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120 lines
3.3 KiB
120 lines
3.3 KiB
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/syslog_logging.h"
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#if defined(OS_WIN)
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#include <windows.h>
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#include "base/bind.h"
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#include "base/callback_helpers.h"
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#include "base/debug/stack_trace.h"
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#elif defined(OS_LINUX)
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// <syslog.h> defines LOG_INFO, LOG_WARNING macros that could conflict with
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// base::LOG_INFO, base::LOG_WARNING.
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#include <syslog.h>
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#undef LOG_INFO
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#undef LOG_WARNING
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#endif
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#include <ostream>
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#include <string>
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namespace logging {
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#if defined(OS_WIN)
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namespace {
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std::string* g_event_source_name = nullptr;
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uint16_t g_category = 0;
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uint32_t g_event_id = 0;
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} // namespace
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void SetEventSource(const std::string& name,
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uint16_t category,
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uint32_t event_id) {
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DCHECK_EQ(nullptr, g_event_source_name);
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g_event_source_name = new std::string(name);
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g_category = category;
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g_event_id = event_id;
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}
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#endif // defined(OS_WIN)
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EventLogMessage::EventLogMessage(const char* file,
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int line,
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LogSeverity severity)
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: log_message_(file, line, severity) {
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}
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EventLogMessage::~EventLogMessage() {
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#if defined(OS_WIN)
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// If g_event_source_name is nullptr (which it is per default) SYSLOG will
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// degrade gracefully to regular LOG. If you see this happening most probably
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// you are using SYSLOG before you called SetEventSourceName.
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if (g_event_source_name == nullptr)
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return;
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HANDLE event_log_handle =
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RegisterEventSourceA(nullptr, g_event_source_name->c_str());
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if (event_log_handle == nullptr) {
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stream() << " !!NOT ADDED TO EVENTLOG!!";
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return;
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}
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base::ScopedClosureRunner auto_deregister(
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base::Bind(base::IgnoreResult(&DeregisterEventSource), event_log_handle));
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std::string message(log_message_.str());
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WORD log_type = EVENTLOG_ERROR_TYPE;
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switch (log_message_.severity()) {
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case LOG_INFO:
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log_type = EVENTLOG_INFORMATION_TYPE;
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break;
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case LOG_WARNING:
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log_type = EVENTLOG_WARNING_TYPE;
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break;
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case LOG_ERROR:
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case LOG_FATAL:
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// The price of getting the stack trace is not worth the hassle for
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// non-error conditions.
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base::debug::StackTrace trace;
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message.append(trace.ToString());
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log_type = EVENTLOG_ERROR_TYPE;
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break;
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}
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LPCSTR strings[1] = {message.data()};
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if (!ReportEventA(event_log_handle, log_type, g_category, g_event_id, nullptr,
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1, 0, strings, nullptr)) {
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stream() << " !!NOT ADDED TO EVENTLOG!!";
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}
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#elif defined(OS_LINUX)
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const char kEventSource[] = "chrome";
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openlog(kEventSource, LOG_NOWAIT | LOG_PID, LOG_USER);
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// We can't use the defined names for the logging severity from syslog.h
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// because they collide with the names of our own severity levels. Therefore
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// we use the actual values which of course do not match ours.
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// See sys/syslog.h for reference.
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int priority = 3;
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switch (log_message_.severity()) {
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case LOG_INFO:
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priority = 6;
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break;
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case LOG_WARNING:
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priority = 4;
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break;
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case LOG_ERROR:
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priority = 3;
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break;
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case LOG_FATAL:
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priority = 2;
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break;
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}
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syslog(priority, "%s", log_message_.str().c_str());
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closelog();
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#endif // defined(OS_WIN)
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}
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} // namespace logging
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