1/*
2 * Copyright 2011 Google Inc. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17// Simple platform thread implementation used to test our cross-platform locks.
18// This is a trimmed down version of Chromium base/threading/platform_thread.h.
19
20#ifndef SFNTLY_CPP_SRC_TEST_PLATFORM_THREAD_H_
21#define SFNTLY_CPP_SRC_TEST_PLATFORM_THREAD_H_
22
23#if defined (WIN32)
24#include <windows.h>
25#else  // Assume pthread
26#include <errno.h>
27#include <pthread.h>
28#include <time.h>
29#endif // if defined (WIN32)
30
31#include "sfntly/port/type.h"
32
33namespace sfntly {
34
35#if defined (WIN32)
36typedef HANDLE PlatformThreadHandle;
37const PlatformThreadHandle kNullThreadHandle = NULL;
38#else  // Assume pthread
39typedef pthread_t PlatformThreadHandle;
40const PlatformThreadHandle kNullThreadHandle = 0;
41#endif
42
43class PlatformThread {
44 public:
45  class Delegate {
46   public:
47     virtual ~Delegate() {}
48     virtual void ThreadMain() = 0;
49  };
50
51  // Sleeps for the specified duration (units are milliseconds).
52  static void Sleep(int32_t duration_ms);
53
54  // Creates a new thread using default stack size.  Upon success,
55  // |*thread_handle| will be assigned a handle to the newly created thread,
56  // and |delegate|'s ThreadMain method will be executed on the newly created
57  // thread.
58  // NOTE: When you are done with the thread handle, you must call Join to
59  // release system resources associated with the thread.  You must ensure that
60  // the Delegate object outlives the thread.
61  static bool Create(Delegate* delegate, PlatformThreadHandle* thread_handle);
62
63  // Joins with a thread created via the Create function.  This function blocks
64  // the caller until the designated thread exits.  This will invalidate
65  // |thread_handle|.
66  static void Join(PlatformThreadHandle thread_handle);
67
68private:
69  PlatformThread() {}
70  NO_COPY_AND_ASSIGN(PlatformThread);
71};
72
73}  // namespace sfntly
74
75#endif  // SFNTLY_CPP_SRC_TEST_PLATFORM_THREAD_H_
76