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104 lines
2.6 KiB
C++
104 lines
2.6 KiB
C++
// $Id: SPIPE_Stream.cpp 91286 2010-08-05 09:04:31Z johnnyw $
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#include "ace/SPIPE_Stream.h"
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#include "ace/OS_Memory.h"
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#if !defined (__ACE_INLINE__)
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#include "ace/SPIPE_Stream.inl"
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#endif /* __ACE_INLINE__ */
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ACE_BEGIN_VERSIONED_NAMESPACE_DECL
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ACE_ALLOC_HOOK_DEFINE(ACE_SPIPE_Stream)
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void
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ACE_SPIPE_Stream::dump (void) const
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{
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#if defined (ACE_HAS_DUMP)
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ACE_TRACE ("ACE_SPIPE_Stream::dump");
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#endif /* ACE_HAS_DUMP */
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}
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// Simple-minded do nothing constructor.
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ACE_SPIPE_Stream::ACE_SPIPE_Stream (void)
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{
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// ACE_TRACE ("ACE_SPIPE_Stream::ACE_SPIPE_Stream");
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}
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// Send N char *ptrs and int lengths. Note that the char *'s precede
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// the ints (basically, an varargs version of writev). The count N is
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// the *total* number of trailing arguments, *not* a couple of the
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// number of tuple pairs!
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ssize_t
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ACE_SPIPE_Stream::send (size_t n, ...) const
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{
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// ACE_TRACE ("ACE_SPIPE_Stream::send");
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va_list argp;
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int total_tuples = static_cast<int> (n / 2);
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iovec *iovp;
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#if defined (ACE_HAS_ALLOCA)
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iovp = (iovec *) alloca (total_tuples * sizeof (iovec));
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#else
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ACE_NEW_RETURN (iovp,
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iovec[total_tuples],
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-1);
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#endif /* !defined (ACE_HAS_ALLOCA) */
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va_start (argp, n);
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for (int i = 0; i < total_tuples; i++)
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{
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iovp[i].iov_base = va_arg (argp, char *);
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iovp[i].iov_len = va_arg (argp, int);
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}
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ssize_t result = ACE_OS::writev (this->get_handle (), iovp, total_tuples);
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#if !defined (ACE_HAS_ALLOCA)
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delete [] iovp;
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#endif /* !defined (ACE_HAS_ALLOCA) */
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va_end (argp);
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return result;
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}
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// This is basically an interface to ACE_OS::readv, that doesn't use
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// the struct iovec explicitly. The ... can be passed as an arbitrary
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// number of (char *ptr, int len) tuples. However, the count N is the
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// *total* number of trailing arguments, *not* a couple of the number
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// of tuple pairs!
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ssize_t
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ACE_SPIPE_Stream::recv (size_t n, ...) const
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{
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ACE_TRACE ("ACE_SPIPE_Stream::recv");
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va_list argp;
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int total_tuples = static_cast<int> (n / 2);
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iovec *iovp;
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#if defined (ACE_HAS_ALLOCA)
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iovp = (iovec *) alloca (total_tuples * sizeof (iovec));
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#else
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ACE_NEW_RETURN (iovp,
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iovec[total_tuples],
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-1);
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#endif /* !defined (ACE_HAS_ALLOCA) */
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va_start (argp, n);
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for (int i = 0; i < total_tuples; i++)
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{
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iovp[i].iov_base = va_arg (argp, char *);
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iovp[i].iov_len = va_arg (argp, int);
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}
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ssize_t result = ACE_OS::readv (this->get_handle (), iovp, total_tuples);
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#if !defined (ACE_HAS_ALLOCA)
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delete [] iovp;
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#endif /* !defined (ACE_HAS_ALLOCA) */
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va_end (argp);
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return result;
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}
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ACE_END_VERSIONED_NAMESPACE_DECL
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