phoenix-firestorm/indra/llcommon/lllivefile.h

38 lines
864 B
C++

/**
* @file lllivefile.h
* @brief Automatically reloads a file whenever it changes or is removed.
*
* Copyright (c) 2006-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#ifndef LL_LLLIVEFILE_H
#define LL_LLLIVEFILE_H
class LLLiveFile
{
public:
LLLiveFile(const std::string &filename, const F32 refresh_period = 5.f);
virtual ~LLLiveFile();
bool checkAndReload();
// Returns true if the file changed in any way
// Call this before using anything that was read & cached from the file
std::string filename() const;
void addToEventTimer();
// Normally, just calling checkAndReload() is enough. In some cases
// though, you may need to let the live file periodically check itself.
protected:
virtual void loadFile() = 0; // Implement this to load your file if it changed
private:
class Impl;
Impl& impl;
};
#endif //LL_LLLIVEFILE_H