activation.h

一个操作系统的源代码

/** activation.h
 **
 ** Original Author: Kasper Verdich Lund
 ** Date: 11.13.99
 **
 ** Description:
 ** Activation routines
 ** 
 ** 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 (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 or 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., 59 Temple Place, Suite 330,
 ** Boston, MA 02111-1307 USA
 **
 *********************************************************Apostle OS**/

#ifndef __ACTIVATION_H_
#define __ACTIVATION_H_

#include <types.h>

#define QUANTUM      10
#define UPCALL_SAVES 10

typedef struct activation {
  struct activation *next;
  dword eax;
  dword ebx;
  dword ecx;
  dword edx;
  dword esi;
  dword edi;
  dword eip;
  dword eflags;
  dword esp;
  dword ebp;
  dword esp0;
  int quantum;
  int upcallCount;
} Activation __attribute__ ((packed));

typedef Activation *ActivationQueue;

Activation *NewActivation(void);
void       InitializeActivation(Activation *a);
void       InsertActivation(ActivationQueue *q, Activation *a);
Activation *RemoveActivation(ActivationQueue *q, int count);
void       KernelResume(Activation *a);
void       ProcessResume(Activation *a);

#endif /* __ACTIVATION_H_ */