diff options
Diffstat (limited to 'ace/SPIPE_Stream.cpp')
-rw-r--r-- | ace/SPIPE_Stream.cpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/ace/SPIPE_Stream.cpp b/ace/SPIPE_Stream.cpp new file mode 100644 index 00000000000..ab38d87e666 --- /dev/null +++ b/ace/SPIPE_Stream.cpp @@ -0,0 +1,93 @@ +// 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; + ssize_t result; +#if defined (ACE_HAS_ALLOCA) + iovec *iovp = (iovec *) alloca (total_tuples * sizeof (iovec)); +#else + iovec *iovp; + + 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); + } + + 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; + ssize_t result; +#if defined (ACE_HAS_ALLOCA) + iovec *iovp = (iovec *) alloca (total_tuples * sizeof (iovec)); +#else + iovec *iovp; + + 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); + } + + 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; +} |