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// SOCK_IO.cpp
// $Id$
#define ACE_BUILD_DLL
#include "ace/SOCK_IO.h"
#if defined (ACE_LACKS_INLINE_FUNCTIONS)
#include "ace/SOCK_IO.i"
#endif /* ACE_LACKS_INLINE_FUNCTIONS */
ACE_RCSID(ace, SOCK_IO, "$Id$")
ACE_ALLOC_HOOK_DEFINE(ACE_SOCK_IO)
void
ACE_SOCK_IO::dump (void) const
{
ACE_TRACE ("ACE_SOCK_IO::dump");
}
// Allows a client to read from a socket without having to provide
// a buffer to read. This method determines how much data is in the
// socket, allocates a buffer of this size, reads in the data, and
// returns the number of bytes read.
ssize_t
ACE_SOCK_IO::recv (iovec *io_vec)
{
#if defined (FIONREAD)
u_long inlen;
if (ACE_OS::ioctl (this->get_handle (), FIONREAD,
(u_long *) &inlen) == -1)
return -1;
else if (inlen > 0)
{
ACE_NEW_RETURN (io_vec->iov_base, char[inlen], -1);
io_vec->iov_len = this->recv (io_vec->iov_base, inlen);
return io_vec->iov_len;
}
else
return 0;
#else
ACE_UNUSED_ARG (io_vec);
ACE_NOTSUP_RETURN (-1);
#endif /* FIONREAD */
}
// 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_SOCK_IO::send (size_t n, ...) const
{
ACE_TRACE ("ACE_SOCK_IO::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, ssize_t);
}
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_Base 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_SOCK_IO::recv (size_t n, ...) const
{
ACE_TRACE ("ACE_SOCK_IO::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, ssize_t);
}
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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