From 38b08d791b159424c9c9f9a21876f73f6020062b Mon Sep 17 00:00:00 2001
From: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
Date: Fri, 14 Apr 2017 18:12:14 +0530
Subject: Open device and populate file descriptor

Change-Id: I8159f71ff3dd087f10cdf3b013e1acb60d4758fb
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
---
 file.hpp | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 file.hpp

(limited to 'file.hpp')

diff --git a/file.hpp b/file.hpp
new file mode 100644
index 0000000..4d0a83c
--- /dev/null
+++ b/file.hpp
@@ -0,0 +1,51 @@
+#pragma once
+
+#include <unistd.h>
+namespace open_power
+{
+namespace occ
+{
+namespace pass_through
+{
+/** @class FileDescriptor
+ *  @brief Responsible for handling file descriptor
+ */
+class FileDescriptor
+{
+    private:
+        /** @brief File descriptor for the gpio input device */
+        int fd = -1;
+
+    public:
+        FileDescriptor() = delete;
+        FileDescriptor(const FileDescriptor&) = delete;
+        FileDescriptor& operator=(const FileDescriptor&) = delete;
+        FileDescriptor(FileDescriptor&&) = delete;
+        FileDescriptor& operator=(FileDescriptor&&) = delete;
+
+        /** @brief Saves File descriptor and uses it to do file operation
+         *
+         *  @param[in] fd - File descriptor
+         */
+        FileDescriptor(int fd) : fd(fd)
+        {
+            // Nothing
+        }
+
+        ~FileDescriptor()
+        {
+            if (fd >=0)
+            {
+                close(fd);
+            }
+        }
+
+        int operator()()
+        {
+            return fd;
+        }
+};
+
+} // namespace pass_through
+} // namespace occ
+} // namespace open-power
-- 
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