Fill in shell functions/files for cooling type.

Change-Id: I8d18d3141e955adeffdd8122ebb17549c88edd77
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/utility.hpp b/utility.hpp
index b37987d..05fe60c 100644
--- a/utility.hpp
+++ b/utility.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <sdbusplus/bus.hpp>
+#include <unistd.h>
 
 namespace phosphor
 {
@@ -9,6 +10,37 @@ namespace fan
 namespace util
 {
 
+class FileDescriptor
+{
+    public:
+        FileDescriptor() = delete;
+        FileDescriptor(const FileDescriptor&) = delete;
+        FileDescriptor(FileDescriptor&&) = default;
+        FileDescriptor& operator=(const FileDescriptor&) = delete;
+        FileDescriptor& operator=(FileDescriptor&&) = default;
+
+        FileDescriptor(int fd) : fd(fd)
+        {
+        }
+
+        ~FileDescriptor()
+        {
+            if (fd != -1)
+            {
+                close(fd);
+            }
+        }
+
+        bool is_open()
+        {
+            return fd != -1;
+        }
+
+    private:
+        int fd = -1;
+
+};
+
 /**
  * @brief Get the inventory service name from the mapper object
  *