4c8a065e7f
Numerous changes since last FreeBSD port version. See CHANGELOG from distfile for details. PR: 152338 Submitted by: Charlie Kester corky1951@comcast.net (maintainer) Approved by: itetcu
127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
--- ./plugins/mem/mem.c.orig 2010-04-28 04:39:31.000000000 -0700
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+++ ./plugins/mem/mem.c 2010-11-17 11:11:10.000000000 -0800
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@@ -1,3 +1,6 @@
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+/* vim:set ts=4
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+ * Code for FreeBSD added by Charlie Kester <corky1951@comcast.net>
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+ */
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#include <time.h>
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#include <sys/time.h>
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#include <sys/types.h>
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@@ -6,6 +9,11 @@
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#include <string.h>
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#include <strings.h>
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+#if defined __FreeBSD__
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+#include <sys/sysctl.h>
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+#include <sys/resource.h>
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+#include <vm/vm_param.h>
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+#endif
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#include "panel.h"
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#include "misc.h"
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@@ -112,11 +120,104 @@
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stats.swap.total = mt[MT_SwapTotal].val;
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stats.swap.used = mt[MT_SwapTotal].val - mt[MT_SwapFree].val;
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}
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+#elif defined __FreeBSD__
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+
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+static void
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+mem_usage()
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+{
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+ static unsigned long realmem;
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+ static int mib_freecount[4], mib_cachecount[4], mib_inactivecount[4],
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+ mib_swapinfo[16], init = 0, pagesize;
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+ static u_int mib_free_size, mib_cache_size, mib_inactive_size,
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+ mib_swapinfo_size;
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+ struct xswdev xsw;
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+ long scale;
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+ size_t len;
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+ int freecount , cachecount, inactivecount, n;
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+
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+
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+ if (init == 0) {
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+ //initialize meminfo
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+ len = sizeof(unsigned long);
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+ if (sysctlbyname("hw.realmem", &realmem, &len, NULL, 0) == -1) {
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+ DBG("Can't get hw.realmem");
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+ return;
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+ }
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+ len = sizeof(int);
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+ if (sysctlbyname("vm.stats.vm.v_page_size", &pagesize, &len, NULL, 0) == -1) {
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+ DBG("Can't get vm page size");
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+ return;
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+ }
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+ mib_free_size = 4;
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+ if (sysctlnametomib("vm.stats.vm.v_free_count", mib_freecount, &mib_free_size) == -1) {
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+ DBG("Can't get mib for mem free stat");
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+ return;
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+ }
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+ mib_cache_size = 4;
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+ if (sysctlnametomib("vm.stats.vm.v_cache_count", mib_cachecount, &len) == -1) {
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+ DBG("Can't get mib for cached mem stat");
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+ return;
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+ }
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+ mib_inactive_size = 4;
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+ if (sysctlnametomib("vm.stats.vm.v_inactive_count", mib_inactivecount, &mib_inactive_size) == -1) {
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+ DBG("Can't get mib for mem inactive stat");
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+ return;
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+ }
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+ //initialize swapinfo
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+ mib_swapinfo_size = sizeof(mib_swapinfo) / sizeof(mib_swapinfo[0]);
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+ if (sysctlnametomib("vm.swap_info", mib_swapinfo, &mib_swapinfo_size) == -1) {
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+ DBG("Can't get mib for swapinfo");
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+ return;
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+ }
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+ init = 1;
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+ }
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+ //get current meminfo
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+ len = sizeof(int);
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+ if (sysctl(mib_freecount, mib_free_size, &freecount, &len, NULL, 0) == -1) {
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+ DBG("Couldn't get mem free stat");
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+ return;
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+ }
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+ if (sysctl(mib_cachecount, mib_cache_size, &cachecount, &len, NULL, 0) == -1) {
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+ DBG("Couldn't get cached mem stat");
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+ return;
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+ }
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+ if (sysctl(mib_inactivecount, mib_inactive_size, &inactivecount, &len, NULL, 0) == -1) {
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+ DBG("Couldn't get inactive mem stat");
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+ return;
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+ }
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+ //save in kilobytes(same as /proc/meminfo)
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+ stats.mem.total = realmem / 1024;
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+ //For FreeBSD, there doesn't seem to be any firm consensus on the meaning of "memory used".
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+ //Some utils count only wired memory as used, while others also include active and inactive memory.
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+ //
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+ //The 'top' utility doesn't bother to calculate "memory used" at all, but simply reports the values for
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+ //active, inactive, wired, cached, and free. Unfortunately we can't follow that sensible approach here.
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+ //
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+ //The calculation below reflects the interpretation used by the sysinfo and freebsd_memory utils.
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+ stats.mem.used = (realmem - pagesize * (freecount + cachecount + inactivecount)) / 1024;
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+
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+ //get swapinfo
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+ scale = pagesize / 1024;
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+ for (n = 0;; ++n) {
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+ mib_swapinfo[mib_swapinfo_size] = n;
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+ len = sizeof xsw;
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+ if (sysctl(mib_swapinfo, mib_swapinfo_size + 1, &xsw, &len, 0, 0) == -1) {
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+ // not necessarily an error!
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+ break;
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+ }
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+ if (xsw.xsw_version != XSWDEV_VERSION) {
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+ DBG("XSW version mismatch");
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+ break;
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+ }
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+ stats.swap.total += xsw.xsw_nblks * scale;
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+ stats.swap.used += xsw.xsw_used * scale;
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+ }
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+}
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#else
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static void
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mem_usage()
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{
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-
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+
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}
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#endif
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