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  • Committer: Monty Taylor
  • Date: 2010-09-26 21:24:15 UTC
  • mto: (1796.1.2 build)
  • mto: This revision was merged to the branch mainline in revision 1797.
  • Revision ID: mordred@inaugust.com-20100926212415-5fn3p3q75pgiei7r
Moved protocol doc into the docs.

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plugin/syslog/logging.cc
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2009 Sun Microsystems, Inc.
 
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 *  Copyright (C) 2009 Sun Microsystems
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 *  Copyright (C) 2010 Mark Atwood
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 *
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 *  This program is free software; you can redistribute it and/or modify
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#include "config.h"
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#include <drizzled/gettext.h>
 
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#include <drizzled/session.h>
 
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#include <stdarg.h>
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#include <limits.h>
 
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <boost/date_time.hpp>
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#include <drizzled/gettext.h>
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#include <drizzled/session.h>
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#include "logging.h"
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#include "wrap.h"
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namespace drizzle_plugin
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{
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logging::Syslog::Syslog(const std::string &facility,
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                        const std::string &priority,
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                        uint64_t threshold_slow,
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                        uint64_t threshold_big_resultset,
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                        uint64_t threshold_big_examined) :
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  drizzled::plugin::Logging("Syslog Logging"),
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  _facility(WrapSyslog::getFacilityByName(facility.c_str())),
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  _priority(WrapSyslog::getPriorityByName(priority.c_str())),
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  _threshold_slow(threshold_slow),
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  _threshold_big_resultset(threshold_big_resultset),
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  _threshold_big_examined(threshold_big_examined)
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{
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  if (_facility < 0)
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  {
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    drizzled::errmsg_printf(ERRMSG_LVL_WARN,
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                            _("syslog facility \"%s\" not known, using \"local0\""),
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                            facility.c_str());
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    _facility= WrapSyslog::getFacilityByName("local0");
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  }
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  if (_priority < 0)
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  {
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    drizzled::errmsg_printf(ERRMSG_LVL_WARN,
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                            _("syslog priority \"%s\" not known, using \"info\""),
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                            priority.c_str());
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    _priority= WrapSyslog::getPriorityByName("info");
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  }
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}
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bool logging::Syslog::post(drizzled::Session *session)
 
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using namespace drizzled;
 
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/* stolen from mysys/my_getsystime
 
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   until the Session has a good utime "now" we can use
 
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   will have to use this instead */
 
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static uint64_t get_microtime()
 
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{
 
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#if defined(HAVE_GETHRTIME)
 
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  return gethrtime()/1000;
 
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#else
 
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  uint64_t newtime;
 
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  struct timeval t;
 
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  /* loop is because gettimeofday may fail on some systems */
 
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  while (gettimeofday(&t, NULL) != 0) {}
 
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  newtime= (uint64_t)t.tv_sec * 1000000 + t.tv_usec;
 
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  return newtime;
 
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#endif
 
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}
 
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Logging_syslog::Logging_syslog()
 
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  : drizzled::plugin::Logging("Logging_syslog")
 
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{
 
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  syslog_facility= WrapSyslog::getFacilityByName(syslog_module::sysvar_facility);
 
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  if (syslog_facility < 0)
 
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  {
 
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    errmsg_printf(ERRMSG_LVL_WARN,
 
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                  _("syslog facility \"%s\" not known, using \"local0\""),
 
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                  syslog_module::sysvar_facility);
 
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    syslog_facility= WrapSyslog::getFacilityByName("local0");
 
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  }
 
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  syslog_priority= WrapSyslog::getPriorityByName(syslog_module::sysvar_logging_priority);
 
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  if (syslog_priority < 0)
 
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  {
 
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    errmsg_printf(ERRMSG_LVL_WARN,
 
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                  _("syslog priority \"%s\" not known, using \"info\""),
 
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                  syslog_module::sysvar_logging_priority);
 
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    syslog_priority= WrapSyslog::getPriorityByName("info");
 
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  }
 
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  WrapSyslog::singleton().openlog(syslog_module::sysvar_ident);
 
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}
 
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bool Logging_syslog::post (Session *session)
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{
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  assert(session != NULL);
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  if (syslog_module::sysvar_logging_enable == false)
 
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    return false;
 
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  // return if query was not too small
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  if (session->sent_row_count < _threshold_big_resultset)
 
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  if (session->sent_row_count < syslog_module::sysvar_logging_threshold_big_resultset)
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    return false;
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  if (session->examined_row_count < _threshold_big_examined)
 
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  if (session->examined_row_count < syslog_module::sysvar_logging_threshold_big_examined)
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    return false;
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  /* TODO, the session object should have a "utime command completed"
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     inside itself, so be more accurate, and so this doesnt have to
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     keep calling current_utime, which can be slow */
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  boost::posix_time::ptime mytime(boost::posix_time::microsec_clock::local_time());
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  boost::posix_time::ptime epoch(boost::gregorian::date(1970,1,1));
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  uint64_t t_mark= (mytime-epoch).total_microseconds();
 
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  uint64_t t_mark= get_microtime();
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  // return if query was not too slow
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  if ((t_mark - session->start_utime) < _threshold_slow)
 
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  if ((t_mark - session->start_utime) < syslog_module::sysvar_logging_threshold_slow)
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    return false;
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  drizzled::Session::QueryString query_string(session->getQueryString());
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  drizzled::util::string::const_shared_ptr schema(session->schema());
 
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  /* to avoid trying to printf %s something that is potentially NULL */
 
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  const char *dbs= session->db.empty() ? "" : session->db.c_str();
 
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  const char *qys= (! session->getQueryString().empty()) ? session->getQueryString().c_str() : "";
 
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  int qyl= 0;
 
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  if (qys)
 
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    qyl= session->getQueryLength();
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  WrapSyslog::singleton()
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    .log(_facility, _priority,
 
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    .log(syslog_facility, syslog_priority,
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         "thread_id=%ld query_id=%ld"
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         " db=\"%.*s\""
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         " query=\"%.*s\""
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         " tmp_table=%ld total_warn_count=%ld\n",
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         (unsigned long) session->thread_id,
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         (unsigned long) session->getQueryId(),
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         (int) schema->size(),
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         schema->empty() ? "" : schema->c_str(),
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         (int) query_string->length(), 
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         query_string->empty() ? "" : query_string->c_str(),
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         (int) drizzled::command_name[session->command].length,
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         drizzled::command_name[session->command].str,
 
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         (int) session->db.length(), dbs,
 
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         qyl, qys,
 
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         (int) command_name[session->command].length,
 
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         command_name[session->command].str,
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         (unsigned long long) (t_mark - session->getConnectMicroseconds()),
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         (unsigned long long) (t_mark - session->start_utime),
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         (unsigned long long) (t_mark - session->utime_after_lock),
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    return false;
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}
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} /* namespsace drizzle_plugin */