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251 lines
5.5 KiB
251 lines
5.5 KiB
// -*- C++ -*-
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// Module: Log4CPLUS
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// File: internal.h
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// Created: 1/2009
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// Author: Vaclav Haisman
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//
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//
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// Copyright (C) 2009-2010, Vaclav Haisman. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modifica-
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// tion, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
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// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
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// DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/** @file
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* This header contains declaration internal to log4cplus. They must never be
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* visible from user accesible headers or exported in DLL/shared libray.
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*/
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#ifndef LOG4CPLUS_INTERNAL_INTERNAL_HEADER_
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#define LOG4CPLUS_INTERNAL_INTERNAL_HEADER_
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#include <log4cplus/config.hxx>
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#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
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#pragma once
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#endif
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#if ! defined (INSIDE_LOG4CPLUS)
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# error "This header must not be be used outside log4cplus' implementation files."
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#endif
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#include <memory>
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#include <vector>
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#include <sstream>
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#include <cstdio>
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#include <log4cplus/tstring.h>
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#include <log4cplus/streams.h>
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#include <log4cplus/ndc.h>
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#include <log4cplus/mdc.h>
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#include <log4cplus/spi/loggingevent.h>
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#include <log4cplus/thread/impl/tls.h>
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#include <log4cplus/helpers/snprintf.h>
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namespace log4cplus {
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namespace internal {
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//! Canonical empty string. It is used when the need to return empty string
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//! by reference arises.
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extern log4cplus::tstring const empty_str;
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struct gft_scratch_pad
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{
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gft_scratch_pad ();
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~gft_scratch_pad ();
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void
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reset ()
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{
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uc_q_str_valid = false;
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q_str_valid = false;
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s_str_valid = false;
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ret.clear ();
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}
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log4cplus::tstring q_str;
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log4cplus::tstring uc_q_str;
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log4cplus::tstring s_str;
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log4cplus::tstring ret;
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log4cplus::tstring fmt;
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log4cplus::tstring tmp;
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std::vector<tchar> buffer;
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bool uc_q_str_valid;
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bool q_str_valid;
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bool s_str_valid;
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};
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struct appender_sratch_pad
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{
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appender_sratch_pad ();
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~appender_sratch_pad ();
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tostringstream oss;
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tstring str;
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std::string chstr;
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};
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//! Per thread data.
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struct per_thread_data
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{
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per_thread_data ();
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~per_thread_data ();
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tostringstream macros_oss;
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tostringstream layout_oss;
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DiagnosticContextStack ndc_dcs;
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MappedDiagnosticContextMap mdc_map;
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log4cplus::tstring thread_name;
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log4cplus::tstring thread_name2;
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gft_scratch_pad gft_sp;
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appender_sratch_pad appender_sp;
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log4cplus::tstring faa_str;
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log4cplus::tstring ll_str;
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spi::InternalLoggingEvent forced_log_ev;
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std::FILE * fnull;
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log4cplus::helpers::snprintf_buf snprintf_buf;
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};
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per_thread_data * alloc_ptd ();
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// TLS key whose value is pointer struct per_thread_data.
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extern log4cplus::thread::impl::tls_key_type tls_storage_key;
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#if ! defined (LOG4CPLUS_SINGLE_THREADED) \
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&& defined (LOG4CPLUS_THREAD_LOCAL_VAR)
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extern LOG4CPLUS_THREAD_LOCAL_VAR per_thread_data * ptd;
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inline
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void
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set_ptd (per_thread_data * p)
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{
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ptd = p;
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}
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//! The default value of the \param alloc is false for Win32 DLL builds
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//! since per thread data are already initialized by DllMain().
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inline
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per_thread_data *
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get_ptd (bool alloc
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#if defined (_WIN32) && defined (LOG4CPLUS_BUILD_DLL)
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= false
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#else
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= true
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#endif
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)
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{
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if (LOG4CPLUS_UNLIKELY (! ptd && alloc))
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return alloc_ptd ();
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// The assert() does not belong here. get_ptd() might be called by
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// cleanup code that can handle the returned NULL pointer.
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//assert (ptd);
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return ptd;
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}
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#else // defined (LOG4CPLUS_THREAD_LOCAL_VAR)
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inline
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void
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set_ptd (per_thread_data * p)
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{
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thread::impl::tls_set_value (tls_storage_key, p);
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}
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inline
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per_thread_data *
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get_ptd (bool alloc = true)
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{
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per_thread_data * ptd
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= reinterpret_cast<per_thread_data *>(
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thread::impl::tls_get_value (tls_storage_key));
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if (LOG4CPLUS_UNLIKELY (! ptd && alloc))
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return alloc_ptd ();
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return ptd;
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}
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#endif // defined (LOG4CPLUS_THREAD_LOCAL_VAR)
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inline
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tstring &
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get_thread_name_str ()
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{
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return get_ptd ()->thread_name;
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}
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inline
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tstring &
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get_thread_name2_str ()
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{
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return get_ptd ()->thread_name2;
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}
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inline
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gft_scratch_pad &
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get_gft_scratch_pad ()
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{
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return get_ptd ()->gft_sp;
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}
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inline
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appender_sratch_pad &
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get_appender_sp ()
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{
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return get_ptd ()->appender_sp;
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}
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} // namespace internal {
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namespace detail
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{
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LOG4CPLUS_EXPORT void clear_tostringstream (tostringstream &);
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} // namespace detail
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} // namespace log4cplus {
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#endif // LOG4CPLUS_INTERNAL_INTERNAL_HEADER_
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