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189 lines (119 loc) · 2.01 KB
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/*
* Semaphor.cpp
*
* Created on: Jul 6, 2015
* Author: OS1
*/
#include "Semaphor.h"
#include "util.h"
#include "SysCall.h"
#include <dos.h>
#include "KernQue.h"
Argumenti* argg = new Argumenti();
Semaphore::Semaphore(int init) {
argg->init = init;
int flag = 5;
unsigned off,sg;
#ifndef BCC_BLOCK_IGNORE
off = FP_OFF(argg);
sg = FP_SEG(argg);
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
mov dx, flag
mov cx, off
mov bx, sg
}
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
int 60;
}
#endif
SemID = argg->semID;
}
Semaphore::~Semaphore() {
argg->semID = SemID;
int flag = 16;
unsigned off,sg;
#ifndef BCC_BLOCK_IGNORE
off = FP_OFF(argg);
sg = FP_SEG(argg);
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
mov dx, flag
mov cx, off
mov bx, sg
}
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
int 60;
}
#endif
}
void Semaphore::signal() {
argg->semID = SemID;
int flag = 9;
unsigned off,sg;
#ifndef BCC_BLOCK_IGNORE
off = FP_OFF(argg);
sg = FP_SEG(argg);
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
mov dx, flag
mov cx, off
mov bx, sg
}
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
int 60;
}
#endif
}
int Semaphore::val() const {
argg->semID = SemID;
int flag = 7;
unsigned off,sg;
#ifndef BCC_BLOCK_IGNORE
off = FP_OFF(argg);
sg = FP_SEG(argg);
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
mov dx, flag
mov cx, off
mov bx, sg
}
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
int 60;
}
#endif
return argg->val;
}
void Semaphore::wait() {
argg->semID = SemID;
int flag = 8;
unsigned off,sg;
#ifndef BCC_BLOCK_IGNORE
off = FP_OFF(argg);
sg = FP_SEG(argg);
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
mov dx, flag
mov cx, off
mov bx, sg
}
#endif
#ifndef BCC_BLOCK_IGNORE
asm {
int 60;
}
#endif
}