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-rw-r--r--trunk/ACE/ace/Pipe.cpp344
1 files changed, 344 insertions, 0 deletions
diff --git a/trunk/ACE/ace/Pipe.cpp b/trunk/ACE/ace/Pipe.cpp
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index 00000000000..3d91ce9ecce
--- /dev/null
+++ b/trunk/ACE/ace/Pipe.cpp
@@ -0,0 +1,344 @@
+// $Id$
+
+#include "ace/Pipe.h"
+#include "ace/SOCK_Acceptor.h"
+#include "ace/SOCK_Connector.h"
+#include "ace/Log_Msg.h"
+#include "ace/OS_NS_sys_socket.h"
+#include "ace/OS_Memory.h"
+
+#if defined (ACE_HAS_STREAM_PIPES) || defined (__QNX__)
+# include "ace/OS_NS_unistd.h"
+#endif // ACE_HAS_STREAM_PIPES || __QNX__
+
+#include "ace/os_include/netinet/os_tcp.h"
+
+#if !defined (__ACE_INLINE__)
+#include "ace/Pipe.inl"
+#endif /* __ACE_INLINE__ */
+
+ACE_RCSID(ace, Pipe, "$Id$")
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+void
+ACE_Pipe::dump (void) const
+{
+#if defined (ACE_HAS_DUMP)
+ ACE_TRACE ("ACE_Pipe::dump");
+ ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
+ ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("handles_[0] = %d"), this->handles_[0]));
+ ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("\nhandles_[1] = %d"), this->handles_[1]));
+ ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("\n")));
+ ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
+#endif /* ACE_HAS_DUMP */
+}
+
+int
+ACE_Pipe::open (int buffer_size)
+{
+ ACE_TRACE ("ACE_Pipe::open");
+
+#if defined (ACE_LACKS_SOCKETPAIR) || defined (__Lynx__)
+ ACE_INET_Addr my_addr;
+ ACE_SOCK_Acceptor acceptor;
+ ACE_SOCK_Connector connector;
+ ACE_SOCK_Stream reader;
+ ACE_SOCK_Stream writer;
+ int result = 0;
+# if defined (ACE_WIN32)
+ ACE_INET_Addr local_any (static_cast<u_short> (0), ACE_LOCALHOST);
+# else
+ ACE_Addr local_any = ACE_Addr::sap_any;
+# endif /* ACE_WIN32 */
+
+ // Bind listener to any port and then find out what the port was.
+ if (acceptor.open (local_any) == -1
+ || acceptor.get_local_addr (my_addr) == -1)
+ result = -1;
+ else
+ {
+ ACE_INET_Addr sv_addr (my_addr.get_port_number (),
+ ACE_LOCALHOST);
+
+ // Establish a connection within the same process.
+ if (connector.connect (writer, sv_addr) == -1)
+ result = -1;
+ else if (acceptor.accept (reader) == -1)
+ {
+ writer.close ();
+ result = -1;
+ }
+ }
+
+ // Close down the acceptor endpoint since we don't need it anymore.
+ acceptor.close ();
+ if (result == -1)
+ return -1;
+
+ this->handles_[0] = reader.get_handle ();
+ this->handles_[1] = writer.get_handle ();
+
+# if !defined (ACE_LACKS_TCP_NODELAY)
+ int one = 1;
+
+ // Make sure that the TCP stack doesn't try to buffer small writes.
+ // Since this communication is purely local to the host it doesn't
+ // affect network performance.
+
+ if (writer.set_option (ACE_IPPROTO_TCP,
+ TCP_NODELAY,
+ &one,
+ sizeof one) == -1)
+ {
+ this->close ();
+ return -1;
+ }
+# endif /* ! ACE_LACKS_TCP_NODELAY */
+
+# if defined (ACE_LACKS_SOCKET_BUFSIZ)
+ ACE_UNUSED_ARG (buffer_size);
+# else /* ! ACE_LACKS_SOCKET_BUFSIZ */
+ if (reader.set_option (SOL_SOCKET,
+ SO_RCVBUF,
+ reinterpret_cast <void *> (&buffer_size),
+ sizeof (buffer_size)) == -1
+ && errno != ENOTSUP)
+ {
+ this->close ();
+ return -1;
+ }
+ else if (writer.set_option (SOL_SOCKET,
+ SO_SNDBUF,
+ reinterpret_cast <void *> (&buffer_size),
+ sizeof (buffer_size)) == -1
+ && errno != ENOTSUP)
+ {
+ this->close ();
+ return -1;
+ }
+# endif /* ! ACE_LACKS_SOCKET_BUFSIZ */
+
+#elif defined (ACE_HAS_STREAM_PIPES) || defined (__QNX__)
+ ACE_UNUSED_ARG (buffer_size);
+ if (ACE_OS::pipe (this->handles_) == -1)
+ ACE_ERROR_RETURN ((LM_ERROR,
+ ACE_LIB_TEXT ("%p\n"),
+ ACE_LIB_TEXT ("pipe")),
+ -1);
+
+#if !defined(__QNX__)
+ int arg = RMSGN;
+
+ // Enable "msg no discard" mode, which ensures that record
+ // boundaries are maintained when messages are sent and received.
+ if (ACE_OS::ioctl (this->handles_[0],
+ I_SRDOPT,
+ (void *) arg) == -1
+ || ACE_OS::ioctl (this->handles_[1],
+ I_SRDOPT,
+ (void *) arg) == -1)
+ {
+ this->close ();
+ ACE_ERROR_RETURN ((LM_ERROR,
+ ACE_LIB_TEXT ("%p\n"),
+ ACE_LIB_TEXT ("ioctl")), -1);
+ }
+#endif /* __QNX__ */
+
+#else /* ! ACE_LACKS_SOCKETPAIR && ! ACE_HAS_STREAM_PIPES */
+ if (ACE_OS::socketpair (AF_UNIX,
+ SOCK_STREAM,
+ 0,
+ this->handles_) == -1)
+ ACE_ERROR_RETURN ((LM_ERROR,
+ ACE_LIB_TEXT ("%p\n"),
+ ACE_LIB_TEXT ("socketpair")),
+ -1);
+# if defined (ACE_LACKS_SOCKET_BUFSIZ)
+ ACE_UNUSED_ARG (buffer_size);
+# else /* ! ACE_LACKS_SOCKET_BUFSIZ */
+ if (ACE_OS::setsockopt (this->handles_[0],
+ SOL_SOCKET,
+ SO_RCVBUF,
+ reinterpret_cast <const char *> (&buffer_size),
+ sizeof (buffer_size)) == -1
+ && errno != ENOTSUP)
+ {
+ this->close ();
+ return -1;
+ }
+ if (ACE_OS::setsockopt (this->handles_[1],
+ SOL_SOCKET,
+ SO_SNDBUF,
+ reinterpret_cast <const char *> (&buffer_size),
+ sizeof (buffer_size)) == -1
+ && errno != ENOTSUP)
+ {
+ this->close ();
+ return -1;
+ }
+# endif /* ! ACE_LACKS_SOCKET_BUFSIZ */
+#endif /* ! ACE_LACKS_SOCKETPAIR && ! ACE_HAS_STREAM_PIPES */
+ // Point both the read and write HANDLES to the appropriate socket
+ // HANDLEs.
+
+ return 0;
+}
+
+int
+ACE_Pipe::open (ACE_HANDLE handles[2])
+{
+ ACE_TRACE ("ACE_Pipe::open");
+
+ if (this->open () == -1)
+ return -1;
+ else
+ {
+ handles[0] = this->handles_[0];
+ handles[1] = this->handles_[1];
+ return 0;
+ }
+}
+
+// Do nothing...
+
+ACE_Pipe::ACE_Pipe (void)
+{
+ ACE_TRACE ("ACE_Pipe::ACE_Pipe");
+
+ this->handles_[0] = ACE_INVALID_HANDLE;
+ this->handles_[1] = ACE_INVALID_HANDLE;
+}
+
+ACE_Pipe::ACE_Pipe (ACE_HANDLE handles[2])
+{
+ ACE_TRACE ("ACE_Pipe::ACE_Pipe");
+
+ if (this->open (handles) == -1)
+ ACE_ERROR ((LM_ERROR,
+ ACE_LIB_TEXT ("ACE_Pipe::ACE_Pipe")));
+}
+
+ACE_Pipe::ACE_Pipe (ACE_HANDLE read,
+ ACE_HANDLE write)
+{
+ ACE_TRACE ("ACE_Pipe::ACE_Pipe");
+ this->handles_[0] = read;
+ this->handles_[1] = write;
+}
+
+int
+ACE_Pipe::close (void)
+{
+ ACE_TRACE ("ACE_Pipe::close");
+
+ int result = 0;
+
+ // Note that the following will work even if we aren't closing down
+ // sockets because <ACE_OS::closesocket> will just call <::close> in
+ // that case!
+
+ if (this->handles_[0] != ACE_INVALID_HANDLE)
+ result = ACE_OS::closesocket (this->handles_[0]);
+ this->handles_[0] = ACE_INVALID_HANDLE;
+
+ if (this->handles_[1] != ACE_INVALID_HANDLE)
+ result |= ACE_OS::closesocket (this->handles_[1]);
+ this->handles_[1] = ACE_INVALID_HANDLE;
+
+ return result;
+}
+
+// Send N char *ptrs and int lengths. Note that the char *'s precede
+// the ints (basically, an varargs version of writev). The count N is
+// the *total* number of trailing arguments, *not* a couple of the
+// number of tuple pairs!
+
+ssize_t
+ACE_Pipe::send (size_t n, ...) const
+{
+ ACE_TRACE ("ACE_Pipe::send");
+ va_list argp;
+ size_t total_tuples = n / 2;
+ iovec *iovp;
+#if defined (ACE_HAS_ALLOCA)
+ iovp = (iovec *) alloca (total_tuples * sizeof (iovec));
+#else
+ ACE_NEW_RETURN (iovp,
+ iovec[total_tuples],
+ -1);
+#endif /* !defined (ACE_HAS_ALLOCA) */
+
+ va_start (argp, n);
+
+ for (size_t i = 0; i < total_tuples; i++)
+ {
+ iovp[i].iov_base = va_arg (argp, char *);
+ iovp[i].iov_len = va_arg (argp, int);
+ }
+
+#if defined (ACE_WIN32)
+ ssize_t result = ACE::sendv (this->write_handle (),
+ iovp,
+ total_tuples);
+#else
+ ssize_t result = ACE_OS::writev (this->write_handle (),
+ iovp,
+ total_tuples);
+#endif /* ACE_WIN32 */
+
+#if !defined (ACE_HAS_ALLOCA)
+ delete [] iovp;
+#endif /* !defined (ACE_HAS_ALLOCA) */
+ va_end (argp);
+ return result;
+}
+
+// This is basically an interface to ACE_OS::readv, that doesn't use
+// the struct iovec explicitly. The ... can be passed as an arbitrary
+// number of (char *ptr, int len) tuples. However, the count N is the
+// *total* number of trailing arguments, *not* a couple of the number
+// of tuple pairs!
+
+ssize_t
+ACE_Pipe::recv (size_t n, ...) const
+{
+ ACE_TRACE ("ACE_Pipe::recv");
+ va_list argp;
+ size_t total_tuples = n / 2;
+ iovec *iovp;
+#if defined (ACE_HAS_ALLOCA)
+ iovp = (iovec *) alloca (total_tuples * sizeof (iovec));
+#else
+ ACE_NEW_RETURN (iovp,
+ iovec[total_tuples],
+ -1);
+#endif /* !defined (ACE_HAS_ALLOCA) */
+
+ va_start (argp, n);
+
+ for (size_t i = 0; i < total_tuples; i++)
+ {
+ iovp[i].iov_base = va_arg (argp, char *);
+ iovp[i].iov_len = va_arg (argp, int);
+ }
+
+#if defined (ACE_WIN32)
+ ssize_t result = ACE::recvv (this->read_handle (),
+ iovp,
+ total_tuples);
+#else
+ ssize_t result = ACE_OS::readv (this->read_handle (),
+ iovp,
+ total_tuples);
+#endif /* ACE_WIN32 */
+
+#if !defined (ACE_HAS_ALLOCA)
+ delete [] iovp;
+#endif /* !defined (ACE_HAS_ALLOCA) */
+ va_end (argp);
+ return result;
+}
+
+ACE_END_VERSIONED_NAMESPACE_DECL
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