freerdp/winpr/libwinpr/utils/wlog/Appender.c

/**
 * WinPR: Windows Portable Runtime
 * WinPR Logger
 *
 * Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "Appender.h"

void WLog_Appender_Free(wLog* log, wLogAppender* appender)
{
	if (!appender)
		return;

	if (appender->Layout)
	{
		WLog_Layout_Free(log, appender->Layout);
		appender->Layout = NULL;
	}

	DeleteCriticalSection(&appender->lock);
	appender->Free(appender);
}

wLogAppender* WLog_GetLogAppender(wLog* log)
{
	if (!log)
		return NULL;

	if (!log->Appender)
		return WLog_GetLogAppender(log->Parent);

	return log->Appender;
}

BOOL WLog_OpenAppender(wLog* log)
{
	int status = 0;
	wLogAppender* appender;

	appender = WLog_GetLogAppender(log);

	if (!appender)
		return FALSE;

	if (!appender->Open)
		return TRUE;

	if (!appender->active)
	{
		status = appender->Open(log, appender);
		appender->active = TRUE;
	}

	return status;
}

BOOL WLog_CloseAppender(wLog* log)
{
	int status = 0;
	wLogAppender* appender;

	appender = WLog_GetLogAppender(log);

	if (!appender)
		return FALSE;

	if (!appender->Close)
		return TRUE;

	if (appender->active)
	{
		status = appender->Close(log, appender);
		appender->active = FALSE;
	}

	return status;
}

static wLogAppender* WLog_Appender_New(wLog* log, DWORD logAppenderType)
{
	wLogAppender* appender;

	if (!log)
		return NULL;

	switch (logAppenderType)
	{
		case WLOG_APPENDER_CONSOLE:
			appender = WLog_ConsoleAppender_New(log);
			break;
		case WLOG_APPENDER_FILE:
			appender = WLog_FileAppender_New(log);
			break;
		case WLOG_APPENDER_BINARY:
			appender = WLog_BinaryAppender_New(log);
			break;
		case WLOG_APPENDER_CALLBACK:
			appender = WLog_CallbackAppender_New(log);
			break;
#ifdef HAVE_SYSLOG_H
		case WLOG_APPENDER_SYSLOG:
			appender = WLog_SyslogAppender_New(log);
			break;
#endif
#ifdef HAVE_JOURNALD_H
		case WLOG_APPENDER_JOURNALD:
			appender = WLog_JournaldAppender_New(log);
			break;
#endif
		case WLOG_APPENDER_UDP:
			appender = (wLogAppender*)WLog_UdpAppender_New(log);
			break;
		default:
			fprintf(stderr, "%s: unknown handler type %" PRIu32 "\n", __FUNCTION__,
			        logAppenderType);
			appender = NULL;
			break;
	}

	if (!appender)
		appender = (wLogAppender*)WLog_ConsoleAppender_New(log);

	if (!appender)
		return NULL;

	if (!(appender->Layout = WLog_Layout_New(log)))
	{
		WLog_Appender_Free(log, appender);
		return NULL;
	}

	InitializeCriticalSectionAndSpinCount(&appender->lock, 4000);

	return appender;
}

BOOL WLog_SetLogAppenderType(wLog* log, DWORD logAppenderType)
{
	if (!log)
		return FALSE;

	if (log->Appender)
	{
		WLog_Appender_Free(log, log->Appender);
		log->Appender = NULL;
	}

	log->Appender = WLog_Appender_New(log, logAppenderType);
	return log->Appender != NULL;
}

BOOL WLog_ConfigureAppender(wLogAppender* appender, const char* setting, void* value)
{
	/* Just check the settings string is not empty */
	if (!appender || !setting || (strnlen(setting, 2) == 0))
		return FALSE;

	if (appender->Set)
		return appender->Set(appender, setting, value);
	else
		return FALSE;
}