gecko-dev/modules/ipc/common/ipcLog.cpp

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3.4 KiB
C++

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla IPC.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "ipcLog.h"
#ifdef IPC_LOGGING
#include <string.h>
#include "prenv.h"
#include "prprf.h"
#include "plstr.h"
PRBool ipcLogEnabled = PR_FALSE;
char ipcLogPrefix[10] = {0};
//-----------------------------------------------------------------------------
// UNIX
//-----------------------------------------------------------------------------
#ifdef XP_UNIX
#include <sys/types.h>
#include <unistd.h>
static inline PRUint32
WritePrefix(char *buf, PRUint32 bufLen)
{
return PR_snprintf(buf, bufLen, "[%u] %s ",
(unsigned) getpid(),
ipcLogPrefix);
}
#endif
//-----------------------------------------------------------------------------
// WIN32
//-----------------------------------------------------------------------------
#ifdef XP_WIN
#include <windows.h>
static inline PRUint32
WritePrefix(char *buf, PRUint32 bufLen)
{
return PR_snprintf(buf, bufLen, "[%u:%u] %s ",
GetCurrentProcessId(),
GetCurrentThreadId(),
ipcLogPrefix);
}
#endif
//-----------------------------------------------------------------------------
// logging API impl
//-----------------------------------------------------------------------------
void
IPC_InitLog(const char *prefix)
{
if (PR_GetEnv("IPC_LOG_ENABLE")) {
ipcLogEnabled = PR_TRUE;
PL_strncpyz(ipcLogPrefix, prefix, sizeof(ipcLogPrefix));
}
}
void
IPC_Log(const char *fmt, ... )
{
va_list ap;
va_start(ap, fmt);
PRUint32 nb = 0;
char buf[512];
if (ipcLogPrefix[0])
nb = WritePrefix(buf, sizeof(buf));
PR_vsnprintf(buf + nb, sizeof(buf) - nb, fmt, ap);
buf[sizeof(buf) - 1] = '\0';
fwrite(buf, strlen(buf), 1, stdout);
va_end(ap);
}
#endif