From 8895f09880f441c2075b703cdec0643ac70790aa Mon Sep 17 00:00:00 2001
From: SaltwaterC <saltwaterc@gmail.com>
Date: Mon, 16 Nov 2015 17:32:22 +0000
Subject: Add Darwin swap meter.

---
 darwin/Platform.c | 12 +++++++++---
 darwin/Platform.h |  3 +--
 2 files changed, 10 insertions(+), 5 deletions(-)

(limited to 'darwin')

diff --git a/darwin/Platform.c b/darwin/Platform.c
index 4a36fe05..73b47c4c 100644
--- a/darwin/Platform.c
+++ b/darwin/Platform.c
@@ -102,6 +102,7 @@ MeterClass* Platform_meterTypes[] = {
    &LoadAverageMeter_class,
    &LoadMeter_class,
    &MemoryMeter_class,
+   &SwapMeter_class,
    &TasksMeter_class,
    &BatteryMeter_class,
    &HostnameMeter_class,
@@ -226,7 +227,12 @@ void Platform_setMemoryValues(Meter* mtr) {
    mtr->values[2] = (double)vm->inactive_count * page_K;
 }
 
-void Platform_setSwapValues(Meter* this) {
-   (void) this;
-}
+void Platform_setSwapValues(Meter* mtr) {
+  int mib[2] = {CTL_VM, VM_SWAPUSAGE};
+  struct xsw_usage swapused;
+  size_t swlen = sizeof(swapused);
+  sysctl(mib, 2, &swapused, &swlen, NULL, 0);
 
+  mtr->total = swapused.xsu_total / 1024;
+  mtr->values[0] = swapused.xsu_used / 1024;
+}
diff --git a/darwin/Platform.h b/darwin/Platform.h
index fdf8b35b..d1b9ea5e 100644
--- a/darwin/Platform.h
+++ b/darwin/Platform.h
@@ -42,7 +42,6 @@ double Platform_setCPUValues(Meter* mtr, int cpu);
 
 void Platform_setMemoryValues(Meter* mtr);
 
-void Platform_setSwapValues(Meter* this);
-
+void Platform_setSwapValues(Meter* mtr);
 
 #endif
-- 
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