From ce9d743824be796471bae9b57c0185ef8ec1b804 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Tue, 8 Nov 2016 15:23:13 +0300
Subject: Add auto_fd::close()

---
 butl/fdstream | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'butl/fdstream')

diff --git a/butl/fdstream b/butl/fdstream
index 9c7274d..289d925 100644
--- a/butl/fdstream
+++ b/butl/fdstream
@@ -19,8 +19,7 @@
 namespace butl
 {
   // RAII type for file descriptors. Note that failure to close the descriptor
-  // is silently ignored by both the destructor and reset() (thought we could
-  // probably provide the close() function that throws).
+  // is silently ignored by both the destructor and reset().
   //
   // The descriptor can be negative. Such a descriptor is treated as unopened
   // and is not closed.
@@ -28,7 +27,7 @@ namespace butl
   struct nullfd_t {constexpr explicit nullfd_t (int) {}};
   constexpr const nullfd_t nullfd (-1);
 
-  class auto_fd
+  class LIBBUTL_EXPORT auto_fd
   {
   public:
     auto_fd (nullfd_t = nullfd): fd_ (-1) {}
@@ -53,6 +52,12 @@ namespace butl
     void
     reset (int fd = -1) noexcept;
 
+    // Close an open file descriptor. Throw ios::failure on failure. The object
+    // become unopened whenever the exception is thrown or not.
+    //
+    void
+    close ();
+
   private:
     int fd_;
   };
-- 
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