From 0eb54384593a0ae5944731e0e7cd527970b05b73 Mon Sep 17 00:00:00 2001
From: er-azh <80633916+er-azh@users.noreply.github.com>
Date: Sat, 4 Feb 2023 15:56:06 +0330
Subject: Implement shared memory for FreeBSD

---
 freebsd/FreeBSDProcessList.c | 10 ++++++++++
 freebsd/Platform.c           |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

(limited to 'freebsd')

diff --git a/freebsd/FreeBSDProcessList.c b/freebsd/FreeBSDProcessList.c
index 2575d8fe..b7643222 100644
--- a/freebsd/FreeBSDProcessList.c
+++ b/freebsd/FreeBSDProcessList.c
@@ -25,6 +25,7 @@ in the source distribution for its full text.
 #include <sys/time.h>
 #include <sys/types.h>
 #include <sys/user.h>
+#include <sys/vmmeter.h>
 
 #include "CRT.h"
 #include "Compat.h"
@@ -49,6 +50,7 @@ static int MIB_vm_stats_vm_v_active_count[4];
 static int MIB_vm_stats_vm_v_cache_count[4];
 static int MIB_vm_stats_vm_v_inactive_count[4];
 static int MIB_vm_stats_vm_v_free_count[4];
+static int MIB_vm_vmtotal[2];
 
 static int MIB_vfs_bufspace[2];
 
@@ -82,6 +84,9 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, H
    len = 4; sysctlnametomib("vm.stats.vm.v_cache_count", MIB_vm_stats_vm_v_cache_count, &len);
    len = 4; sysctlnametomib("vm.stats.vm.v_inactive_count", MIB_vm_stats_vm_v_inactive_count, &len);
    len = 4; sysctlnametomib("vm.stats.vm.v_free_count", MIB_vm_stats_vm_v_free_count, &len);
+   MIB_vm_vmtotal[0] = CTL_VM;
+   MIB_vm_vmtotal[1] = VM_TOTAL;
+
 
    len = 2; sysctlnametomib("vfs.bufspace", MIB_vfs_bufspace, &len);
 
@@ -330,6 +335,7 @@ static inline void FreeBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    u_int memActive, memWire, cachedMem;
    long buffersMem;
    size_t len;
+   struct vmtotal vmtotal;
 
    //disabled for now, as it is always smaller than phycal amount of memory...
    //...to avoid "where is my memory?" questions
@@ -360,6 +366,10 @@ static inline void FreeBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    cachedMem *= pageSizeKb;
    pl->cachedMem = cachedMem;
 
+   len = sizeof(vmtotal);
+   sysctl(MIB_vm_vmtotal, 2, &(vmtotal), &len, NULL, 0);
+   pl->sharedMem = vmtotal.t_vmshr * pageSizeKb;
+
    if (fpl->zfs.enabled) {
       fpl->memWire -= fpl->zfs.size;
       pl->cachedMem += fpl->zfs.size;
diff --git a/freebsd/Platform.c b/freebsd/Platform.c
index 38d06169..646163af 100644
--- a/freebsd/Platform.c
+++ b/freebsd/Platform.c
@@ -232,7 +232,7 @@ void Platform_setMemoryValues(Meter* this) {
    this->total = pl->totalMem;
    this->values[MEMORY_METER_USED] = pl->usedMem;
    this->values[MEMORY_METER_BUFFERS] = pl->buffersMem;
-   // this->values[MEMORY_METER_SHARED] = "shared memory, like tmpfs and shm"
+   this->values[MEMORY_METER_SHARED] = pl->sharedMem;
    this->values[MEMORY_METER_CACHE] = pl->cachedMem;
    // this->values[MEMORY_METER_AVAILABLE] = "available memory"
 
-- 
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