Add NetBSD platform support without procfs dependency

- TODO, clean up the code base and update comments in code.

1 files changed, 380 insertions, 0 deletions

diff --git a/netbsd/Platform.c b/netbsd/Platform.c
new file mode 100644
index 00000000..354476d3
--- /dev/null
+++ b/netbsd/Platform.c
@@ -0,0 +1,380 @@
+/*
+htop - openbsd/Platform.c
+(C) 2014 Hisham H. Muhammad
+(C) 2021 Santhosh Raju
+Released under the GNU GPLv2, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "Platform.h"
+
+#include <errno.h>
+#include <kvm.h>
+#include <limits.h>
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <sys/resource.h>
+//#include <sys/sensors.h>
+#include <sys/sysctl.h>
+#include <sys/time.h>
+#include <sys/types.h>
+//#include <uvm/uvmexp.h>
+
+#include "CPUMeter.h"
+#include "ClockMeter.h"
+#include "DateMeter.h"
+#include "DateTimeMeter.h"
+#include "HostnameMeter.h"
+#include "LoadAverageMeter.h"
+#include "Macros.h"
+#include "MemoryMeter.h"
+#include "Meter.h"
+#include "NetBSDProcess.h"
+#include "NetBSDProcessList.h"
+#include "ProcessList.h"
+#include "Settings.h"
+#include "SignalsPanel.h"
+#include "SwapMeter.h"
+#include "SysArchMeter.h"
+#include "TasksMeter.h"
+#include "UptimeMeter.h"
+#include "XUtils.h"
+
+
+const ProcessField Platform_defaultFields[] = { PID, USER, PRIORITY, NICE, M_VIRT, M_RESIDENT, STATE, PERCENT_CPU, PERCENT_MEM, TIME, COMM, 0 };
+
+/*
+ * See /usr/include/sys/signal.h
+ */
+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 SIGEMT",      .number =  7 },
+   { .name = " 8 SIGFPE",      .number =  8 },
+   { .name = " 9 SIGKILL",     .number =  9 },
+   { .name = "10 SIGBUS",      .number = 10 },
+   { .name = "11 SIGSEGV",     .number = 11 },
+   { .name = "12 SIGSYS",      .number = 12 },
+   { .name = "13 SIGPIPE",     .number = 13 },
+   { .name = "14 SIGALRM",     .number = 14 },
+   { .name = "15 SIGTERM",     .number = 15 },
+   { .name = "16 SIGURG",      .number = 16 },
+   { .name = "17 SIGSTOP",     .number = 17 },
+   { .name = "18 SIGTSTP",     .number = 18 },
+   { .name = "19 SIGCONT",     .number = 19 },
+   { .name = "20 SIGCHLD",     .number = 20 },
+   { .name = "21 SIGTTIN",     .number = 21 },
+   { .name = "22 SIGTTOU",     .number = 22 },
+   { .name = "23 SIGIO",       .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 SIGINFO",     .number = 29 },
+   { .name = "30 SIGUSR1",     .number = 30 },
+   { .name = "31 SIGUSR2",     .number = 31 },
+   { .name = "32 SIGPWR",      .number = 32 },
+   { .name = "33 SIGRTMIN",    .number = 33 },
+   { .name = "34 SIGRTMIN+1",  .number = 34 },
+   { .name = "35 SIGRTMIN+2",  .number = 35 },
+   { .name = "36 SIGRTMIN+3",  .number = 36 },
+   { .name = "37 SIGRTMIN+4",  .number = 37 },
+   { .name = "38 SIGRTMIN+5",  .number = 38 },
+   { .name = "39 SIGRTMIN+6",  .number = 39 },
+   { .name = "40 SIGRTMIN+7",  .number = 40 },
+   { .name = "41 SIGRTMIN+8",  .number = 41 },
+   { .name = "42 SIGRTMIN+9",  .number = 42 },
+   { .name = "43 SIGRTMIN+10", .number = 43 },
+   { .name = "44 SIGRTMIN+11", .number = 44 },
+   { .name = "45 SIGRTMIN+12", .number = 45 },
+   { .name = "46 SIGRTMIN+13", .number = 46 },
+   { .name = "47 SIGRTMIN+14", .number = 47 },
+   { .name = "48 SIGRTMIN+15", .number = 48 },
+   { .name = "49 SIGRTMIN+16", .number = 49 },
+   { .name = "50 SIGRTMIN+17", .number = 50 },
+   { .name = "51 SIGRTMIN+18", .number = 51 },
+   { .name = "52 SIGRTMIN+19", .number = 52 },
+   { .name = "53 SIGRTMIN+20", .number = 53 },
+   { .name = "54 SIGRTMIN+21", .number = 54 },
+   { .name = "55 SIGRTMIN+22", .number = 55 },
+   { .name = "56 SIGRTMIN+23", .number = 56 },
+   { .name = "57 SIGRTMIN+24", .number = 57 },
+   { .name = "58 SIGRTMIN+25", .number = 58 },
+   { .name = "59 SIGRTMIN+26", .number = 59 },
+   { .name = "60 SIGRTMIN+27", .number = 60 },
+   { .name = "61 SIGRTMIN+28", .number = 61 },
+   { .name = "62 SIGRTMIN+29", .number = 62 },
+   { .name = "63 SIGRTMAX",    .number = 63 },
+};
+
+const unsigned int Platform_numberOfSignals = ARRAYSIZE(Platform_signals);
+
+const MeterClass* const Platform_meterTypes[] = {
+   &CPUMeter_class,
+   &ClockMeter_class,
+   &DateMeter_class,
+   &DateTimeMeter_class,
+   &LoadAverageMeter_class,
+   &LoadMeter_class,
+   &MemoryMeter_class,
+   &SwapMeter_class,
+   &TasksMeter_class,
+   &UptimeMeter_class,
+   &BatteryMeter_class,
+   &HostnameMeter_class,
+   &SysArchMeter_class,
+   &AllCPUsMeter_class,
+   &AllCPUs2Meter_class,
+   &AllCPUs4Meter_class,
+   &AllCPUs8Meter_class,
+   &LeftCPUsMeter_class,
+   &RightCPUsMeter_class,
+   &LeftCPUs2Meter_class,
+   &RightCPUs2Meter_class,
+   &LeftCPUs4Meter_class,
+   &RightCPUs4Meter_class,
+   &LeftCPUs8Meter_class,
+   &RightCPUs8Meter_class,
+   &BlankMeter_class,
+   NULL
+};
+
+void Platform_init(void) {
+   /* no platform-specific setup needed */
+}
+
+void Platform_done(void) {
+   /* no platform-specific cleanup needed */
+}
+
+void Platform_setBindings(Htop_Action* keys) {
+   /* no platform-specific key bindings */
+   (void) keys;
+}
+
+int Platform_getUptime() {
+   struct timeval bootTime, currTime;
+   const int mib[2] = { CTL_KERN, KERN_BOOTTIME };
+   size_t size = sizeof(bootTime);
+
+   int err = sysctl(mib, 2, &bootTime, &size, NULL, 0);
+   if (err) {
+      return -1;
+   }
+   gettimeofday(&currTime, NULL);
+
+   return (int) difftime(currTime.tv_sec, bootTime.tv_sec);
+}
+
+void Platform_getLoadAverage(double* one, double* five, double* fifteen) {
+   struct loadavg loadAverage;
+   const int mib[2] = { CTL_VM, VM_LOADAVG };
+   size_t size = sizeof(loadAverage);
+
+   int err = sysctl(mib, 2, &loadAverage, &size, NULL, 0);
+   if (err) {
+      *one = 0;
+      *five = 0;
+      *fifteen = 0;
+      return;
+   }
+   *one     = (double) loadAverage.ldavg[0] / loadAverage.fscale;
+   *five    = (double) loadAverage.ldavg[1] / loadAverage.fscale;
+   *fifteen = (double) loadAverage.ldavg[2] / loadAverage.fscale;
+}
+
+int Platform_getMaxPid() {
+   // this is hard-coded in sys/sys/proc.h - no sysctl exists
+   return 30000;
+}
+
+double Platform_setCPUValues(Meter* this, int cpu) {
+   const NetBSDProcessList* pl = (const NetBSDProcessList*) this->pl;
+   const CPUData* cpuData = &(pl->cpus[cpu]);
+   double total = cpuData->totalPeriod == 0 ? 1 : cpuData->totalPeriod;
+   double totalPercent;
+   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->sysPeriod / total * 100.0;
+      v[CPU_METER_IRQ]     = cpuData->intrPeriod / total * 100.0;
+      v[CPU_METER_SOFTIRQ] = 0.0;
+      v[CPU_METER_STEAL]   = 0.0;
+      v[CPU_METER_GUEST]   = 0.0;
+      v[CPU_METER_IOWAIT]  = 0.0;
+      v[CPU_METER_FREQUENCY] = NAN;
+      this->curItems = 8;
+      totalPercent = v[0] + v[1] + v[2] + v[3];
+   } else {
+      v[2] = cpuData->sysAllPeriod / total * 100.0;
+      v[3] = 0.0; // No steal nor guest on NetBSD
+      totalPercent = v[0] + v[1] + v[2];
+      this->curItems = 4;
+   }
+
+   totalPercent = CLAMP(totalPercent, 0.0, 100.0);
+
+   v[CPU_METER_TEMPERATURE] = NAN;
+
+   return totalPercent;
+}
+
+void Platform_setMemoryValues(Meter* this) {
+   const ProcessList* pl = 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) {
+   const ProcessList* pl = this->pl;
+   this->total = pl->totalSwap;
+   this->values[0] = pl->usedSwap;
+   this->values[1] = NAN;
+}
+
+char* Platform_getProcessEnv(pid_t pid) {
+   char errbuf[_POSIX2_LINE_MAX];
+   char* env;
+   char** ptr;
+   int count;
+   kvm_t* kt;
+   struct kinfo_proc* kproc;
+   size_t capacity = 4096, size = 0;
+
+   if ((kt = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL) {
+      return NULL;
+   }
+
+   if ((kproc = kvm_getprocs(kt, KERN_PROC_PID, pid, &count)) == NULL) {
+      (void) kvm_close(kt);
+      return NULL;
+   }
+
+   if ((ptr = kvm_getenvv(kt, kproc, 0)) == NULL) {
+      (void) kvm_close(kt);
+      return NULL;
+   }
+
+   env = xMalloc(capacity);
+   for (char** p = ptr; *p; p++) {
+      size_t len = strlen(*p) + 1;
+
+      if (size + len > capacity) {
+         capacity *= 2;
+         env = xRealloc(env, capacity);
+      }
+
+      strlcpy(env + size, *p, len);
+      size += len;
+   }
+
+   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;
+   }
+
+   (void) kvm_close(kt);
+   return env;
+}
+
+char* Platform_getInodeFilename(pid_t pid, ino_t inode) {
+    (void)pid;
+    (void)inode;
+    return NULL;
+}
+
+FileLocks_ProcessData* Platform_getProcessLocks(pid_t pid) {
+    (void)pid;
+    return NULL;
+}
+
+bool Platform_getDiskIO(DiskIOData* data) {
+   // TODO
+   (void)data;
+   return false;
+}
+
+bool Platform_getNetworkIO(NetworkIOData* data) {
+   // TODO
+   (void)data;
+   return false;
+}
+
+//static bool findDevice(const char* name, int* mib, struct sensordev* snsrdev, size_t* sdlen) {
+//   for (int devn = 0;; devn++) {
+//      mib[2] = devn;
+//      if (sysctl(mib, 3, snsrdev, sdlen, NULL, 0) == -1) {
+//         if (errno == ENXIO)
+//            continue;
+//         if (errno == ENOENT)
+//            return false;
+//      }
+//      if (String_eq(name, snsrdev->xname)) {
+//         return true;
+//      }
+//   }
+//}
+
+void Platform_getBattery(double* percent, ACPresence* isOnAC) {
+   // TODO
+   (void)percent;
+   (void)isOnAC;
+//   int mib[] = {CTL_HW, HW_SENSORS, 0, 0, 0};
+//   struct sensor s;
+//   size_t slen = sizeof(struct sensor);
+//   struct sensordev snsrdev;
+//   size_t sdlen = sizeof(struct sensordev);
+//
+//   bool found = findDevice("acpibat0", mib, &snsrdev, &sdlen);
+//
+//   *percent = NAN;
+//   if (found) {
+//      /* last full capacity */
+//      mib[3] = 7;
+//      mib[4] = 0;
+//      double last_full_capacity = 0;
+//      if (sysctl(mib, 5, &s, &slen, NULL, 0) != -1)
+//         last_full_capacity = s.value;
+//      if (last_full_capacity > 0) {
+//         /*  remaining capacity */
+//         mib[3] = 7;
+//         mib[4] = 3;
+//         if (sysctl(mib, 5, &s, &slen, NULL, 0) != -1) {
+//            double charge = s.value;
+//            *percent = 100 * (charge / last_full_capacity);
+//            if (charge >= last_full_capacity) {
+//               *percent = 100;
+//            }
+//         }
+//      }
+//   }
+//
+//   found = findDevice("acpiac0", mib, &snsrdev, &sdlen);
+//
+//   *isOnAC = AC_ERROR;
+//   if (found) {
+//      mib[3] = 9;
+//      mib[4] = 0;
+//      if (sysctl(mib, 5, &s, &slen, NULL, 0) != -1)
+//         *isOnAC = s.value;
+//   }
+}