haiku/headers/private/app/TokenSpace.h

91 lines
2.3 KiB
C++

//------------------------------------------------------------------------------
// TokenSpace.h
//
//------------------------------------------------------------------------------
#ifndef TOKENSPACE_H
#define TOKENSPACE_H
// Standard Includes -----------------------------------------------------------
#include <map>
#include <stack>
// System Includes -------------------------------------------------------------
#include <BeBuild.h>
#include <Locker.h>
#include <SupportDefs.h>
// Project Includes ------------------------------------------------------------
// Local Includes --------------------------------------------------------------
// Local Defines ---------------------------------------------------------------
#define B_PREFERRED_TOKEN -2 /* A little bird told me about this one */
#define B_NULL_TOKEN -1
#define B_ANY_TOKEN 0
#define B_HANDLER_TOKEN 1
// Globals ---------------------------------------------------------------------
namespace BPrivate {
typedef void (*new_token_callback)(int16, void*);
typedef void (*remove_token_callback)(int16, void*);
typedef bool (*get_token_callback)(int16, void*);
class BTokenSpace
{
public:
BTokenSpace();
~BTokenSpace();
int32 NewToken(int16 type, void* object,
new_token_callback callback= NULL);
bool RemoveToken(int32 token, remove_token_callback callback = NULL);
bool CheckToken(int32, int16) const;
status_t GetToken(int32, int16, void**,
get_token_callback callback = NULL) const;
// Possible expansion
// void Dump(BDataIO&, bool) const;
// int32 NewToken(void*, BDirectMessageTarget*, void (*)(short, void*));
// bool SetTokenTarget(uint32, BDirectMessageTarget*);
// BDirectMessageTarget* TokenTarget(uint32 token, int16 type);
private:
struct TTokenInfo
{
int16 type;
void* object;
};
typedef std::map<int32, TTokenInfo> TTokenMap;
TTokenMap fTokenMap;
std::stack<int32> fTokenBin;
int32 fTokenCount;
BLocker fLocker;
};
// Possible expansion
//_delete_tokens_();
//_init_tokens_();
//get_handler_token(short, void*);
//get_token_list(long, long*);
//new_handler_token(short, void*);
//remove_handler_token(short, void*);
extern _IMPEXP_BE BTokenSpace gDefaultTokens;
} // namespace BPrivate
#endif //TOKENSPACE_H
/*
* $Log $
*
* $Id $
*
*/