/*
 * Function to export chosen addresses of public API function
 *
 * Copyright 2010 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
 *
 * 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, 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; see the file LICENSE.txt.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
 *
 * As a special exception, the Harbour Project gives permission for
 * additional uses of the text contained in its release of Harbour.
 *
 * The exception is that, if you link the Harbour libraries with other
 * files to produce an executable, this does not by itself cause the
 * resulting executable to be covered by the GNU General Public License.
 * Your use of that executable is in no way restricted on account of
 * linking the Harbour library code into it.
 *
 * This exception does not however invalidate any other reasons why
 * the executable file might be covered by the GNU General Public License.
 *
 * This exception applies only to the code released by the Harbour
 * Project under the name Harbour.  If you copy code from other
 * Harbour Project or Free Software Foundation releases into a copy of
 * Harbour, as the General Public License permits, the exception does
 * not apply to the code that you add in this way.  To avoid misleading
 * anyone as to the status of such modified files, you must delete
 * this exception notice from them.
 *
 * If you write modifications of your own for Harbour, it is your choice
 * whether to permit this exception to apply to your modifications.
 * If you do not wish that, delete this exception notice.
 *
 */

#include "hbapi.h"
#include "hbvm.h"

PHB_FUNC hb_vmProcAddress( const char * szFuncName )
{
   typedef struct
   {
      const char * szFuncName;
      PHB_FUNC     pFuncAddr;
   }
   HB_FUNC_REF_ADDR;

   /* NOTE: this table must be well sorted by function names */
   static const HB_FUNC_REF_ADDR s_funcTable[] =
   {
      { "hb_arrayAdd",         ( PHB_FUNC ) hb_arrayAdd               },
      { "hb_arrayDel",         ( PHB_FUNC ) hb_arrayDel               },
      { "hb_arrayGet",         ( PHB_FUNC ) hb_arrayGet               },
      { "hb_arrayIns",         ( PHB_FUNC ) hb_arrayIns               },
      { "hb_arrayIsObject",    ( PHB_FUNC ) hb_arrayIsObject          },
      { "hb_arrayLast",        ( PHB_FUNC ) hb_arrayLast              },
      { "hb_arrayLen",         ( PHB_FUNC ) hb_arrayLen               },
      { "hb_arrayNew",         ( PHB_FUNC ) hb_arrayNew               },
      { "hb_arraySet",         ( PHB_FUNC ) hb_arraySet               },
      { "hb_arraySize",        ( PHB_FUNC ) hb_arraySize              },
      { "hb_extIsArray",       ( PHB_FUNC ) hb_extIsArray             },
      { "hb_extIsNil",         ( PHB_FUNC ) hb_extIsNil               },
      { "hb_param",            ( PHB_FUNC ) hb_param                  },
      { "hb_paramError",       ( PHB_FUNC ) hb_paramError             },
      { "hb_parinfa",          ( PHB_FUNC ) hb_parinfa                },
      { "hb_parinfo",          ( PHB_FUNC ) hb_parinfo                },
      { "hb_parvc",            ( PHB_FUNC ) hb_parvc                  },
      { "hb_parvclen",         ( PHB_FUNC ) hb_parvclen               },
      { "hb_parvcsiz",         ( PHB_FUNC ) hb_parvcsiz               },
      { "hb_parvds",           ( PHB_FUNC ) hb_parvds                 },
      { "hb_parvdsbuff",       ( PHB_FUNC ) hb_parvdsbuff             },
      { "hb_parvl",            ( PHB_FUNC ) hb_parvl                  },
      { "hb_parvnd",           ( PHB_FUNC ) hb_parvnd                 },
      { "hb_parvni",           ( PHB_FUNC ) hb_parvni                 },
      { "hb_parvnl",           ( PHB_FUNC ) hb_parvnl                 },
      { "hb_pcount",           ( PHB_FUNC ) hb_pcount                 },
      { "hb_ret",              ( PHB_FUNC ) hb_ret                    },
      { "hb_reta",             ( PHB_FUNC ) hb_reta                   },
      { "hb_retc",             ( PHB_FUNC ) hb_retc                   },
      { "hb_retclen",          ( PHB_FUNC ) hb_retclen                },
      { "hb_retd",             ( PHB_FUNC ) hb_retd                   },
      { "hb_retdl",            ( PHB_FUNC ) hb_retdl                  },
      { "hb_retds",            ( PHB_FUNC ) hb_retds                  },
      { "hb_retl",             ( PHB_FUNC ) hb_retl                   },
      { "hb_retnd",            ( PHB_FUNC ) hb_retnd                  },
      { "hb_retndlen",         ( PHB_FUNC ) hb_retndlen               },
      { "hb_retni",            ( PHB_FUNC ) hb_retni                  },
      { "hb_retnilen",         ( PHB_FUNC ) hb_retnilen               },
      { "hb_retnl",            ( PHB_FUNC ) hb_retnl                  },
      { "hb_retnlen",          ( PHB_FUNC ) hb_retnlen                },
      { "hb_retnllen",         ( PHB_FUNC ) hb_retnllen               },
      { "hb_storvc",           ( PHB_FUNC ) hb_storvc                 },
      { "hb_storvclen",        ( PHB_FUNC ) hb_storvclen              },
      { "hb_storvds",          ( PHB_FUNC ) hb_storvds                },
      { "hb_storvl",           ( PHB_FUNC ) hb_storvl                 },
      { "hb_storvnd",          ( PHB_FUNC ) hb_storvnd                },
      { "hb_storvni",          ( PHB_FUNC ) hb_storvni                },
      { "hb_storvnl",          ( PHB_FUNC ) hb_storvnl                },
      { "hb_vmExecute",        ( PHB_FUNC ) hb_vmExecute              },
      { "hb_vmProcessSymbols", ( PHB_FUNC ) hb_vmProcessDynLibSymbols },
      { "hb_xalloc",           ( PHB_FUNC ) hb_xalloc                 },
      { "hb_xfree",            ( PHB_FUNC ) hb_xfree                  },
      { "hb_xgrab",            ( PHB_FUNC ) hb_xgrab                  },
      { "hb_xrealloc",         ( PHB_FUNC ) hb_xrealloc               }
   };

   unsigned int uiFirst = 0, uiLast = HB_SIZEOFARRAY( s_funcTable ), uiMiddle;
   int iCmp;

   do
   {
      uiMiddle = ( uiFirst + uiLast ) >> 1;
      iCmp = strcmp( szFuncName, s_funcTable[ uiMiddle ].szFuncName );
      if( iCmp <= 0 )
         uiLast = uiMiddle;
      else
         uiFirst = uiMiddle + 1;
   }
   while( uiFirst < uiLast );

   if( uiFirst != uiMiddle )
      iCmp = strcmp( szFuncName, s_funcTable[ uiFirst ].szFuncName );

   return iCmp == 0 ? s_funcTable[ uiFirst ].pFuncAddr : NULL;
}
