Add new mode to other platforms and indicate mac only support in README

README.rst

@@ -124,6 +124,7 @@ The full usage::
           Set how many lines should be drawn in a graph. Default: 10
   -m <value>, --mem-mode
           Set the memory presentation mode, 0 for used/total, 1 for free memory and 2 for percentage.
+          Currently supported only by OSX
           Default: 0
 
 

freebsd/memory.cc

@@ -29,7 +29,7 @@
 #include "luts.h"
 #include "conversions.h"
 
-std::string mem_string( bool use_colors = false )
+std::string mem_string( bool use_colors = false, int mode = 0 )
 {
   // These values are in bytes
   //u_int total;

linux/memory.cc

@@ -24,7 +24,7 @@
 #include "luts.h"
 #include "conversions.h"
 
-std::string mem_string( bool use_colors = false )
+std::string mem_string( bool use_colors = false, int mode = 0 )
 {
   using std::string;
   using std::ifstream;

netbsd/memory.cc

@@ -28,7 +28,7 @@
 #include "conversions.h"
 #include "memory.h"
 
-std::string mem_string( bool use_colors = false )
+std::string mem_string( bool use_colors = false, int mode = 0 )
 {
   std::ostringstream oss;
 

openbsd/memory.cc

@@ -47,7 +47,7 @@ static int pageshift;
 #endif
 #define pagesh(size) ((size) << pageshift)
 
-std::string mem_string( bool use_colors = false )
+std::string mem_string( bool use_colors = false, int mode = 0 )
 {
   std::ostringstream oss;