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author | rockot@chromium.org <rockot@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-01-31 20:13:23 +0000 |
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committer | rockot@chromium.org <rockot@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-01-31 20:13:23 +0000 |
commit | 125724f2dd1b339cc6dc3f3bcf2b0d565765471f (patch) | |
tree | b6b1f0d2bd292f39161de8317338edb6076fd848 /device/hid/hid_connection_win.h | |
parent | 64e3d73b60bbe5d3e7808c444ae1e1e392981a41 (diff) | |
download | chromium_src-125724f2dd1b339cc6dc3f3bcf2b0d565765471f.zip chromium_src-125724f2dd1b339cc6dc3f3bcf2b0d565765471f.tar.gz chromium_src-125724f2dd1b339cc6dc3f3bcf2b0d565765471f.tar.bz2 |
HID backend.
This is a continuation of https://codereview.chromium.org/143883005.
[ps#1 here is (post-revert) ps#12 there.]
BUG=290428
TBR=miket@chromium.org
Review URL: https://codereview.chromium.org/150773004
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@248250 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'device/hid/hid_connection_win.h')
-rw-r--r-- | device/hid/hid_connection_win.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/device/hid/hid_connection_win.h b/device/hid/hid_connection_win.h new file mode 100644 index 0000000..6cbb9e9 --- /dev/null +++ b/device/hid/hid_connection_win.h @@ -0,0 +1,96 @@ +// Copyright (c) 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. + +#ifndef DEVICE_HID_HID_CONNECTION_WIN_H_ +#define DEVICE_HID_HID_CONNECTION_WIN_H_ + +#include <set> +#include <windows.h> + +#include "base/callback.h" +#include "base/memory/ref_counted.h" +#include "base/message_loop/message_loop.h" +#include "base/threading/thread_checker.h" +#include "base/win/object_watcher.h" +#include "device/hid/hid_connection.h" +#include "device/hid/hid_device_info.h" +#include "net/base/io_buffer.h" + +namespace device { + +class HidConnectionWin : public HidConnection { + public: + struct PendingTransfer : public base::RefCounted<PendingTransfer>, + public base::win::ObjectWatcher::Delegate, + public base::MessageLoop::DestructionObserver { + public: + PendingTransfer(scoped_refptr<HidConnectionWin> conn, + scoped_refptr<net::IOBuffer> target, + scoped_refptr<net::IOBuffer> receiving, + bool is_input, + IOCallback callback); + + void TakeResultFromWindowsAPI(BOOL result); + + OVERLAPPED* GetOverlapped() { return &overlapped_; } + + // Implements base::win::ObjectWatcher::Delegate. + virtual void OnObjectSignaled(HANDLE object) OVERRIDE; + + // Implements base::MessageLoop::DestructionObserver + virtual void WillDestroyCurrentMessageLoop() OVERRIDE; + + + private: + friend class base::RefCounted<PendingTransfer>; + friend class HidConnectionWin; + + virtual ~PendingTransfer(); + + scoped_refptr<HidConnectionWin> conn_; + bool is_input_; + scoped_refptr<net::IOBuffer> target_; + scoped_refptr<net::IOBuffer> receiving_; + IOCallback callback_; + OVERLAPPED overlapped_; + base::win::ScopedHandle event_; + base::win::ObjectWatcher watcher_; + + DISALLOW_COPY_AND_ASSIGN(PendingTransfer); + }; + + HidConnectionWin(HidDeviceInfo device_info); + + virtual void Read(scoped_refptr<net::IOBuffer> buffer, + size_t size, + const IOCallback& callback) OVERRIDE; + virtual void Write(scoped_refptr<net::IOBuffer> buffer, + size_t size, + const IOCallback& callback) OVERRIDE; + virtual void GetFeatureReport(scoped_refptr<net::IOBuffer> buffer, + size_t size, + const IOCallback& callback) OVERRIDE; + virtual void SendFeatureReport(scoped_refptr<net::IOBuffer> buffer, + size_t size, + const IOCallback& callback) OVERRIDE; + + void OnTransferFinished(scoped_refptr<PendingTransfer> transfer); + void OnTransferCanceled(scoped_refptr<PendingTransfer> transfer); + + bool available() const { return available_; } + + private: + ~HidConnectionWin(); + + base::win::ScopedHandle file_; + std::set<scoped_refptr<PendingTransfer> > transfers_; + + DISALLOW_COPY_AND_ASSIGN(HidConnectionWin); + + bool available_; +}; + +} // namespace device + +#endif // DEVICE_HID_HID_CONNECTION_WIN_H_ |