| // Copyright 2015 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // SendTo is largely tested with ReceiveFrom, so look there for more involved |
| // tests. |
| |
| #include <utility> |
| |
| #include "starboard/common/socket.h" |
| #include "starboard/memory.h" |
| #include "starboard/nplb/socket_helpers.h" |
| #include "starboard/thread.h" |
| #include "starboard/time.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace starboard { |
| namespace nplb { |
| namespace { |
| |
| class PairSbSocketSendToTest |
| : public ::testing::TestWithParam< |
| std::pair<SbSocketAddressType, SbSocketAddressType> > { |
| public: |
| SbSocketAddressType GetServerAddressType() { return GetParam().first; } |
| SbSocketAddressType GetClientAddressType() { return GetParam().second; } |
| }; |
| |
| // Thread entry point to continuously write to a socket that is expected to |
| // be closed on another thread. |
| void* SendToServerSocketEntryPoint(void* trio_as_void_ptr) { |
| ConnectedTrio* trio = static_cast<ConnectedTrio*>(trio_as_void_ptr); |
| // The contents of this buffer are inconsequential. |
| const size_t kBufSize = 1024; |
| char* send_buf = new char[kBufSize]; |
| memset(send_buf, 0, kBufSize); |
| |
| // Continue sending to the socket until it fails to send. It's expected that |
| // SbSocketSendTo will fail when the server socket closes, but the application |
| // should not terminate. |
| SbTime start = SbTimeGetMonotonicNow(); |
| SbTime now = start; |
| SbTime kTimeout = kSbTimeSecond; |
| int result = 0; |
| while (result >= 0 && (now - start < kTimeout)) { |
| result = SbSocketSendTo(trio->server_socket, send_buf, kBufSize, NULL); |
| now = SbTimeGetMonotonicNow(); |
| } |
| |
| delete[] send_buf; |
| return NULL; |
| } |
| |
| TEST(SbSocketSendToTest, RainyDayInvalidSocket) { |
| char buf[16]; |
| int result = SbSocketSendTo(NULL, buf, sizeof(buf), NULL); |
| EXPECT_EQ(-1, result); |
| } |
| |
| TEST(SbSocketSendToTest, RainyDayUnconnectedSocket) { |
| SbSocket socket = |
| SbSocketCreate(kSbSocketAddressTypeIpv4, kSbSocketProtocolTcp); |
| ASSERT_TRUE(SbSocketIsValid(socket)); |
| |
| char buf[16]; |
| int result = SbSocketSendTo(socket, buf, sizeof(buf), NULL); |
| EXPECT_EQ(-1, result); |
| |
| EXPECT_SB_SOCKET_ERROR_IN(SbSocketGetLastError(socket), |
| kSbSocketErrorConnectionReset, |
| kSbSocketErrorFailed); |
| |
| EXPECT_TRUE(SbSocketDestroy(socket)); |
| } |
| |
| TEST_P(PairSbSocketSendToTest, RainyDaySendToClosedSocket) { |
| ConnectedTrio trio = |
| CreateAndConnect(GetServerAddressType(), GetClientAddressType(), |
| GetPortNumberForTests(), kSocketTimeout); |
| EXPECT_NE(trio.client_socket, kSbSocketInvalid); |
| EXPECT_NE(trio.server_socket, kSbSocketInvalid); |
| EXPECT_NE(trio.listen_socket, kSbSocketInvalid); |
| |
| // We don't need the listen socket, so close it. |
| EXPECT_TRUE(SbSocketDestroy(trio.listen_socket)); |
| |
| // Start a thread to write to the client socket. |
| const bool kJoinable = true; |
| SbThread send_thread = SbThreadCreate( |
| 0, kSbThreadNoPriority, kSbThreadNoAffinity, kJoinable, "SendToTest", |
| SendToServerSocketEntryPoint, static_cast<void*>(&trio)); |
| |
| // Close the client, which should cause writes to the server socket to fail. |
| EXPECT_TRUE(SbSocketDestroy(trio.client_socket)); |
| |
| // Wait for the thread to exit and check the last socket error. |
| void* thread_result; |
| EXPECT_TRUE(SbThreadJoin(send_thread, &thread_result)); |
| |
| EXPECT_SB_SOCKET_ERROR_IN(SbSocketGetLastError(trio.server_socket), |
| kSbSocketErrorConnectionReset, |
| kSbSocketErrorFailed); |
| |
| // Clean up the server socket. |
| EXPECT_TRUE(SbSocketDestroy(trio.server_socket)); |
| } |
| |
| // Tests the expectation that writing to a socket that is never drained |
| // will result in that socket becoming full and thus will return a |
| // kSbSocketPending status, which indicates that it is blocked. |
| TEST_P(PairSbSocketSendToTest, RainyDaySendToSocketUntilBlocking) { |
| static const int kChunkSize = 1024; |
| // 1GB limit for sending data. |
| static const uint64_t kMaxTransferLimit = 1024 * 1024 * 1024; |
| |
| scoped_ptr<ConnectedTrioWrapped> trio = |
| CreateAndConnectWrapped(GetServerAddressType(), GetClientAddressType(), |
| GetPortNumberForTests(), kSocketTimeout); |
| ASSERT_TRUE(trio); |
| // Push data into socket until it dies. |
| uint64_t num_bytes = 0; |
| while (num_bytes < kMaxTransferLimit) { |
| char buff[kChunkSize] = {}; |
| int result = trio->client_socket->SendTo(buff, sizeof(buff), NULL); |
| |
| if (result < 0) { |
| SbSocketError err = SbSocketGetLastError(trio->client_socket->socket()); |
| EXPECT_EQ(kSbSocketPending, err); |
| return; |
| } |
| |
| if (result == 0) { // Connection dropped unexpectedly. |
| EXPECT_TRUE(false) << "Connection unexpectedly dropped."; |
| } |
| |
| num_bytes += static_cast<uint64_t>(result); |
| } |
| EXPECT_TRUE(false) << "Max transfer rate reached."; |
| } |
| |
| // Tests the expectation that killing a connection will cause the other |
| // connected socket to fail to write. For sockets without socket connection |
| // support this will show up as a generic error. Otherwise this will show |
| // up as a connection reset error. |
| TEST_P(PairSbSocketSendToTest, RainyDaySendToSocketConnectionReset) { |
| static const int kChunkSize = 1024; |
| |
| scoped_ptr<ConnectedTrioWrapped> trio = |
| CreateAndConnectWrapped(GetServerAddressType(), GetClientAddressType(), |
| GetPortNumberForTests(), kSocketTimeout); |
| ASSERT_TRUE(trio); |
| |
| // Kills the server, the client socket will have it's connection reset during |
| // one of the subsequent writes. |
| trio->server_socket.reset(); |
| |
| // Expect that after some retries the client socket will return that the |
| // connection will reset. |
| int kNumRetries = 1000; |
| for (int i = 0; i < kNumRetries; ++i) { |
| char buff[kChunkSize] = {}; |
| SbThreadSleep(kSbTimeMillisecond); |
| int result = trio->client_socket->SendTo(buff, sizeof(buff), NULL); |
| |
| if (result < 0) { |
| SbSocketError err = SbSocketGetLastError(trio->client_socket->socket()); |
| |
| EXPECT_EQ(kSbSocketErrorConnectionReset, err) |
| << "Expected connection drop."; |
| return; |
| } |
| |
| if (result == 0) { |
| return; // Other way in which the connection was reset. |
| } |
| } |
| ASSERT_TRUE(false) << "Connection was not dropped after " << kNumRetries |
| << " tries."; |
| } |
| |
| #if SB_HAS(IPV6) |
| INSTANTIATE_TEST_CASE_P( |
| SbSocketAddressTypes, |
| PairSbSocketSendToTest, |
| ::testing::Values( |
| std::make_pair(kSbSocketAddressTypeIpv4, kSbSocketAddressTypeIpv4), |
| std::make_pair(kSbSocketAddressTypeIpv6, kSbSocketAddressTypeIpv6), |
| std::make_pair(kSbSocketAddressTypeIpv6, kSbSocketAddressTypeIpv4))); |
| #else |
| INSTANTIATE_TEST_CASE_P( |
| SbSocketAddressTypes, |
| PairSbSocketSendToTest, |
| ::testing::Values(std::make_pair(kSbSocketAddressTypeIpv4, |
| kSbSocketAddressTypeIpv4))); |
| #endif |
| } // namespace |
| } // namespace nplb |
| } // namespace starboard |