1/*
2 *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include <signal.h>
12#include <stdlib.h>
13#include <stdio.h>
14#include <string.h>
15
16#if WEBRTC_WIN
17#define WIN32_LEAN_AND_MEAN
18#include <windows.h>
19#endif  // WEBRTC_WIN
20
21#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
22#include <CoreServices/CoreServices.h>
23#endif  // WEBRTC_MAC && !defined(WEBRTC_IOS)
24
25#include <algorithm>
26#include "webrtc/base/common.h"
27#include "webrtc/base/logging.h"
28
29//////////////////////////////////////////////////////////////////////
30// Assertions
31//////////////////////////////////////////////////////////////////////
32
33namespace rtc {
34
35void Break() {
36#if WEBRTC_WIN
37  ::DebugBreak();
38#else  // !WEBRTC_WIN
39  // On POSIX systems, SIGTRAP signals debuggers to break without killing the
40  // process. If a debugger isn't attached, the uncaught SIGTRAP will crash the
41  // app.
42  raise(SIGTRAP);
43#endif
44  // If a debugger wasn't attached, we will have crashed by this point. If a
45  // debugger is attached, we'll continue from here.
46}
47
48static AssertLogger custom_assert_logger_ = NULL;
49
50void SetCustomAssertLogger(AssertLogger logger) {
51  custom_assert_logger_ = logger;
52}
53
54void LogAssert(const char* function, const char* file, int line,
55               const char* expression) {
56  if (custom_assert_logger_) {
57    custom_assert_logger_(function, file, line, expression);
58  } else {
59    LOG(LS_ERROR) << file << "(" << line << ")" << ": ASSERT FAILED: "
60                  << expression << " @ " << function;
61  }
62}
63
64bool IsOdd(int n) {
65  return (n & 0x1);
66}
67
68bool IsEven(int n) {
69  return !IsOdd(n);
70}
71
72} // namespace rtc
73