Danny Robson
8bfb1e3d92
This ensures we'll error out at compile time rather than encounter a static initialisation ordering error.
107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 2012-2016 Danny Robson <danny@nerdcruft.net>
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*/
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#include "log.hpp"
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#include "../cast.hpp"
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#include "../string.hpp"
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#include "sink/console.hpp"
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#include "sink/path.hpp"
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#include <iostream>
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#include <mutex>
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#include <map>
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#include <string>
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///////////////////////////////////////////////////////////////////////////////
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bool
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cruft::log::needs_break (level_t level)
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{
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static level_t break_level;
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static bool has_level = [&] (void) {
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const char *env = getenv ("BREAK_LEVEL");
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if (!env)
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return false;
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try {
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break_level = cruft::log::to_level (env);
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return true;
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} catch (...) {
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return false;
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}
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} ();
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return has_level && level <= break_level;
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}
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///////////////////////////////////////////////////////////////////////////////
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static constinit std::once_flag s_sink_init;
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static constinit std::unique_ptr<cruft::log::sink::base> s_default_sink;
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//-----------------------------------------------------------------------------
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cruft::log::sink::base&
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cruft::log::default_sink (std::unique_ptr<sink::base> value)
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{
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s_default_sink = std::move (value);
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return *s_default_sink;
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}
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//-----------------------------------------------------------------------------
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cruft::log::sink::base&
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cruft::log::default_sink ()
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{
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std::call_once (s_sink_init, [&] () {
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static char const *DEFAULT_SINK = "CONSOLE";
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char const *log_sink = getenv ("CRUFT_LOG_SINK") ?: DEFAULT_SINK;
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if (!strcmp (log_sink, "PATH")) {
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default_sink (std::make_unique<sink::path> (PACKAGE_NAME));
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} else if (!strcmp (log_sink, "CONSOLE")) {
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default_sink (std::make_unique<sink::console> (PACKAGE_NAME));
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} else {
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std::clog << "Unknown logging sink. Falling back to console.\n";
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default_sink (std::make_unique<sink::console> (PACKAGE_NAME));
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}
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});
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return *s_default_sink;
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}
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///////////////////////////////////////////////////////////////////////////////
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void
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cruft::log::write (level_t level, const std::string &msg)
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{
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return write (level, std::string_view (msg));
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}
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//-----------------------------------------------------------------------------
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void
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cruft::log::write (level_t level, char const *msg)
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{
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return write (level, std::string_view (msg));
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}
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//-----------------------------------------------------------------------------
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void
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cruft::log::write (level_t level, std::string_view msg)
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{
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return default_sink ().write (
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packet (level, msg)
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);
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}
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