commit c3bffed7e47080667008e8272c64a2612e9bd73c
author Matt Spinler <spinler@us.ibm.com> Fri Mar 10 09:05:30 2017 -0600
committer Matt Spinler <spinler@us.ibm.com> Tue Mar 14 15:37:27 2017 -0500
tree 0846a97dbf73ec3828416312a182d10b84600a8b
parent 12bdf058149dcab523f91c77aa734076a1afacaa

Have the Target class manage the file descriptor

The sysfs file descriptor will now stay open from first
use until the Target class is destroyed.

Change-Id: Ib9803a527115cc75ecc9a5351d1e748ccd54a993
Signed-off-by: Matt Spinler <spinler@us.ibm.com>

targeting.hpp

diff --git a/targeting.hpp b/targeting.hpp
index 92c224e..463ccc5 100644
--- a/targeting.hpp
+++ b/targeting.hpp
@@ -2,6 +2,7 @@
 
 #include <memory>
 #include <vector>
+#include "filedescriptor.hpp"
 
 namespace openpower
 {
@@ -28,7 +29,7 @@
          * @param[in] - The sysfs device path
          */
         Target(size_t position, const std::string& devPath) :
-            pos(position), path(devPath)
+            pos(position), cfamPath(devPath)
         {
         }
 
@@ -47,13 +48,19 @@
         }
 
         /**
-         * Returns the path
+         * Returns the CFAM sysfs path
          */
-        inline auto getPath() const
+        inline auto getCFAMPath() const
         {
-            return path;
+            return cfamPath;
         }
 
+        /**
+         * Returns the file descriptor to use
+         * for read/writeCFAM operations.
+         */
+        int getCFAMFD();
+
     private:
 
         /**
@@ -62,9 +69,14 @@
         size_t pos;
 
         /**
-         * The sysfs device path
+         * The sysfs device path for the CFAM
          */
-        const std::string path;
+        const std::string cfamPath;
+
+        /**
+         * The file descriptor to use for read/writeCFAMReg
+         */
+        std::unique_ptr<openpower::util::FileDescriptor> cfamFD;
 };