From 7852029a84bd2d88a0dfd9cb125dc3dda5efa1fc Mon Sep 17 00:00:00 2001
From: Doug MacEachern <dougm@hyperic.com>
Date: Sat, 12 Feb 2005 00:18:00 +0000
Subject: [PATCH] freebsd cpu mhz

---
 src/os/darwin/darwin_sigar.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/os/darwin/darwin_sigar.c b/src/os/darwin/darwin_sigar.c
index 5030f2ae..45b27adf 100644
--- a/src/os/darwin/darwin_sigar.c
+++ b/src/os/darwin/darwin_sigar.c
@@ -791,6 +791,13 @@ int sigar_file_system_usage_get(sigar_t *sigar,
     return SIGAR_OK;
 }
 
+#ifdef DARWIN
+#define CTL_HW_FREQ "hw.cpufrequency"
+#else
+/* XXX FreeBSD 5.x+ only? */ 
+#define CTL_HW_FREQ "machdep.tsc_freq"
+#endif
+
 int sigar_cpu_info_list_get(sigar_t *sigar,
                             sigar_cpu_info_list_t *cpu_infos)
 {
@@ -799,7 +806,7 @@ int sigar_cpu_info_list_get(sigar_t *sigar,
     size_t size;
 
     size = sizeof(value);
-    if (!sysctlbyname("hw.cpufrequency", &value, &size, NULL, 0)) {
+    if (!sysctlbyname(CTL_HW_FREQ, &value, &size, NULL, 0)) {
         mhz = value;
     }
     else {