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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) 2004-2010 Sage Weil <sage@newdream.net>
* Copyright (C) 2010 Dreamhost
*
* 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_DOUT_H
#define CEPH_DOUT_H
#include <iostream>
#include <pthread.h>
#include <streambuf>
#include <sstream>
#include "include/assert.h"
#include "common/config.h"
#include "common/likely.h"
#include "common/Clock.h"
#include "log/Log.h"
extern void dout_emergency(const char * const str);
extern void dout_emergency(const std::string &str);
// intentionally conflict with endl
class _bad_endl_use_dendl_t { public: _bad_endl_use_dendl_t(int) {} };
static const _bad_endl_use_dendl_t endl = 0;
inline std::ostream& operator<<(std::ostream& out, _bad_endl_use_dendl_t) {
assert(0 && "you are using the wrong endl.. use std::endl or dendl");
return out;
}
// generic macros
#define dout_prefix *_dout
#define dout_impl(cct, sub, v) \
do { \
if (cct->_conf->subsys.should_gather(sub, v)) { \
if (0) { \
char __array[((v >= -1) && (v <= 200)) ? 0 : -1] __attribute__((unused)); \
} \
ceph::log::Entry *_dout_e = cct->_log->create_entry(v, sub); \
ostream _dout_os(&_dout_e->m_streambuf); \
CephContext *_dout_cct = cct; \
std::ostream* _dout = &_dout_os;
#define lsubdout(cct, sub, v) dout_impl(cct, ceph_subsys_##sub, v) dout_prefix
#define ldout(cct, v) dout_impl(cct, dout_subsys, v) dout_prefix
#define lderr(cct) dout_impl(cct, ceph_subsys_, -1) dout_prefix
#define lgeneric_subdout(cct, sub, v) dout_impl(cct, ceph_subsys_##sub, v) *_dout
#define lgeneric_dout(cct, v) dout_impl(cct, ceph_subsys_, v) *_dout
#define lgeneric_derr(cct) dout_impl(cct, ceph_subsys_, -1) *_dout
// NOTE: depend on magic value in _ASSERT_H so that we detect when
// /usr/include/assert.h clobbers our fancier version.
#define dendl std::flush; \
_ASSERT_H->_log->submit_entry(_dout_e); \
} \
} while (0)
#endif
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