[gnome-system-monitor] procproperties: unbreak on OpenBSD

[Antoine Jacoutot <ajacoutot src gnome org>]

commit 94be681c159b56ad42afb13c3e18d59be4422558
Author: Antoine Jacoutot <ajacoutot gnome org>
Date:   Fri Mar 30 10:55:08 2012 +0200

    procproperties: unbreak on OpenBSD
    
    The asm/param.h header is only found on Linux.
    On OpenBSD, the HZ tick is not defined in any header but can be
    retrieved from the running kernel using the sysctl(3) interface.

 src/procproperties.cpp |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)
---
diff --git a/src/procproperties.cpp b/src/procproperties.cpp
index ee1ced5..6821893 100644
--- a/src/procproperties.cpp
+++ b/src/procproperties.cpp
@@ -24,7 +24,12 @@
 #include <glibtop/procmem.h>
 #include <glibtop/procmap.h>
 #include <glibtop/procstate.h>
+#if defined (__linux__)
 #include <asm/param.h>
+#elif defined (__OpenBSD__)
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#endif
 
 #include "procman.h"
 #include "procproperties.h"
@@ -109,6 +114,18 @@ fill_proc_properties (GtkWidget *tree, ProcInfo *info)
 
     get_process_memory_info(info);
 
+#if defined (__OpenBSD__)
+    struct clockinfo cinf;
+    size_t size = sizeof (cinf);
+    int HZ;
+    int mib[] = { CTL_KERN, KERN_CLOCKRATE };
+
+    if (sysctl (mib, nitems(mib), &cinf, &size, NULL, 0) == -1)
+        HZ = 100;
+    else
+        HZ = cinf.hz;
+#endif
+
     proc_arg proc_props[] = {
         { N_("Process Name"), g_strdup_printf("%s", info->name)},
         { N_("User"), g_strdup_printf("%s (%d)", info->user.c_str(), info->uid)},