Initial checkin of gRPC to third_party/

third_party/grpc/src/core/iomgr/tcp_posix.h

 /*
- * Copyright (C) 2013 Google Inc. All rights reserved.
+ *
+ * Copyright 2015-2016, 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 MIDIInput_h
-#define MIDIInput_h
+#ifndef GRPC_INTERNAL_CORE_IOMGR_TCP_POSIX_H
+#define GRPC_INTERNAL_CORE_IOMGR_TCP_POSIX_H
+/*
+   Low level TCP "bottom half" implementation, for use by transports built on
+   top of a TCP connection.
 
-#include "modules/EventTargetModules.h"
-#include "modules/webmidi/MIDIAccessor.h"
-#include "modules/webmidi/MIDIPort.h"
+   Note that this file does not (yet) include APIs for creating the socket in
+   the first place.
 
-namespace blink {
+   All calls passing slice transfer ownership of a slice refcount unless
+   otherwise specified.
+*/
 
-class MIDIAccess;
+#include "src/core/iomgr/endpoint.h"
+#include "src/core/iomgr/fd_posix.h"
 
-class MIDIInput final : public MIDIPort {
-    DEFINE_WRAPPERTYPEINFO();
-public:
-    static MIDIInput* create(MIDIAccess*, const String& id, const String& manufacturer, const String& name, const String& version, MIDIAccessor::MIDIPortState);
-    ~MIDIInput() override { }
+#define GRPC_TCP_DEFAULT_READ_SLICE_SIZE 8192
 
-    EventListener* onmidimessage();
-    void setOnmidimessage(EventListener*);
+extern int grpc_tcp_trace;
 
-    // EventTarget
-    const AtomicString& interfaceName() const override { return EventTargetNames::MIDIInput; }
+/* Create a tcp endpoint given a file desciptor and a read slice size.
+   Takes ownership of fd. */
+grpc_endpoint *grpc_tcp_create(grpc_fd *fd, size_t read_slice_size,
+                               const char *peer_string);
 
-    // |timeStamp| is a DOMHighResTimeStamp in the time coordinate system of performance.now().
-    void didReceiveMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStamp);
+/* Return the tcp endpoint's fd, or -1 if this is not available. Does not
+   release the fd.
+   Requires: ep must be a tcp endpoint.
+ */
+int grpc_tcp_fd(grpc_endpoint *ep);
 
-    DECLARE_VIRTUAL_TRACE();
+/* Destroy the tcp endpoint without closing its fd. *fd will be set and done
+ * will be called when the endpoint is destroyed.
+ * Requires: ep must be a tcp endpoint and fd must not be NULL. */
+void grpc_tcp_destroy_and_release_fd(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
+                                     int *fd, grpc_closure *done);
 
-protected:
-    bool addEventListenerInternal(const AtomicString& eventType, EventListener*, const EventListenerOptions&) override;
-
-private:
-    MIDIInput(MIDIAccess*, const String& id, const String& manufacturer, const String& name, const String& version, MIDIAccessor::MIDIPortState);
-};
-
-} // namespace blink
-
-#endif // MIDIInput_h
+#endif /* GRPC_INTERNAL_CORE_IOMGR_TCP_POSIX_H */