2 * Copyright 2015 Facebook, Inc.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 #include <folly/io/async/AsyncSocket.h>
19 #include <folly/io/async/test/BlockingSocket.h>
21 #include <boost/scoped_array.hpp>
24 // This is a test-only header
26 using namespace folly;
34 typedef std::function<void()> VoidCallback;
36 class ConnCallback : public AsyncSocket::ConnectCallback {
39 : state(STATE_WAITING)
40 , exception(AsyncSocketException::UNKNOWN, "none") {}
42 void connectSuccess() noexcept override {
43 state = STATE_SUCCEEDED;
44 if (successCallback) {
49 void connectErr(const AsyncSocketException& ex) noexcept override {
58 AsyncSocketException exception;
59 VoidCallback successCallback;
60 VoidCallback errorCallback;
63 class WriteCallback : public AsyncTransportWrapper::WriteCallback {
66 : state(STATE_WAITING)
68 , exception(AsyncSocketException::UNKNOWN, "none") {}
70 void writeSuccess() noexcept override {
71 state = STATE_SUCCEEDED;
72 if (successCallback) {
77 void writeErr(size_t bytesWritten,
78 const AsyncSocketException& ex) noexcept override {
80 this->bytesWritten = bytesWritten;
89 AsyncSocketException exception;
90 VoidCallback successCallback;
91 VoidCallback errorCallback;
94 class ReadCallback : public AsyncTransportWrapper::ReadCallback {
97 : state(STATE_WAITING)
98 , exception(AsyncSocketException::UNKNOWN, "none")
102 for (std::vector<Buffer>::iterator it = buffers.begin();
107 currentBuffer.free();
110 void getReadBuffer(void** bufReturn, size_t* lenReturn) override {
111 if (!currentBuffer.buffer) {
112 currentBuffer.allocate(4096);
114 *bufReturn = currentBuffer.buffer;
115 *lenReturn = currentBuffer.length;
118 void readDataAvailable(size_t len) noexcept override {
119 currentBuffer.length = len;
120 buffers.push_back(currentBuffer);
121 currentBuffer.reset();
122 if (dataAvailableCallback) {
123 dataAvailableCallback();
127 void readEOF() noexcept override {
128 state = STATE_SUCCEEDED;
131 void readErr(const AsyncSocketException& ex) noexcept override {
132 state = STATE_FAILED;
136 void verifyData(const char* expected, size_t expectedLen) const {
138 for (size_t idx = 0; idx < buffers.size(); ++idx) {
139 const auto& buf = buffers[idx];
140 size_t cmpLen = std::min(buf.length, expectedLen - offset);
141 CHECK_EQ(memcmp(buf.buffer, expected + offset, cmpLen), 0);
142 CHECK_EQ(cmpLen, buf.length);
145 CHECK_EQ(offset, expectedLen);
150 Buffer() : buffer(nullptr), length(0) {}
151 Buffer(char* buf, size_t len) : buffer(buf), length(len) {}
157 void allocate(size_t length) {
158 assert(buffer == nullptr);
159 this->buffer = static_cast<char*>(malloc(length));
160 this->length = length;
172 AsyncSocketException exception;
173 std::vector<Buffer> buffers;
174 Buffer currentBuffer;
175 VoidCallback dataAvailableCallback;
183 // Create a TestServer.
184 // This immediately starts listening on an ephemeral port.
187 fd_ = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
189 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
190 "failed to create test server socket", errno);
192 if (fcntl(fd_, F_SETFL, O_NONBLOCK) != 0) {
193 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
194 "failed to put test server socket in "
195 "non-blocking mode", errno);
197 if (listen(fd_, 10) != 0) {
198 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
199 "failed to listen on test server socket",
203 address_.setFromLocalAddress(fd_);
204 // The local address will contain 0.0.0.0.
205 // Change it to 127.0.0.1, so it can be used to connect to the server
206 address_.setFromIpPort("127.0.0.1", address_.getPort());
209 // Get the address for connecting to the server
210 const folly::SocketAddress& getAddress() const {
214 int acceptFD(int timeout=50) {
218 int ret = poll(&pfd, 1, timeout);
220 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
221 "test server accept() timed out");
222 } else if (ret < 0) {
223 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
224 "test server accept() poll failed", errno);
227 int acceptedFd = ::accept(fd_, nullptr, nullptr);
228 if (acceptedFd < 0) {
229 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
230 "test server accept() failed", errno);
236 std::shared_ptr<BlockingSocket> accept(int timeout=50) {
237 int fd = acceptFD(timeout);
238 return std::shared_ptr<BlockingSocket>(new BlockingSocket(fd));
241 std::shared_ptr<AsyncSocket> acceptAsync(EventBase* evb, int timeout=50) {
242 int fd = acceptFD(timeout);
243 return AsyncSocket::newSocket(evb, fd);
247 * Accept a connection, read data from it, and verify that it matches the
248 * data in the specified buffer.
250 void verifyConnection(const char* buf, size_t len) {
251 // accept a connection
252 std::shared_ptr<BlockingSocket> acceptedSocket = accept();
253 // read the data and compare it to the specified buffer
254 boost::scoped_array<uint8_t> readbuf(new uint8_t[len]);
255 acceptedSocket->readAll(readbuf.get(), len);
256 CHECK_EQ(memcmp(buf, readbuf.get(), len), 0);
257 // make sure we get EOF next
258 uint32_t bytesRead = acceptedSocket->read(readbuf.get(), len);
259 CHECK_EQ(bytesRead, 0);
264 folly::SocketAddress address_;