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New multiplex scheme so that handlers can be removed

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2146
This commit is contained in:
Peter Veenstra 2005-03-25 08:51:34 +00:00
parent 5ef7187b28
commit c7a8672c2c
1 changed files with 18 additions and 18 deletions
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36
src/dos/dos_misc.cpp
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@ -16,37 +16,39 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos_misc.cpp,v 1.14 2005-02-14 15:58:50 qbix79 Exp $ */
/* $Id: dos_misc.cpp,v 1.15 2005-03-25 08:51:34 qbix79 Exp $ */
#include "dosbox.h"
#include "callback.h"
#include "mem.h"
#include "regs.h"
#include "dos_inc.h"
#include <list>
static Bitu call_int2f,call_int2a;
struct MultiplexBlock {
MultiplexHandler * handler;
MultiplexBlock * next;
};
static MultiplexBlock * first_multiplex;
static std::list<MultiplexHandler*> Multiplex;
typedef std::list<MultiplexHandler*>::iterator Multiplex_it;
void DOS_AddMultiplexHandler(MultiplexHandler * handler) {
MultiplexBlock * new_multiplex=new(MultiplexBlock);
new_multiplex->next=first_multiplex;
new_multiplex->handler=handler;
first_multiplex=new_multiplex;
Multiplex.push_front(handler);
}
void DOS_DelMultiplexHandler(MultiplexHandler * handler) {
for(Multiplex_it it =Multiplex.begin();it != Multiplex.end();it++) {
if(*it == handler) {
Multiplex.erase(it);
return;
}
}
}
static Bitu INT2F_Handler(void) {
MultiplexBlock * loop_multiplex=first_multiplex;
while (loop_multiplex) {
if ((*loop_multiplex->handler)()) return CBRET_NONE;
loop_multiplex=loop_multiplex->next;
}
LOG(LOG_DOSMISC,LOG_ERROR)("DOS:Multiplex Unhandled call %4X",reg_ax);
for(Multiplex_it it = Multiplex.begin();it != Multiplex.end();it++)
if( (*it)() ) return CBRET_NONE;
LOG(LOG_DOSMISC,LOG_ERROR)("DOS:Multiplex Unhandled call %4X",reg_ax);
return CBRET_NONE;
};
@ -122,7 +124,6 @@ static bool DOS_MultiplexFunctions(void) {
void DOS_SetupMisc(void) {
/* Setup the dos multiplex interrupt */
first_multiplex=0;
call_int2f=CALLBACK_Allocate();
CALLBACK_Setup(call_int2f,&INT2F_Handler,CB_IRET,"DOS Int 2f");
RealSetVec(0x2f,CALLBACK_RealPointer(call_int2f));
@ -132,4 +133,3 @@ void DOS_SetupMisc(void) {
CALLBACK_Setup(call_int2a,&INT2A_Handler,CB_IRET,"DOS Int 2a");
RealSetVec(0x2A,CALLBACK_RealPointer(call_int2a));
};