1/*
2 * Copyright 2013-present Facebook, Inc.
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#include <folly/lang/SafeAssert.h>
18
19#include <folly/Conv.h>
20#include <folly/FileUtil.h>
21
22namespace folly {
23namespace detail {
24
25namespace {
26void writeStderr(const char* s, size_t len) {
27 writeFull(STDERR_FILENO, s, len);
28}
29void writeStderr(const char* s) {
30 writeStderr(s, strlen(s));
31}
32} // namespace
33
34void assertionFailure(
35 const char* expr,
36 const char* msg,
37 const char* file,
38 unsigned int line,
39 const char* function) {
40 writeStderr("\n\nAssertion failure: ");
41 writeStderr(expr + 1, strlen(expr) - 2);
42 writeStderr("\nMessage: ");
43 writeStderr(msg);
44 writeStderr("\nFile: ");
45 writeStderr(file);
46 writeStderr("\nLine: ");
47 char buf[20];
48 uint32_t n = uint64ToBufferUnsafe(line, buf);
49 writeFull(STDERR_FILENO, buf, n);
50 writeStderr("\nFunction: ");
51 writeStderr(function);
52 writeStderr("\n");
53 fsyncNoInt(STDERR_FILENO);
54 abort();
55}
56
57} // namespace detail
58} // namespace folly
59