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/*
Copyright (C) 2009 Red Hat, Inc.
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, see <http://www.gnu.org/licenses/>.
*/
#include "vdlog.h"
#include <stdio.h>
#include <stdarg.h>
#include <share.h>
#define LOG_ROLL_SIZE (1024 * 1024)
VDLog* VDLog::_log = NULL;
VDLog::VDLog(FILE* handle)
: _handle(handle)
{
_log = this;
}
VDLog::~VDLog()
{
if (_log && _handle) {
fclose(_handle);
_log = NULL;
}
}
VDLog* VDLog::get(TCHAR* path)
{
if (_log || !path) {
return _log;
}
DWORD size = 0;
HANDLE file = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
NULL);
if (file != INVALID_HANDLE_VALUE) {
size = GetFileSize(file, NULL);
CloseHandle(file);
}
if (size != INVALID_FILE_SIZE && size > LOG_ROLL_SIZE) {
TCHAR roll_path[MAX_PATH];
_sntprintf(roll_path, MAX_PATH, TEXT("%s.1"), path);
if (!MoveFileEx(path, roll_path, MOVEFILE_REPLACE_EXISTING)) {
return NULL;
}
}
FILE* handle = _wfsopen(path, L"a+", _SH_DENYNO);
if (!handle) {
return NULL;
}
_log = new VDLog(handle);
return _log;
}
void VDLog::printf(const char* format, ...)
{
va_list args;
va_start(args, format);
vfprintf(_handle, format, args);
va_end(args);
fflush(_handle);
}
void log_version()
{
DWORD handle;
TCHAR module_fname[MAX_PATH];
TCHAR* info_buf = NULL;
try {
if (!GetModuleFileName(NULL, module_fname, MAX_PATH)) {
throw;
}
DWORD version_inf_size = GetFileVersionInfoSize(module_fname, &handle);
if (version_inf_size == 0) {
throw;
}
TCHAR* info_buf = new TCHAR[version_inf_size];
if (!GetFileVersionInfo(module_fname, handle, version_inf_size, info_buf)) {
throw;
}
UINT size;
VS_FIXEDFILEINFO* file_info;
if (!VerQueryValue(info_buf, L"\\", (VOID**)&file_info, &size) ||
size < sizeof(VS_FIXEDFILEINFO)) {
throw;
}
vd_printf("%ld.%ld.%ld.%ld",
file_info->dwFileVersionMS >> 16,
file_info->dwFileVersionMS & 0x0ffff,
file_info->dwFileVersionLS >> 16,
file_info->dwFileVersionLS & 0x0ffff);
} catch (...) {
vd_printf("get version info failed");
}
delete[] info_buf;
}
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