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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#ifndef CEPH_LOGCLIENT_H
#define CEPH_LOGCLIENT_H
#include <iosfwd>
#include <sstream>
#include "common/LogEntry.h"
#include "common/Mutex.h"
class LogClient;
class MLog;
class MLogAck;
class Messenger;
class MonMap;
class Message;
class Connection;
class LogClientTemp
{
public:
LogClientTemp(clog_type type_, LogClient &parent_);
LogClientTemp(const LogClientTemp &rhs);
~LogClientTemp();
template<typename T>
std::ostream& operator<<(const T& rhs)
{
return ss << rhs;
}
private:
clog_type type;
LogClient &parent;
stringstream ss;
};
class LogClient
{
public:
enum logclient_flag_t {
NO_FLAGS = 0,
FLAG_MON = 0x1,
};
LogClient(CephContext *cct, Messenger *m, MonMap *mm,
enum logclient_flag_t flags);
void handle_log_ack(MLogAck *m);
LogClientTemp debug() {
return LogClientTemp(CLOG_DEBUG, *this);
}
void debug(std::stringstream &s) {
do_log(CLOG_DEBUG, s);
}
LogClientTemp info() {
return LogClientTemp(CLOG_INFO, *this);
}
void info(std::stringstream &s) {
do_log(CLOG_INFO, s);
}
LogClientTemp warn() {
return LogClientTemp(CLOG_WARN, *this);
}
void warn(std::stringstream &s) {
do_log(CLOG_WARN, s);
}
LogClientTemp error() {
return LogClientTemp(CLOG_ERROR, *this);
}
void error(std::stringstream &s) {
do_log(CLOG_ERROR, s);
}
LogClientTemp sec() {
return LogClientTemp(CLOG_SEC, *this);
}
void sec(std::stringstream &s) {
do_log(CLOG_SEC, s);
}
void reset_session();
Message *get_mon_log_message();
bool are_pending();
private:
void do_log(clog_type type, std::stringstream& ss);
void do_log(clog_type type, const std::string& s);
Message *_get_mon_log_message();
CephContext *cct;
Messenger *messenger;
MonMap *monmap;
bool is_mon;
Mutex log_lock;
version_t last_log_sent;
version_t last_log;
std::deque<LogEntry> log_queue;
friend class LogClientTemp;
};
#endif
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