Remove the unneeded libweave directory

Change-Id: I30fd8c5626cf83da6415ffa14a2019ef43be9916
Reviewed-on: https://weave-review.googlesource.com/1450
Reviewed-by: Paul Westbrook <pwestbro@google.com>

1 files changed, 95 insertions, 0 deletions

diff --git a/src/commands/command_queue.h b/src/commands/command_queue.h
new file mode 100644
index 0000000..74ed86f
--- /dev/null
+++ b/src/commands/command_queue.h
@@ -0,0 +1,95 @@
+// Copyright 2015 The Weave 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 LIBWEAVE_SRC_COMMANDS_COMMAND_QUEUE_H_
+#define LIBWEAVE_SRC_COMMANDS_COMMAND_QUEUE_H_
+
+#include <map>
+#include <memory>
+#include <queue>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include <base/callback.h>
+#include <base/macros.h>
+#include <base/time/time.h>
+#include <weave/device.h>
+
+#include "src/commands/command_instance.h"
+
+namespace weave {
+
+class CommandQueue final {
+ public:
+  CommandQueue() = default;
+
+  // TODO: Remove AddCommandAddedCallback and AddCommandRemovedCallback.
+  using CommandCallback = base::Callback<void(Command* command)>;
+
+  // Adds notifications callback for a new command is added to the queue.
+  void AddCommandAddedCallback(const CommandCallback& callback);
+
+  // Adds notifications callback for a command is removed from the queue.
+  void AddCommandRemovedCallback(const CommandCallback& callback);
+
+  void AddCommandHandler(const std::string& command_name,
+                         const Device::CommandHandlerCallback& callback);
+
+  // Checks if the command queue is empty.
+  bool IsEmpty() const { return map_.empty(); }
+
+  // Returns the number of commands in the queue.
+  size_t GetCount() const { return map_.size(); }
+
+  // Adds a new command to the queue. Each command in the queue has a unique
+  // ID that identifies that command instance in this queue.
+  // One shouldn't attempt to add a command with the same ID.
+  void Add(std::unique_ptr<CommandInstance> instance);
+
+  // Selects command identified by |id| ready for removal. Command will actually
+  // be removed after some time.
+  void DelayedRemove(const std::string& id);
+
+  // Finds a command instance in the queue by the instance |id|. Returns
+  // nullptr if the command with the given |id| is not found. The returned
+  // pointer should not be persisted for a long period of time.
+  CommandInstance* Find(const std::string& id) const;
+
+ private:
+  friend class CommandQueueTest;
+
+  // Removes a command identified by |id| from the queue.
+  bool Remove(const std::string& id);
+
+  // Removes old commands selected with DelayedRemove.
+  void Cleanup();
+
+  // Overrides CommandQueue::Now() for tests.
+  void SetNowForTest(base::Time now);
+
+  // Returns current time.
+  base::Time Now() const;
+
+  // Overridden value to be returned from Now().
+  base::Time test_now_;
+
+  // ID-to-CommandInstance map.
+  std::map<std::string, std::shared_ptr<CommandInstance>> map_;
+
+  // Queue of commands to be removed.
+  std::queue<std::pair<base::Time, std::string>> remove_queue_;
+
+  using CallbackList = std::vector<CommandCallback>;
+  CallbackList on_command_added_;
+  CallbackList on_command_removed_;
+  std::map<std::string, Device::CommandHandlerCallback> command_callbacks_;
+  Device::CommandHandlerCallback default_command_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(CommandQueue);
+};
+
+}  // namespace weave
+
+#endif  // LIBWEAVE_SRC_COMMANDS_COMMAND_QUEUE_H_