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/*
Miranda NG: the free IM client for Microsoft* Windows*
Copyright (c) 2012-14 Miranda NG project (http://miranda-ng.org),
Copyright (c) 2000-12 Miranda IM project,
all portions of this codebase are copyrighted to the people
listed in contributors.txt.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any 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
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "commonheaders.h"
#define SECRET_SIGNATURE 0x87654321
struct Logger
{
Logger(const char* pszName, const TCHAR *ptszDescr, const TCHAR *ptszFilename, unsigned options) :
m_name( mir_strdup(pszName)),
m_descr( mir_tstrdup(ptszDescr)),
m_fileName( mir_tstrdup(ptszFilename)),
m_options(options),
m_signature(SECRET_SIGNATURE),
m_out(NULL),
m_lastwrite(0)
{
InitializeCriticalSection(&m_cs);
}
~Logger()
{
if (m_out)
fclose(m_out);
DeleteCriticalSection(&m_cs);
}
int m_signature;
ptrA m_name;
ptrT m_fileName, m_descr;
FILE *m_out;
__int64 m_lastwrite;
unsigned m_options;
CRITICAL_SECTION m_cs;
};
static int CompareLoggers(const Logger *p1, const Logger *p2)
{ return strcmp(p1->m_name, p2->m_name);
}
static OBJLIST<Logger> arLoggers(1, CompareLoggers);
static __int64 llIdlePeriod;
void InitLogs()
{
LARGE_INTEGER li;
QueryPerformanceFrequency(&li);
llIdlePeriod = li.QuadPart;
}
void UninitLogs()
{
arLoggers.destroy();
}
void CheckLogs()
{
LARGE_INTEGER li;
QueryPerformanceCounter(&li);
for (int i=0; i < arLoggers.getCount(); i++) {
Logger &p = arLoggers[i];
mir_cslock lck(p.m_cs);
if (p.m_out && li.QuadPart - p.m_lastwrite > llIdlePeriod) {
fclose(p.m_out);
p.m_out = NULL;
}
else fflush(p.m_out);
}
}
////////////////////////////////////////////////////////////////////////////////////////////////
MIR_CORE_DLL(HANDLE) mir_createLog(const char* pszName, const TCHAR *ptszDescr, const TCHAR *ptszFile, unsigned options)
{
if (ptszFile == NULL)
return NULL;
Logger *result = new Logger(pszName, ptszDescr, ptszFile, options);
if (result == NULL)
return NULL;
int idx = arLoggers.getIndex(result);
if (idx != -1) {
delete result;
return &arLoggers[idx];
}
FILE *fp = _tfopen(ptszFile, _T("ab"));
if (fp == NULL) {
TCHAR tszPath[MAX_PATH];
_tcsncpy_s(tszPath, SIZEOF(tszPath), ptszFile, _TRUNCATE);
CreatePathToFileT(tszPath);
}
else fclose(fp);
DeleteFile(ptszFile);
arLoggers.insert(result);
return result;
}
////////////////////////////////////////////////////////////////////////////////////////////////
static Logger* prepareLogger(HANDLE logger)
{
if (logger == NULL)
return NULL;
Logger *p = (Logger*)logger;
return (p->m_signature == SECRET_SIGNATURE) ? p : NULL;
}
MIR_C_CORE_DLL(int) mir_writeLogA(HANDLE logger, const char *format, ...)
{
Logger *p = prepareLogger(logger);
if (p == NULL)
return 1;
mir_cslock lck(p->m_cs);
if (p->m_out == NULL)
if ((p->m_out = _tfopen(p->m_fileName, _T("ab"))) == NULL)
return 2;
va_list args;
va_start(args, format);
vfprintf(p->m_out, format, args);
LARGE_INTEGER li;
QueryPerformanceCounter(&li);
p->m_lastwrite = li.QuadPart;
return 0;
}
MIR_C_CORE_DLL(int) mir_writeLogW(HANDLE logger, const WCHAR *format, ...)
{
Logger *p = prepareLogger(logger);
if (p == NULL)
return 1;
mir_cslock lck(p->m_cs);
if (p->m_out == NULL)
if ((p->m_out = _tfopen(p->m_fileName, _T("ab"))) == NULL)
return 2;
va_list args;
va_start(args, format);
vfwprintf(p->m_out, format, args);
LARGE_INTEGER li;
QueryPerformanceCounter(&li);
p->m_lastwrite = li.QuadPart;
return 0;
}
////////////////////////////////////////////////////////////////////////////////////////////////
MIR_CORE_DLL(int) mir_writeLogVA(HANDLE logger, const char *format, va_list args)
{
Logger *p = prepareLogger(logger);
if (p == NULL)
return 1;
mir_cslock lck(p->m_cs);
if (p->m_out == NULL)
if ((p->m_out = _tfopen(p->m_fileName, _T("ab"))) == NULL)
return 2;
vfprintf(p->m_out, format, args);
LARGE_INTEGER li;
QueryPerformanceCounter(&li);
p->m_lastwrite = li.QuadPart;
return 0;
}
MIR_CORE_DLL(int) mir_writeLogVW(HANDLE logger, const WCHAR *format, va_list args)
{
Logger *p = prepareLogger(logger);
if (p == NULL)
return 1;
mir_cslock lck(p->m_cs);
if (p->m_out == NULL)
if ((p->m_out = _tfopen(p->m_fileName, _T("ab"))) == NULL)
return 2;
vfwprintf(p->m_out, format, args);
LARGE_INTEGER li;
QueryPerformanceCounter(&li);
p->m_lastwrite = li.QuadPart;
return 0;
}
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