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Unified Diff: mojo/services/network/public/cpp/web_socket_write_queue.cc

Issue 1873463003: Remove mojo network service. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 8 months ago
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Index: mojo/services/network/public/cpp/web_socket_write_queue.cc
diff --git a/mojo/services/network/public/cpp/web_socket_write_queue.cc b/mojo/services/network/public/cpp/web_socket_write_queue.cc
deleted file mode 100644
index e47260a63ea85e1956e7ede8d8e9715abf27b2a5..0000000000000000000000000000000000000000
--- a/mojo/services/network/public/cpp/web_socket_write_queue.cc
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright 2014 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.
-
-#include "network/public/cpp/web_socket_write_queue.h"
-
-#include <stdint.h>
-
-#include "base/bind.h"
-#include "base/logging.h"
-
-namespace mojo {
-
-struct WebSocketWriteQueue::Operation {
- uint32_t num_bytes_;
- base::Callback<void(const char*)> callback_;
-
- const char* data_;
- // Only initialized if the initial Write fails. This saves a copy in
- // the common case.
- std::vector<char> data_copy_;
-};
-
-WebSocketWriteQueue::WebSocketWriteQueue(DataPipeProducerHandle handle)
- : handle_(handle), is_busy_(false), weak_factory_(this) {
-}
-
-WebSocketWriteQueue::~WebSocketWriteQueue() {
-}
-
-void WebSocketWriteQueue::Write(const char* data,
- uint32_t num_bytes,
- base::Callback<void(const char*)> callback) {
- Operation* op = new Operation;
- op->num_bytes_ = num_bytes;
- op->callback_ = callback;
- op->data_ = data;
- queue_.push_back(op);
-
- if (!is_busy_) {
- is_busy_ = true;
- // This call may reset |is_busy_| to false.
- TryToWrite();
- }
-
- if (is_busy_) {
- // If we have to wait, make a local copy of the data so we know it will
- // live until we need it.
- op->data_copy_.resize(num_bytes);
- memcpy(&op->data_copy_[0], data, num_bytes);
- op->data_ = &op->data_copy_[0];
- }
-}
-
-void WebSocketWriteQueue::TryToWrite() {
- DCHECK(is_busy_);
- DCHECK(!queue_.empty());
- do {
- Operation* op = queue_[0];
- uint32_t bytes_written = op->num_bytes_;
- MojoResult result = WriteDataRaw(
- handle_, op->data_, &bytes_written, MOJO_WRITE_DATA_FLAG_ALL_OR_NONE);
- if (result == MOJO_RESULT_SHOULD_WAIT) {
- Wait();
- return;
- }
-
- // Ensure |op| is deleted, whether or not |this| goes away.
- scoped_ptr<Operation> op_deleter(op);
- queue_.weak_erase(queue_.begin());
-
- // http://crbug.com/490193 This should run callback as well. May need to
- // change the callback signature.
- if (result != MOJO_RESULT_OK)
- return;
-
- base::WeakPtr<WebSocketWriteQueue> self(weak_factory_.GetWeakPtr());
-
- // This call may delete |this|. In that case, |self| will be invalidated.
- // It may re-enter Write() too. Because |is_busy_| is true during the whole
- // process, TryToWrite() won't be re-entered.
- op->callback_.Run(op->data_);
-
- if (!self)
- return;
- } while (!queue_.empty());
- is_busy_ = false;
-}
-
-void WebSocketWriteQueue::Wait() {
- DCHECK(is_busy_);
- handle_watcher_.Start(handle_,
- MOJO_HANDLE_SIGNAL_WRITABLE,
- MOJO_DEADLINE_INDEFINITE,
- base::Bind(&WebSocketWriteQueue::OnHandleReady,
- base::Unretained(this)));
-}
-
-void WebSocketWriteQueue::OnHandleReady(MojoResult result) {
- DCHECK(is_busy_);
- TryToWrite();
-}
-
-} // namespace mojo
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