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/*********************************************************
* Copyright (C) 2010 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/**
* @file vmxLogger.c
*
* A logger that writes the logs to the VMX log file.
*/
#include "vmtoolsInt.h"
#include "vmware/tools/guestrpc.h"
typedef struct VMXLoggerData {
GlibLogger handler;
GStaticMutex lock;
RpcChannel *chan;
} VMXLoggerData;
/*
*******************************************************************************
* VMXLoggerLog -- */ /**
*
* Logs a message to the VMX using RpcChannel.
*
* The logger uses its own RpcChannel, opening and closing the channel for each
* log message sent. This is not optimal, especially if the application already
* has an RpcChannel instantiated; this could be fixed by providing a way for
* the application to provide its own RpcChannel to the logging code, if it uses
* one, so that this logger can re-use it.
*
* @param[in] domain Unused.
* @param[in] level Log level.
* @param[in] message Message to log.
* @param[in] data VMX logger data.
*
*******************************************************************************
*/
static void
VMXLoggerLog(const gchar *domain,
GLogLevelFlags level,
const gchar *message,
gpointer data)
{
VMXLoggerData *logger = data;
g_static_mutex_lock(&logger->lock);
/*
* To avoid nested logging inside of RpcChannel, we need to disable logging
* here. See bug 1069390.
*/
VMTools_StopLogging();
if (RpcChannel_Start(logger->chan)) {
gchar *msg;
gint cnt = VMToolsAsprintf(&msg, "log %s", message);
RpcChannel_Send(logger->chan, msg, cnt, NULL, NULL);
g_free(msg);
RpcChannel_Stop(logger->chan);
}
VMTools_RestartLogging();
g_static_mutex_unlock(&logger->lock);
}
/*
*******************************************************************************
* VMXLoggerDestroy -- */ /**
*
* Cleans up the internal state of a VMX logger.
*
* @param[in] data VMX logger data.
*
*******************************************************************************
*/
static void
VMXLoggerDestroy(gpointer data)
{
VMXLoggerData *logger = data;
RpcChannel_Destroy(logger->chan);
g_static_mutex_free(&logger->lock);
g_free(logger);
}
/*
*******************************************************************************
* VMToolsCreateVMXLogger -- */ /**
*
* Configures a new VMX logger.
*
* @return The VMX logger data.
*
*******************************************************************************
*/
GlibLogger *
VMToolsCreateVMXLogger(void)
{
VMXLoggerData *data = g_new0(VMXLoggerData, 1);
data->handler.logfn = VMXLoggerLog;
data->handler.addsTimestamp = TRUE;
data->handler.shared = TRUE;
data->handler.dtor = VMXLoggerDestroy;
g_static_mutex_init(&data->lock);
data->chan = RpcChannel_New();
return &data->handler;
}
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