Implement a GNU free -m clone.

examples/Makefile.am

@@ -4,7 +4,7 @@ AM_LDFLAGS			= $(LIBGTOP_EXTRA_LIBS)
 
 noinst_PROGRAMS	= 	first second pprint procargs df netlist \
 			  mountlist procmap netload sysdeps timings \
-			  openfiles smp proclist mem wd affinity
+			  openfiles smp proclist free wd affinity
 
 first_SOURCES		= first.c
 first_LDADD		= $(top_builddir)/lib/libgtop-2.0.la
@@ -51,8 +51,8 @@ proclist_LDADD		= $(top_builddir)/lib/libgtop-2.0.la
 wd_SOURCES	= wd.c
 wd_LDADD	= $(top_builddir)/lib/libgtop-2.0.la
 
-mem_SOURCE	= mem.c
-mem_LDADD	= $(top_builddir)/lib/libgtop-2.0.la
+free_SOURCE	= mem.c
+free_LDADD	= $(top_builddir)/lib/libgtop-2.0.la
 
 affinity_SOURCES	= affinity.c
 affinity_LDADD	= $(top_builddir)/lib/libgtop-2.0.la

examples/free.c

@@ -0,0 +1,44 @@
+#include <glibtop.h>
+#include <glibtop/mem.h>
+#include <glibtop/swap.h>
+
+#include <glib.h>
+#include <unistd.h>
+
+static unsigned mb(guint64 n)
+{
+        return n >> 20;
+}
+
+int main(int argc, char **argv)
+{
+        glibtop_mem mem;
+        glibtop_swap swap;
+
+	glibtop_init();
+
+        glibtop_get_mem(&mem);
+        glibtop_get_swap(&swap);
+
+        printf("              total        used        free      shared  buff/cache   available\n");
+
+        printf("%-7s %11u %11u %11u %11u %11u %11u\n",
+               "Mem:",
+                mb(mem.total),
+                mb(mem.used - mem.buffer - mem.cached),
+                mb(mem.free),
+                mb(mem.shared),
+                mb(mem.buffer + mem.cached),
+                mb(mem.total - mem.user));
+
+        printf("%-7s %11u %11u %11u\n",
+               "Swap:",
+                mb(swap.total),
+                mb(swap.used),
+                mb(swap.free));
+
+	glibtop_close();
+
+	return 0;
+}
+

examples/mem.c

@@ -1,21 +0,0 @@
-#include <glibtop.h>
-#include <glibtop/mem.h>
-
-#include <glib.h>
-#include <unistd.h>
-
-int main(int argc, char **argv)
-{
-	glibtop_mem buf;
-
-	glibtop_init();
-
-	g_print("%lx\n", glibtop_global_server->features);
-
-	glibtop_get_mem(&buf);
-
-	glibtop_close();
-
-	return 0;
-}
-