel.h"

#include "LinuxProcess.h"

#include "LinuxProcessList.h"

#include "Battery.h"

#include "Meter.h"

#include "CPUMeter.h"

#include "MemoryMeter.h"

#include "SwapMeter.h"

#include "TasksMeter.h"

#include "LoadAverageMeter.h"

#include "UptimeMeter.h"

#include "ClockMeter.h"

#include "HostnameMeter.h"

#include "LinuxProcess.h"

#include <math.h>

#include <assert.h>

#include <limits.h>

#include <stdio.h>

#include <stdlib.h>

/*{

#include "Action.h"

#include "MainPanel.h"

#include "BatteryMeter.h"

#include "LinuxProcess.h"

#include "SignalsPanel.h"

}*/

#ifndef CLAMP

#define CLAMP(x,low,high) (((x)>(high))?(high):(((x)<(low))?(low):(x)))

#endif

ProcessField Platform_defaultFields[] = { PID, USER, PRIORITY, NICE, M_SIZE, M_RESIDENT, M_SHARE, STATE, PERCENT_CPU, PERCENT_MEM, TIME, COMM, 0 };

//static ProcessField defaultIoFields[] = { PID, IO_PRIORITY, USER, IO_READ_RATE, IO_WRITE_RATE, IO_RATE, COMM, 0 };

int Platform_numberOfFields = LAST_PROCESSFIELD;

const SignalItem Platform_signals[] = {

{ .name = " 0 Cancel", .number = 0 },

{ .name = " 1 SIGHUP", .number = 1 },

{ .name = " 2 SIGINT", .number = 2 },

{ .name = " 3 SIGQUIT", .number = 3 },

{ .name = " 4 SIGILL", .number = 4 },

{ .name = " 5 SIGTRAP", .number = 5 },

{ .name = " 6 SIGABRT", .number = 6 },

{ .name = " 6 SIGIOT", .number = 6 },

{ .name = " 7 SIGBUS", .number = 7 },

{ .name = " 8 SIGFPE", .number = 8 },

{ .name = " 9 SIGKILL", .number = 9 },

{ .name = "10 SIGUSR1", .number = 10 },

{ .name = "11 SIGSEGV", .number = 11 },

{ .name = "12 SIGUSR2", .number = 12 },

{ .name = "13 SIGPIPE", .number = 13 },

{ .name = "14 SIGALRM", .number = 14 },

{ .name = "15 SIGTERM", .number = 15 },

{ .name = "16 SIGSTKFLT", .number = 16 },

{ .name = "17 SIGCHLD", .number = 17 },

{ .name = "18 SIGCONT", .number = 18 },

{ .name = "19 SIGSTOP", .number = 19 },

{ .name = "20 SIGTSTP", .number = 20 },

{ .name = "21 SIGTTIN", .number = 21 },

{ .name = "22 SIGTTOU", .number = 22 },

{ .name = "23 SIGURG", .number = 23 },

{ .name = "24 SIGXCPU", .number = 24 },

{ .name = "25 SIGXFSZ", .number = 25 },

{ .name = "26 SIGVTALRM", .number = 26 },

{ .name = "27 SIGPROF", .number = 27 },

{ .name = "28 SIGWINCH", .number = 28 },

{ .name = "29 SIGIO", .number = 29 },

{ .name = "29 SIGPOLL", .number = 29 },

{ .name = "30 SIGPWR", .number = 30 },

{ .name = "31 SIGSYS", .number = 31 },

};

const unsigned int Platform_numberOfSignals = sizeof(Platform_signals)/sizeof(SignalItem);

static Htop_Reaction Platform_actionSetIOPriority(State* st) {

Panel* panel = st->panel;

LinuxProcess* p = (LinuxProcess*) Panel_getSelected(panel);

if (!p) return HTOP_OK;

IOPriority ioprio = p->ioPriority;

Panel* ioprioPanel = IOPriorityPanel_new(ioprio);

void* set = Action_pickFromVector(st, ioprioPanel, 21);

if (set) {

IOPriority ioprio = IOPriorityPanel_getIOPriority(ioprioPanel);

bool ok = MainPanel_foreachProcess((MainPanel*)panel, (MainPanel_ForeachProcessFn) LinuxProcess_setIOPriority, (Arg){ .i = ioprio }, NULL);

if (!ok)

beep();

}

Panel_delete((Object*)ioprioPanel);

return HTOP_REFRESH | HTOP_REDRAW_BAR | HTOP_UPDATE_PANELHDR;

}

void Platform_setBindings(Htop_Action* keys) {

keys['i'] = Platform_actionSetIOPriority;

}

MeterClass* Platform_meterTypes[] = {

&CPUMeter_class,

&ClockMeter_class,

&LoadAverageMeter_class,

&LoadMeter_class,

&MemoryMeter_class,

&SwapMeter_class,

&TasksMeter_class,

&UptimeMeter_class,

&BatteryMeter_class,

&HostnameMeter_class,

&AllCPUsMeter_class,

&AllCPUs2Meter_class,

&LeftCPUsMeter_class,

&RightCPUsMeter_class,

&LeftCPUs2Meter_class,

&RightCPUs2Meter_class,

&BlankMeter_class,

NULL

};

int Platform_getUptime() {

double uptime = 0;

FILE* fd = fopen(PROCDIR "/uptime", "r");

if (fd) {

int n = fscanf(fd, "%64lf", &uptime);

fclose(fd);

if (n <= 0) return 0;

}

return (int) floor(uptime);

}

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

int activeProcs, totalProcs, lastProc;

* *five = 0; *fifteen = 0;

FILE *fd = fopen(PROCDIR "/loadavg", "r");

if (fd) {

int total = fscanf(fd, "%32lf %32lf %32lf %32d/%32d %32d", one, five, fifteen,

&activeProcs, &totalProcs, &lastProc);

(void) total;

assert(total == 6);

fclose(fd);

}

int Platform_getMaxPid() {

FILE* file = fopen(PROCDIR "/sys/kernel/pid_max", "r");

if (!file) return -1;

int maxPid = 4194303;

int match = fscanf(file, "%32d", &maxPid);

(void) match;

fclose(file);

return maxPid;

}

double Platform_setCPUValues(Meter* this, int cpu) {

LinuxProcessList* pl = (LinuxProcessList*) this->pl;

CPUData* cpuData = &(pl->cpus[cpu]);

double total = (double) ( cpuData->totalPeriod == 0 ? 1 : cpuData->totalPeriod);

double percent;

double* v = this->values;

v[CPU_METER_NICE] = cpuData->nicePeriod / total * 100.0;

v[CPU_METER_NORMAL] = cpuData->userPeriod / total * 100.0;

if (this->pl->settings->detailedCPUTime) {

v[CPU_METER_KERNEL] = cpuData->systemPeriod / total * 100.0;

v[CPU_METER_IRQ] = cpuData->irqPeriod / total * 100.0;

v[CPU_METER_SOFTIRQ] = cpuData->softIrqPeriod / total * 100.0;

v[CPU_METER_STEAL] = cpuData->stealPeriod / total * 100.0;

v[CPU_METER_GUEST] = cpuData->guestPeriod / total * 100.0;

v[CPU_METER_IOWAIT] = cpuData->ioWaitPeriod / total * 100.0;

Meter_setItems(this, 8);

if (this->pl->settings->accountGuestInCPUMeter) {

percent = v[0]+v[1]+v[2]+v[3]+v[4]+v[5]+v[6];

} else {

percent = v[0]+v[1]+v[2]+v[3]+v[4];

}

} else {

v[2] = cpuData->systemAllPeriod / total * 100.0;

v[3] = (cpuData->stealPeriod + cpuData->guestPeriod) / total * 100.0;

Meter_setItems(this, 4);

percent = v[0]+v[1]+v[2]+v[3];

}

percent = CLAMP(percent, 0.0, 100.0);

if (isnan(percent)) percent = 0.0;

return percent;

}

void Platform_setMemoryValues(Meter* this) {

ProcessList* pl = (ProcessList*) this->pl;

long int usedMem = pl->usedMem;

long int buffersMem = pl->buffersMem;

long int cachedMem = pl->cachedMem;

usedMem -= buffersMem + cachedMem;

this->total = pl->totalMem;

this->values[0] = usedMem;

this->values[1] = buffersMem;

this->values[2] = cachedMem;

}

void Platform_setSwapValues(Meter* this) {

ProcessList* pl = (ProcessList*) this->pl;

this->total = pl->totalSwap;

this->values[0] = pl->usedSwap;

}

char* Platform_getProcessEnv(pid_t pid) {

char procname[32+1];

xSnprintf(procname, 32, "/proc/%d/environ", pid);

FILE* fd = fopen(procname, "r");

char *env = NULL;

if (fd) {

size_t capacity = 4096, size = 0, bytes;

env = xMalloc(capacity);

while (env && (bytes = fread(env+size, 1, capacity-size, fd)) > 0) {

size += bytes;

capacity *= 2;

env = xRealloc(env, capacity);

}

fclose(fd);

if (size < 2 || env[size-1] || env[size-2]) {

if (size + 2 < capacity) {

env = xRealloc(env, capacity+2);

}

env[size] = 0;

env[size+1] = 0;

}

return env;

}

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