mirror of https://github.com/KLayout/klayout.git
440 lines
7.4 KiB
C++
440 lines
7.4 KiB
C++
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/*
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KLayout Layout Viewer
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Copyright (C) 2006-2017 Matthias Koefferlein
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include "tlLog.h"
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#include <unistd.h>
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namespace tl
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{
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// ------------------------------------------------
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// Verbosity implementation
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static int m_verbosity_level = 0;
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void
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verbosity (int level)
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{
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m_verbosity_level = level;
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}
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int
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verbosity ()
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{
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return m_verbosity_level;
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}
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// ------------------------------------------------
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// Channel implementation
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Channel::Channel ()
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: m_lock (), m_no_endl (false), m_active (false)
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{
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// .. nothing else ..
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}
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Channel::~Channel ()
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{
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// .. nothing yet ..
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}
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ChannelProxy
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Channel::issue_proxy ()
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{
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m_no_endl = false;
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m_lock.lock ();
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if (! m_active) {
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begin ();
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m_active = true;
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}
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return ChannelProxy (this);
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}
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void
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Channel::release_proxy ()
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{
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if (! m_no_endl) {
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endl (); // this helps remembering that there is something implicit going on here ..
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}
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end ();
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m_active = false;
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m_no_endl = false;
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m_lock.unlock ();
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}
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ChannelEndl endl;
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ChannelNoendl noendl;
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// ------------------------------------------------
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// LogTee implementation
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LogTee::LogTee ()
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{
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// .. nothing yet ..
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}
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LogTee::LogTee (Channel *first, bool owned)
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{
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add (first, owned);
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}
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void
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LogTee::add (Channel *other, bool owned)
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{
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m_lock.lock ();
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m_channels.push_back (other);
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if (owned) {
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m_owned_channels.push_back (other);
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}
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m_lock.unlock ();
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}
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void
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LogTee::prepend (Channel *other, bool owned)
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{
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m_lock.lock ();
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m_channels.insert (m_channels.begin (), other);
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if (owned) {
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m_owned_channels.push_back (other);
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}
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m_lock.unlock ();
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}
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void
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LogTee::clear ()
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{
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m_lock.lock ();
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m_channels.clear ();
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m_owned_channels.clear ();
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m_lock.unlock ();
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}
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void
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LogTee::puts (const char *s)
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{
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try {
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for (tl::weak_collection<tl::Channel>::iterator c = m_channels.begin (); c != m_channels.end (); ++c) {
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c->puts (s);
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}
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} catch (...) {
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// ignore exceptions here
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}
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}
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void
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LogTee::endl ()
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{
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try {
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for (tl::weak_collection<tl::Channel>::iterator c = m_channels.begin (); c != m_channels.end (); ++c) {
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c->endl ();
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}
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} catch (...) {
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// ignore exceptions here
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}
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}
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void
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LogTee::end ()
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{
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try {
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for (tl::weak_collection<tl::Channel>::iterator c = m_channels.begin (); c != m_channels.end (); ++c) {
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c->end ();
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}
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} catch (...) {
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// ignore exceptions here
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}
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}
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void
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LogTee::begin ()
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{
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try {
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for (tl::weak_collection<tl::Channel>::iterator c = m_channels.begin (); c != m_channels.end (); ++c) {
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c->begin ();
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}
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} catch (...) {
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// ignore exceptions here
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}
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}
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// ------------------------------------------------
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// ChannelProxy implementation
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ChannelProxy::ChannelProxy (Channel *channel)
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: mp_channel (channel)
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{
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}
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ChannelProxy::~ChannelProxy ()
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{
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if (mp_channel) {
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mp_channel->release_proxy ();
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mp_channel = 0;
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}
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}
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ChannelProxy &
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ChannelProxy::operator= (const ChannelProxy &d)
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{
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if (mp_channel != d.mp_channel) {
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mp_channel = d.mp_channel;
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// transfer channel to the assigned object
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(const_cast<ChannelProxy &> (d)).mp_channel = 0;
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}
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return *this;
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}
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ChannelProxy::ChannelProxy (const ChannelProxy &d)
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: mp_channel (d.mp_channel)
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{
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// transfer channel to the assigned object
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(const_cast<ChannelProxy &> (d)).mp_channel = 0;
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}
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// ------------------------------------------------
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// Some utilities for colorized terminal output
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static bool
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can_colorize (FILE *stream)
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{
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return isatty (fileno (stream));
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}
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#define ANSI_RED "\033[31;1m"
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#define ANSI_BLUE "\033[34m"
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#define ANSI_GREEN "\033[32m"
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#define ANSI_RESET "\033[0m"
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// ------------------------------------------------
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// InfoChannel implementation
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/**
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* @brief A special implementation for information messages to stdout
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*/
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class InfoChannel : public Channel
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{
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public:
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InfoChannel (int verbosity);
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~InfoChannel ();
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protected:
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virtual void puts (const char *s);
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virtual void endl ();
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virtual void end ();
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virtual void begin ();
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private:
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int m_verbosity;
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bool m_colorized;
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};
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InfoChannel::InfoChannel (int verbosity)
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: m_verbosity (verbosity)
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{
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m_colorized = can_colorize (stdout);
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}
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InfoChannel::~InfoChannel ()
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{
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// .. nothing yet ..
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}
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void
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InfoChannel::puts (const char *s)
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{
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if (verbosity () >= m_verbosity) {
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fprintf (stdout, "%s", s);
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}
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}
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void
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InfoChannel::endl ()
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{
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if (verbosity () >= m_verbosity) {
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fprintf (stdout, "\n");
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}
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}
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void
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InfoChannel::end ()
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{
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if (verbosity () >= m_verbosity) {
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if (m_verbosity == 0 && m_colorized) {
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fputs (ANSI_RESET, stdout);
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}
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fflush (stdout);
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}
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}
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void
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InfoChannel::begin ()
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{
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if (verbosity () >= m_verbosity) {
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if (m_verbosity == 0 && m_colorized) {
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fputs (ANSI_GREEN, stdout);
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}
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}
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}
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// ------------------------------------------------
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// WarningChannel implementation
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/**
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* @brief A special implementation for warnings to stdout
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*/
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class WarningChannel : public Channel
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{
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public:
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WarningChannel ();
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~WarningChannel ();
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protected:
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virtual void puts (const char *s);
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virtual void endl ();
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virtual void end ();
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virtual void begin ();
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private:
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bool m_colorized;
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};
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WarningChannel::WarningChannel ()
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{
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m_colorized = can_colorize (stdout);
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}
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WarningChannel::~WarningChannel ()
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{
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// .. nothing yet ..
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}
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void
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WarningChannel::puts (const char *s)
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{
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fputs (s, stdout);
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}
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void
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WarningChannel::endl ()
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{
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fputs ("\n", stdout);
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}
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void
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WarningChannel::end ()
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{
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if (m_colorized) {
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fputs (ANSI_RESET, stdout);
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}
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fflush (stdout);
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}
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void
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WarningChannel::begin ()
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{
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if (m_colorized) {
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fputs (ANSI_BLUE, stdout);
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}
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fputs ("Warning: ", stdout);
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}
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// ------------------------------------------------
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// ErrorChannel implementation
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/**
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* @brief A special implementation for errors to stderr
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*/
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class ErrorChannel : public Channel
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{
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public:
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ErrorChannel ();
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~ErrorChannel ();
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protected:
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virtual void puts (const char *s);
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virtual void endl ();
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virtual void end ();
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virtual void begin ();
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private:
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bool m_colorized;
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};
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ErrorChannel::ErrorChannel ()
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{
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m_colorized = can_colorize (stderr);
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}
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ErrorChannel::~ErrorChannel ()
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{
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// .. nothing yet ..
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}
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void
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ErrorChannel::puts (const char *s)
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{
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fputs (s, stderr);
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}
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void
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ErrorChannel::endl ()
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{
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fputs ("\n", stderr);
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}
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void
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ErrorChannel::end ()
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{
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if (m_colorized) {
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fputs (ANSI_RESET, stderr);
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}
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fflush (stderr);
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}
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void
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ErrorChannel::begin ()
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{
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if (m_colorized) {
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fputs (ANSI_RED, stderr);
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}
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fputs ("ERROR: ", stderr);
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}
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// ------------------------------------------------
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// The instances of the log channels
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TL_PUBLIC LogTee warn (new WarningChannel (), true);
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TL_PUBLIC LogTee info (new InfoChannel (0), true);
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TL_PUBLIC LogTee log (new InfoChannel (10), true);
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TL_PUBLIC LogTee error (new ErrorChannel (), true);
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} // namespace tl
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