summaryrefslogtreecommitdiffstats
path: root/src/corelib/kernel/qfunctions_winrt.h
blob: ee4e050793729732331e169497ee7b17ea2c1f0c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QFUNCTIONS_WINRT_H
#define QFUNCTIONS_WINRT_H

#include <QtCore/qglobal.h>

#ifdef Q_OS_WIN

#include <QtCore/QThread>
#include <QtCore/QAbstractEventDispatcher>
#include <QtCore/qt_windows.h>

// Convenience macros for handling HRESULT values
#define RETURN_IF_FAILED(msg, ret) \
    if (FAILED(hr)) { \
        qErrnoWarning(hr, msg); \
        ret; \
    }

#define RETURN_IF_FAILED_WITH_ARGS(msg, ret, ...) \
    if (FAILED(hr)) { \
        qErrnoWarning(hr, msg, __VA_ARGS__); \
        ret; \
    }

#define RETURN_HR_IF_FAILED(msg) RETURN_IF_FAILED(msg, return hr)
#define RETURN_OK_IF_FAILED(msg) RETURN_IF_FAILED(msg, return S_OK)
#define RETURN_FALSE_IF_FAILED(msg) RETURN_IF_FAILED(msg, return false)
#define RETURN_VOID_IF_FAILED(msg) RETURN_IF_FAILED(msg, return)
#define RETURN_HR_IF_FAILED_WITH_ARGS(msg, ...) RETURN_IF_FAILED_WITH_ARGS(msg, return hr, __VA_ARGS__)
#define RETURN_OK_IF_FAILED_WITH_ARGS(msg, ...) RETURN_IF_FAILED_WITH_ARGS(msg, return S_OK, __VA_ARGS__)
#define RETURN_FALSE_IF_FAILED_WITH_ARGS(msg, ...) RETURN_IF_FAILED_WITH_ARGS(msg, return false, __VA_ARGS__)
#define RETURN_VOID_IF_FAILED_WITH_ARGS(msg, ...) RETURN_IF_FAILED_WITH_ARGS(msg, return, __VA_ARGS__)

#define Q_ASSERT_SUCCEEDED(hr) \
    Q_ASSERT_X(SUCCEEDED(hr), Q_FUNC_INFO, qPrintable(qt_error_string(hr)));

#ifdef Q_OS_WINRT

QT_BEGIN_NAMESPACE

#ifdef QT_BUILD_CORE_LIB
#endif

// Environment ------------------------------------------------------
errno_t qt_fake_getenv_s(size_t*, char*, size_t, const char*);
errno_t qt_fake__putenv_s(const char*, const char*);
void qt_winrt_tzset();
void qt_winrt__tzset();

QT_END_NAMESPACE

// As Windows Runtime lacks some standard functions used in Qt, these got
// reimplemented. Other projects do this as well. Inline functions are used
// that there is a central place to disable functions for newer versions if
// they get available. There are no defines used anymore, because this
// will break member functions of classes which are called like these
// functions.
// The other declarations available in this file are being used per
// define inside qplatformdefs.h of the corresponding WinRT mkspec.

#define generate_inline_return_func0(funcname, returntype) \
        inline returntype funcname() \
        { \
            return QT_PREPEND_NAMESPACE(qt_winrt_##funcname)(); \
        }
#define generate_inline_return_func1(funcname, returntype, param1) \
        inline returntype funcname(param1 p1) \
        { \
            return QT_PREPEND_NAMESPACE(qt_winrt_##funcname)(p1); \
        }
#define generate_inline_return_func2(funcname, returntype, prependnamespace, param1, param2) \
        inline returntype funcname(param1 p1, param2 p2) \
        { \
            return QT_PREPEND_NAMESPACE(prependnamespace##funcname)(p1,  p2); \
        }
#define generate_inline_return_func3(funcname, returntype, param1, param2, param3) \
        inline returntype funcname(param1 p1, param2 p2, param3 p3) \
        { \
            return QT_PREPEND_NAMESPACE(qt_winrt_##funcname)(p1,  p2, p3); \
        }
#define generate_inline_return_func4(funcname, returntype, prependnamespace, param1, param2, param3, param4) \
        inline returntype funcname(param1 p1, param2 p2, param3 p3, param4 p4) \
        { \
            return QT_PREPEND_NAMESPACE(prependnamespace##funcname)(p1,  p2, p3, p4); \
        }
#define generate_inline_return_func5(funcname, returntype, param1, param2, param3, param4, param5) \
        inline returntype funcname(param1 p1, param2 p2, param3 p3, param4 p4, param5 p5) \
        { \
            return QT_PREPEND_NAMESPACE(qt_winrt_##funcname)(p1,  p2, p3, p4, p5); \
        }
#define generate_inline_return_func6(funcname, returntype, param1, param2, param3, param4, param5, param6) \
        inline returntype funcname(param1 p1, param2 p2, param3 p3, param4 p4, param5 p5, param6 p6) \
        { \
            return QT_PREPEND_NAMESPACE(qt_winrt_##funcname)(p1,  p2, p3, p4, p5, p6); \
        }
#define generate_inline_return_func7(funcname, returntype, param1, param2, param3, param4, param5, param6, param7) \
        inline returntype funcname(param1 p1, param2 p2, param3 p3, param4 p4, param5 p5, param6 p6, param7 p7) \
        { \
            return QT_PREPEND_NAMESPACE(qt_winrt_##funcname)(p1,  p2, p3, p4, p5, p6, p7); \
        }

typedef unsigned (__stdcall *StartAdressExFunc)(void *);
typedef void(*StartAdressFunc)(void *);
typedef int ( __cdecl *CompareFunc ) (const void *, const void *) ;

generate_inline_return_func4(getenv_s, errno_t, qt_fake_, size_t *, char *, size_t, const char *)
generate_inline_return_func2(_putenv_s, errno_t, qt_fake_, const char *, const char *)
generate_inline_return_func0(tzset, void)
generate_inline_return_func0(_tzset, void)

namespace Microsoft {
    namespace WRL {
        template <typename T> class ComPtr;
    }
}

QT_BEGIN_NAMESPACE

namespace QWinRTFunctions {

// Synchronization methods
enum AwaitStyle
{
    YieldThread = 0,
    ProcessThreadEvents = 1,
    ProcessMainThreadEvents = 2
};

template <typename T>
static inline HRESULT _await_impl(const Microsoft::WRL::ComPtr<T> &asyncOp, AwaitStyle awaitStyle)
{
    Microsoft::WRL::ComPtr<IAsyncInfo> asyncInfo;
    HRESULT hr = asyncOp.As(&asyncInfo);
    if (FAILED(hr))
        return hr;

    AsyncStatus status;
    switch (awaitStyle) {
    case ProcessMainThreadEvents:
        while (SUCCEEDED(hr = asyncInfo->get_Status(&status)) && status == Started)
            QCoreApplication::processEvents();
        break;
    case ProcessThreadEvents:
        if (QAbstractEventDispatcher *dispatcher = QThread::currentThread()->eventDispatcher()) {
            while (SUCCEEDED(hr = asyncInfo->get_Status(&status)) && status == Started)
                dispatcher->processEvents(QEventLoop::AllEvents);
            break;
        }
        // fall through
    default:
    case YieldThread:
        while (SUCCEEDED(hr = asyncInfo->get_Status(&status)) && status == Started)
            QThread::yieldCurrentThread();
        break;
    }

    if (FAILED(hr) || status != Completed) {
        HRESULT ec;
        hr = asyncInfo->get_ErrorCode(&ec);
        if (FAILED(hr))
            return hr;
        return ec;
    }

    return hr;
}

template <typename T>
static inline HRESULT await(const Microsoft::WRL::ComPtr<T> &asyncOp, AwaitStyle awaitStyle = YieldThread)
{
    HRESULT hr = _await_impl(asyncOp, awaitStyle);
    if (FAILED(hr))
        return hr;

    return asyncOp->GetResults();
}

template <typename T, typename U>
static inline HRESULT await(const Microsoft::WRL::ComPtr<T> &asyncOp, U *results, AwaitStyle awaitStyle = YieldThread)
{
    HRESULT hr = _await_impl(asyncOp, awaitStyle);
    if (FAILED(hr))
        return hr;

    return asyncOp->GetResults(results);
}

} // QWinRTFunctions

QT_END_NAMESPACE

#endif // Q_OS_WINRT

#endif // Q_OS_WIN

#endif // QFUNCTIONS_WINRT_H