include/dynamic.h

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17
  18 #ifndef __DLL_H
  19 #define __DLL_H
  20
  21 typedef void * (initfunc) (void);
  22
  23 #include "inspircd_config.h"
  24
  25 extern void do_log(int, const char*, ...);
  26
  27 class DLLManager
  28 {
  29  public:
  30         DLLManager(const char *fname);
  31         virtual ~DLLManager();
  32
  33
  34 #ifdef STATIC_LINK
  35         bool GetSymbol( initfunc* &v, const char *sym_name );
  36 #else
  37         bool GetSymbol( void **, const char *sym_name );
  38 #endif
  39
  40         char* LastError()
  41         {
  42                  return err;
  43         }
  44
  45  protected:
  46         void *h;
  47         char *err;
  48 #ifdef STATIC_LINK
  49         char staticname[1024];
  50 #endif
  51 };
  52
  53
  54 class DLLFactoryBase : public DLLManager
  55 {
  56  public:
  57         DLLFactoryBase(const char *fname, const char *func_name = 0);
  58         virtual ~DLLFactoryBase();
  59 #ifdef STATIC_LINK
  60         initfunc *factory_func;
  61 #else
  62         void * (*factory_func)(void);
  63 #endif
  64 };
  65
  66 template <class T> class DLLFactory : public DLLFactoryBase
  67 {
  68  public:
  69         DLLFactory(const char *fname, const char *func_name=0) : DLLFactoryBase(fname,func_name)
  70         {
  71                 if (factory_func)
  72                         factory = reinterpret_cast<T*>(factory_func());
  73                 else
  74                         factory = reinterpret_cast<T*>(-1);
  75         }
  76
  77         ~DLLFactory()
  78         {
  79                 if (factory)
  80                         delete factory;
  81         }
  82
  83         T *factory;
  84 };
  85
  86 #endif