From dadcb87ad0a72555c4797a0eeaafb3236bf50295 Mon Sep 17 00:00:00 2001
From: Alexander Momchilov <alexandermomchilov@gmail.com>
Date: Sun, 22 Aug 2021 12:30:08 -0400
Subject: Extract Darwin "PlatformHelpers"

---
 darwin/DarwinProcessList.c | 44 ++------------------------------------------
 1 file changed, 2 insertions(+), 42 deletions(-)

(limited to 'darwin/DarwinProcessList.c')

diff --git a/darwin/DarwinProcessList.c b/darwin/DarwinProcessList.c
index a7db0e43..1e865f59 100644
--- a/darwin/DarwinProcessList.c
+++ b/darwin/DarwinProcessList.c
@@ -22,51 +22,11 @@ in the source distribution for its full text.
 #include "ProcessList.h"
 #include "darwin/DarwinProcess.h"
 #include "darwin/Platform.h"
+#include "darwin/PlatformHelpers.h"
 #include "generic/openzfs_sysctl.h"
 #include "zfs/ZfsArcStats.h"
 
 
-struct kern {
-   short int version[3];
-};
-
-static void GetKernelVersion(struct kern* k) {
-   static short int version_[3] = {0};
-   if (!version_[0]) {
-      // just in case it fails someday
-      version_[0] = version_[1] = version_[2] = -1;
-      char str[256] = {0};
-      size_t size = sizeof(str);
-      int ret = sysctlbyname("kern.osrelease", str, &size, NULL, 0);
-      if (ret == 0) {
-         sscanf(str, "%hd.%hd.%hd", &version_[0], &version_[1], &version_[2]);
-      }
-   }
-   memcpy(k->version, version_, sizeof(version_));
-}
-
-/* compare the given os version with the one installed returns:
-0 if equals the installed version
-positive value if less than the installed version
-negative value if more than the installed version
-*/
-static int CompareKernelVersion(short int major, short int minor, short int component) {
-   struct kern k;
-   GetKernelVersion(&k);
-
-   if (k.version[0] != major) {
-      return k.version[0] - major;
-   }
-   if (k.version[1] != minor) {
-      return k.version[1] - minor;
-   }
-   if (k.version[2] != component) {
-      return k.version[2] - component;
-   }
-
-   return 0;
-}
-
 static void ProcessList_getHostInfo(host_basic_info_data_t* p) {
    mach_msg_type_number_t info_size = HOST_BASIC_INFO_COUNT;
 
@@ -216,7 +176,7 @@ void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) {
       }
 
       // Disabled for High Sierra due to bug in macOS High Sierra
-      bool isScanThreadSupported  = ! ( CompareKernelVersion(17, 0, 0) >= 0 && CompareKernelVersion(17, 5, 0) < 0);
+      bool isScanThreadSupported  = !(Platform_CompareKernelVersion(17, 0, 0) >= 0 && Platform_CompareKernelVersion(17, 5, 0) < 0);
 
       if (isScanThreadSupported) {
          DarwinProcess_scanThreads(proc);
-- 
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