std::ostream& fatvm::no_such_msg (std::ostream& out
, const char* what, const char* file, int line) {
if (what == 0) {
what = "object";
}
return header_msg (out, file, line) << "no such " << what << " exists";
}
std::ostream& fatvm::out_of_limit_msg (std::ostream& out
, int64_t limit, int64_t required
, const char* what, const char* file, int line) {
if (what == 0) {
what = "";
}
return header_msg (out, file, line) << what << " required " << required
<< " exceeding limit " << limit;
}
std::ostream& fatvm::out_of_range_msg (std::ostream& out
, int64_t begin, int64_t end, int64_t index
, const char* what, const char* file, int line) {
if (what == 0) {
what = "";
}
return header_msg (out, file, line) << what << " " << index
<< " not in [" << begin << ", " << end << ")";
}
ssize_t
ACE_Log_Msg_IPC::log (ACE_Log_Record &log_record)
{
// Serialize the log record using a CDR stream, allocate enough
// space for the complete <ACE_Log_Record>.
size_t const max_payload_size =
4 // type
+ 4 // pid
+ 12 // timestamp
+ 4 // process id
+ 4 // data length
#if defined (ACE_USES_WCHAR)
+ (log_record.msg_data_len () * ACE_OutputCDR::wchar_maxbytes()) // message
#else
+ log_record.msg_data_len () // message
#endif
+ ACE_CDR::MAX_ALIGNMENT; // padding;
// Insert contents of <log_record> into payload stream.
ACE_OutputCDR payload (max_payload_size);
payload << log_record;
// Get the number of bytes used by the CDR stream. If it becomes desireable
// to support payloads more than 4GB, this field will need to be changed
// to a 64-bit value.
ACE_CDR::ULong length =
ACE_Utils::truncate_cast<ACE_CDR::ULong> (payload.total_length ());
// Send a header so the receiver can determine the byte order and
// size of the incoming CDR stream.
ACE_OutputCDR header (ACE_CDR::MAX_ALIGNMENT + 8);
header << ACE_OutputCDR::from_boolean (ACE_CDR_BYTE_ORDER);
// Store the size of the payload that follows
header << ACE_CDR::ULong (length);
// Use an iovec to send both buffer and payload simultaneously.
iovec iov[2];
iov[0].iov_base = header.begin ()->rd_ptr ();
iov[0].iov_len = 8;
iov[1].iov_base = payload.begin ()->rd_ptr ();
iov[1].iov_len = length;
#if defined (ACE_HAS_STREAM_PIPES)
// Use the <putpmsg> API if supported to ensure correct message
// queueing according to priority.
ACE_Str_Buf header_msg (static_cast<void *> (header.begin ()->rd_ptr ()),
static_cast<int> (8));
ACE_Str_Buf payload_msg (static_cast<void *> (payload.begin ()->rd_ptr ()),
static_cast<int> (length));
return this->message_queue_.send (&header_msg,
&payload_msg,
static_cast<int> (log_record.priority ()),
MSG_BAND);
#else
// We're running over sockets, so send header and payload
// efficiently using "gather-write".
return this->message_queue_.sendv_n (iov, 2);
#endif /* ACE_HAS_STREAM_PIPES */
}
