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// SPIPE_Stream.cpp
// $Id$
#define ACE_BUILD_DLL
#include "ace/SPIPE_Stream.h"
ACE_ALLOC_HOOK_DEFINE(ACE_SPIPE_Stream)
void
ACE_SPIPE_Stream::dump (void) const
{
ACE_TRACE ("ACE_SPIPE_Stream::dump");
}
// Simple-minded do nothing constructor.
ACE_SPIPE_Stream::ACE_SPIPE_Stream (void)
{
// ACE_TRACE ("ACE_SPIPE_Stream::ACE_SPIPE_Stream");
}
// 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_SPIPE_Stream::send (size_t n, ...) const
{
// ACE_TRACE ("ACE_SPIPE_Stream::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);
}
ssize_t result = ACE_OS::writev (this->get_handle (), iovp, total_tuples);
#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_SPIPE_Stream::recv (size_t n, ...) const
{
ACE_TRACE ("ACE_SPIPE_Stream::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);
}
ssize_t result = ACE_OS::readv (this->get_handle (), iovp, total_tuples);
#if !defined (ACE_HAS_ALLOCA)
delete [] iovp;
#endif /* !defined (ACE_HAS_ALLOCA) */
va_end (argp);
return result;
}
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