mirror of https://github.com/xzeldon/htop.git
240 lines
7.4 KiB
C
240 lines
7.4 KiB
C
/*
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htop - linux/Platform.c
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(C) 2014 Hisham H. Muhammad
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Released under the GNU GPL, 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 "Platform.h"
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#include "IOPriority.h"
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#include "IOPriorityPanel.h"
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#include "LinuxProcess.h"
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#include "LinuxProcessList.h"
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#include "Battery.h"
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#include "Meter.h"
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#include "CPUMeter.h"
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#include "MemoryMeter.h"
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#include "SwapMeter.h"
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#include "TasksMeter.h"
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#include "LoadAverageMeter.h"
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#include "UptimeMeter.h"
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#include "ClockMeter.h"
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#include "HostnameMeter.h"
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#include "LinuxProcess.h"
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#include <math.h>
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#include <assert.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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/*{
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#include "Action.h"
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#include "MainPanel.h"
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#include "BatteryMeter.h"
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#include "LinuxProcess.h"
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#include "SignalsPanel.h"
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}*/
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#ifndef CLAMP
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#define CLAMP(x,low,high) (((x)>(high))?(high):(((x)<(low))?(low):(x)))
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#endif
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ProcessField Platform_defaultFields[] = { PID, USER, PRIORITY, NICE, M_SIZE, M_RESIDENT, M_SHARE, STATE, PERCENT_CPU, PERCENT_MEM, TIME, COMM, 0 };
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//static ProcessField defaultIoFields[] = { PID, IO_PRIORITY, USER, IO_READ_RATE, IO_WRITE_RATE, IO_RATE, COMM, 0 };
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int Platform_numberOfFields = LAST_PROCESSFIELD;
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SignalItem Platform_signals[] = {
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{ .name = " 0 Cancel", .number = 0 },
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{ .name = " 1 SIGHUP", .number = 1 },
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{ .name = " 2 SIGINT", .number = 2 },
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{ .name = " 3 SIGQUIT", .number = 3 },
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{ .name = " 4 SIGILL", .number = 4 },
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{ .name = " 5 SIGTRAP", .number = 5 },
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{ .name = " 6 SIGABRT", .number = 6 },
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{ .name = " 6 SIGIOT", .number = 6 },
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{ .name = " 7 SIGBUS", .number = 7 },
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{ .name = " 8 SIGFPE", .number = 8 },
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{ .name = " 9 SIGKILL", .number = 9 },
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{ .name = "10 SIGUSR1", .number = 10 },
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{ .name = "11 SIGSEGV", .number = 11 },
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{ .name = "12 SIGUSR2", .number = 12 },
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{ .name = "13 SIGPIPE", .number = 13 },
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{ .name = "14 SIGALRM", .number = 14 },
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{ .name = "15 SIGTERM", .number = 15 },
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{ .name = "16 SIGSTKFLT", .number = 16 },
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{ .name = "17 SIGCHLD", .number = 17 },
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{ .name = "18 SIGCONT", .number = 18 },
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{ .name = "19 SIGSTOP", .number = 19 },
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{ .name = "20 SIGTSTP", .number = 20 },
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{ .name = "21 SIGTTIN", .number = 21 },
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{ .name = "22 SIGTTOU", .number = 22 },
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{ .name = "23 SIGURG", .number = 23 },
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{ .name = "24 SIGXCPU", .number = 24 },
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{ .name = "25 SIGXFSZ", .number = 25 },
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{ .name = "26 SIGVTALRM", .number = 26 },
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{ .name = "27 SIGPROF", .number = 27 },
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{ .name = "28 SIGWINCH", .number = 28 },
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{ .name = "29 SIGIO", .number = 29 },
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{ .name = "29 SIGPOLL", .number = 29 },
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{ .name = "30 SIGPWR", .number = 30 },
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{ .name = "31 SIGSYS", .number = 31 },
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};
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unsigned int Platform_numberOfSignals = sizeof(Platform_signals)/sizeof(SignalItem);
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static Htop_Reaction Platform_actionSetIOPriority(State* st) {
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Panel* panel = st->panel;
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LinuxProcess* p = (LinuxProcess*) Panel_getSelected(panel);
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if (!p) return HTOP_OK;
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IOPriority ioprio = p->ioPriority;
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Panel* ioprioPanel = IOPriorityPanel_new(ioprio);
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void* set = Action_pickFromVector(st, ioprioPanel, 21);
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if (set) {
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IOPriority ioprio = IOPriorityPanel_getIOPriority(ioprioPanel);
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bool ok = MainPanel_foreachProcess((MainPanel*)panel, (MainPanel_ForeachProcessFn) LinuxProcess_setIOPriority, (size_t) ioprio, NULL);
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if (!ok)
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beep();
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}
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Panel_delete((Object*)ioprioPanel);
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return HTOP_REFRESH | HTOP_REDRAW_BAR | HTOP_UPDATE_PANELHDR;
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}
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void Platform_setBindings(Htop_Action* keys) {
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keys['i'] = Platform_actionSetIOPriority;
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}
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MeterClass* Platform_meterTypes[] = {
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&CPUMeter_class,
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&ClockMeter_class,
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&LoadAverageMeter_class,
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&LoadMeter_class,
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&MemoryMeter_class,
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&SwapMeter_class,
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&TasksMeter_class,
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&UptimeMeter_class,
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&BatteryMeter_class,
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&HostnameMeter_class,
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&AllCPUsMeter_class,
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&AllCPUs2Meter_class,
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&LeftCPUsMeter_class,
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&RightCPUsMeter_class,
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&LeftCPUs2Meter_class,
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&RightCPUs2Meter_class,
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&BlankMeter_class,
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NULL
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};
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int Platform_getUptime() {
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double uptime = 0;
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FILE* fd = fopen(PROCDIR "/uptime", "r");
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if (fd) {
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int n = fscanf(fd, "%64lf", &uptime);
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fclose(fd);
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if (n <= 0) return 0;
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}
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return (int) floor(uptime);
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}
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void Platform_getLoadAverage(double* one, double* five, double* fifteen) {
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int activeProcs, totalProcs, lastProc;
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*one = 0; *five = 0; *fifteen = 0;
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FILE *fd = fopen(PROCDIR "/loadavg", "r");
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if (fd) {
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int total = fscanf(fd, "%32lf %32lf %32lf %32d/%32d %32d", one, five, fifteen,
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&activeProcs, &totalProcs, &lastProc);
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(void) total;
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assert(total == 6);
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fclose(fd);
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}
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}
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int Platform_getMaxPid() {
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FILE* file = fopen(PROCDIR "/sys/kernel/pid_max", "r");
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if (!file) return -1;
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int maxPid = 4194303;
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int match = fscanf(file, "%32d", &maxPid);
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(void) match;
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fclose(file);
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return maxPid;
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}
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double Platform_setCPUValues(Meter* this, int cpu) {
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LinuxProcessList* pl = (LinuxProcessList*) this->pl;
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CPUData* cpuData = &(pl->cpus[cpu]);
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double total = (double) ( cpuData->totalPeriod == 0 ? 1 : cpuData->totalPeriod);
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double percent;
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double* v = this->values;
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v[CPU_METER_NICE] = cpuData->nicePeriod / total * 100.0;
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v[CPU_METER_NORMAL] = cpuData->userPeriod / total * 100.0;
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if (this->pl->settings->detailedCPUTime) {
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v[CPU_METER_KERNEL] = cpuData->systemPeriod / total * 100.0;
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v[CPU_METER_IRQ] = cpuData->irqPeriod / total * 100.0;
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v[CPU_METER_SOFTIRQ] = cpuData->softIrqPeriod / total * 100.0;
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v[CPU_METER_STEAL] = cpuData->stealPeriod / total * 100.0;
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v[CPU_METER_GUEST] = cpuData->guestPeriod / total * 100.0;
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v[CPU_METER_IOWAIT] = cpuData->ioWaitPeriod / total * 100.0;
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Meter_setItems(this, 8);
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if (this->pl->settings->accountGuestInCPUMeter) {
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percent = v[0]+v[1]+v[2]+v[3]+v[4]+v[5]+v[6];
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} else {
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percent = v[0]+v[1]+v[2]+v[3]+v[4];
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}
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} else {
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v[2] = cpuData->systemAllPeriod / total * 100.0;
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v[3] = (cpuData->stealPeriod + cpuData->guestPeriod) / total * 100.0;
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Meter_setItems(this, 4);
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percent = v[0]+v[1]+v[2]+v[3];
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}
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percent = CLAMP(percent, 0.0, 100.0);
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if (isnan(percent)) percent = 0.0;
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return percent;
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}
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void Platform_setMemoryValues(Meter* this) {
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ProcessList* pl = (ProcessList*) this->pl;
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long int usedMem = pl->usedMem;
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long int buffersMem = pl->buffersMem;
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long int cachedMem = pl->cachedMem;
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usedMem -= buffersMem + cachedMem;
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this->total = pl->totalMem;
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this->values[0] = usedMem;
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this->values[1] = buffersMem;
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this->values[2] = cachedMem;
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}
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void Platform_setSwapValues(Meter* this) {
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ProcessList* pl = (ProcessList*) this->pl;
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this->total = pl->totalSwap;
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this->values[0] = pl->usedSwap;
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}
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char* Platform_getProcessEnv(pid_t pid) {
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char procname[32+1];
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snprintf(procname, 32, "/proc/%d/environ", pid);
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FILE* fd = fopen(procname, "r");
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char *env = NULL;
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if (fd) {
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size_t capacity = 4096, size = 0, bytes;
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env = xMalloc(capacity);
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while (env && (bytes = fread(env+size, 1, capacity-size, fd)) > 0) {
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size += bytes;
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capacity *= 2;
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env = xRealloc(env, capacity);
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}
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fclose(fd);
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if (size < 2 || env[size-1] || env[size-2]) {
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if (size + 2 < capacity) {
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env = xRealloc(env, capacity+2);
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}
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env[size] = 0;
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env[size+1] = 0;
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}
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}
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return env;
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}
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