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AmigActive 10
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AACD 10.iso
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PalmLink
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PL_Init.c
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C/C++ Source or Header
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2000-05-05
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128 lines
/**
* PalmLink -- Connect 3Com Palm with Amiga
*
* Library initialization, C part
*
* (C) 1998-2000 Richard Körber <rkoerber@gmx.de>
*
*------------------------------------------------------------------
*
* 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 of the License, or
* 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; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* You must not use this source code to gain profit of any kind!
*/
#include "palmlink_glob.h"
/*----------------------------------------------------------------
** GLOBAL VARIABLES
*/
struct DOSBase *DOSBase;
struct Library *UtilityBase;
struct Library *SysBase;
struct Library *RexxSysBase;
struct Library *PalmlinkBase;
struct Global global;
/*----------------------------------------------------------------
** InitGlobal Initializes the global structure
*/
static int InitGlobal(void)
{
for(;;)
{
if(!(global.slptrash = AllocMem(1024,MEMF_PUBLIC))) break;
NewList(&global.rexxHandles);
InitSemaphore(&global.rexxHandleSemaphore);
global.rexxHandleOK = TRUE;
return 1; // Okay
}
return 0; // Failure
}
/*----------------------------------------------------------------
** ExitGlobal Frees global structure
*/
static void ExitGlobal(void)
{
struct RexxHandle *thisNode, *nextNode;
if(global.slptrash) FreeMem(global.slptrash,1024);
if(global.rexxHandleOK)
{
global.rexxHandleOK = FALSE;
ObtainSemaphore(&global.rexxHandleSemaphore);
for // Clean up the handle list
(
thisNode = (struct RexxHandle *)global.rexxHandles.lh_Head;
nextNode = (struct RexxHandle *)thisNode->rh_node.ln_Succ;
thisNode = nextNode
)
{
Remove((struct Node *)thisNode),
FreeVec(thisNode);
}
}
return;
}
/*----------------------------------------------------------------
** LibExit Finishes Library
*/
__saveds __asm void LibExit(void)
{
ExitGlobal();
if(DOSBase) CloseLibrary((struct Library *)DOSBase);
if(UtilityBase) CloseLibrary( UtilityBase);
if(RexxSysBase) CloseLibrary( RexxSysBase);
}
/*----------------------------------------------------------------
** LibInit Initializes the Library
*/
__saveds __asm struct Library *LibInit
(
register __a0 struct Library *exec,
register __a1 struct Library *base
)
{
SysBase = exec;
PalmlinkBase = base;
for(;;)
{
if(!(DOSBase = (struct DOSBase *) OpenLibrary("dos.library" ,36L))) break;
if(!(UtilityBase = OpenLibrary("utility.library" ,36L))) break;
if(!(RexxSysBase = OpenLibrary("rexxsyslib.library" ,36L))) break;
if(!(InitGlobal())) break;
return(base); // Everything worked fine
}
LibExit();
return(0);
}
/****************************************************************/