1 files changed, 17 insertions, 0 deletions
diff --git a/src/unique_fd.cc b/src/unique_fd.cc
new file mode 100644
index 0000000..a289f0e
--- /dev/null
+++ b/src/unique_fd.cc
@@ -0,0 +1,17 @@
+#include "common.hh"
+
+#include "unique_fd.hh"
+
+#include <unistd.h>
+
+void unique_fd::reset(int fd) {
+  if (fd_ >= 0)
+    close(fd_);
+  fd_ = fd;
+}
+
+unique_fd unique_fd::dup() {
+  if (fd_ >= 0)
+    return unique_fd(::dup(fd_));
+  return unique_fd();
+}