Added stub native web worker support, including build support in preparation

for integrating the native client build.


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19479 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 63 insertions, 0 deletions

diff --git a/chrome/worker/nativewebworker_stub.h b/chrome/worker/nativewebworker_stub.h
new file mode 100644
index 0000000..6afe1db
--- /dev/null
+++ b/chrome/worker/nativewebworker_stub.h
@@ -0,0 +1,63 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_WORKER_NATIVEWORKER_STUB_H_
+#define CHROME_WORKER_NATIVEWORKER_STUB_H_
+// Native WebWorker support stub header.
+
+#include <stddef.h>
+
+// As we are not including the native client header files, several types
+// from them need to be named outside of structure/method declarations to
+// avoid compiler warnings/errors.
+
+struct NaClApp;
+struct NaClDesc;
+struct NaClSrpcChannel;
+
+namespace WebKit {
+class WebWorkerClient;
+}
+
+extern "C" {
+// The thunk type used by upcall (postMessage from worker) handling.
+typedef void (*NativeWorkerPostMessageFunc)(const char *str,
+                                            WebKit::WebWorkerClient* client);
+
+// Start a native webworker from the module in buffer.
+int NaClStartNativeWebWorker(char *buffer,
+                             size_t buf_len,
+                             struct NaClApp **nap,
+                             struct NaClSrpcChannel **untrusted_channel);
+
+// Performs a postMessage to the worker.
+int NaClPostMessageToNativeWebWorker(char *buffer,
+                                     size_t buf_len,
+                                     struct NaClApp **nap,
+                                     struct NaClSrpcChannel **untrusted_ch);
+
+// Causes a native web worker to be shut down.
+int NaClTerminateNativeWebWorker(struct NaClApp **nap,
+                                 struct NaClSrpcChannel **untrusted_channel);
+
+// Creates a channel that can be used to receive upcalls (postMessage from
+// a worker).
+int NaClCreateUpcallChannel(struct NaClDesc* desc[2]);
+
+// Part of the initialization of a worker.  Sends the descriptor to the
+// worker library to indicate where to send postMessage RPCs.
+int NaClSrpcSendUpcallDesc(struct NaClSrpcChannel *channel,
+                           struct NaClDesc *nacl_desc);
+
+// Runs an SRPC server loop on the specified channel.  The post_message_func
+// is invoked whenever the "postMessage" RPC is received.
+int NaClSrpcListenerLoop(struct NaClDesc *chrome_desc,
+                         NativeWorkerPostMessageFunc func,
+                         WebKit::WebWorkerClient* client);
+
+// Destroys the upcall channel.
+void NaClDestroyUpcallChannel(struct NaClDesc* desc[2]);
+}
+
+#endif  // CHROME_WORKER_NATIVEWORKER_STUB_H_