pjs/ef/Utilities/General/LogModule.cpp

137 строки
2.6 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
// LogModule.cpp
//
// Scott M. Silver
//
#include <stdarg.h>
#include <string.h>
#include <malloc.h>
#include "prthread.h"
#include "prprf.h"
#include "LogModule.h"
#ifdef LOGMODULE_CLASS_IS_DEFINED
#define DEFAULT_LOG_FILENAME "ef.log"
// Default log file, if no module-specific files defined
static FILE* defaultLogFile = NULL;
LogModuleObject *LogModuleObject::allLogModules = NULL;
LogModuleObject::
LogModuleObject(const char* inModuleName, PRLogModuleOptions inOptions)
{
name = strdup(inModuleName);
level = PR_LOG_NONE;
options = inOptions;
file = NULL;
// Add this module to the chain of all logging modules
next = allLogModules;
allLogModules = this;
}
LogModuleObject::
~LogModuleObject()
{
if (name)
free((void*)name);
if (file)
fclose(file);
}
FILE *LogModuleObject::
getFile() const
{
if (file)
return file;
if (!defaultLogFile)
defaultLogFile = fopen(DEFAULT_LOG_FILENAME, "w");
return defaultLogFile;
}
size_t LogModuleObject::
logPrint(const char* inFormat, ...) const
{
char *msg;
size_t num_chars;
PRThread *me;
va_list ap;
va_start(ap, inFormat);
if (options & PR_LOG_OPTION_SHOW_THREAD_ID) {
char *format;
me = PR_GetCurrentThread();
format = PR_smprintf("[%p]: %s", me, inFormat);
if (!format)
return 0;
msg = PR_vsmprintf(format, ap);
PR_smprintf_free(format);
} else {
msg = PR_vsmprintf(inFormat, ap);
}
if (!msg)
return 0;
num_chars = strlen(msg);
FILE *f = getFile();
PR_ASSERT(f);
if (!f)
return 0;
fputs(msg, f);
if (options & PR_LOG_OPTION_ADD_NEWLINE)
fputs("\n", f);
PR_smprintf_free(msg);
return num_chars;
}
bool LogModuleObject::
setLogFile(const char* inFileName)
{
if (file)
fclose(file);
file = fopen(inFileName, "w");
return (file != NULL);
}
void LogModuleObject::
flushLogFile()
{
FILE *f;
f = getFile();
if (f)
fflush(file);
}
#endif