virtual bool SetPos(dword pos){
if(pos > CACHE_SIZE){
LOG_RUN("C_file::Write SetPos overflow");
return false;
}
curr_pos = pos;
return true;
}
~C_file_write(){
if(hnd){
//flushing must be done before without error
if(WriteFlush()){
//Fatal("Write error");
LOG_RUN("C_file::WriteFlush error");
}
win::CloseHandle(hnd);
}
}
virtual C_file::E_WRITE_STATUS Write(const void *mem, dword len){
if(len){
if(curr_pos + len > CACHE_SIZE){
LOG_RUN("C_file::Write reg write overflow");
return C_file::WRITE_FAIL;
}
MemCpy(cache+curr_pos, mem, len);
curr_pos += len;
}
return C_file::WRITE_OK;
}
bool C_file::Open(const wchar *fname, dword open_flags){
Close();
#ifdef _DEBUG
//make sure the filename doesn't contain 2 slashes
for(int i=1; fname[i]; i++){
if(fname[i]=='\\' && fname[i-1]=='\\')
return false;
}
#endif
bool is_registry = (*fname == ':');
switch(open_flags&0xff){
case FILE_READ:
{
C_file_read_base *cr;
if(!is_registry)
cr = new C_file_read;
else
cr = new C_file_read_registry;
imp = cr;
if(!cr->Open(fname)){
Close();
return false;
}
}
break;
case FILE_WRITE:
{
if(open_flags&FILE_WRITE_CREATE_PATH)
MakeSurePathExists(fname);
C_file_write_base *cw;
if(!is_registry)
cw = new C_file_write;
else
cw = new C_file_write_registry;
imp = cw;
if(!cw->Open(fname, open_flags)){
Close();
return false;
}
}
break;
default:
LOG_RUN("C_file: inv mode");
return false;
}
return true;
}
virtual byte ReadByte(){
if(curr==top){
dword sz = ReadCache();
if(sz < sizeof(byte)){
//THROW(FILE_ERR_EOF);
//Fatal("File", 1);
LOG_RUN("C_file::ReadByte eof");
return 0;
}
top = base + sz;
curr_pos += sz;
}
return *curr++;
}
void DBMainLoop::ExitFlag(int)
{
continueFlag = false;
LOG_RUN("Receive SIGUSR1, shutdown!");
}
