First draft of the win32 implementation of iomgr.

Caveats:
-) The win32 pollset isn't threadsafe (yet).
-) Only client code is implemented.
-) Only very simple code has been tested with it yet.

1 files changed, 73 insertions, 0 deletions

diff --git a/src/core/iomgr/socket_windows.h b/src/core/iomgr/socket_windows.h
new file mode 100644
index 0000000000..ca85ea54cb
--- /dev/null
+++ b/src/core/iomgr/socket_windows.h
@@ -0,0 +1,73 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __GRPC_INTERNAL_IOMGR_HANDLE_WINDOWS_H__
+#define __GRPC_INTERNAL_IOMGR_HANDLE_WINDOWS_H__
+
+#include <windows.h>
+
+#include <grpc/support/sync.h>
+#include <grpc/support/atm.h>
+
+typedef struct grpc_winsocket_callback_info {
+  /* I hate Microsoft so much. This is supposed to be a WSAOVERLAPPED,
+   * but in order to get that definition, we need to include ws2tcpip.h,
+   * which needs to be included from the top, otherwise it'll clash with
+   * a previous inclusion of windows.h that in turns includes winsock.h.
+   * If anyone knows a way to do it properly, feel free to send a patch.
+   */
+  OVERLAPPED overlapped;
+  void(*cb)(void *opaque, int success);
+  void *opaque;
+  int has_pending_iocp;
+  DWORD bytes_transfered;
+  int wsa_error;
+} grpc_winsocket_callback_info;
+
+typedef struct grpc_winsocket {
+  SOCKET socket;
+
+  grpc_winsocket_callback_info write_info;
+  grpc_winsocket_callback_info read_info;
+
+  gpr_mu state_mu;
+} grpc_winsocket;
+
+/* Create a wrapped windows handle.
+This takes ownership of closing it. */
+grpc_winsocket *grpc_winsocket_create(SOCKET socket);
+
+void grpc_winsocket_shutdown(grpc_winsocket *socket);
+void grpc_winsocket_orphan(grpc_winsocket *socket);
+
+#endif /* __GRPC_INTERNAL_IOMGR_FD_POSIX_H_ */