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/*
htop - linux/Platform.c
(C) 2014 Hisham H. Muhammad
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 <signal.h>
#include <string.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, EFFECTIVE_USER, PRIORITY, NICE, M_SIZE, M_RESIDENT, M_SHARE, STATE, PERCENT_CPU, PERCENT_MEM, TIME, COMM, 0 };
//static ProcessField defaultIoFields[] = { PID, IO_PRIORITY, EFFECTIVE_USER, IO_READ_RATE, IO_WRITE_RATE, IO_RATE, COMM, 0 };
int Platform_numberOfFields = LAST_PROCESSFIELD;
const SignalItem Platform_signals[] = {
{ .name = "Cancel", .number = 0 },
#define SIG(NAME) { .name = #NAME, .number = SIG##NAME }
SIG(HUP),
SIG(INT),
SIG(QUIT),
SIG(ILL),
SIG(TRAP),
SIG(ABRT),
#ifdef SIGIOT
SIG(IOT),
#endif
#ifdef SIGEMT
SIG(EMT),
#endif
SIG(BUS),
SIG(FPE),
SIG(KILL),
SIG(USR1),
SIG(SEGV),
SIG(USR2),
SIG(PIPE),
SIG(ALRM),
SIG(TERM),
#ifdef SIGSTKFLT
SIG(STKFLT),
#endif
SIG(CHLD),
SIG(CONT),
SIG(STOP),
SIG(TSTP),
SIG(TTIN),
SIG(TTOU),
SIG(URG),
SIG(XCPU),
SIG(XFSZ),
SIG(VTALRM),
SIG(PROF),
SIG(WINCH),
SIG(IO),
SIG(POLL),
SIG(PWR),
#ifdef SIGINFO
SIG(INFO),
#endif
#ifdef SIGLOST
SIG(LOST),
#endif
#ifdef SIGSYS
SIG(SYS),
#endif
#undef SIG
};
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;
FILE *f = fopen(PROCDIR "/uptime", "r");
if(!f) return -1;
int n = fscanf(f, "%64lf", &uptime);
fclose(f);
if (n < 1) return -1;
return (int) floor(uptime);
}
void Platform_getLoadAverage(double* one, double* five, double* fifteen) {
*one = 0; *five = 0; *fifteen = 0;
FILE *f = fopen(PROCDIR "/loadavg", "r");
if(!f) return;
fscanf(f, "%32lf %32lf %32lf", one, five, fifteen);
fclose(f);
}
int Platform_getMaxPid() {
#ifdef __CYGWIN__
/* Cygwin uses Windows PID directly, and Windows didn't have a hard
* limit for processes; the maximum PID value based on data type
* would be UINT32_MAX - 1, which is too big to use here. */
return 4194304;
#else
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;
#endif
}
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(Process *proc) {
char path[32];
xSnprintf(path, sizeof path, PROCDIR "/%d/environ", (int)proc->pid);
FILE *f = fopen(path, "r");
if(!f) return NULL;
char **env = xMalloc(sizeof(char *));
unsigned int i = 0;
char buffer[4096];
int c;
do {
size_t len = 0;
while((c = fgetc(f)) != EOF && c) {
if(len < sizeof buffer) buffer[len++] = c;
}
if(!len) continue;
env[i] = xMalloc(len + 1);
memcpy(env[i], buffer, len);
env[i][len] = 0;
env = xRealloc(env, (++i + 1) * sizeof(char *));
} while(c != EOF);
fclose(f);
env[i] = NULL;
return env;
}