135 lines
3.7 KiB
C++
135 lines
3.7 KiB
C++
// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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/// @file log.cpp
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/// @brief Logging
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/// @ingroup libaegisub
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#include "../config.h"
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#include "libaegisub/log.h"
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#include "libaegisub/cajun/elements.h"
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#include "libaegisub/cajun/writer.h"
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#include "libaegisub/dispatch.h"
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#include "libaegisub/io.h"
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#include "libaegisub/util.h"
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#include <algorithm>
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#include <boost/filesystem.hpp>
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#include <boost/filesystem/fstream.hpp>
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#include <boost/range/algorithm.hpp>
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#include <cstring>
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#include <functional>
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#include <mutex>
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namespace agi {
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namespace log {
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/// Global log sink.
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LogSink *log;
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/// Short Severity ID
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/// Keep this ordered the same as Severity
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const char *Severity_ID = "EAWID";
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LogSink::LogSink() : queue(dispatch::Create()) { }
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LogSink::~LogSink() {
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// The destructor for emitters may try to log messages, so disable all the
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// emitters before destructing any
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decltype(emitters) emitters_temp;
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queue->Sync([&]{ swap(emitters_temp, emitters); });
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}
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void LogSink::Log(SinkMessage const& sm) {
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queue->Async([=]{
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messages.push_back(sm);
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for (auto& em : emitters) em->log(&messages.back());
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});
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}
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void LogSink::Subscribe(std::unique_ptr<Emitter> em) {
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LOG_D("agi/log/emitter/subscribe") << "Subscribe: " << this;
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auto tmp = em.release();
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queue->Sync([=] { emitters.emplace_back(tmp); });
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}
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void LogSink::Unsubscribe(Emitter *em) {
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queue->Sync([=] {
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emitters.erase(
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boost::remove_if(emitters, [=](std::unique_ptr<Emitter> const& e) { return e.get() == em; }),
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emitters.end());
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});
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LOG_D("agi/log/emitter/unsubscribe") << "Un-Subscribe: " << this;
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}
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decltype(LogSink::messages) LogSink::GetMessages() const {
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decltype(messages) ret;
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queue->Sync([&] { ret = messages; });
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return ret;
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}
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Message::Message(const char *section, Severity severity, const char *file, const char *func, int line)
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: msg(buffer, sizeof buffer)
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{
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sm.section = section;
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sm.severity = severity;
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sm.file = file;
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sm.func = func;
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sm.line = line;
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sm.tv = util::time_log();
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}
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Message::~Message() {
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sm.message = std::string(msg.str(), (std::string::size_type)msg.pcount());
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agi::log::log->Log(sm);
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msg.freeze(false);
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}
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JsonEmitter::JsonEmitter(fs::path const& directory)
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: fp(new boost::filesystem::ofstream(unique_path(directory/util::strftime("%Y-%m-%d-%H-%M-%S-%%%%%%%%.json"))))
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{
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WriteTime("open");
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}
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JsonEmitter::~JsonEmitter() {
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WriteTime("close");
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}
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void JsonEmitter::log(SinkMessage *sm) {
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json::Object entry;
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entry["sec"] = (int64_t)sm->tv.tv_sec;
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entry["usec"] = (int64_t)sm->tv.tv_usec;
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entry["severity"] = sm->severity;
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entry["section"] = sm->section;
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entry["file"] = sm->file;
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entry["func"] = sm->func;
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entry["line"] = sm->line;
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entry["message"] = sm->message;
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json::Writer::Write(entry, *fp);
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fp->flush();
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}
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void JsonEmitter::WriteTime(const char *key) {
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auto time = util::time_log();
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json::Object obj;
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json::Array &timeval = obj[key];
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timeval.push_back((int64_t)time.tv_sec);
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timeval.push_back((int64_t)time.tv_usec);
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json::Writer::Write(obj, *fp);
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}
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} // namespace log
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} // namespace agi
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