1 files changed, 87 insertions, 0 deletions
diff --git a/Source/cmFileLockResult.cxx b/Source/cmFileLockResult.cxx
new file mode 100644
index 0000000..9ca5d8a
--- /dev/null
+++ b/Source/cmFileLockResult.cxx
@@ -0,0 +1,87 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmFileLockResult.h"
+
+#include <errno.h>
+#include <string.h>
+
+#define WINMSG_BUF_LEN (1024)
+cmFileLockResult cmFileLockResult::MakeOk()
+{
+  return cmFileLockResult(OK, 0);
+}
+
+cmFileLockResult cmFileLockResult::MakeSystem()
+{
+#if defined(_WIN32)
+  const Error lastError = GetLastError();
+#else
+  const Error lastError = errno;
+#endif
+  return cmFileLockResult(SYSTEM, lastError);
+}
+
+cmFileLockResult cmFileLockResult::MakeTimeout()
+{
+  return cmFileLockResult(TIMEOUT, 0);
+}
+
+cmFileLockResult cmFileLockResult::MakeAlreadyLocked()
+{
+  return cmFileLockResult(ALREADY_LOCKED, 0);
+}
+
+cmFileLockResult cmFileLockResult::MakeInternal()
+{
+  return cmFileLockResult(INTERNAL, 0);
+}
+
+cmFileLockResult cmFileLockResult::MakeNoFunction()
+{
+  return cmFileLockResult(NO_FUNCTION, 0);
+}
+
+bool cmFileLockResult::IsOk() const
+{
+  return this->Type == OK;
+}
+
+std::string cmFileLockResult::GetOutputMessage() const
+{
+  switch (this->Type) {
+    case OK:
+      return "0";
+    case SYSTEM:
+#if defined(_WIN32)
+    {
+      char winmsg[WINMSG_BUF_LEN];
+      DWORD flags = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS;
+      if (FormatMessageA(flags, NULL, this->ErrorValue,
+                         MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                         (LPSTR)winmsg, WINMSG_BUF_LEN, NULL)) {
+        const std::string message = winmsg;
+        return message;
+      } else {
+        return "Internal error (FormatMessageA failed)";
+      }
+    }
+#else
+      return strerror(this->ErrorValue);
+#endif
+    case TIMEOUT:
+      return "Timeout reached";
+    case ALREADY_LOCKED:
+      return "File already locked";
+    case NO_FUNCTION:
+      return "'GUARD FUNCTION' not used in function definition";
+    case INTERNAL:
+    default:
+      return "Internal error";
+  }
+}
+
+cmFileLockResult::cmFileLockResult(ErrorType typeValue, Error errorValue)
+  : Type(typeValue)
+  , ErrorValue(errorValue)
+{
+}