1 ///////////////////////////////////////////////////////////////////////////
2 //
3 // Copyright (c) 2005, Industrial Light & Magic, a division of Lucas
4 // Digital Ltd. LLC
5 //
6 // All rights reserved.
7 //
8 // Redistribution and use in source and binary forms, with or without
9 // modification, are permitted provided that the following conditions are
10 // met:
11 // * Redistributions of source code must retain the above copyright
12 // notice, this list of conditions and the following disclaimer.
13 // * Redistributions in binary form must reproduce the above
14 // copyright notice, this list of conditions and the following disclaimer
15 // in the documentation and/or other materials provided with the
16 // distribution.
17 // * Neither the name of Industrial Light & Magic nor the names of
18 // its contributors may be used to endorse or promote products derived
19 // from this software without specific prior written permission.
20 //
21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 //
33 ///////////////////////////////////////////////////////////////////////////
34
35 //-----------------------------------------------------------------------------
36 //
37 // class Thread -- implementation for
38 // platforms that support Posix threads
39 //
40 //-----------------------------------------------------------------------------
41
42 #include "IlmBaseConfig.h"
43
44 #if HAVE_PTHREAD
45
46 #include "IlmThread.h"
47 #include "Iex.h"
48 #include <assert.h>
49
50 extern "C"
51 {
52 typedef void * (* Start) (void *);
53 }
54
55 namespace IlmThread {
56
57
58 bool
supportsThreads()59 supportsThreads ()
60 {
61 return true;
62 }
63
64 namespace {
65
66 void
threadLoop(void * t)67 threadLoop (void * t)
68 {
69 return (reinterpret_cast<Thread*>(t))->run();
70 }
71
72 } // namespace
73
74
Thread()75 Thread::Thread ()
76 {
77 // empty
78 }
79
80
~Thread()81 Thread::~Thread ()
82 {
83 int error = ::pthread_join (_thread, 0);
84 assert (error == 0);
85 }
86
87
88 void
start()89 Thread::start ()
90 {
91 if (int error = ::pthread_create (&_thread, 0, Start (threadLoop), this))
92 Iex::throwErrnoExc ("Cannot create new thread (%T).", error);
93 }
94
95
96 } // namespace IlmThread
97
98 #endif
99