diff options
Diffstat (limited to 'ACE/tests/SOCK_Send_Recv_Test.cpp')
| -rw-r--r-- | ACE/tests/SOCK_Send_Recv_Test.cpp | 397 |
1 files changed, 397 insertions, 0 deletions
diff --git a/ACE/tests/SOCK_Send_Recv_Test.cpp b/ACE/tests/SOCK_Send_Recv_Test.cpp new file mode 100644 index 00000000000..f971c98e65b --- /dev/null +++ b/ACE/tests/SOCK_Send_Recv_Test.cpp @@ -0,0 +1,397 @@ +// $Id$ + +// =========================================================================== +// +// = LIBRARY +// tests +// +// = FILENAME +// SOCK_Send_Recv_Test.cpp +// +// = DESCRIPTION +// This is a test of the <ACE_SOCK>'s various send and receive +// methods. The test forks two processes or spawns two threads +// (depending upon the platform) and then executes client and +// server allowing them to connect and exchange data in ways +// designed to exercise the send and recv functions. +// +// Right now, it primarily tests the iov-like send and recv +// functions, but others should be added to completely cover the +// possible scenarios. +// +// = AUTHOR +// Steve Huston <shuston@riverace.com> +// +// ============================================================================ + +#include "test_config.h" +#include "ace/OS_NS_sys_wait.h" +#include "ace/OS_NS_unistd.h" +#include "ace/Thread.h" +#include "ace/Thread_Manager.h" +#include "ace/Time_Value.h" +#include "ace/SOCK_Connector.h" +#include "ace/SOCK_Acceptor.h" +#include "ace/SOCK_Stream.h" + +ACE_RCSID(tests, SOCK_Send_Recv_Test, "$Id$") + +// Change to non-zero if test fails +static int Test_Result = 0; + +#if !defined (ACE_LACKS_FORK) || defined (ACE_HAS_THREADS) + +// In test 3, a large amount of data is sent. The purpose is to overflow the +// TCP send window, causing the sender to block (it's a send_n). This value +// is the amount to send. The assumption is that no implementation has a +// receive window larger than 128K bytes. If one is found, this is the place +// to change it. +// For some odd reason, NT will try to send a single large buffer, but not +// multiple smaller ones that add up to the large size. +const size_t Test3_Send_Size = 4*1024; +const size_t Test3_Loops = 10; +const size_t Test3_Total_Size = Test3_Send_Size * Test3_Loops; + + +static void * +client (void *arg) +{ + ACE_INET_Addr *remote_addr = reinterpret_cast<ACE_INET_Addr *> (arg); + ACE_INET_Addr server_addr (remote_addr->get_port_number (), + ACE_LOCALHOST); + ACE_SOCK_Stream cli_stream; + ACE_SOCK_Connector con; + ACE_Time_Value timeout (ACE_DEFAULT_TIMEOUT); + + ACE_DEBUG ((LM_DEBUG, + ACE_TEXT ("(%P|%t) Connecting to port %d\n"), + server_addr.get_port_number())); + + // Initiate connection with server; don't wait forever + if (con.connect (cli_stream, + server_addr, + &timeout) == -1) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) %p\n"), + ACE_TEXT ("connection failed"))); + Test_Result = 1; + return 0; + } + + ACE_DEBUG ((LM_DEBUG, + ACE_TEXT ("(%P|%t) connected to %s\n"), + ACE_TEXT_CHAR_TO_TCHAR(server_addr.get_host_name ()))); + + //******************* TEST 1 ****************************** + // + // Do a iovec sendv - send the 255 byte buffer in 5 chunks. The + // server will verify that the correct data is sent, and that there + // is no more and no less. + + u_char buffer[255]; + size_t i; + ssize_t len; + + // The server will verify that this data pattern gets there intact. + + for (i = 0; i < sizeof buffer; ++i) + buffer[i] = static_cast<u_char> (i); + + iovec iov[5]; + + iov[0].iov_base = reinterpret_cast<char *> (&buffer[0]); + iov[0].iov_len = 50; + + iov[1].iov_base = reinterpret_cast<char *> (&buffer[50]); + iov[1].iov_len = 25; + + iov[2].iov_base = reinterpret_cast<char *> (&buffer[75]); + iov[2].iov_len = 150; + + iov[3].iov_base = reinterpret_cast<char *> (&buffer[225]); + iov[3].iov_len = 29; + + iov[4].iov_base = reinterpret_cast<char *> (&buffer[254]); + iov[4].iov_len = 1; + + len = cli_stream.sendv (iov, 5); + if (len == -1) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) %p\n"), + ACE_TEXT ("Test 1, sendv failed"))); + Test_Result = 1; + } + else + ACE_ASSERT (len == 255); + + //******************* TEST 2 ****************************** + // + // The same data is coming back - receive it using recv (size_t n, + // ...) and compare it to the original data. + + u_char buffer2[255]; + // Give it a chance to get here + ACE_OS::sleep (2); + len = cli_stream.recv (4, + buffer2, + 150, + &buffer2[150], + 105); + if (len != 255) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) %p; len is %d, but should be 255!\n"), + len)); + } + ACE_ASSERT (len == 255); + + for (i = 0; i < 255; i++) + if (buffer2[i] != buffer[i]) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) Test 2, rcvd byte %d is %d, not %d\n"), + i, buffer2[i], buffer[i])); + Test_Result = 1; + } + + //******************* TEST 3 ****************************** + // + // Do a send_n of a large size. The receive should sleep some to + // cause the data reception to be delayed, which will fill up the + // TCP window and cause send_n to block at some point. The particular + // case this tests only needs to be exercised if the socket is + // non-blocking, so set that first. + + ssize_t sent; + char buff[Test3_Send_Size]; + ACE_ASSERT (cli_stream.enable (ACE_NONBLOCK) != -1); + for (i = 0; i < Test3_Loops; ++i) + { + errno = 0; + sent = cli_stream.send_n (buff, sizeof (buff)); + if (sent != sizeof (buff) && errno != 0) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) Test 3, pass %d, sent %d, %p\n"), + i, sent, ACE_TEXT ("error"))); + Test_Result = 1; // Fail + } + } + + cli_stream.close (); + + return 0; +} + +static void * +server (void *arg) +{ + ACE_SOCK_Acceptor *peer_acceptor = (ACE_SOCK_Acceptor *) arg; + ACE_SOCK_Stream sock_str; + ACE_INET_Addr cli_addr; + ACE_Time_Value timeout (ACE_DEFAULT_TIMEOUT); + + // Accept the connection over which the stream tests will run. + // Don't lock up if client doesn't connect + if (peer_acceptor->accept (sock_str, + &cli_addr, + &timeout) == -1) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) %p\n"), + ACE_TEXT ("accept"))); + Test_Result = 1; + return 0; + } + + ACE_DEBUG ((LM_DEBUG, + ACE_TEXT ("(%P|%t) client %s connected from %d\n"), + ACE_TEXT_CHAR_TO_TCHAR(cli_addr.get_host_name ()), + cli_addr.get_port_number ())); + + //******************* TEST 1 ****************************** + // + // Do a iovec recvv - the client should send 255 bytes, which we + // will be detected and read into a ACE-allocated buffer. Use a 5 + // second timeout to give the client a chance to send it all. + + ACE_OS::sleep (5); + + iovec iov[3]; + u_char buffer[255]; + ssize_t len; + int i; + + iov[0].iov_base = reinterpret_cast<char *> (&buffer[0]); + iov[0].iov_len = 75; + + iov[1].iov_base = reinterpret_cast<char *> (&buffer[75]); + iov[1].iov_len = 100; + + iov[2].iov_base = reinterpret_cast<char *> (&buffer[175]); + iov[2].iov_len = 80; + + len = sock_str.recvv_n (iov, 3); + if (len == -1) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) %p\n"), + ACE_TEXT ("Test 1, recvv failed"))); + Test_Result = 1; + } + + ACE_ASSERT (len == 255); + for (i = 0; i < 255; i++) + if (buffer[i] != i) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) Test 1, rcvd byte %d is %d, not %d\n"), + i, + buffer[i], + i)); + Test_Result = 1; + } + + //******************* TEST 2 ****************************** + // + // Send the buffer back, using send (size_t n, ...) in 3 pieces. + + len = sock_str.send (6, + buffer, + 42, + &buffer[42], + 189, + &buffer[231], + 24); + ACE_ASSERT (len == 255); + + //******************* TEST 3 ****************************** + // + // The sender is testing send_n to make sure it blocks if the TCP + // window fills. So sleep here for a bit to avoid getting the data + // yet. Then just read and empty out the received data. + ACE_OS::sleep (8); + // Keep reading until the peer closes. + sock_str.disable (ACE_NONBLOCK); + ssize_t got = 1; + size_t total_recv = 0; + while (got != 0) + { + errno = 0; + got = sock_str.recv (buffer, sizeof (buffer)); + if (got < 0) + break; + total_recv += got; + } + + ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%P|%t) Test 3 received %d bytes\n"), + total_recv)); + + if (total_recv == Test3_Total_Size) + { + if (got != 0 || errno != 0) + { + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) Test 3 final recv status %d, expected 0\n"), + got)); + ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%P|%t) %p\n"), + ACE_TEXT ("expected errno == 0, instead"))); + Test_Result = 1; // Fail + } + } + else + { + ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%P|%t) Test 3 expected %d %p\n"), + Test3_Total_Size, ACE_TEXT ("bytes"))); + Test_Result = 1; + } + + sock_str.close(); + + return 0; +} + +#endif /* !ACE_LACKS_FORK || ACE_HAS_THREADS */ + +static void +spawn (void) +{ + // Acceptor + ACE_SOCK_Acceptor peer_acceptor; + + // Create a server address. + ACE_INET_Addr server_addr; + + // Bind listener to any port and then find out what the port was. + if (peer_acceptor.open (ACE_Addr::sap_any) == -1 + || peer_acceptor.get_local_addr (server_addr) == -1) + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) %p\n"), + ACE_TEXT ("open"))); + else + { + ACE_DEBUG ((LM_DEBUG, + ACE_TEXT ("(%P|%t) starting server at port %d\n"), + server_addr.get_port_number ())); + +#if !defined (ACE_LACKS_FORK) + switch (ACE_OS::fork (ACE_TEXT ("child"))) + { + case -1: + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) %p\n%a"), + ACE_TEXT ("fork failed"), + 1)); + /* NOTREACHED */ + case 0: + client (&server_addr); + ACE_OS::exit (0); + /* NOTREACHED */ + default: + server (reinterpret_cast<void *> (&peer_acceptor)); + ACE_OS::wait (); + } +#elif defined (ACE_HAS_THREADS) + if (ACE_Thread_Manager::instance ()->spawn + (ACE_THR_FUNC (server), + reinterpret_cast<void *> (&peer_acceptor), + THR_NEW_LWP | THR_DETACHED) == -1) + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) %p\n%a"), + ACE_TEXT ("thread create failed"), + 1)); + + if (ACE_Thread_Manager::instance ()->spawn + (ACE_THR_FUNC (client), + reinterpret_cast<void *> (&server_addr), + THR_NEW_LWP | THR_DETACHED) == -1) + ACE_ERROR ((LM_ERROR, + ACE_TEXT ("(%P|%t) %p\n%a"), + ACE_TEXT ("thread create failed"), + 1)); + + // Wait for the threads to exit. + ACE_Thread_Manager::instance ()->wait (); +#else + ACE_ERROR ((LM_INFO, + ACE_TEXT ("(%P|%t) ") + ACE_TEXT ("only one thread may be run ") + ACE_TEXT ("in a process on this platform\n"))); +#endif /* ACE_HAS_THREADS */ + + peer_acceptor.close (); + } +} + +int +run_main (int, ACE_TCHAR *[]) +{ + ACE_START_TEST (ACE_TEXT ("SOCK_Send_Recv_Test")); + + spawn (); + + ACE_END_TEST; + return Test_Result; +} |