| // Copyright (c) 2010 The Chromium OS 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 GOBI_CROMO_PLUGIN_DEVICE_WATCHER_H_ |
| #define GOBI_CROMO_PLUGIN_DEVICE_WATCHER_H_ |
| |
| #include <glib.h> |
| |
| #include <string> |
| |
| // Use udev to keep track of additions and removals of devices |
| struct udev; |
| struct udev_monitor; |
| struct udev_device; |
| |
| typedef void (*DeviceCallback)(void* context, |
| const char* action, |
| const char* device); |
| typedef void (*TimeoutCallback)(void*); |
| |
| class DeviceWatcher { |
| public: |
| explicit DeviceWatcher(const char* subsystem); |
| ~DeviceWatcher(); |
| |
| void StartMonitoring(); |
| void StopMonitoring(); |
| void StartPolling(int interval_secs, |
| TimeoutCallback callback, |
| void* userdata); |
| void StopPolling(); |
| void HandleUdevEvent(); |
| void HandlePollEvent(); |
| |
| void set_callback(DeviceCallback callback, void* userdata); |
| |
| private: |
| std::string subsystem_; |
| DeviceCallback device_callback_; |
| void* device_callback_arg_; |
| TimeoutCallback timeout_callback_; |
| void* timeout_callback_arg_; |
| struct udev* udev_; |
| struct udev_monitor* udev_monitor_; |
| guint udev_watch_id_; |
| guint timeout_id_; |
| }; |
| |
| #endif // GOBI_CROMO_PLUGIN_DEVICE_WATCHER_H_ |