From 28712f22b1a832018915f7721b394fb693569132 Mon Sep 17 00:00:00 2001
From: Hisham Muhammad <hisham@gobolinux.org>
Date: Thu, 27 Nov 2014 17:44:55 -0200
Subject: [PATCH] Reading first bits of data!

---
 freebsd/FreeBSDProcessList.c | 58 +++++++++++++++++++++++++++++++-----
 freebsd/FreeBSDProcessList.h | 10 ++++++-
 2 files changed, 59 insertions(+), 9 deletions(-)

diff --git a/freebsd/FreeBSDProcessList.c b/freebsd/FreeBSDProcessList.c
index 275c1082..c75fb10f 100644
--- a/freebsd/FreeBSDProcessList.c
+++ b/freebsd/FreeBSDProcessList.c
@@ -1,39 +1,81 @@
 /*
-htop - UnsupportedProcessList.c
+htop - FreeBSDProcessList.c
 (C) 2014 Hisham H. Muhammad
 Released under the GNU GPL, see the COPYING file
 in the source distribution for its full text.
 */
 
 #include "ProcessList.h"
+#include "FreeBSDProcessList.h"
 
+#include <unistd.h>
 #include <stdlib.h>
+#include <sys/types.h>
 #include <sys/sysctl.h>
+#include <fcntl.h>
 
 /*{
 
+#include <kvm.h>
+
+typedef struct FreeBSDProcessList_ {
+   ProcessList super;
+   kvm_t* kd;
+} FreeBSDProcessList;
+
 }*/
 
+static int MIB_vm_stats_vm_v_wire_count[4];
+static int MIB_hw_physmem[2];
+
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList) {
-   ProcessList* this = calloc(1, sizeof(ProcessList));
-   ProcessList_init(this, usersTable, pidWhiteList);
+   FreeBSDProcessList* this = calloc(1, sizeof(FreeBSDProcessList));
+   ProcessList* pl = (ProcessList*) this;
+   ProcessList_init((ProcessList*)this, usersTable, pidWhiteList);
 
    int cpus = 1;
    size_t sizeof_cpus = sizeof(cpus);
    int err = sysctlbyname("hw.ncpu", &cpus, &sizeof_cpus, NULL, 0);
    if (err) cpus = 1;
-   this->cpuCount = MAX(cpus, 1);
-   this->cpus = realloc(this->cpus, cpus * sizeof(CPUData));
+   pl->cpuCount = MAX(cpus, 1);
+   pl->cpus = realloc(pl->cpus, cpus * sizeof(CPUData));
 
    for (int i = 0; i < cpus; i++) {
-      this->cpus[i].totalTime = 1;
-      this->cpus[i].totalPeriod = 1;
+      pl->cpus[i].totalTime = 1;
+      pl->cpus[i].totalPeriod = 1;
    }
+   
+   size_t len = 4;
+   sysctlnametomib("vm.stats.vm.v_wire_count", MIB_vm_stats_vm_v_wire_count, &len);
+   len = 2;
+   sysctlnametomib("hw.physmem", MIB_hw_physmem, &len);
 
-   return this;
+   return (ProcessList*) this;
+}
+
+static inline void FreeBSDProcessList_scanMemoryInfo(ProcessList* pl) {
+   const FreeBSDProcessList* fpl = (FreeBSDProcessList*) pl;
+   
+   unsigned long long int swapFree = 0;
+   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 *= PAGE_SIZE / 1024;
+   pl->freeMem = pl->totalMem - pl->usedMem;
+   
+   pl->sharedMem = 0;
+   pl->buffersMem = 0;
+   pl->cachedMem = 0;
+   pl->totalSwap = 0;
+   swapFree = 0;
+   pl->usedSwap = pl->totalSwap - swapFree;
 }
 
 void ProcessList_scan(ProcessList* this) {
    (void) this;
+
+   FreeBSDProcessList_scanMemoryInfo(this);
+
    // stub!
 }
diff --git a/freebsd/FreeBSDProcessList.h b/freebsd/FreeBSDProcessList.h
index ed9a7a36..9389e3aa 100644
--- a/freebsd/FreeBSDProcessList.h
+++ b/freebsd/FreeBSDProcessList.h
@@ -3,13 +3,21 @@
 #ifndef HEADER_FreeBSDProcessList
 #define HEADER_FreeBSDProcessList
 /*
-htop - UnsupportedProcessList.h
+htop - FreeBSDProcessList.h
 (C) 2014 Hisham H. Muhammad
 Released under the GNU GPL, see the COPYING file
 in the source distribution for its full text.
 */
 
 
+#include <kvm.h>
+
+typedef struct FreeBSDProcessList_ {
+   ProcessList super;
+   kvm_t* kd;
+} FreeBSDProcessList;
+
+
 
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList);