1/*M///////////////////////////////////////////////////////////////////////////////////////
2//
3//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
4//
5//  By downloading, copying, installing or using the software you agree to this license.
6//  If you do not agree to this license, do not download, install,
7//  copy or use the software.
8//
9//
10//                          License Agreement
11//                For Open Source Computer Vision Library
12//
13// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
14// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
15// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
16// Third party copyrights are property of their respective owners.
17//
18// Redistribution and use in source and binary forms, with or without modification,
19// are permitted provided that the following conditions are met:
20//
21//   * Redistribution's of source code must retain the above copyright notice,
22//     this list of conditions and the following disclaimer.
23//
24//   * Redistribution's in binary form must reproduce the above copyright notice,
25//     this list of conditions and the following disclaimer in the documentation
26//     and/or other materials provided with the distribution.
27//
28//   * The name of the copyright holders may not be used to endorse or promote products
29//     derived from this software without specific prior written permission.
30//
31// This software is provided by the copyright holders and contributors "as is" and
32// any express or implied warranties, including, but not limited to, the implied
33// warranties of merchantability and fitness for a particular purpose are disclaimed.
34// In no event shall the Intel Corporation or contributors be liable for any direct,
35// indirect, incidental, special, exemplary, or consequential damages
36// (including, but not limited to, procurement of substitute goods or services;
37// loss of use, data, or profits; or business interruption) however caused
38// and on any theory of liability, whether in contract, strict liability,
39// or tort (including negligence or otherwise) arising in any way out of
40// the use of this software, even if advised of the possibility of such damage.
41//
42//M*/
43
44#include "precomp.hpp"
45
46#ifdef HAVE_NVCUVID
47
48using namespace cv::cudacodec::detail;
49
50#ifdef WIN32
51
52namespace
53{
54    struct UserData
55    {
56        Thread::Func func;
57        void* param;
58    };
59
60    DWORD WINAPI WinThreadFunction(LPVOID lpParam)
61    {
62        UserData* userData = static_cast<UserData*>(lpParam);
63
64        userData->func(userData->param);
65
66        return 0;
67    }
68}
69
70class cv::cudacodec::detail::Thread::Impl
71{
72public:
73    Impl(Thread::Func func, void* userData)
74    {
75        userData_.func = func;
76        userData_.param = userData;
77
78        thread_ = CreateThread(
79            NULL,                   // default security attributes
80            0,                      // use default stack size
81            WinThreadFunction,      // thread function name
82            &userData_,             // argument to thread function
83            0,                      // use default creation flags
84            &threadId_);            // returns the thread identifier
85    }
86
87    ~Impl()
88    {
89        CloseHandle(thread_);
90    }
91
92    void wait()
93    {
94        WaitForSingleObject(thread_, INFINITE);
95    }
96
97private:
98    UserData userData_;
99    HANDLE thread_;
100    DWORD threadId_;
101};
102
103#else
104
105namespace
106{
107    struct UserData
108    {
109        Thread::Func func;
110        void* param;
111    };
112
113    void* PThreadFunction(void* lpParam)
114    {
115        UserData* userData = static_cast<UserData*>(lpParam);
116
117        userData->func(userData->param);
118
119        return 0;
120    }
121}
122
123class cv::cudacodec::detail::Thread::Impl
124{
125public:
126    Impl(Thread::Func func, void* userData)
127    {
128        userData_.func = func;
129        userData_.param = userData;
130
131        pthread_create(&thread_, NULL, PThreadFunction, &userData_);
132    }
133
134    ~Impl()
135    {
136        pthread_detach(thread_);
137    }
138
139    void wait()
140    {
141        pthread_join(thread_, NULL);
142    }
143
144private:
145    pthread_t thread_;
146    UserData userData_;
147};
148
149#endif
150
151cv::cudacodec::detail::Thread::Thread(Func func, void* userData) :
152    impl_(new Impl(func, userData))
153{
154}
155
156void cv::cudacodec::detail::Thread::wait()
157{
158    impl_->wait();
159}
160
161void cv::cudacodec::detail::Thread::sleep(int ms)
162{
163#ifdef WIN32
164    ::Sleep(ms);
165#else
166    ::usleep(ms * 1000);
167#endif
168}
169
170#endif // HAVE_NVCUVID
171