Alexander Aprelev
11399713c5
Before this fix running under tsan produces following warning:
```
00:00 +0: httpGet
00:03 +1: httpServe
00:04 +2: All tests passed!
/usr/bin/addr2line: DWARF error: mangled line number section (bad file number)
/usr/bin/addr2line: DWARF error: mangled line number section (bad file number)
/usr/bin/addr2line: DWARF error: mangled line number section (bad file number)
/usr/bin/addr2line: DWARF error: mangled line number section (bad file number)
/usr/bin/addr2line: DWARF error: mangled line number section (bad file number)
==================
WARNING: ThreadSanitizer: signal-unsafe call inside of a signal (pid=145964)
#0 malloc ../../../../../../llvm-llvm-project/../../../../../../llvm-llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:676 (dartvm+0x21c9330) (BuildId: d195bc5e9885ab144039c676e433289217750aec)
#1 __dcigettext intl/./intl/dcigettext.c:621 (libc.so.6+0x39f23) (BuildId: 4a95b54430cb5a2c68c1812f1738222660dec6d1)
#2 __tsan::CallUserSignalHandler(__tsan::ThreadState*, bool, bool, int, __sanitizer::__sanitizer_siginfo*, void*) ../../../../../../llvm-llvm-project/../../../../../../llvm-llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:2149 (dartvm+0x21d34af) (BuildId: d195bc5e9885ab144039c676e433289217750aec)
SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal intl/./intl/dcigettext.c:621 in __dcigettext
==================
ThreadSanitizer: reported 1 warnings
```
TEST=samples/ffi/http
Change-Id: I4cd1b62d30cde3ff0d4cd5f6a23c33e36491884a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/445284
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include <atomic>
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#include <chrono>
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#include <cstring>
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#include <thread>
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#if defined(_WIN32)
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#define DART_EXPORT extern "C" __declspec(dllexport)
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#else
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#define DART_EXPORT \
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extern "C" __attribute__((visibility("default"))) __attribute((used))
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#endif
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constexpr char kExampleRequest[] = R"(
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GET / HTTP/1.1
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Host: www.example.com
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)";
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constexpr char kExampleResponse[] = R"(
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HTTP/1.1 200 OK
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Content-Length: 54
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Content-Type: text/html; charset=UTF-8
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<html>
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<body>
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Hello world!
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</body>
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</html>
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)";
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DART_EXPORT void http_get(const char* uri, void (*onResponse)(const char*)) {
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std::thread([onResponse]() {
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std::this_thread::sleep_for(std::chrono::seconds(3));
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onResponse(kExampleResponse);
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}).detach();
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}
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std::atomic<bool> stop_requested = false;
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std::thread* server = nullptr;
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DART_EXPORT void http_start_serving(void (*onRequest)(const char*)) {
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server = new std::thread([onRequest]() {
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while (!stop_requested) {
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std::this_thread::sleep_for(std::chrono::seconds(1));
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onRequest(kExampleRequest);
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}
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});
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}
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DART_EXPORT void http_stop_serving() {
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if (server != nullptr) {
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stop_requested = true;
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server->join();
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delete server;
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server = nullptr;
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}
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} |