1 files changed, 64 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/sys/windows/LockFile.cpp b/qpid/cpp/src/qpid/sys/windows/LockFile.cpp
new file mode 100755
index 0000000000..048c2d5b18
--- /dev/null
+++ b/qpid/cpp/src/qpid/sys/windows/LockFile.cpp
@@ -0,0 +1,64 @@
+/*
+ *
+ * Copyright (c) 2008 The Apache Software Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include "qpid/sys/LockFile.h"
+#include "qpid/sys/windows/check.h"
+
+#include <windows.h>
+
+namespace qpid {
+namespace sys {
+
+class LockFilePrivate {
+    friend class LockFile;
+
+    HANDLE fd;
+
+public:
+    LockFilePrivate(HANDLE f) : fd(f) {}
+};
+
+LockFile::LockFile(const std::string& path_, bool create)
+  : path(path_), created(create) {
+
+    HANDLE h = ::CreateFile(path.c_str(),
+                          create ? (GENERIC_READ|GENERIC_WRITE) : GENERIC_READ,
+                          FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
+                          0, /* Default security */
+                          create ? OPEN_ALWAYS : OPEN_EXISTING,
+                          FILE_FLAG_DELETE_ON_CLOSE, /* Delete file when closed */
+                          NULL);
+    if (h == INVALID_HANDLE_VALUE)
+        throw qpid::Exception(path + ": " + qpid::sys::strError(GetLastError()));
+
+    // Lock up to 4Gb
+    if (!::LockFile(h, 0, 0, 0xffffffff, 0))
+        throw qpid::Exception(path + ": " + qpid::sys::strError(GetLastError()));
+    impl.reset(new LockFilePrivate(h));
+}
+
+LockFile::~LockFile() {
+    if (impl) {
+        if (impl->fd != INVALID_HANDLE_VALUE) {
+            ::UnlockFile(impl->fd, 0, 0, 0xffffffff, 0);
+            ::CloseHandle(impl->fd);
+        }
+    }
+}
+
+}}  /* namespace qpid::sys */