/src/FreeImage/Source/OpenEXR/IlmThread/IlmThreadWin32.cpp

 1///////////////////////////////////////////////////////////////////////////
 2//
 3// Copyright (c) 2005, Industrial Light & Magic, a division of Lucas
 4// Digital Ltd. LLC
 5// 
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33///////////////////////////////////////////////////////////////////////////
34
35//-----------------------------------------------------------------------------
36//
37//	class Thread -- implementation for Windows
38//
39//-----------------------------------------------------------------------------
40
41
42#include "IlmThread.h"
43#include "Iex.h"
44#include <iostream>
45#include <assert.h>
46
47namespace IlmThread {
48
49
50bool
51supportsThreads ()
52{
53    return true;
54}
55
56namespace {
57
58unsigned __stdcall
59threadLoop (void * t)
60{
61    reinterpret_cast<Thread*>(t)->run();
62    _endthreadex (0);
63    return 0;
64}
65
66} // namespace
67
68
69Thread::Thread ()
70{
71    // empty
72}
73
74
75Thread::~Thread ()
76{
77    DWORD status = ::WaitForSingleObject (_thread, INFINITE);
78    assert (status ==  WAIT_OBJECT_0);
79    bool ok = ::CloseHandle (_thread) != FALSE;
80    assert (ok);
81}
82
83
84void
85Thread::start ()
86{
87    unsigned id;
88    _thread = (HANDLE)::_beginthreadex (0, 0, &threadLoop, this, 0, &id);
89
90    if (_thread == 0)
91	Iex::throwErrnoExc ("Cannot create new thread (%T).");
92}
93
94
95} // namespace IlmThread