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// $Id$
// client.C
#include "Log_Wrapper.h"
#include "ace/Truncate.h"
#include "ace/OS_NS_unistd.h"
#include "ace/OS_NS_sys_utsname.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_netdb.h"
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_time.h"
#include "ace/OS_NS_stdlib.h"
ACE_RCSID(Multicast, Log_Wrapper, "$Id$")
Log_Wrapper::Log_Wrapper (void)
{
sequence_number_ = 0;
this->log_msg_.app_id = ACE_OS::getpid ();
}
Log_Wrapper::~Log_Wrapper (void)
{
}
// Set the log_msg_ host address.
int
Log_Wrapper::open (const int port, const char *mcast_addr)
{
struct hostent *host_info;
ACE_utsname host_data;
if (ACE_OS::uname (&host_data) < 0)
return -1;
if ((host_info = ACE_OS::gethostbyname (host_data.nodename)) == 0)
return -1;
else
ACE_OS::memcpy ((char *) &this->log_msg_.host,
(char *) host_info->h_addr,
host_info->h_length);
// This starts out initialized to all zeros!
server_ = ACE_INET_Addr (port, mcast_addr);
if (logger_.join (server_) == -1)
ACE_OS::perror("can't join to multicast group"), ACE_OS::exit(1);
// success.
return 0;
}
// Send the message to a logger object.
// This wrapper fills in all the log_record info for you.
// uses iovector stuff to make contiguous header and message.
int
Log_Wrapper::log_message (Log_Priority type, char *message)
{
sequence_number_++;
this->log_msg_.type = type;
// Casting time() to long will start causing bad results sometime in 2038
// but the receiver isn't looking at the time, so who cares?
this->log_msg_.time = (long) ACE_OS::time (0);
this->log_msg_.msg_length =
ACE_Utils::truncate_cast<ACE_INT32> (ACE_OS::strlen (message) + 1);
this->log_msg_.sequence_number = ACE_HTONL(sequence_number_);
iovec iovp[2];
iovp[0].iov_base = reinterpret_cast<char*> (&log_msg_);
iovp[0].iov_len = sizeof (log_msg_);
iovp[1].iov_base = message;
iovp[1].iov_len = log_msg_.msg_length;
logger_.send (iovp, 2);
// success.
return 0;
}
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