(Very) initial working OpenBSD port

Makefile.am

@@ -51,6 +51,14 @@ myhtopplatheaders = freebsd/Platform.h freebsd/FreeBSDProcessList.h \
 freebsd/FreeBSDProcess.h freebsd/FreeBSDCRT.h freebsd/Battery.h
 endif
 
+if HTOP_OPENBSD
+myhtopplatsources = openbsd/Platform.c openbsd/OpenBSDProcessList.c \
+openbsd/OpenBSDProcess.c openbsd/OpenBSDCRT.c openbsd/Battery.c
+
+myhtopplatheaders = openbsd/Platform.h openbsd/OpenBSDProcessList.h \
+openbsd/OpenBSDProcess.h openbsd/OpenBSDCRT.h openbsd/Battery.h
+endif
+
 if HTOP_DARWIN
 htop_LDFLAGS += -framework IOKit -framework CoreFoundation
 myhtopplatsources = darwin/Platform.c darwin/DarwinProcess.c \

StringUtils.c

@@ -55,7 +55,7 @@ inline int String_eq(const char* s1, const char* s2) {
 char** String_split(const char* s, char sep, int* n) {
    *n = 0;
    const int rate = 10;
-   char** out = calloc(rate, sizeof(char**));
+   char** out = calloc(rate, sizeof(char*));
    int ctr = 0;
    int blocks = rate;
    char* where;

configure.ac

@@ -33,6 +33,9 @@ case "$target" in
 *freebsd*)
    my_htop_platform=freebsd
    ;;
+*openbsd*)
+   my_htop_platform=openbsd
+   ;;
 *darwin*)
    my_htop_platform=darwin
    ;;
@@ -168,6 +171,10 @@ if test "$my_htop_platform" = "freebsd"; then
    AC_CHECK_LIB([kvm], [kvm_open], [], [missing_libraries="$missing_libraries libkvm"])
 fi
 
+if test "$my_htop_platform" = "openbsd"; then
+   AC_CHECK_LIB([kvm], [kvm_open], [], [missing_libraries="$missing_libraries libkvm"])
+fi
+
 AC_ARG_ENABLE(native_affinity, [AC_HELP_STRING([--enable-native-affinity], [enable native sched_setaffinity and sched_getaffinity for affinity support, disables hwloc])], ,enable_native_affinity="yes")
 if test "x$enable_native_affinity" = xyes -a "x$cross_compiling" = xno; then
    AC_MSG_CHECKING([for usable sched_setaffinity])
@@ -211,6 +218,7 @@ AC_DEFINE_UNQUOTED(COPYRIGHT, "(C) 2004-$year Hisham Muhammad", [Copyright messa
 # ----------------------------------------------------------------------
 AM_CONDITIONAL([HTOP_LINUX], [test "$my_htop_platform" = linux])
 AM_CONDITIONAL([HTOP_FREEBSD], [test "$my_htop_platform" = freebsd])
+AM_CONDITIONAL([HTOP_OPENBSD], [test "$my_htop_platform" = openbsd])
 AM_CONDITIONAL([HTOP_DARWIN], [test "$my_htop_platform" = darwin])
 AM_CONDITIONAL([HTOP_UNSUPPORTED], [test "$my_htop_platform" = unsupported])
 AC_SUBST(my_htop_platform)

htop.c

@@ -108,24 +108,21 @@ static CommandLineSettings parseArguments(int argc, char** argv) {
             }
             flags.sortKey = ColumnsPanel_fieldNameToIndex(optarg);
             if (flags.sortKey == -1) {
-               fprintf(stderr, "Error: invalid column \"%s\".\n", optarg);
-               exit(1);
-            }
+               errx(1, stderr, "Error: invalid column \"%s\".\n", optarg);
+			}
             break;
          case 'd':
             if (sscanf(optarg, "%16d", &(flags.delay)) == 1) {
                if (flags.delay < 1) flags.delay = 1;
                if (flags.delay > 100) flags.delay = 100;
             } else {
-               fprintf(stderr, "Error: invalid delay value \"%s\".\n", optarg);
-               exit(1);
+               errx(1, stderr, "Error: invalid delay value \"%s\".\n", optarg);
             }
             break;
          case 'u':
             if (!Action_setUserOnly(optarg, &(flags.userId))) {
-               fprintf(stderr, "Error: invalid user \"%s\".\n", optarg);
-               exit(1);
-            }
+               errx(1, stderr, "Error: invalid user \"%s\".\n", optarg);
+			}
             break;
          case 'C':
             flags.useColors = false;

openbsd/Battery.c

+/*
+htop - openbsd/Battery.c
+(C) 2015 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "BatteryMeter.h"
+
+void Battery_getData(double* level, ACPresence* isOnAC) {
+   // TODO
+   *level = -1;
+   *isOnAC = AC_ERROR;
+}
+

openbsd/Battery.h

+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_Battery
+#define HEADER_Battery
+/*
+htop - openbsd/Battery.h
+(C) 2015 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+void Battery_getData(double* level, ACPresence* isOnAC);
+
+
+#endif

openbsd/OpenBSDCRT.c

+/*
+htop - UnsupportedCRT.c
+(C) 2014 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h"
+#include "CRT.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+void CRT_handleSIGSEGV(int sgn) {
+   (void) sgn;
+   CRT_done();
+   fprintf(stderr, "\n\nhtop " VERSION " aborting.\n");
+   fprintf(stderr, "\nUnfortunately, you seem to be using an unsupported platform!");
+   fprintf(stderr, "\nPlease contact your platform package mantainer!\n\n");
+   abort();
+}
+

openbsd/OpenBSDCRT.h

+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_UnsupportedCRT
+#define HEADER_UnsupportedCRT
+/*
+htop - UnsupportedCRT.h
+(C) 2014 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+void CRT_handleSIGSEGV(int sgn);
+
+
+#endif

openbsd/OpenBSDProcess.c

+/*
+htop - OpenBSDProcess.c
+(C) 2015 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "Process.h"
+#include "ProcessList.h"
+#include "OpenBSDProcess.h"
+#include "Platform.h"
+#include "CRT.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+/*{
+
+typedef enum OpenBSDProcessFields {
+   // Add platform-specific fields here, with ids >= 100
+   LAST_PROCESSFIELD = 100,
+} OpenBSDProcessField;
+
+typedef struct OpenBSDProcess_ {
+   Process super;
+} OpenBSDProcess;
+
+#ifndef Process_isKernelThread
+#define Process_isKernelThread(_process) (_process->pgrp == 0)
+#endif
+
+#ifndef Process_isUserlandThread
+#define Process_isUserlandThread(_process) (_process->pid != _process->tgid)
+#endif
+
+}*/
+
+ProcessClass OpenBSDProcess_class = {
+   .super = {
+      .extends = Class(Process),
+      .display = Process_display,
+      .delete = Process_delete,
+      .compare = OpenBSDProcess_compare
+   },
+   .writeField = (Process_WriteField) OpenBSDProcess_writeField,
+};
+
+ProcessFieldData Process_fields[] = {
+   [0] = {
+	   .name = "",
+	   .title = NULL,
+	   .description = NULL,
+	   .flags = 0, },
+   [PID] = {
+	   .name = "PID",
+	   .title = "    PID ",
+	   .description = "Process/thread ID",
+	   .flags = 0, },
+   [COMM] = {
+	   .name = "Command",
+	   .title = "Command ",
+	   .description = "Command line",
+	   .flags = 0, },
+   [STATE] = {
+	   .name = "STATE",
+	   .title = "S ",
+	   .description = "Process state (S sleeping, R running, D disk, Z zombie, T traced, W paging)",
+	   .flags = 0, },
+   [PPID] = {
+	   .name = "PPID",
+	   .title = "   PPID ",
+	   .description = "Parent process ID",
+	   .flags = 0, },
+   [PGRP] = {
+	   .name = "PGRP",
+	   .title = "   PGRP ",
+	   .description = "Process group ID",
+	   .flags = 0, },
+   [SESSION] = {
+	   .name = "SESSION",
+	   .title = "   SESN ",
+	   .description = "Process's session ID",
+	   .flags = 0, },
+   [TTY_NR] = {
+	   .name = "TTY_NR",
+	   .title = "  TTY ",
+	   .description = "Controlling terminal",
+	   .flags = 0, },
+   [TPGID] = {
+	   .name = "TPGID",
+	   .title = "  TPGID ",
+	   .description = "Process ID of the fg process group of the controlling terminal",
+	   .flags = 0, },
+   [MINFLT] = {
+	   .name = "MINFLT",
+	   .title = "     MINFLT ",
+	   .description = "Number of minor faults which have not required loading a memory page from disk",
+	   .flags = 0, },
+   [MAJFLT] = {
+	   .name = "MAJFLT",
+	   .title = "     MAJFLT ",
+	   .description = "Number of major faults which have required loading a memory page from disk",
+	   .flags = 0, },
+   [PRIORITY] = {
+	   .name = "PRIORITY",
+	   .title = "PRI ",
+	   .description = "Kernel's internal priority for the process",
+	   .flags = 0, },
+   [NICE] = {
+	   .name = "NICE",
+	   .title = " NI ",
+	   .description = "Nice value (the higher the value, the more it lets other processes take priority)",
+	   .flags = 0, },
+   [STARTTIME] = {
+	   .name = "STARTTIME",
+	   .title = "START ",
+	   .description = "Time the process was started",
+	   .flags = 0, },
+   [PROCESSOR] = {
+	   .name = "PROCESSOR",
+	   .title = "CPU ",
+	   .description = "Id of the CPU the process last executed on",
+	   .flags = 0, },
+   [M_SIZE] = {
+	   .name = "M_SIZE",
+	   .title = " VIRT ",
+	   .description = "Total program size in virtual memory",
+	   .flags = 0, },
+   [M_RESIDENT] = {
+	   .name = "M_RESIDENT",
+	   .title = "  RES ",
+	   .description = "Resident set size, size of the text and data sections, plus stack usage",
+	   .flags = 0, },
+   [ST_UID] = {
+	   .name = "ST_UID",
+	   .title = " UID ",
+	   .description = "User ID of the process owner",
+	   .flags = 0, },
+   [PERCENT_CPU] = {
+	   .name = "PERCENT_CPU",
+	   .title = "CPU% ",
+	   .description = "Percentage of the CPU time the process used in the last sampling",
+	   .flags = 0, },
+   [PERCENT_MEM] = {
+	   .name = "PERCENT_MEM",
+	   .title = "MEM% ",
+	   .description = "Percentage of the memory the process is using, based on resident memory size",
+	   .flags = 0, },
+   [USER] = {
+	   .name = "USER",
+	   .title = "USER      ",
+	   .description = "Username of the process owner (or user ID if name cannot be determined)",
+	   .flags = 0, },
+   [TIME] = {
+	   .name = "TIME",
+	   .title = "  TIME+  ",
+	   .description = "Total time the process has spent in user and system time",
+	   .flags = 0, },
+   [NLWP] = {
+	   .name = "NLWP",
+	   .title = "NLWP ",
+	   .description = "Number of threads in the process",
+	   .flags = 0, },
+   [TGID] = {
+	   .name = "TGID",
+	   .title = "   TGID ",
+	   .description = "Thread group ID (i.e. process ID)",
+	   .flags = 0, },
+   [LAST_PROCESSFIELD] = {
+	   .name = "*** report bug! ***",
+	   .title = NULL,
+	   .description = NULL,
+	   .flags = 0, },
+};
+
+ProcessPidColumn Process_pidColumns[] = {
+   { .id = PID, .label = "PID" },
+   { .id = PPID, .label = "PPID" },
+   { .id = TPGID, .label = "TPGID" },
+   { .id = TGID, .label = "TGID" },
+   { .id = PGRP, .label = "PGRP" },
+   { .id = SESSION, .label = "SESN" },
+   { .id = 0, .label = NULL },
+};
+
+OpenBSDProcess* OpenBSDProcess_new(Settings* settings) {
+   OpenBSDProcess* this = calloc(sizeof(OpenBSDProcess), 1);
+   Object_setClass(this, Class(OpenBSDProcess));
+   Process_init(&this->super, settings);
+   return this;
+}
+
+void Process_delete(Object* cast) {
+   OpenBSDProcess* this = (OpenBSDProcess*) cast;
+   Process_done((Process*)cast);
+   free(this);
+}
+
+void OpenBSDProcess_writeField(Process* this, RichString* str, ProcessField field) {
+   //OpenBSDProcess* fp = (OpenBSDProcess*) this;
+   char buffer[256]; buffer[255] = '\0';
+   int attr = CRT_colors[DEFAULT_COLOR];
+   //int n = sizeof(buffer) - 1;
+   switch (field) {
+   // add OpenBSD-specific fields here
+   default:
+      Process_writeField(this, str, field);
+      return;
+   }
+   RichString_append(str, attr, buffer);
+}
+
+long OpenBSDProcess_compare(const void* v1, const void* v2) {
+   OpenBSDProcess *p1, *p2;
+   Settings *settings = ((Process*)v1)->settings;
+   if (settings->direction == 1) {
+      p1 = (OpenBSDProcess*)v1;
+      p2 = (OpenBSDProcess*)v2;
+   } else {
+      p2 = (OpenBSDProcess*)v1;
+      p1 = (OpenBSDProcess*)v2;
+   }
+   switch (settings->sortKey) {
+   // add OpenBSD-specific fields here
+   default:
+      return Process_compare(v1, v2);
+   }
+}
+
+bool Process_isThread(Process* this) {
+   return (Process_isKernelThread(this));
+}

openbsd/OpenBSDProcess.h

+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_OpenBSDProcess
+#define HEADER_OpenBSDProcess
+/*
+htop - OpenBSDProcess.h
+(C) 2015 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+
+typedef enum OpenBSDProcessFields {
+   // Add platform-specific fields here, with ids >= 100
+   LAST_PROCESSFIELD = 100,
+} OpenBSDProcessField;
+
+typedef struct OpenBSDProcess_ {
+   Process super;
+} OpenBSDProcess;
+
+#ifndef Process_isKernelThread
+#define Process_isKernelThread(_process) (_process->pgrp == 0)
+#endif
+
+#ifndef Process_isUserlandThread
+#define Process_isUserlandThread(_process) (_process->pid != _process->tgid)
+#endif
+
+
+extern ProcessClass OpenBSDProcess_class;
+
+extern ProcessFieldData Process_fields[];
+
+extern ProcessPidColumn Process_pidColumns[];
+
+OpenBSDProcess* OpenBSDProcess_new(Settings* settings);
+
+void Process_delete(Object* cast);
+
+void OpenBSDProcess_writeField(Process* this, RichString* str, ProcessField field);
+
+long OpenBSDProcess_compare(const void* v1, const void* v2);
+
+bool Process_isThread(Process* this);
+
+#endif

openbsd/OpenBSDProcessList.c

+/*
+htop - OpenBSDProcessList.c
+(C) 2014 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "ProcessList.h"
+#include "OpenBSDProcessList.h"
+#include "OpenBSDProcess.h"
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <err.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/proc.h>
+#include <sys/sysctl.h>
+#include <sys/user.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/resource.h>
+
+/*{
+
+#include <kvm.h>
+
+typedef struct CPUData_ {
+   unsigned long long int totalTime;
+   unsigned long long int totalPeriod;
+} CPUData;
+
+typedef struct OpenBSDProcessList_ {
+   ProcessList super;
+   kvm_t* kd;
+
+   CPUData* cpus;
+
+} OpenBSDProcessList;
+
+}*/
+
+static int pageSizeKb;
+static long fscale;
+
+ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
+   int mib[] = { CTL_HW, HW_NCPU };
+   int fmib[] = { CTL_KERN, KERN_FSCALE };
+   int i;
+   OpenBSDProcessList* fpl = calloc(1, sizeof(OpenBSDProcessList));
+   ProcessList* pl = (ProcessList*) fpl;
+   size_t size = sizeof(pl->cpuCount);
+   
+   ProcessList_init(pl, Class(OpenBSDProcess), usersTable, pidWhiteList, userId);
+   pl->cpuCount = 1;    // default to 1 on sysctl() error
+   (void)sysctl(mib, 2, &pl->cpuCount, &size, NULL, 0);
+   fpl->cpus = realloc(fpl->cpus, pl->cpuCount * sizeof(CPUData));
+
+   size = sizeof(fscale);
+   if (sysctl(fmib, 2, &fscale, &size, NULL, 0) < 0)
+	  err(1, "fscale sysctl call failed");
+
+   for (i = 0; i < pl->cpuCount; i++) {
+      fpl->cpus[i].totalTime = 1;
+      fpl->cpus[i].totalPeriod = 1;
+   }
+   
+   pageSizeKb = PAGE_SIZE_KB;
+
+   // XXX: last arg should eventually be an errbuf
+   fpl->kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, NULL);
+   assert(fpl->kd);
+
+   return pl;
+}
+
+void ProcessList_delete(ProcessList* this) {
+   const OpenBSDProcessList* fpl = (OpenBSDProcessList*) this;
+   if (fpl->kd) kvm_close(fpl->kd);
+  
+   ProcessList_done(this);
+   free(this);
+}
+
+static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
+   static int uvmexp_mib[] = {CTL_VM, VM_UVMEXP};
+   struct uvmexp uvmexp;
+   size_t size = sizeof(uvmexp);
+
+   if (sysctl(uvmexp_mib, 2, &uvmexp, &size, NULL, 0) < 0) {
+	   err(1, "uvmexp sysctl call failed");
+   }
+
+   //kb_pagesize = uvmexp.pagesize / 1024;
+   pl->usedMem = uvmexp.active * pageSizeKb;
+   pl->totalMem = uvmexp.npages * pageSizeKb;
+
+	/*
+   const OpenBSDProcessList* fpl = (OpenBSDProcessList*) pl;
+   
+   size_t len = sizeof(pl->totalMem);
+   sysctl(MIB_hw_physmem, 2, &(pl->totalMem), &len, NULL, 0);
+   pl->totalMem /= 1024;
+   sysctl(MIB_vm_stats_vm_v_wire_count, 4, &(pl->usedMem), &len, NULL, 0);
+   pl->usedMem *= pageSizeKb;
+   pl->freeMem = pl->totalMem - pl->usedMem;
+   sysctl(MIB_vm_stats_vm_v_cache_count, 4, &(pl->cachedMem), &len, NULL, 0);
+   pl->cachedMem *= pageSizeKb;
+   
+   struct kvm_swap swap[16];
+   int nswap = kvm_getswapinfo(fpl->kd, swap, sizeof(swap)/sizeof(swap[0]), 0);
+   pl->totalSwap = 0;
+   pl->usedSwap = 0;
+   for (int i = 0; i < nswap; i++) {
+      pl->totalSwap += swap[i].ksw_total;
+      pl->usedSwap += swap[i].ksw_used;
+   }
+   pl->totalSwap *= pageSizeKb;
+   pl->usedSwap *= pageSizeKb;
+   
+   pl->sharedMem = 0;  // currently unused
+   pl->buffersMem = 0; // not exposed to userspace
+   */
+}
+
+char *OpenBSDProcessList_readProcessName(kvm_t* kd, struct kinfo_proc* kproc, int* basenameEnd) {
+   char *str, *buf, **argv;
+   size_t cpsz;
+   size_t len = 500;
+
+   argv = kvm_getargv(kd, kproc, 500);
+
+   if (argv == NULL)
+      err(1, "kvm call failed");
+
+   str = buf = malloc(len+1);
+   if (str == NULL)
+      err(1, "out of memory");
+
+   while (*argv != NULL) {
+      cpsz = MIN(len, strlen(*argv));
+      strncpy(buf, *argv, cpsz);
+	  buf += cpsz;
+	  len -= cpsz;
+	  argv++;
+	  if (len > 0) {
+		  *buf = ' ';
+		  buf++;
+		  len--;
+	  }
+   }
+
+   *buf = '\0';
+   return str;
+}
+
+/*
+ * Taken from OpenBSD's ps(1).
+ */
+double getpcpu(const struct kinfo_proc *kp) {
+	if (fscale == 0)
+		return (0.0);
+
+#define	fxtofl(fixpt)	((double)(fixpt) / fscale)
+
+	return (100.0 * fxtofl(kp->p_pctcpu));
+}
+
+void ProcessList_goThroughEntries(ProcessList* this) {
+   OpenBSDProcessList* fpl = (OpenBSDProcessList*) this;
+   Settings* settings = this->settings;
+   bool hideKernelThreads = settings->hideKernelThreads;
+   bool hideUserlandThreads = settings->hideUserlandThreads;
+   struct kinfo_proc* kproc;
+   bool preExisting;
+   Process* proc;
+   OpenBSDProcess* fp;
+   int count = 0;
+   int i;
+   
+   OpenBSDProcessList_scanMemoryInfo(this);
+   
+   // use KERN_PROC_KTHREAD to also include kernel threads
+   struct kinfo_proc* kprocs = kvm_getprocs(fpl->kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
+   //struct kinfo_proc* kprocs = getprocs(KERN_PROC_ALL, 0, &count);
+   
+   for (i = 0; i < count; i++) {
+      kproc = &kprocs[i];
+      
+      preExisting = false;
+      proc = ProcessList_getProcess(this, kproc->p_pid, &preExisting, (Process_New) OpenBSDProcess_new);
+      fp = (OpenBSDProcess*) proc;
+
+      proc->show = ! ((hideKernelThreads && Process_isKernelThread(proc))
+			         || (hideUserlandThreads && Process_isUserlandThread(proc)));
+      
+      if (!preExisting) {
+         proc->ppid = kproc->p_ppid;
+         proc->tpgid = kproc->p_tpgid;
+         proc->tgid = kproc->p_pid;
+         proc->session = kproc->p_sid;
+         proc->tty_nr = kproc->p_tdev;
+         proc->pgrp = kproc->p__pgid;
+         proc->st_uid = kproc->p_uid;
+         proc->starttime_ctime = kproc->p_ustart_sec;
+         proc->user = UsersTable_getRef(this->usersTable, proc->st_uid);
+         ProcessList_add((ProcessList*)this, proc);
+         proc->comm = OpenBSDProcessList_readProcessName(fpl->kd, kproc, &proc->basenameOffset);
+      } else {
+         if (settings->updateProcessNames) {
+            free(proc->comm);
+            proc->comm = OpenBSDProcessList_readProcessName(fpl->kd, kproc, &proc->basenameOffset);
+         }
+      }
+
+      proc->m_size = kproc->p_vm_dsize;
+      proc->m_resident = kproc->p_vm_rssize;
+	  proc->percent_mem = (proc->m_resident * PAGE_SIZE_KB) / (double)(this->totalMem) * 100.0;
+	  proc->percent_cpu = MAX(MIN(getpcpu(kproc), this->cpuCount*100.0), 0.0);
+      //proc->nlwp = kproc->p_numthreads;
+      //proc->time = kproc->p_rtime_sec + ((kproc->p_rtime_usec + 500000) / 10);
+	  proc->nice = kproc->p_nice - 20;
+	  proc->time = kproc->p_rtime_sec + ((kproc->p_rtime_usec + 500000) / 1000000);
+	  proc->time *= 100;
+      proc->priority = kproc->p_priority - PZERO;
+
+      switch (kproc->p_stat) {
+      case SIDL:    proc->state = 'I'; break;
+      case SRUN:    proc->state = 'R'; break;
+      case SSLEEP:  proc->state = 'S'; break;
+      case SSTOP:   proc->state = 'T'; break;
+      case SZOMB:   proc->state = 'Z'; break;
+      case SDEAD:   proc->state = 'D'; break;
+      case SONPROC: proc->state = 'P'; break;
+      default:      proc->state = '?';
+      }
+
+      if (Process_isKernelThread(proc)) {
+         this->kernelThreads++;
+      }
+      
+      this->totalTasks++;
+      if (proc->state == 'R')
+         this->runningTasks++;
+      proc->updated = true;
+   }
+}

openbsd/OpenBSDProcessList.h

+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_OpenBSDProcessList
+#define HEADER_OpenBSDProcessList
+/*
+htop - OpenBSDProcessList.h
+(C) 2014 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+
+#include <kvm.h>
+
+typedef struct CPUData_ {
+   unsigned long long int totalTime;
+   unsigned long long int totalPeriod;
+} CPUData;
+
+typedef struct OpenBSDProcessList_ {
+   ProcessList super;
+   kvm_t* kd;
+
+   CPUData* cpus;
+
+} OpenBSDProcessList;
+
+
+
+ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId);
+
+void ProcessList_delete(ProcessList* this);
+
+char *OpenBSDProcessList_readProcessName(kvm_t* kd, struct kinfo_proc* kproc, int* basenameEnd);
+
+/*
+ * Taken from OpenBSD's ps(1).
+ */
+double getpcpu(const struct kinfo_proc *kp);
+
+void ProcessList_goThroughEntries(ProcessList* this);
+
+#endif

openbsd/Platform.c

+/*
+htop - openbsd/Platform.c
+(C) 2014 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "Platform.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 "OpenBSDProcess.h"
+#include "OpenBSDProcessList.h"
+
+#include <sys/sched.h>
+#include <uvm/uvmexp.h>
+#include <sys/param.h>
+#include <sys/swap.h>
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <time.h>
+
+/*{
+#include "Action.h"
+#include "BatteryMeter.h"
+
+extern ProcessFieldData Process_fields[];
+
+}*/
+
+#define MAXCPU 256
+// XXX: probably should be a struct member
+static int64_t old_v[MAXCPU][5];
+
+/*
+ * Copyright (c) 1984, 1989, William LeFebvre, Rice University
+ * Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
+ *
+ * Taken directly from OpenBSD's top(1).
+ *
+ * percentages(cnt, out, new, old, diffs) - calculate percentage change
+ * between array "old" and "new", putting the percentages in "out".
+ * "cnt" is size of each array and "diffs" is used for scratch space.
+ * The array "old" is updated on each call.
+ * The routine assumes modulo arithmetic.  This function is especially
+ * useful on BSD machines for calculating cpu state percentages.
+ */
+static int percentages(int cnt, int64_t *out, int64_t *new, int64_t *old, int64_t *diffs) {
+	int64_t change, total_change, *dp, half_total;
+	int i;
+
+	/* initialization */
+	total_change = 0;
+	dp = diffs;
+
+	/* calculate changes for each state and the overall change */
+	for (i = 0; i < cnt; i++) {
+		if ((change = *new - *old) < 0) {
+			/* this only happens when the counter wraps */
+			change = INT64_MAX - *old + *new;
+		}
+		total_change += (*dp++ = change);
+		*old++ = *new++;
+	}
+
+	/* avoid divide by zero potential */
+	if (total_change == 0)
+		total_change = 1;
+
+	/* calculate percentages based on overall change, rounding up */
+	half_total = total_change / 2l;
+	for (i = 0; i < cnt; i++)
+		*out++ = ((*diffs++ * 1000 + half_total) / total_change);
+
+	/* return the total in case the caller wants to use it */
+	return (total_change);
+}
+
+ProcessField Platform_defaultFields[] = { PID, USER, PRIORITY, NICE, M_SIZE, M_RESIDENT, STATE, PERCENT_CPU, PERCENT_MEM, TIME, COMM, 0 };
+
+int Platform_numberOfFields = LAST_PROCESSFIELD;
+
+void Platform_setBindings(Htop_Action* keys) {
+   (void) keys;
+}
+
+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
+};
+
+// preserved from FreeBSD port
+int Platform_getUptime() {
+   struct timeval bootTime, currTime;
+   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;
+   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 32766;
+}
+
+double Platform_setCPUValues(Meter* this, int cpu) {
+	int i;
+	double perc;
+
+	OpenBSDProcessList* pl = (OpenBSDProcessList*) this->pl;
+	CPUData* cpuData = &(pl->cpus[cpu]);
+	int64_t new_v[CPUSTATES], diff_v[CPUSTATES], scratch_v[CPUSTATES];
+	double *v = this->values;
+	size_t size = sizeof(double) * CPUSTATES;
+	int mib[] = { CTL_KERN, KERN_CPTIME2, cpu-1 };
+	if (sysctl(mib, 3, new_v, &size, NULL, 0) == -1) {
+		puts("err!");
+		//return 0.;
+	}
+
+	// XXX: why?
+	cpuData->totalPeriod = 1;
+
+	percentages(CPUSTATES, diff_v, new_v,
+			(int64_t *)old_v[cpu-1], scratch_v);
+
+	for (i = 0; i < CPUSTATES; i++) {
+		old_v[cpu-1][i] = new_v[i];
+		v[i] = diff_v[i] / 10.;
+	}
+
+	Meter_setItems(this, 4);
+
+	perc = v[0] + v[1] + v[2] + v[3];
+
+	if (perc <= 100. && perc >= 0.) {
+		return perc;
+	} else {
+		return 12.34;
+	}
+}
+
+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;
+}
+
+/*
+ * Copyright (c) 1994 Thorsten Lockert <tholo@sigmasoft.com>
+ * All rights reserved.
+ *
+ * Taken almost directly from OpenBSD's top(1)
+ */
+void Platform_setSwapValues(Meter* this) {
+	ProcessList* pl = (ProcessList*) this->pl;
+	struct swapent *swdev;
+	unsigned long long int total, used;
+	int nswap, rnswap, i;
+	nswap = swapctl(SWAP_NSWAP, 0, 0);
+	if (nswap == 0) {
+		return;
+	}
+
+	swdev = calloc(nswap, sizeof(*swdev));
+	if (swdev == NULL) {
+		return;
+	}
+
+	rnswap = swapctl(SWAP_STATS, swdev, nswap);
+	if (rnswap == -1) {
+		free(swdev);
+		return;
+	}
+
+	// if rnswap != nswap, then what?
+
+	/* Total things up */
+	total = used = 0;
+	for (i = 0; i < nswap; i++) {
+		if (swdev[i].se_flags & SWF_ENABLE) {
+			used += (swdev[i].se_inuse / (1024 / DEV_BSIZE));
+			total += (swdev[i].se_nblks / (1024 / DEV_BSIZE));
+		}
+	}
+
+	this->total = pl->totalSwap = total;
+	this->values[0] = pl->usedSwap = used;
+
+	free(swdev);
+}
+
+void Platform_setTasksValues(Meter* this) {
+   // TODO
+}

openbsd/Platform.h

+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_Platform
+#define HEADER_Platform
+/*
+htop - openbsd/Platform.h
+(C) 2014 Hisham H. Muhammad
+(C) 2015 Michael McConville
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "Action.h"
+#include "BatteryMeter.h"
+
+extern ProcessFieldData Process_fields[];
+
+
+#define MAXCPU 256
+// XXX: probably should be a struct member
+/*
+ * Copyright (c) 1984, 1989, William LeFebvre, Rice University
+ * Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
+ *
+ * Taken directly from OpenBSD's top(1).
+ *
+ * percentages(cnt, out, new, old, diffs) - calculate percentage change
+ * between array "old" and "new", putting the percentages in "out".
+ * "cnt" is size of each array and "diffs" is used for scratch space.
+ * The array "old" is updated on each call.
+ * The routine assumes modulo arithmetic.  This function is especially
+ * useful on BSD machines for calculating cpu state percentages.
+ */
+extern ProcessField Platform_defaultFields[];
+
+extern int Platform_numberOfFields;
+
+void Platform_setBindings(Htop_Action* keys);
+
+extern MeterClass* Platform_meterTypes[];
+
+// preserved from FreeBSD port
+int Platform_getUptime();
+
+void Platform_getLoadAverage(double* one, double* five, double* fifteen);
+
+int Platform_getMaxPid();
+
+double Platform_setCPUValues(Meter* this, int cpu);
+
+void Platform_setMemoryValues(Meter* this);
+
+/*
+ * Copyright (c) 1994 Thorsten Lockert <tholo@sigmasoft.com>
+ * All rights reserved.
+ *
+ * Taken almost directly from OpenBSD's top(1)
+ */
+void Platform_setSwapValues(Meter* this);
+
+void Platform_setTasksValues(Meter* this);
+
+#endif