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 {
96 explicit ReadCallback(size_t _maxBufferSz = 4096)
97 : state(STATE_WAITING)
98 , exception(AsyncSocketException::UNKNOWN, "none")
100 , maxBufferSz(_maxBufferSz) {}
103 for (std::vector<Buffer>::iterator it = buffers.begin();
108 currentBuffer.free();
111 void getReadBuffer(void** bufReturn, size_t* lenReturn) override {
112 if (!currentBuffer.buffer) {
113 currentBuffer.allocate(maxBufferSz);
115 *bufReturn = currentBuffer.buffer;
116 *lenReturn = currentBuffer.length;
119 void readDataAvailable(size_t len) noexcept override {
120 currentBuffer.length = len;
121 buffers.push_back(currentBuffer);
122 currentBuffer.reset();
123 if (dataAvailableCallback) {
124 dataAvailableCallback();
128 void readEOF() noexcept override {
129 state = STATE_SUCCEEDED;
132 void readErr(const AsyncSocketException& ex) noexcept override {
133 state = STATE_FAILED;
137 void verifyData(const char* expected, size_t expectedLen) const {
139 for (size_t idx = 0; idx < buffers.size(); ++idx) {
140 const auto& buf = buffers[idx];
141 size_t cmpLen = std::min(buf.length, expectedLen - offset);
142 CHECK_EQ(memcmp(buf.buffer, expected + offset, cmpLen), 0);
143 CHECK_EQ(cmpLen, buf.length);
146 CHECK_EQ(offset, expectedLen);
149 size_t dataRead() const {
151 for (const auto& buf : buffers) {
159 Buffer() : buffer(nullptr), length(0) {}
160 Buffer(char* buf, size_t len) : buffer(buf), length(len) {}
166 void allocate(size_t length) {
167 assert(buffer == nullptr);
168 this->buffer = static_cast<char*>(malloc(length));
169 this->length = length;
181 AsyncSocketException exception;
182 std::vector<Buffer> buffers;
183 Buffer currentBuffer;
184 VoidCallback dataAvailableCallback;
185 const size_t maxBufferSz;
193 // Create a TestServer.
194 // This immediately starts listening on an ephemeral port.
197 fd_ = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
199 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
200 "failed to create test server socket", errno);
202 if (fcntl(fd_, F_SETFL, O_NONBLOCK) != 0) {
203 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
204 "failed to put test server socket in "
205 "non-blocking mode", errno);
207 if (listen(fd_, 10) != 0) {
208 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
209 "failed to listen on test server socket",
213 address_.setFromLocalAddress(fd_);
214 // The local address will contain 0.0.0.0.
215 // Change it to 127.0.0.1, so it can be used to connect to the server
216 address_.setFromIpPort("127.0.0.1", address_.getPort());
219 // Get the address for connecting to the server
220 const folly::SocketAddress& getAddress() const {
224 int acceptFD(int timeout=50) {
228 int ret = poll(&pfd, 1, timeout);
230 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
231 "test server accept() timed out");
232 } else if (ret < 0) {
233 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
234 "test server accept() poll failed", errno);
237 int acceptedFd = ::accept(fd_, nullptr, nullptr);
238 if (acceptedFd < 0) {
239 throw AsyncSocketException(AsyncSocketException::INTERNAL_ERROR,
240 "test server accept() failed", errno);
246 std::shared_ptr<BlockingSocket> accept(int timeout=50) {
247 int fd = acceptFD(timeout);
248 return std::shared_ptr<BlockingSocket>(new BlockingSocket(fd));
251 std::shared_ptr<AsyncSocket> acceptAsync(EventBase* evb, int timeout=50) {
252 int fd = acceptFD(timeout);
253 return AsyncSocket::newSocket(evb, fd);
257 * Accept a connection, read data from it, and verify that it matches the
258 * data in the specified buffer.
260 void verifyConnection(const char* buf, size_t len) {
261 // accept a connection
262 std::shared_ptr<BlockingSocket> acceptedSocket = accept();
263 // read the data and compare it to the specified buffer
264 boost::scoped_array<uint8_t> readbuf(new uint8_t[len]);
265 acceptedSocket->readAll(readbuf.get(), len);
266 CHECK_EQ(memcmp(buf, readbuf.get(), len), 0);
267 // make sure we get EOF next
268 uint32_t bytesRead = acceptedSocket->read(readbuf.get(), len);
269 CHECK_EQ(bytesRead, 0);
274 folly::SocketAddress address_;