Imported Upstream version 2.6.11upstream/2.6.11

1 files changed, 62 insertions, 0 deletions

diff --git a/src/mongo/util/net/socket_poll.cpp b/src/mongo/util/net/socket_poll.cpp
new file mode 100644
index 00000000000..a53d3e0ad03
--- /dev/null
+++ b/src/mongo/util/net/socket_poll.cpp
@@ -0,0 +1,62 @@
+/**
+ * Copyright 2012 10gen Inc.
+ *
+ * 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 "mongo/platform/basic.h"
+
+#include "mongo/base/init.h"
+#include "mongo/util/assert_util.h"
+#include "mongo/util/net/socket_poll.h"
+
+namespace mongo {
+
+#ifdef _WIN32
+
+    typedef int (WSAAPI *WSAPollFunction)(pollfd* fdarray, ULONG nfds, INT timeout);
+
+    static WSAPollFunction wsaPollFunction = NULL;
+
+    MONGO_INITIALIZER(DynamicLinkWin32Poll)(InitializerContext* context) {
+        HINSTANCE wsaPollLib = LoadLibraryW( L"Ws2_32.dll" );
+        if (wsaPollLib) {
+            wsaPollFunction =
+                reinterpret_cast<WSAPollFunction>(GetProcAddress(wsaPollLib, "WSAPoll"));
+        }
+
+        return Status::OK();
+    }
+
+    bool isPollSupported() { return wsaPollFunction != NULL; }
+
+    int socketPoll( pollfd* fdarray, unsigned long nfds, int timeout ) {
+        fassert(17185, isPollSupported());
+        return wsaPollFunction(fdarray, nfds, timeout);
+    }
+
+#else
+
+    bool isPollSupported() { return true; }
+
+    int socketPoll( pollfd* fdarray, unsigned long nfds, int timeout ) {
+        return ::poll(fdarray, nfds, timeout);
+    }
+
+#endif
+
+}
+
+
+
+